Hanna Instruments HI 9271 User Manual

Instruction Manual

HI 9171 – HI 9174 HI 9181 – HI 9184 HI 9271 – HI 9274

Foodcare

Portable Microprocessor

Printing and Logging

Thermometers

Foodcare

PRT

PAPER

ALT

TEMP

TIME

http://www.hannainst.com

RINTIN

ING

ERM

ETER

LOG

Compliance with the CE Directives

These Instruments are in

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 tech@hannainst.com.

These instruments are in compliance with directives EN 50081-1 and 50082-1.

TABLE OF CONTENTS

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

ISO 9000 Certified Company since 1992

PRELIMINARY EXAMINATION

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 accessories.

GENERAL DESCRIPTION

These Hanna portable thermometers with built-in printers are microprocessor-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 interchangeable 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.

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

°C

LOG INTV

1. Primary Display

2. Secondary Display

DATE TIME

LO BAT

FUNCTIONAL DESCRIPTION

HI 9171 & HI 9174

PAPER

TIME

THERMOMETER

HI 9174

443

PRINTING

RUN

°C

Foodcare

PRT

ALT

TEMP

°C

Foodcare

PRINTING

THERMOMETER

PAPER

HI 9171

RUN

TIME

TEMP

PRT

ALT

556

221

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)

FUNCTIONAL DESCRIPTION

HI 9181 & HI 9184

°C

Foodcare

PRT

ALT

TEMP

°C

Foodcare

PRINTING

AND LOGGING

THERMOMETER

PAPER

HI 9181

LOG

TIME

TEMP

PRT

ALT

556

221

PRINTING AND LOGGING THERMOMETER

PAPER

HI 9184

LOG

TIME

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 9271C/F & HI 9274C/F

instrum nts

PAPER

PRINTING

THERMOMETER

HI 9274C

-50°C .....+150.0°C

DOWN

instrum nts

PAPER

PRINTING

THERMOMETER

HI 9271C

-50°C .....+150.0°C

DOWN

°C

Foodcare

ON/OFF

INTV

0.1/1 LOG

°C

Foodcare

ON/OFF

INTV

0.1/1 LOG

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)

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

Auto Shut-off After 5 minutes of non-use Channels 1 for HI 9171, HI 9271, HI 9181 and

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

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

Environment 0 to 50 °C (32 to 122°F)

Dimensions 220 x 82 x 66 mm (8.7 x 3.2 x 2.6") Shipping Weight 1.4 kg (3.1 lb.)

interval. Socket for 12VDC adapter

4 for HI 9174, HI 9274, HI 9184

using 38 mm plain paper

Max. 95% RH non-condensing

OPERATIONAL GUIDE

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.

TEMP

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

ON/OFF

If the meter does not switch on check the batteries.

PROBE CONNECTION

Choose the most appropriate temperature probe(s) for your application (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.

°C

This could also indicate that probe cable is damaged. "CH" and the channel number are displayed together (HI 9174, HI 9184, HI 9274 only).

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 automatically switched off after 5 minutes of non-use. However, the meter will continue to

TEMP

monitor the temperature if in recording/logging 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

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).

ALT

TIME

DATE

Use  or  to select the year.

When the correct year is selected, press TIME to memorize it. The month will start blinking.

TIME

Similarly set month by  or . Press TIME and the day will start blinking.

TIME

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.

ALT

TIME

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

To select the hour press  or  (24 hour clock) and press TIME once more to memorize it. The minutes will start blinking.

TIME

Use  or  to select the minutes. Press the ALT and TIME keys simultaneously. The instrument will now

ask for the password and display "0000".

ALT

TIME

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.

ALT

TIME

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:

PRT

PAPER

TIME

012

LOG

ALT

TEMP

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.

ALT

TIME

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 reentered.

VIEWING TEMPERATURE, TIME & DATE (FOR HI 9171, HI 9174, HI 9181 & HI 9184 ONLY):

To view the date press the  key.

DATE

To view the time and the printing interval press TIME.

TIME

INTV

TIME

To view temperature press TEMP.

°C

TEMP

HANNEL

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).

°C

SETTING THE PRINTING INTERVAL FOR HI 9271 & HI 9274 ONLY

Turn the meter on by pressing ON/OFF.

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.

INTV

Any interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 and 180 minutes by using the UP and DOWN keys.

DOWN

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