Hanna Instruments HI 92840 User manual

These Instruments are in Compliance with the CE Directives

Instruction Manual

HI 92710 / HI 92740

HI 92810 / HI 92840

Portable Microprocessor

Printing and Logging

Thermometers

Dear Customer,

Thank you for choosing a Hanna Instruments

Product.

Please read this instruction manual carefully

before using the instrument.

This manual will provide you with all the neces-

sary information for the correct use of the

instrument, as well as a more precise idea of its

versatility in a wide range of applications.

These instruments are in compliance with the

directives.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

Preliminary Examination............................. 1

General Description .................................... 1

LCD Display Functional Description ........... 2

Functional Description HI 92710

and HI 92740 .............................................. 3

Functional Description HI 92810

and HI 92840 .............................................. 4

Specifications ............................................. 5

Initial Preparation........................................ 6

Operational Guide....................................... 8

Printing / Recording with HI 92710

and HI 92740 ............................................ 13

Printing / Logging with HI 92810

and HI 92840 ............................................ 15

Data Transfer to PC.................................. 27

Fault Functions ........................................ 28

Memory Organization ............................... 29

Printer Maintenance.................................. 30

Battery Replacement ................................ 32

Calibration................................................. 34

Temperature Probes.................................. 35

Un-Housed NTC Sensors ......................... 37

Accessories .............................................. 39

Warranty ................................................... 40

CE Declaration of Conformity ................... 41

ISO 9000 Certified

Company since 1992

1

PRELIMINARY EXAMINATION

Remove the instrument from the packing ma-

terial and examine it carefully to make sure

that no damage has occurred during ship-

ping. If there is any damage, notify your

Dealer.

In addition to this instruction manual you will

also find:

•Printing Thermometer

•HI 762BL Temperature Probe (one chan-

nel version only)

•Paper Rolls (5 pcs)

•AA size Batteries (4 pcs)

•Rugged Carrying Case

Note: Save all packing material until you are

sure that the instrument functions cor-

rectly. All defective items must be re-

turned in its original packaging together

with the supplied accessories.

The Hanna Instruments portable thermom-

eters with built-in printers are microproces-

sor-based and enable you to accurately mea-

sure temperature and record data.

The instrument housing is made of rugged

and lightweight material.

Equipped with a large, easy-to-read LCD, the

units feature an extended battery life and a

special design that enables results to be

obtained even in humid, wet or dusty condi-

tions.

Measurements can be performed with lab-

grade precision in the field as well as in the

laboratory without compromising accuracy. A

12VDC adapter can also be used to power

the unit for extended use.

GENERAL DESCRIPTION

2

HI92810 and HI92840 have a capacity of

16,000 individual temperature readings with

recording intervals selected by the user.

Using the HI9200 infrared transmitter, all the

recorded data can be fed to a PC for easy

reproduction, storage or elaboration without

the interference of cables and cords between

the meter and the receiver.

Other features include: on-board clock and

date, user-selectable recording/logging inter-

vals, automatic memorization of measured

values (HI92810 and HI92840 only), use of

pre-calibrated completely interchangeable

probes, printing on plain paper, automatic

shut-off capability, low battery warning and 2

year warranty.

Two versions are available:

HI 92710C, HI 92740C, HI 92810C and

HI 92840C perform temperature readings in

degrees Centigrade;

HI 92710F, HI 92740F, HI 92810F and

HI 92840F perform temperature readings in

degrees Fahrenheit.

LOG INTV LO BAT

TIME

DATE

°C

1

2

LCD DISPLAY FUNCTIONAL DESCRIPTION

1) Primary Display

2) Secondary Display

3

FUNCTIONAL DESCRIPTION

HI92710 AND HI92740

1) Temperature Probe Connectors

2) Power adapter plug

3) LCD Display

4) PAPER key, to pull the paper

5) ON/OFF key, to turn the meter on or off

6) INTV key, to select the printing interval

7) 0.1/1 key, to select the resolution

8) UP key, to set up printing interval and to select

channel # (for HI92740 only)

9) DOWN key, to set up printing interval and to select

channel # (for HI92740 only)

10) PRINT key, to obtain a printout (printing accumula-

tive time and temperature)

11) LOG key, to enter and exit the recording mode

HI 92740C

ON/OFF PAPER

INTV

instrum nts

e

UP

PRINT

DOWN

0.1/1 LOG

3

4

5

6

7

8

9

10

11

MICROPROCESSOR

PRINTING THERMOMETER

RANGE

-50.0 . . . +150.0°C

1

2

°C

4

FUNCTIONAL DESCRIPTION

HI 92810 AND HI 92840

1) Temperature Probe Connectors

2) Power adapter plug

3) LCD Display

4) PAPER key, to pull the paper

5) PRINT key, to obtain a printout (printing present time

and temperature)

6) ALT key, alternate function key

7) TEMP key, to read temperature and to reactivate the

meter when in stand-by

8) UP key, to set up date, time, printing interval and to

select channel # (for HI92840 only)

9) DOWN key, to set up date, time, printing interval and

to select channel # (for HI92840 only)

10) TIME key, to display present time and printing

interval

11) LOG key, to enter and exit the logging and recording

mode.

HI 92840C

PRINT

PAPER

ALT

instrum nts

e

UP

TIME

DOWN

TEMP LOG

3

4

5

6

7

8

9

10

11

MICROPROCESSOR

LOGGING THERMOMETER

RANGE

-50.0 . . . +150.0°C

1

2

°C

5

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

HI92710C/HI92810C HI92710F/HI92810F

HI92740C/HI92840C HI92740F/HI92840F

Range -50.0 to 150.0°C -55.0 to 300.0°F

Resolution 0.1°C0.1°F

Accuracy From -20 to +120°C: From -4 to +248°F:

(@25°C/77°F) ±0.4°C ±0.8°F

Outside: ±0.7°C Outside: ±1.3°F

for one year, excluding probe error

Typical EMC ±0.6°C ±1.2°F

Deviation

Battery 4x1.5V AA size, life of 500 hours

Type/Life with 60' printing interval

Socket for 12VDC adapter

Auto Shut-off After 5 minutes of non-use

Channels HI 92710/HI92810: 1; HI 92740/HI 92840: 4

Printer Low-power impact belt type,

14 characters per line using

38 mm plain paper

Printing 1, 2, 5, 10, 15, 30, 60,

Intervals 120 and 180 minutes

Environment 0 to 50 °C (32 to 122°F)

Max. 95% RH

Dimensions 220x82x66mm (8.7x3.2x2.6")

Shipping Instrument: 500g (18 oz.)

Weight Kit: 1.4 kg (3.1 lb.)

6

INITIAL PREPARATIONINITIAL PREPARATION

INITIAL PREPARATION

Each meter is supplied complete with batter-

ies. Remove the back cover, unwrap the bat-

teries and install them while paying attention

to the polarity.

To prepare the instrument for use, connect

the temperature probe to the connector lo-

cated on the top of the instrument.

To switch the HI 92710 and the HI 92740

"ON", press the ON/OFF key.

To switch the HI 92810 and the HI 92840

"ON" press the TEMP key.

Choose the most appropriate temperature

probe(s) for your application (see page 35)

and connect it (them) to the meter.

All the probes have been precalibrated at the

factory and no calibration is needed.

HI 92710 and HI 92810 have a single probe

connector.

HI 92740 and HI 92840 have four probe con-

nectors.

With the meter facing you, channel #1 is the

first connector on the top left hand side.

TEMP

ON/OFF

7

If the temperature probe or a calibration test

plugs is not connected to the channel input,

the meter will display and print "----" to alert

the user.

This also indicates the possibility of a broken

probe cable. The channel is displayed with

"CH" and the number of channel (four chan-

nels versions only).

Note: To ensure accurate readings it is rec-

ommended that the temperature probes

be connected to consecutive channels

beginning with channel #1. For ex-

ample, if only one probe is to be used,

it must be connected to channel #1. If

2, 3 or 4 probes are to be used, they

must be connected to channels 1, 2,

3, and 4 in ascending order.

To maximize battery life, the display is auto-

matically switched off after 5 minutes of non-

use. However, the meter will continue to monitor

temperature (if in the logging mode) .

CH

°C

8

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

SETTING THE PRINTING INTERVAL (for

HI92710 and HI92740 only)

Turn the instrument on by

pressing the ON/OFF key.

Press the INTV and the UP or DOWN keys

simultaneously.

The display will show the

log number. At the bottom

of the display the printing

interval will be flashing.

Keep the INTV key pressed and set the print-

ing interval by pressing the UP or DOWN

key. Select between 1, 2, 5, 10, 15, 30, 60,

120 and 180 minutes.

SETTING THE MEASUREMENT RESOLU-

TION (for HI92710 and HI92740 only)

Press the 0.1/1 key to select the 0.1° or 1°

resolution.

With four channels versions, all four channels

readings automatically change by pressing

this key.

To return the reading to the previous resolu-

tion, simply press the 0.1/1 key.

ON/OFF

CH

°C

0.1/1

DOWN

INTV

UP

OR

INTV

9

SETTING DATE / TIME / PRINTING INTER-

VAL (for HI92810 and HI92840 only)

Press the ALT and the TIME keys simulta-

neously. The display will show the date set-

ting. At the bottom of the display the year

will be blinking.

Use the UP or the DOWN arrow keys to

select the year.

When the correct year is selected, press the

TIME key once. The left digit of the display

blinks, showing the month.

Select the month by using the UP or the

DOWN arrow keys.

DATE

UP

TIME

ALT

TEMP

DOWN

UP

TIME

DATE

DOWN

UP

10

Press the TIME key, the right hand side of

the display shows the day.

Use the UP or the DOWN arrow key to

select the correct day.

Press the ALT and the TIME keys simulta-

neously and the display will now show the

clock time with the printing interval blinking.

Any interval can be selected from 1, 2, 5, 10,

15, 30, 60, 120 or 180 minutes by using the

UP and the DOWN arrow keys.

Once the desired interval is selected press

the TIME key once to set it, the left digits of

the display will start blinking.

TIME

DATE

DOWN

UP

INTV

TIME

UP

TIME

ALT

TEMP

DOWN

UP

11

INTV

TIME

To select the hour, press the UP or the

DOWN arrow keys (24 hour clock).

To set the hour press the TIME key once, the

minutes start blinking.

Use the UP or the DOWN keys to select the

minutes.

Press the ALT and the TIME keys to leave

this mode.

The time, date and printing interval are now

set and stored in the memory even when the

display is switched off.

UP DOWN

TIME

UP

DOWN

UP

TIME

ALT

TEMP

12

INTV

TIME

TO VIEW DATE / TIME / TEMPERATURE

(for HI 92810 and HI 92840 only)

To view the time press the TIME key. This

also displays the selected interval time on

the secondary LCD.

To view the date, press the UP key when the

LCD is displaying time.

To view temperature press TEMP key.

Using UP or DOWN keys select which chan-

nel to monitor (four channels versions only).

If "----" is displayed, it indicates that the

temperature probe or calibration test plug are

not connected.

This also indicates the possibility of a broken

probe cable. The channel is displayed with

"CH" and the number of channel (four chan-

nels versions only).

TIME

TEMP

CH

°C

CHANNEL

DOWN

UP

CH

°C

DATE

UP

13

PRINTING / RECORDINGPRINTING / RECORDING

PRINTING / RECORDING

WITH HI 92710 AND HI 92740WITH HI 92710 AND HI 92740

WITH HI 92710 AND HI 92740

To print the measured values

press the PRINT key. The

printout provides the following

information:

a- Running sample number

b- The total accumulative

time

c - Temperature value.

d- Channel number (HI92740 only)

RECORDING MODE (PROGRAMMED

PRINTOUTS)

Press the LOG key to enter

the recording mode. The log

number and page number will

appear for a few seconds on

the display to indicate the

correct operational mode. The

meter will write the first mea-

surement taken in that mo-

ment, and will print at the

interval selected thereafter

until the ON/OFF key is

pressed.

The printout provides the following informa-

tion:

a- A running log number

b- A running sample num-

ber (in that particular log)

c - Printing interval indicator in minutes

d- The accumulated time since printing started

(HH.MM)

e- Temperature value

f - Channel number (HI92740 only).

In HI92740 only, if less then 4 probes are

plugged in during recording mode, the meter

will print only the values of the probes con-

nected.

PRINT

0001 *10.25

#1 20.0 °C.

#2 85.5 °C

#3 ---- °C.

#4 ---- °C.

.

ab

c

d

LOG INTV

ON/OFF

LOG

==07== 0005M

0014 *01.05

#1 25.0 °C

#2 27.3 °C.

.

a

b

f

c

d

e

14

If probes are added to the remaining chan-

nels during the recording mode, the data from

the additional probes will not be printed. Data

from remaining channels can only be added if

the recording mode is exited and a new log

number is entered.

A blinking "CH" will appear

on the display next to the

channel numbers not being

utilized and/or recorded.

If more than one channel is being monitored,

the printer will automatically print the tem-

perature of all the connected channels.

When the meter is in record-

ing mode "LOG" is displayed

on the bottom left corner of

the LCD with the tempera-

ture value on the primary dis-

play.

If no keys are pressed, the meter goes to

standby mode to prolong the battery life.

Notes:

•If the PRINT key is

pressed while still in re-

cording mode, a printout

is produced without affect-

ing the running number.

•Once in recording mode, the printing inter-

val cannot be changed. Exit the recording

mode first (pressing the ON/OFF key) be-

fore setting the new interval.

TO STOP RECORDING

In order to quit the recording

mode, press the ON/OFF

key. This will generate a re-

cording exit status printout.

ON/OFF

CH

°C

LOG

CH

°C

LOG

PRINT

15

PRINTING / LOGGINGPRINTING / LOGGING

PRINTING / LOGGING

WITH HI 92810 AND HI 92840WITH HI 92810 AND HI 92840

WITH HI 92810 AND HI 92840

To print the measured values

shown on the display, press

the PRINT key. This function

can be activated in normal

operation mode as well as

during logging and scanning data on display

(see above). When in measurement mode, the

printout provides the following information:

a - Running sample number

b - Date

c -Time

d - Temperature value(s)

e- Channel numbers (HI92840 only)

LOGGING MODE

This function is suggested when remote mea-

surements have to be taken automatically

without the necessity of an operator and for a

long period of time. In this mode data will be

stored directly into memory.

Set the appropriate logging interval (see Op-

erational Guide section on page 8).

Press the ALT and the LOG keys simulta-

neously to enter the logging mode. The log

number and page number will appear for a

few seconds on the display to indicate the

correct operational mode.

The printer will print a com-

plete set of data and the

"LOG" symbol will appear on

the bottom left corner of the

LCD.

PRINT

10-01-96

0001 *10.24

#1 20.0

#2 45.4

#3 -----

#4 -----

.

ab

c

d

°C

e

UP DOWN

TIME LOG

ALT

TEMP

LOG

Log number

Page number

CH

°C

LOG

16

CH

°C

LOG

To continue logging without printing, press

now the ALT and the PAPER keys at the

same time and the "LOG" symbol on display

will start to blink.

After approximately 5 minutes the display will

switch off but the logging function remains

active.

To reactivate the display

press the TEMP key.

If you wish to re-start printing press the ALT

and PAPER keys simultaneously again.

The printout provides the following informa-

tion:

a- Date (DD-MM-YY)

b- A running log number

c - Printing interval indicator in minutes

d- Time (HH-MM)

e- Temperature value(s)

f - Running sample number (in that particular

log)

Notes:

•Once in the logging mode,

the interval cannot be

changed. Exit the logging

mode first (pressing the

ALT and the LOG keys) before setting the

new interval.

•If the PRINT key is

pressed while in logging

mode, a printout is pro-

duced without affecting the

running sample number.

UP

PAPER

ALT

PRINT

UP DOWN

TIME LOG

ALT

TEMP

PRINT

TEMP

10-01-96

==07== 0005M

0001 *14.25

#1 25.0 °C

#2 27.3 °C.

.

b

fc

a

d

e

17

SAMPLE NUMBER

During logging it is possible

to know the running sample

number. Press the LOG key

twice and the display will

show the number of values

that have been taken in the

current log.

LOGGING MODE WITH PRINTING

This function is suggested when an immedi-

ate report of the measurement is required in

addition to the recording of the data into

memory.

Press the ALT and the LOG

key simultaneously to enter

the logging mode. The log

number and page number will

appear for a few seconds on

the display to indicate the

correct operational mode. The

printer will print a complete

set of data and the "LOG"

symbol will appear on the bot-

tom left corner of the display.

If no key is pressed, the dis-

play goes blank after about 5 minutes. During

printing, the display shows the time, interval

and the “LOG” symbol.

LOG

UP DOWN

TIME LOG

ALT

TEMP

LOG INTV

TIME

18

CH

°C

LOG

To reactivate the display

press the TEMP key.

The printout provides the following informa-

tion:

a- Date (DD-MM-YY)

b- A running log number

c - A running sample number

(in that particular log)

d- Printing interval indicator in

minutes

e- Time (HH-MM)

f - Temperature value(s)

It is always possible to switch from the log-

ging with printing function to the logging only

function. Press the ALT and the PAPER keys

at the same time and the "LOG" symbol will

start to blink to indicate that the data are now

stored only into memory.

Notes:

•It is recommended to use the adapter

during logging with printing mode, espe-

cially when many printout are going to be

taken.

•Before proceeding with logging with print-

ing, make sure there is enough paper for

your measurements. When the paper is

finished the meter will not advise the op-

erator and the printouts could be lost. If

this happens, data will continue to be

stored into memory, and it is always pos-

sible to print them at different time (see

page 22).

10-01-96

==07== 0005M

0014 *14.25

#1 25.0 °C

#2 27.3 °C.

.

b

cd

a

e

f

UP

PAPER

ALT

PRINT

TEMP

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