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
ANDLOGGING
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
1
22
°C
3
4
5
6
7
8
9
10
11
°C
PRT
PRT
PAPER
PAPER
ALT
ALT
TIME
TIME TEMP TEMP RUN
RUN
PRINTING
THERMOMETER
PRINTING
THERMOMETER
Foodcare
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
1
22
°C
3
4
5
6
7
8
9
10
11
°C
PRT
PRT
PAPER
PAPER
ALT
ALT
TIME
TIME TEMP TEMP LOG
LOG
PRINTING
AND LOGGING
THERMOMETER
PRINTING
AND LOGGING
THERMOMETER
Foodcare
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
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
TEMP
ALT TIME
+
DATE