Truvelo ProLaser 4 User manual

Brand: Truvelo

Model: ProLaser 4

Type: User manual

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

ProLaser 4

OPERATOR’S MANUAL

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

The ProLaser 4

is distributed in the UK by

Truvelo (UK) Ltd

Tel: 020 8847 4400 info@truvelouk.com www.truvelouk.com

Please contact our Service Dept for all technical queries, repairs or calibrations.

System Components

The ProLaser 4 speed detection system consists of the following components:

 ProLaser 4

 Carrying case

 Operator’s Manual

 Calibration certificate

 AA batteries (4)

Options

 Tripod

 Shoulder stock

 Neck strap

 Soft bag

PLEASE NOTE

OPERATIONAL RANGE

The ProLaser 4 has a maximum range restricted to 750 metres for use in the UK.

The minimum range is 3 metres.

Speed range 0 to 200mph

When selecting a roadside location please take account of Health and Safety considerations

for operator safety.

Batteries

Your ProLaser 4 is supplied with Duracell Ultra Power AA size disposable batteries which are our

recommendation. These have been chosen after testing a number of well know brands. If however,

you prefer to use rechargeable batteries we would recommend the Ansmann Ni MH

2700mAh, AA size.

This publication may not be reproduced, stored in a retrieval system, or transmitted in whole or in part in any form or by any means electronic,

mechanical, photocopying, recording, or otherwise without prior written permission of Truvelo (UK) Ltd.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

PROLASER 4 QUICK START GUIDE

ProLaser 4 Multi-function Buttons

BUTTON

SINGLE PRESS

PUSH AND HOLD

Power

Rear Display Brightness

Power On / Off

Poor Weather

HUD Brightness

Poor Weather Mode

Speed – Range

Speed or Range

Up (In Menu)

Volume

Down (In Menu)

Tick

Lock Mode

Self Test

First Time Operation

1). Press and hold Power button to turn on.

2). Hold unit by handle and aim at target using HUD.

3). Press and hold the trigger to fire the laser.

4). Position the reticle on the target and track the vehicle.

5). While holding the trigger, the speed and range continually update. A “single shot” mode will not

update as you track.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

6). Audio tones provide targeting feedback:-

a).Varying tones indicate speed data has been received.

b).Solid tone indicates target acquired.

c).Intermittent regular beep – target out of range.

7). Release trigger to lock speed – this is displayed on the HUD and on the rear panel.

a). Count-up timer starts.

8). Press tick button to unlock the display. Wait 3 seconds and pull trigger again to clear the display.

9). Press tick button to lock any speed recorded. Press Tick button again to unlock.

10).Press and hold Tick Button to perform a Self Test.

ACCURACY TEST

Range and alignment tests should be carried out periodically, with a record being made that can be

recalled if required. For example in an equipment log, a witness statement or a pocket notebook.

Press the PWR switch on the back panel and allow the instrument to complete the self-test sequence.

The internal test performs a complete check of the ProLaser 4’s range and speed processing circuitry.

The following tests may then be carried out.

ALIGNMENT TEST

First check the alignment of the head-up display (HUD) aiming reticle. Select an isolated target 30

metres or more away (100ft), such as a Stop sign, utility pole or overhead power wire. Slowly sweep

the ProLaser 4 across the target and observe that the proper range is is displayed only when the target

is within the reticule area, indicating lateral alignment. Listening to the “chirp” indicating reflection of

laser pulses is helpful when using overhead wires. Rotate the ProLaser 4 so that it is at right angles to

its normal operating position (positioned on its side) and repeat the process to verify vertical alignment.

RANGE TEST

Lay out a range of known distance using one of the methods in Chapter 10 of the “ACPO Guidance for

the Operational Use of Speed and Red-Light Offence Detection Technology”. Make a measurement of

the distance between the reference mark and the target. The measurement should be taken from the

front face of the ProLaser 4. The speed should read 0 mph and the range should match the pre-

measured distance. Any difference should not exceed +/- 0.2 of a metre. A Range test can be carried

out in Speed mode or Range mode.

We recommend that if an operator wishes to evidence that the system confidence checks were correct

at the start and end of the enforcement, that they do that. ACPO have removed “must” from their

guidance.

SPEED ACCURACY TEST

The ProLaser 4 will measure speeds of 0mph up to 200mph. Therefore, to make a speed accuracy test

point the laser at a stationary target such as a roadsign. Pull the trigger and check that the speed

reading is 0mph.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Chapter 1: ProLaser 4 Description

Control Locations

Operation of the ProLaser 4 primarily involves using the rear display, the control buttons that are

located on the back panel, the Head-Up Display (HUD) on top of the unit, and the trigger that is used to

activate the unit. These controls are briefly described below

A. Organic Light Emitting Diode (OLED): A display window that shows speed, range, command

menus and unit status in a text format.

B. Power Button: A dual-function button used to turn the unit On and Off and control the rear

display brightness in Speed and Range modes.

C. Weather Button: A dual-function button used to set the unit’s Inclement Weather feature and

set HUD Brightness in Speed and Range modes.

D. Menu Button: Used to enter the Menu set-up mode and configure the unit’s 6 major functions.

In Menu mode, pressing the menu button exits and returns to Speed and Range modes.

E. Speed/Up Button: A dual-function button that sets Speed or Range mode and is used to

navigate between the Menu set-up screens in Menu mode. This button is referred to as the up button in

Menu mode.

F. Down/Volume Button: A dual-function button that sets the audio alert sound level in Speed or

Range mode and is used to navigate between the Menu set-up screens in Menu mode. This button is

referred to as the down button in Menu mode.

G. Tick Button: A multi-function button that runs the unit’s “self test” when pressed for 3 seconds

in Speed or Range mode. The tick button is also used to lock and release speed and range displays.

On the Menu set-up screens, the tick button is used to select menu options.

H. Head-Up Display (HUD): displays the aiming reticle, speed and range of a target.

I. Type A – USB Host Port: this port is for future development and is not used at this time.

Type B – USB Device Port: provides a means to physically connect the ProLaser 4 to a

Windows PC.

K Trigger: Activates the range/speed measurement function.

See Figure 1-1 on next page.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Item Description Item Description

A OLED display G Tick button

B Power button H Head-Up Display (HUD)

C Weather button I Type A - USB port (not used)

D Menu button J Type B - USB port

E Speed/up button K Trigger

F Down/volume button

Figure 1-1. ProLaser 4 Controls

Shown with USB cover

removed for clarity.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Chapter 2: System Operation

General Description

This chapter provides a detailed explanation of the operating characteristics of the ProLaser 4 speed

detection system.

The ProLaser 4 is a versatile instrument that measures both the range and speed of selected targets.

The advanced technology of the ProLaser 4 provides pinpoint aiming capability, permitting the user to

isolate a single vehicle out of a group. At the maximum range of 750 metres the laser beam is only

750mm wide. The technology employed in the ProLaser 4 also renders laser detection devices

relatively ineffective due to the pinpoint accuracy of the system.

The ProLaser 4 emits 200 light pulses per second. Because the wavelength of these light pulses is so

much shorter than microwaves, they can be readily focused into a narrow beam for accurate target

identification.

The technology used by the ProLaser 4 to measure distances and speeds is referred to as LIDAR,

which stands for light detection and ranging. When the trigger is pulled, the ProLaser 4 sends out two

hundred invisible infrared laser light pulses per second. As each pulse is transmitted, a timer is started,

and when the energy of a laser pulse is reflected from a target and received by the ProLaser 4, the

timer is stopped. From the elapsed time taken for the laser pulse to strike and return from the target,

the distance to the object is calculated with the known speed of light through the atmosphere. If the

target is moving with respect to the ProLaser 4, a sophisticated algorithm is used to derive the speed of

the target from a successive number of range calculations. This speed determination is then displayed

to the user.

Rear Display Control Descriptions

In Chapter 1 ProLaser 4 Description, the locations of the operating controls and displays were

introduced. (See fig 1-1). This chapter will provide detailed descriptions of each control and display.

Trigger

The trigger of the ProLaser 4 performs two functions. When the trigger is pulled, it activates the firing of

laser pulses and the range and speed measurement functions of the system. When the trigger is

released, the ProLaser 4 locks the last measured speed and range in the HUD and rear display.

Rear Display Control Buttons

The control buttons that are located adjacent to the Rear Display provide dual and multi-functionality

based on whether the unit is in Speed or Range mode or within the Menu set-up screens.

Power Button to Power On/Off

The Power Button performs two functions. It turns the unit On and Off and is used to set the brightness

of the rear display. If the ProLaser 4 is off, a single press and release of the Power Button will turn the

unit ON. Once it has powered on, press and hold the Power Button for three seconds to power the

ProLaser 4 OFF. (The ProLaser 4 will go into Sleep mode after two minutes of inactivity.)

Power Button to Control Brightness

Two separate buttons are used to adjust the brightness of the Rear Display and the Head-Up Display.

Rear Display Brightness: In Speed or Range mode, use the Power Button to set Rear Display

brightness. Five brightness settings ranging from minimum to maximum are available. Pressing the

Power Button six times cycles through all the settings (1-2-3-4-5 and back to 1). Each increment is

indicated by three lines on the display. Three lines indicate one. In the following Fig 2.1, the six lines

on the display indicate that the current setting is two.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Figure 2-1. Rear Display Brightness Screen

Weather Button

The Weather Button performs two functions. It sets the brightness of the Head-Up Display (HUD) and

turns the unit’s inclement weather feature on and off.

In either Speed or Range mode, use the Weather Button to set the brightness of the HUD, using the

HUD Brightness menu. Five brightness settings ranging from minimum to maximum are available.

Each increment is indicated by three vertical lines. In the following graphic, there are six lines,

indicating that the current setting is two. Pressing the weather button six time cycles through all the

settings (1-2-3-4-5 and back to 1).

Avoid using excessively bright settings for lower level ambient light conditions as this makes target

identification more difficult. Upon being powered up, the ProLaser 4 automatically defaults to the

brightness level set at the factory.

Figure 2-2. Weather Button Location

In Menu set-up mode, press the Weather Button once on any of the Menu screens to set the unit’s

Inclement Weather feature. The Weather icon displays on the rear display as shown above whenever

the unit is set for inclement weather. The Weather Mode prevents the ProLaser 4 operating below 60

metres and enables it to operate more efficiently in adverse weather conditions. In Speed or Range

mode press and hold the Weather Button for three seconds to set Inclement Weather mode.

Tick Button

The Tick Button is located on the back panel. This button is used to initiate three functions.

 In Speed or Range mode, press and hold the Tick Button for three seconds to initiate a self-test.

Refer to Power-On Sequence for details about self-test messages.

 The Tick Button is also used to activate Lock mode after taking range or speed readings. Press

the tick button once after releasing the trigger to lock the reading on the display. The Lock icon

displays when the unit is in Lock mode. To clear the locked range and speed displays in Lock

mode, momentarily press the Tick Button.

 The Tick Button is also used to select menu options. Press the button when a menu or menu

option is displayed to access the selected menu, or select the displayed option.

Weather button

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Figure 2-3. Tick Button Location

Menu Button

In Speed or Range mode, press the Menu button to enter the Menu set-up mode. There are six

submenus that can be accessed in Menu set-up mode. A menu tree icon displays on the left side of

the rear display to indicate where the user is within the menu screens. Text above the Up and Down

Buttons identifies the previous and next menu function.

Figure 2-4. Menu Mode – Displaying the Distance Menu Selection

The configurable menu functions are:

Distance

HUD options

Set Direction

Set Time/Date

Continuous/ Single

Enforcement Limit

The ProLaser 4 menu operation is covered in detail in Chapter 3 “Using the ProLaser 4 Menu System”.

Speed/Up Button

The Speed/Up Button performs two functions. It sets the unit to either Speed or Range mode and

navigates between screens and options in the Menu mode. In Speed or Range mode, the user can

toggle between the two modes by pressing the Speed/Up Button.

Figure 2-5. Speed/Up Button – Range Mode Display

Menu tree

Menu button

Tick Button

Speed/Up button

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Down/Volume Button

The Down/Volume button performs two functions. The button is used to set the volume of the audio

alerts sound level when the unit is in Speed or Range mode and to navigate between options when in

Menu mode. There are five sound levels, from minimum to maximum, plus one setting with no sound

(1-2-3-4-5 and OFF). With each press of the volume button, the volume will increase one increment.

Once the volume has reached level 5, the next press of the volume button will turn the volume

completely Off. Another press of the volume button will advance to volume setting one. Each

increment is indicated by three lines on the display. Zero lines indicate OFF, three lines indicate one.

In the following figure, the six lines on the display indicate that the volume is currently set to setting two.

Figure 2-6. Volume Menu (Setting 2 Shown)

Displays and Indicators

Rear Display

The unit’s primary display is an OLED located on the back panel of the unit. The display is called the

Rear Display in the remainder of this manual. In addition to speed and range data, the Rear Display

provides set-up menus, user alerts, and self-test status. All user set-up menus and alerts are

communicated via the Rear Display in text format.

Head-up Display (HUD)

The HUD performs two critical functions in the operation of the ProLaser 4.

First, it provides the aiming reticle by which the instrument is aimed at the desired target.

Secondly, it displays the current speed and range of the target as the user continues to observe the

target, creating a tracking history.

The aiming reticle approximates to the laser beam spot size. The aiming reticle is located in the centre

of the HUD reflecting glass and defines the area where the laser beam hits the target vehicle. The

reticle is always illuminated provided the PL4 has not gone into sleep mode. The brightness can be

adjusted along with the brightness of the HUD, by using the Weather Button.

Please note: The operator can choose one of four different reticle styles, namely :-

dotted circle (factory default), dot (.) cross hairs (+) and X

Please note: The operator can also choose one of three different information modes in the HUD.

Speed only, Speed + Range and Range only.

Figure 2-7. Aiming Reticle (cross hairs style)

Down/volume button

Lines indicate setting

(three (3) lines per

increment)

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Speed Mode: When the trigger is pulled, the HUD shows the reticle and dashes. The dashes

indicate that a speed is being acquired. Once a valid speed occurs, the dashes disappear and the

reticle and speed are displayed. The user may select the Range to be displayed as well, via the

ProLaser 4 menu system. See Chapter 3. Dashes only appear initially if the trigger is pulled.

Figure 2.8: Reticle and dashes Figure 2.8a: Speed shown (after valid acquisition)

Speed plus Range Mode:

Figure 2.9: Speed and Range in HUD

Range Mode: When the trigger is pulled, the HUD displays the reticle and dashes, then a range is

shown once a valid distance is measured. Dashes only appear initially if the trigger is pulled.

Figure 2-9. Reticle and dashes Figure 2.9a: Reticle and range

After the trigger is released, the HUD remains on for 15 seconds and then dims to save power.

Lock Mode

The ProLaser 4 flashes the Lock Mode icon on the rear display when the unit is in Lock Mode.

Pressing the Tick Button after releasing the trigger locks the current range and speed readings on the

rear display. Pressing the Tick Button a second time unlocks the unit and turns the icon off.

Figure 2-10. Lock Mode Icon

Voltage Level and Shutdown

The ProLaser 4 displays the following Battery Icons to indicate the condition of the unit’s batteries:

The batteries are full. This icon displays in the lower right

corner of the rear display.

As the battery voltage goes down, the symbol changes.

As the batteries get weaker, the symbol changes to this

icon. This indicates the batteries need to be replaced

soon. Unit is still functional.

Figure 2-11: Battery Indications

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

The ProLaser 4 clears the rear display and displays the message “Replace Batteries” when the battery

voltage is too low to run the unit properly.

When this message is first shown, the unit sounds an audio alert for two seconds. The unit is

inoperable in this condition. This message displays for two minutes, then the unit will power down.

Figure 2-12. "Replace Batteries" Warning Message

Set-up

Two factors should be considered when setting up to use the ProLaser 4. They are (1) the location of

the instrument relative to the road, and (2) the actual setup in or around the patrol car.

In selecting a location for monitoring traffic, be aware that the ProLaser 4 is subject to the Cosine effect

in the same manner as conventional microwave radar and other laser-based speed measuring

systems. The Cosine effect is a principle which states that the apparent measured speed of a target

will be decreased from its actual speed depending upon the angle between the direction of observation

and the true direction of travel.

The amount of error is defined by a trigonometric relationship known as the cosine. From a judicial

standpoint, the measurement inaccuracy introduced by the Cosine effect is always in favour of the

motorist, since it has the effect of reducing the measured speed. The greater the angle between the

ProLaser 4 and the direction of traffic, the greater the Cosine error produced. For small angles, the

Cosine effect is relatively insignificant. For examples, at angles of less than 8°, the Cosine error is

under 1%, and at angles of less than 14°, the error is under 3%. As a general guideline, if a location is

selected where the distance to the target vehicle is at least ten times greater than the ProLaser 4's

perpendicular distance from the roadway, this corresponds to an angle of 5.7° or less, and the amount

of Cosine error will not exceed 0.5%. For example, setting up 10 meters off the roadway and

measuring targets at a range of 200 meters or greater, assures the cosine effect produces no more

than 0.5% error in the speed measurement. Again, it is important to remember that any cosine error

introduced always reduces the indicated speed reading, thus favouring the motorist.

Another factor in selecting a setup location is that a clear line of sight to the target vehicle during the

entire measurement interval is critical. Intervening objects such as signposts, utility poles, and tree

branches prevent the instrument from gathering sufficient valid measurement data to display a speed-

reading. It is also better to select a setup location where minimum movement of the ProLaser 4 is

required in order to keep it aimed on the desired target.

Visibility conditions also affect the performance of the ProLaser 4. Although the laser emissions used

by the device are not in the visible spectrum, they are close enough in wavelength that atmospheric or

climatic conditions that impair vision also adversely affect the operation. This impact is mitigated to

some degree due to the new “poor” weather-operating feature available on ProLaser 4. However, rain,

smoke, fog, and airborne dust particles, if sufficiently dense, may prevent its operation. The instrument

is not affected by ambient light conditions. The ProLaser 4 should meet or exceed performance

expectations whether operating in bright daylight or in total darkness.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

The narrow beam width of the ProLaser 4 makes precise target identification possible, but it may be

difficult to aim at long ranges if operated handheld. For those situations, using a monopod, tripod, or

shoulder stock to assist in stabilising the instrument is helpful.

Power-on Sequence

Test Messages

Upon power up of the unit, or when the Tick Button is pressed and held for three seconds while in

Speed or Range Mode, the unit will run a self test. This self test consists of the following test

messages:

Programmable Options Test: Checks for corruption of the unit’s configuration memory. When the

Power Button is pressed, the first self test screen displays "Self Test" and a series of dots to indicate

activity, then displays the screen below. The dots do not display when the Tick Button is pressed to

initiate the self test. The following screen indicates a successful Programmable Options Test.

Figure 2-13. Self Test – EEPROM

Accuracy Test: Performs a comparison between two independent timing circuits to verify that

the range and speed determination circuits are operating properly.

Figure 2-14. Self Test – TIMER

Program Memory Test: Shows the unit’s firmware version and checksum.

Figure 2-15. Program Memory Test Result (Sample Shown – Your Information will vary)

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Serial Number Screen: The unit serial number is shown immediately after the firmware version and

checksum.

Figure 2-16. Serial Number Screen

Self Test Complete: Indicates that the Self Test is complete.

Figure 2-17. Test Complete Screen

Mode/Option Selection

Speed and Range Mode

The Speed/Up button is used to toggle between Speed and Range Mode. The default mode is Speed.

Note: It is not necessary to press the Tick Button to confirm (complete mode selection).

Pressing the Speed/Up button erases the “Speed” text, leaving only the “Range” text displayed. The

unit is now in the range-only mode. This also changes the display in the HUD from Speed to Range.

This button is used to navigate between option settings as described in the “Menu Mode” section. To

return to the Speed Mode, press the Speed/Up Button again. Both Speed and Range display again on

the Rear Display, and the HUD displays speed measurements.

Audio Volume

The audible tone provides feedback to assist the user in aiming the ProLaser 4. The Aiming Tone is

activated when the trigger is pulled and a staccato or chirping tone is heard when no valid target is in

range, such as aiming the unit at the sky. As the quality of range data from a target improves, the

“chirp rate” increases, indicating proper aiming of the ProLaser 4. When a range or speed is actually

displayed, the chirping simultaneously changes to a solid tone.

The audio transducer is also used to alert the user to certain conditions such as an internal test failure,

existence of low battery voltage or confirmation the unit is powering down.

The audible alert volume is adjusted using the Volume Button in the same manner as Rear Display or

HUD brightness. Five (5) sound levels from minimum to maximum are available. Pressing the Volume

Button six times cycles through all the settings (1-2-3-4-5 and OFF). Press again to go to setting (1).

Each increment is indicated by three lines on the display. Zero lines indicate off, three lines indicate

(1). In the following figure, the six lines on the display indicate that the current setting is (2).

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Figure 2-18. Volume Screen

Inclement Weather Feature

The Inclement Weather feature is used to improve the unit’s sensitivity and performance in adverse

weather conditions. Fog, rain, snow and heavy dust can sometimes interfere with the performance of

the ProLaser 4 or any other laser speed gun. Target ranges less than anticipated may be displayed,

typically between 15 and 60 meters. An inability for the unit to lock a valid speed is a symptom of this

problem in Speed Mode. Inclement Weather Mode improves the system performance by setting the

minimum range to 60 meters. This dramatically improves both the Speed and Range performance of

the unit in poor weather conditions. Note that no Speed or Range readings are possible inside the

minimum range while in the Inclement Weather Mode.

Figure 2-19. Inclement Weather Indication

When in the Speed or Range mode, the user can set the Inclement Weather feature by pressing and

holding the Weather Button for three seconds. Repeat this to turn this feature off.

When in any of the Menu modes shown in Figure 3-1, press the Weather Button once to set the unit’s

Inclement Weather feature. The weather icon displays on the rear display as shown above whenever

the unit is set for inclement weather.

Operating Procedures

Speed Mode

After completing the range and HUD tests, the ProLaser 4 is now ready to make range and speed

measurements.

Enforcement Limit Mode

The Enforcement Limit Mode of the ProLaser 4 is used to set a minimum enforcement speed. In other

words, the ProLaser 4 will only record the target vehicle’s speed if the speed of the vehicle is above the

Enforcement Limit setting. By default this is 20mph. Each time you restart ProLaser 4 it will revert

back to this default value. Please refer to the section "ProLaser 4 Modes of OPeration" for full details of

how to get the most out of this useful feature. If you would like Truvelo to permanently alter the default

to a higher value, such as 90mph please contact us.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Figure 2-20. Enforcement Limit Speed Setting

When a vehicle is targeted that is exceeding the Enforcement Limit setting, the rear display will be

locked (indicated by Lock Mode icon) and the count up timer will start. Locked speed will be added to

the internal log file.

Figure 2-21. Locked Screen After Capture

The user will not be able to take another speed reading until they unlock the rear display by pressing

the tick button. Once the display is unlocked, there will be a three second delay before the laser will be

able to fire again.

If the targeted vehicle’s speed is equal to or lower than the Enforcement Limit setting, the Rear Display

will show the range to the vehicle, as well as the speed. It will not, however, lock the display (no Lock

Mode Icon) or start the timer.

Using the ProLaser 4

The ProLaser 4 should be oriented as close to parallel to the traffic flow as the setup location will

permit. Aim the ProLaser 4 at the desired target, and pull the trigger. Four dashes "----" will

immediately be displayed in the HUD directly above the aiming reticle, indicating that the laser pulses

are being transmitted and the range and speed processing circuits are operating. If the Aiming Tone is

enabled, an intermittent tone sounds when the instrument is beginning to receive sufficient reflected

laser pulses to accurately process speed readings. When the instrument is squarely aimed at a moving

target and is processing valid speed data, the tone becomes constant. At this point the target speed

appears on the HUD in place of the dashes, and on the Rear Panel under the “Speed” text. On the

HUD, the speed indication is preceded by a "-" sign if the target is receding, and by a "+" sign if the

target is approaching. On the Rear Panel, the speed indication is preceded by an “up” arrow if the

target is receding, and by a “down” arrow if the target is approaching.

As long as the trigger is pulled, the ProLaser 4 continues to update the displayed target speed with the

most recently determined value. This procedure enables the user to correlate the displayed target

speed with visual observations of the target vehicle, thus establishing the tracking history needed for

introduction of the evidence into court. If the target aiming point is moved or lost during tracking, the

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

ProLaser 4 notifies the user by rapidly flashing the speed and range. This occurs for two seconds, and

then the display blanks, unless the aiming target is re-acquired and tracking can continue.

While the speed reading is still being displayed, releasing the trigger locks the speed and range

readings on the displays.

Range Mode

When the ProLaser 4 is first powered up, the HUD is programmed to display target speeds. For

applications in which the user is primarily interested in range information, the ProLaser 4 can be set to

display the target range in the HUD by pressing the Speed/Up button to switch to Range mode. The

Speed text disappears from the rear display and only Range displays. The ProLaser 4 is now ready to

make range measurements.

Holding the ProLaser 4 as stationary as possible, use the aiming reticle to aim the instrument at the

desired target, then pull and hold the trigger. A series of four dashes "----" will be displayed directly

above the aiming reticle while the laser is firing and range measurements are being made. After

approximately 0.3 seconds, the distance to the target appears both in the HUD and under the Range

text in the rear display. Distances are displayed to the nearest 0.1 meter in the HUD and the rear

display. Simply aim and pull the trigger again to make additional range measurements.

Since the infrared pulses used by the ProLaser 4 are close to the visible spectrum, the user will find the

target objects that best reflect light also provide maximum range from the instrument. If the user

experiences trouble getting a range reading to a certain part of a distant object, try a different, flatter

surface of the object that may have superior reflective characteristics.

If the instrument is aimed at a fairly large, distant object, and then "panned" or swept across the surface

of the structure, the intermittent aiming tone may be heard by the user. This tone occurs because the

ProLaser 4 is attempting to interpret a series of changing range measurements as a velocity. Normally,

no range reading is displayed because this erratic motion does not fulfil the accuracy criteria of the

range determination process.

Keep in mind that when making range measurements, the instrument does not measure distances

shorter than 3 metres.

ProLaser 4 External Connections

The ProLaser 4 is equipped with two USB ports, Type A and Type B. The USB ports are located on the

right side of the handle, at the top, just under the body of the ProLaser 4. The USB ports are hidden

behind a flexible rubber cover that hinges at the front. There is a tab that allows the user to easily open

the cover. When opened, the user will notice that the centre of each USB port is bright orange. This

indicates that that these are high-retention connectors. It will take more effort to connect and

disconnect a USB cable to these ports than would be required in a typical USB port.

The Type-A port is on the right and the Type-B port is on the left, closest to the display. The Type A

USB port is not used at this time. The purpose of the Type B USB port is to physically connect the

ProLaser 4 to a Windows PC.

Please note that the laser is disabled when the ProLaser 4 is connected to a PC with a USB cable.

Disconnect the USB cable before using ProLaser 4.

USB Device Port (Type B)

The Type-B USB port provides a means to connect the ProLaser 4 to a Windows PC. Please refer to

Appendix 2 for instructions on downloading the Events Log. The available customer control commands

when connected to an external computer are shown in the table below. The USB port must not be

used to connect to an external power source.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Command

Description

Download

Download settings.

EraseEvents

Clear all events in the event tables

Events=x

Send the latest (x) events, x=1 thru 1000

Figure 2-22. ProLaser 4 Command Structure for use with external computer

Stored Offence Data- Events Log

The ProLaser 4 captures time, date, speed and range information for each locked target. Targets

which do not lock, or which are manually locked, are not captured in the Events Log. This data is

stored in the Events Log memory and can be accessed via the USB port. 1000 records can be held in

memory. See Appendix 1 for an example.

Battery LOW

When the battery power becomes too low for operation, the "Replace Batteries" message will appear

on the rear display. Open the battery compartment door and replace the four AA batteries.

Power Conservation Features

The programming of the ProLaser 4 includes two features to help conserve power:

 Sleep mode

 Automatic “Power Off”

Sleep Mode

The ProLaser 4 will automatically initiate Sleep Mode if there is no activity detected for approximately

two minutes. The display blanks, and the message "Sleeping" blinks on the display. To restore the unit

to normal operation, press any of the control buttons.

A locked speed or range will return to the display when the user re-activates the unit by pressing one of

the control buttons.

Automatic Power Off

The ProLaser 4 will automatically initiate a power down if there is no activity detected for approximately

15 minutes. An audio chirp sounds to alert the user that the unit is powering down.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Chapter 3: Using the ProLaser 4 Menu System

General Description

This chapter provides a detailed description of the menu system of the ProLaser 4.

Menu Mode

Menu mode provides access to additional set-up and operating features of the ProLaser 4. Enter this

mode after the unit has been powered up and has completed a self test. Pressing the menu button

enables the user to refine the set-up for a particular situation.

The following is a brief description of each of the functions that may be customized using the Menu set-

up screens. Press the menu button to enter the Menu set-up mode. The functions are described in the

order they occur on the menu tree from top to bottom (1-6). The functions may be accessed forwards

or backwards in the sequence using the down and up buttons as shown in the following figure. After

scrolling to the bottom of the menu tree, another press of the down button will navigate back to the top

or first menu screen. From the top of the menu, a press of the Up Button will navigate to the bottom or

last menu screen.

Figure 3-1. Menu Layout

A single press of the Menu Button will result in the following screen being displayed.

ProLaser 4 UK Operator’s Manual Ver 1.3 Feb16

Distance

The Distance function sets the minimum and maximum ranges at which the target vehicle

speeds are displayed.

Figure 3-2. Distance Menu

If a measurement is taken outside of this zone, no speed is displayed. Press the tick button to display

the Set Range Screen.

Figure 3-3. Set Range Screen

Use the Up or Down Buttons to toggle between the maximum (Max) and minimum (Min) range options.

Brackets and text size indicate the selected option. Press the tick button to access the Set Max Range

or Set Min Range menu screens.

Set Max Range / Set Min Range

Figure 3-4. Set Max Range Screen

Use the Up or Down buttons to change the maximum range distance setting to the desired distance.

750 metres is the default setting. The distance changes in one metre increments, but you can also

press and hold either buttton for a faster adjustment. When the desired maximum distance setting is

achieved, press the tick button to save the setting and return to the Distance menu function screen.

The Set Min Range distance is set in the same manner. The minimum range default is 3 metres.

The Min or Max Range value can be set by using the ProLaser 4 to range to a target. At the Set Max

Range display, aim the unit at a stationary target and pull the trigger until a range is displayed. The

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Truvelo ProLaser 4 User manual

Brand: Truvelo

Model: ProLaser 4

Type: User manual

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Truvelo ProLaser 4 User manual

Truvelo ProLaser 4 User manual

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