Hanna Instruments HI 9271 User manual

Instruction Manual

HI 9171 – HI 9174

HI 9181 – HI 9184

HI 9271 – HI 9274

Portable Microprocessor

Printing and Logging

Thermometers

Foodcare

PRT

PAPER

ALT

TIME

TEMP

LOG

PRINTING

AND LOGGING

THERMOMETER

Foodcare

56

43

210

http://www.hannainst.com These Instruments are in

Compliance with the CE Directives

2

Dear Customer,

Thank you for choosing a Hanna Product.

Please read this instruction manual carefully before using the instru-

ment. This manual will provide you with the necessary information for

a correct use of the instrument, as well as a precise idea of its

versatility. If you need more technical information, do not hesitate to

e-mail us at [email protected].

These instruments are in compliance with directives

EN 50081-1 and 50082-1.

ISO 9000 Certified

Company since 1992

PRELIMINARY EXAMINATION......................................................... 3

GENERAL DESCRIPTION ................................................................ 3

LCD DISPLAY FUNCTIONAL DESCRIPTION ....................................... 4

FUNCTIONAL DESCRIPTION HI 9171 & HI 9174............................ 5

FUNCTIONAL DESCRIPTION HI 9181 & HI 9184............................6

FUNCTIONAL DESCRIPTION HI 9271C/F & HI 9274C/F .................. 7

SPECIFICATIONS HI 9271 & HI 9274 ........................................... 8

OPERATIONAL GUIDE ................................................................... 9

PRINTING/RECORDING WITH HI 9171 & HI 9174 ....................... 15

PRINTING/RECORDING WITH HI 9271 & HI 9274 ....................... 18

PRINTING/LOGGING WITH HI 9181 & HI 9184 ...........................20

DATA TRANSFER TO PC............................................................... 30

SELF-DIAGNOSTIC FUNCTIONS .................................................... 31

MEMORY ORGANIZATION ............................................................ 31

PRINTER MAINTENANCE ............................................................. 32

BATTERY REPLACEMENT.............................................................. 34

CALIBRATION ............................................................................. 35

TEMPERATURE PROBES ..............................................................36

UN-HOUSED NTC SENSORS ........................................................ 38

ACCESSORIES ............................................................................40

WARRANTY ................................................................................ 41

CE DECLARATION OF CONFORMITY .............................................. 43

TABLE OF CONTENTS

3

Remove the instrument from the packing material and examine it

carefully to make sure that no damage has occurred during shipping.

If there is any damage, notify your Dealer or the nearest Hanna

Customer Service Center.

Each Printing Thermometer is supplied with:

• Paper Rolls (5 pcs)

• 1.5V x AA size Batteries (4 pcs)

• Rugged Carrying Case

Note: Save all packing material until you are sure that the instru-

ment functions correctly. All defective items must be returned

in its original packaging together with the supplied accesso-

ries.

PRELIMINARY EXAMINATION

These Hanna portable thermometers with built-in printers are micro-

processor-based to accurately measure temperature and record data.

The instrument housing is made of rugged and lightweight material,

specifically designed for the food industry.

Measurements can be performed with lab-grade precision in the field

without compromising accuracy. A 12VDC adapter can also be used to

power the unit for prolonged use.

Common features include: use of precalibrated and completely inter-

changeable probes, user-selectable printing/logging intervals, printing

on plain paper, automatic shut-off capability, low battery warning,

clock and calendar (HI 9171, HI 9174, HI 9181 and HI 9184),

memorization of logged values (HI 9181 and HI 9184), all opera-

tions password protected (HI 9171, HI 9174, HI 9181 and HI 9184)

and 2 year warranty.

HI 9181 and HI 9184 have a memory capacity of 16,000 individual

temperature readings with selectable recording intervals. Using the

HI 9200 infrared transmitter, all the recorded data can be fed to a PC

for reproduction, storage or elaboration without having to connect and

disconnect cables and cords.

GENERAL DESCRIPTION

4

Different versions are divided into:

HI 9171, HI 9174, HI 9181, HI 9184, HI 9271C and HI 9274C

measuring in degrees Celsius, and HI 9271F and HI 9274F for

Fahrenheit measurements.

LCD DISPLAY

FUNCTIONAL DESCRIPTION

LOG INTV LO BAT

TIME

DATE

°C

1

2

1. Primary Display

2. Secondary Display

5

FUNCTIONAL DESCRIPTION

HI 9171 & HI 9174

3

4

5

6

7

8

9

10

11

1

22

°C

3

4

5

6

7

8

9

10

11

°C

PRT

PAPER

ALT

TIME

TIME TEMP

TEMP RUN

RUN

PRINTING

THERMOMETER

PRINTING

THERMOMETER

Foodcare

5

56

6

4

43

3

2

21

10

0

HI 9171 HI 9174

1. Temperature Probe Connector(s)

2. Socket for External 12VDC Power Supply

3. Liquid Crystal Display

4. PAPER (to move paper up)

5. PRT (to obtain printout of current date, time and temperature)

6. ALT (alternate function key)

7. TEMP (to read temperature and to reactivate meter when in

standby mode)

8.  (to scan data or to set date, time and printing interval, or

to select channel # for HI 9174 only)

9.  (to scan data or to set date, time and printing interval, or

to select channel # for HI 9174 only)

10. TIME (to display time and printing interval)

11. RUN (to enter and exit recording mode)

6

1. Temperature Probe Connector(s)

2. Socket for External 12VDC Power Supply

3. Liquid Crystal Display

4. PAPER (to move the paper up)

5. PRT (to obtain printout of current date, time and temperature)

6. ALT (alternate function key)

7. TEMP (to read temperature and to reactivate meter when in

standby mode)

8.  (to scan data or to set date, time and printing interval, or

to select channel # for HI 9174 only)

9.  (to scan data or to set date, time and printing interval, or

to select channel # for HI 9174 only)

10. TIME (to display time and printing interval)

11. LOG (to enter and exit the logging and printing mode)

FUNCTIONAL DESCRIPTION

HI 9181 & HI 9184

3

4

5

6

7

8

9

10

11

1

22

°C

3

4

5

6

7

8

9

10

11

°C

PRT

PAPER

ALT

TIME

TIME TEMP

TEMP LOG

LOG

PRINTING

AND LOGGING

THERMOMETER

PRINTING

AND LOGGING

THERMOMETER

Foodcare

5

56

6

4

43

3

2

21

10

0

HI 9181 HI 9184

7

1. Temperature Probe Connector(s)

2. Socket for External 12VDC Power Supply

3. Liquid Crystal Display

4. PAPER (to move paper up)

5. ON/OFF (to switch meter on/off or to reactivate meter when

in standby mode)

6. INTV (to select printing interval)

7. 0.1/1 (to select resolution)

8. UP (to set printing interval or to select channel # for

HI 9274 only)

9. DOWN (to set printing interval or to select channel # for

HI 9274 only)

10. PRINT (to obtain printout of sample # and temperature)

11. LOG (to enter and exit recording mode)

FUNCTIONAL DESCRIPTION

HI 9271C/F & HI 9274C/F

instrum nts

e

3

4

5

6

7

8

9

10

11

1

22

°C

instrum nts

e

3

4

5

6

7

8

9

10

11

°C

ON/OFF

PAPER

INTV UP

PRINT

DOWN

0.1/1 LOG

PRINTING

THERMOMETER

-50°C .....+150.0°C

PRINTING

THERMOMETER

-50°C .....+150.0°C

Foodcare

ON/OFF

PAPER

INTV UP

PRINT

DOWN

0.1/1 LOG

Foodcare

HI 9271C HI 9274C

8

SPECIFICATIONS

HI 9171 – HI 9174 HI 9271F

HI 9271C – HI 9274C HI 9274F

HI 9181 – HI 9184

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

Resolution 0.1°C / 1°C 0.1°F / 1°F

Accuracy ±0.4°C ±0.8°F

(@ 20°C/68°F) for one year, excluding probe error

Typical EMC Deviation ±0.4°C ±0.8°F

Power Supply 4x1.5V AA size, max. 500 hours with 60' printing

interval. Socket for 12VDC adapter

Auto Shut-off After 5 minutes of non-use

Channels 1 for HI 9171, HI 9271, HI 9181 and

4 for HI 9174, HI 9274, HI 9184

Printer Low-power impact belt type, 14 characters per line

using 38 mm plain paper

Printing/Logging 1, 2, 5, 10, 15, 30, 60, 120 and 180 minutes

Intervals

Environment 0 to 50 °C (32 to 122°F)

Max. 95% RH non-condensing

Dimensions 220 x 82 x 66 mm (8.7 x 3.2 x 2.6")

Shipping Weight 1.4 kg (3.1 lb.)

9

INITIAL PREPARATION

Each meter is supplied complete with batteries. Remove the back

cover, unwrap the batteries and install them while paying attention to

the polarity (see also page 34).

To switch HI 9171, HI 9174, HI 9181 and HI 9184 on, press TEMP.

To switch HI 9271 and HI 9274 on, press ON/OFF.

If the meter does not switch on check the batteries.

PROBE CONNECTION

Choose the most appropriate temperature probe(s) for your applica-

tion (see page 36) and connect it (them) to the probe connector(s)

located on the top of the instrument. All the probes have been

precalibrated at the factory and no calibration is needed.

HI 9171, HI 9181 and HI 9271 take a single probe while HI 9174,

HI 9184 and HI 9274 can take up to four probes.

With the meter facing you, channel #1 is the first connector on the

top left corner.

If neither a temperature probe nor a calibration test plug is connected

to the instrument, the meter will display "°C ----" to alert the user.

This could also indicate that probe cable is damaged. "CH" and the

channel number are displayed together (HI 9174, HI 9184, HI 9274

only).

TEMP

ON/OFF

CH

°C

OPERATIONAL GUIDE

10

Note: To ensure accuracy, it is recommended that the temperature

probes be connected to consecutive channels beginning with

channel #1. For example, if only one probe is to be used,

connect it to channel #1. If 2, 3 or 4 probes are used, connect

them to channels 1, 2, 3, and 4 in ascending order.

AUTO SHUT-OFF

To maximize battery life the display is auto-

matically switched off after 5 minutes of

non-use. However, the meter will continue to

monitor the temperature if in recording/log-

ging mode.

To revive the display, press any key (except ALT with HI 9171,

HI 9174, HI 9271 and HI 9274).

SETTING DATE, TIME, PRINTING OR LOGGING

INTERVAL (FOR HI 9171, HI 9174, HI 9181

& HI 9184 ONLY)

Turn the instrument on by pressing the TEMP

key.

Press ALT and TIME simultaneously. These instruments have a pass-

word security feature. The default password is 0000. When the meter

is used for the first time, it allows time and date to be set until a

password is entered. If a password has been entered (see page 12)

"----" appears on display and one can only proceed after digiting the

password. Otherwise the display will show the date setting with the

year blinking (shown as the last 2 digits of the year i.e. 95 = 1995).

Use  or  to select the year.

TEMP

ALT TIME

+

DATE

11

When the correct year is selected, press TIME to memorize it. The

month will start blinking.

Similarly set month by  or . Press TIME and the day will start

blinking.

Use  or  to select the correct day.

Press the ALT and the TIME keys simultaneously. The display will

switch to the clock mode, and the printing interval will blink.

Any interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 to 180

minutes by using  or .

Memorize the interval by pressing TIME. The hour will start blinking.

TIME

ALT TIME

+

TIME

12

To select the hour press  or  (24 hour clock) and press TIME

once more to memorize it. The minutes will start blinking.

Use  or  to select the minutes.

Press the ALT and TIME keys simultaneously. The instrument will now

ask for the password and display "0000".

To return to normal operation enter the password or press the ALT and

TIME keys again if the password is not to be changed.

The new date, time and printing interval are now stored in the

memory even when the meter is switched off.

SETTING THE PASSWORD (HI 9171, HI 9181, HI 9174

& HI 9184 ONLY)

The password is represented by a 4 digit number each selectable from

0 to 6.

By pressing the ALT and the TIME keys at the end of the time/date

setting procedure, four zeros appear on the LCD.

If you wish to enter a password, press any of the keys corresponding

to a number. These numbers are printed on the bottom right hand

side of the keys as shown below:

TIME

ALT TIME

+

ALT TIME

+

PRT

PAPER

ALT

TIME

TEMP

LOG

56

43

210

56

43

012

13

If no password is necessary, leave the default password as 0000 by

pressing and holding ALT down and then pressing TIME.

Once a password has been entered, it is automatically stored in

memory. By pressing ALT and TIME simultaneously the display will

switch back to normal operation.

Note: If the password is not known or forgotten, remove the batteries

for two minutes and the password is reset to the default 0000.

ENTERING THE PASSWORD

When the display shows "----" it means that the password has to be

entered. Press the keys corresponding to the password, e.g. for "1256"

press the TIME, TEMP, PRT and PAPER keys in that sequence. If the

wrong key is pressed, once all four digits are filled on the LCD, the

meter will again show "----" so that the entire password can be re-

entered.

VIEWING TEMPERATURE, TIME & DATE (FOR HI 9171,

HI 9174, HI 9181 & HI 9184 ONLY):

To view the date press the  key.

To view the time and the printing interval press TIME.

To view temperature press TEMP.

ALT TIME

+

DATE

TIME

INTV

TIME

TEMP

CH

°C

C

HANNEL

14

Using the  or  keys select channel (HI 9174 and HI 9184

only).

If "°C ----" is displayed, it indicates that the temperature probe or

calibration test plug is not connected. This may also indicate the

possibility of a damaged probe cable. The channel # is displayed

together with "CH" (HI 9174 and HI 9184 only).

SETTING THE PRINTING INTERVAL FOR HI 9271 &

HI 9274 ONLY

Turn the meter on by pressing ON/OFF.

Press the INTV and the UP keys and hold down the INTV key. The

display will show the log number while the printing interval will start

blinking.

Any interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 and

180 minutes by using the UP and DOWN keys.

CH

°C

ON/OFF

INTV

UP

DOWN

15

Release the INTV key to exit this mode.

SETTING THE MEASUREMENT RESOLUTION (HI 9271 &

HI 9274 ONLY)

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

With HI 9274, all four channel readings automatically change by

pressing this key.

To return the reading to its original resolution, simply press the 0.1/1

key again.

INTV

CH

°C

0.1/1

PRINTING/RECORDING

WITH HI 9171 & HI 9174

To print the measured values shown on the

display, press PRT. This function can be acti-

vated in normal operation mode as well as

during recording mode (see below). When in

measurement mode, the printout provides the

following information:

a – Running sample number

b – Date (DD-MM-YY)

c – Time (HH-MM)

d – Temperature value(s)

e – Channel numbers (HI 9174 only)

RECORDING AT AN INTERVAL

Ensure that the appropriate recording interval has been set (see

Operational Guide on page 9).

PRT

16

Press ALT and RUN simultaneously to enter the recording mode.

The log number and the interval time will

appear for a few seconds on the display to

indicate the correct operational mode.

The meter will print the measurements taken in that moment, and

will print at the selected interval thereafter until ALT and RUN are

pressed again. The password is also requested to stop printing (unless

it remained at default 0000).

Each printout provides the following information:

a – Date (DD-MM-YY)

b – Printing interval in minutes

c – Time (HH-MM)

d – Temperature value(s)

e – A running log number

f – Running sample number (in that particular log)

g – Channel number(s)

HI 9174 will print only the values of the probes connected. If probes

are added to the remaining channels during the recording mode, the

data from the additional probes will not be printed. Data from re-

maining channels can only be added if the recording mode is exited

and re-entered. A blinking "CH" will appear on the display next to the

channel numbers not being utilized and/or recorded.

When the meter is in recording mode "LOG"

is displayed on the bottom left corner of the

LCD together with time and the printing in-

terval.

If no keys are pressed, the meter goes to standby mode to prolong the

battery life while the recording function remains active.

To reactivate the display press TEMP.

Notes:

• Once in the recording mode, the printer cannot be stopped unless

the password is entered (unless the password is 0000).

ALT RUN

+

TEMP

17

• The interval cannot be changed during recording mode. Exit the

recording mode first (press ALT and LOG and enter the password)

before setting the new interval.

• If PRT is pressed while in logging mode,

a printout is produced without affecting

the running sample number.

TO STOP RECORDING

Press ALT and LOG simultaneously. If a password has been entered

the printer will require the operator to enter the correct password

whereupon it will generate a log exit status printout.

Note: If the password is unknown or forgotten, remove the batteries

for two minutes to stop printing and reset the password to

0000. Likewise, the running log number can also be reset.

ALT LOG

+

PRT

ALT LOG

+

LOG

18

PRINTING/RECORDING

WITH HI 9271 & HI 9274

PRINT

LOG

To print the measured values press PRINT.

Each printout provides the following informa-

tion:

a – The total accumulative time

b – Temperature value(s)

c – Channel numbers (HI 9274 only)

d – Running sample number

RECORDING AT AN INTERVAL

Ensure that the appropriate recording interval has been set (see

Operational Guide on page 9).

Press the LOG key to enter the recording mode.

The log number and the interval time will

appear for a few seconds on the display to

indicate the correct operational mode.

The meter will print the measurements taken

in that moment, and will print at the selected

interval thereafter until the ON/OFF key is

pressed again.

The printout provides the following informa-

tion:

a – A running log number

b – A running sample number (in

that particular log)

c – Channel numbers (HI 9274 only)

d – Printing interval indicator in minutes

e – The accumulated time since printing started (HH.MM)

f – Temperature value(s)

HI 9274 will print only the values of the

probes connected. If probes are added to the

remaining channels 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 re-entered. A blinking "CH" will

ON/OFF

CH

°C

LOG

19

appear on the display next to the channel numbers not being utilized

and/or recorded.

When the meter is in recording mode "LOG"

is displayed on the bottom left corner of the

LCD together with temperature.

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

recording mode, a printout is produced

without affecting the running number.

• Once in recording mode, the printing in-

terval cannot be changed. Exit the

recording mode first by pressing ON/OFF

and reset the new interval.

TO STOP RECORDING

To quit recording mode, press ON/OFF. This

will generate a recording exit status printout.

CH

°C

LOG

PRINT

ON/OFF

--07-- 0005M

<>0016 *1.15

Log number

Total sample number

Exit printing interval

& accumulative time

20

PRINTING/LOGGING

WITH HI 9181 & HI 9184

To print the measured values shown on the

display, press PRT. This function can be acti-

vated in normal operation as well as during

logging and scanning data on display (see

page 23). When in measurement mode, the

printout provides the following information:

a – Running sample number

b – Date (DD-MM-YY)

c – Time (HH-MM)

d – Temperature value(s)

e – Channel numbers (HI 9184 only)

LOGGING MODE WITHOUT PRINTING

This function is particularly useful when measurements have to be

taken continuously even in the absence of an operator over a long

period of time. In this mode data will be stored directly into memory.

Set the appropriate logging interval (see page 9).

Press the ALT and LOG keys simultaneously to enter the logging

mode. The current log number and remaining page numbers 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 secondary LCD.

To continue logging without printing, press ALT and PAPER at the

same time and the "LOG" symbol on display will start to blink.

HI 9184 will print only the values of the probes connected. If probes

are added to the remaining channels during the recording mode, the

data from the additional probes will not be printed. Data from re-

PRT

ALT LOG

+

ALT PAPER

+

CH

°C

LOG

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