Instruction Manual
HI 98710 • HI 98810
HI 98740 • HI 98840
Printing and Logging
Thermometers
www.hannainst.com
32
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.
Each thermometer is supplied complete with:
• HI 762BL temperature probe (HI 98710 and HI 98810 only)
• Paper rolls (5 pcs)
• Batteries (4 x 1.5V AA alkaline)
• Instruction manual
• Rugged carrying case.
Note: Save all packing material until you are sure that the
instrument functions correctly. All defective items must be
returned in their original packaging together with the supplied accessories.
For applications requiring documentation and high precision, HI 98710
and HI 98740 are the perfect solution. The advanced HANNA instruments® electronics inside the thermometers linearizes measurements
taken with the NTC thermistor sensor.
These portable instruments are engineered with large backlit displays
to permit use even in dimly lit conditions.
The meters incorporate the latest in GLP (Good Laboratory Practice)
technology. At the touch of a button, the date and the details of last
calibration can be easily retrieved.
A host of default parameters are user-adjustable.
HI 98710 is a single channel unit, while HI 98740 can incorporate
up to 4 temperature probes.
Printing intervals are user-selectable from 1 to 180 minutes. If more
than one probe is used, the printer will label the data of each probe.
HI 98810 and HI 98840 combine the high accuracy and fast response time of the HI 98710 series with an extensive logging feature
and an infrared computer transfer system.
All stored measurements are complete with time, date sample and
probe number.
PRELIMINARY EXAMINATION
GENERAL DESCRIPTION
Dear Customer,
Thank you for choosing a HANNA instruments® product.
Please read this instruction manual carefully before using the instru-
ment.
This manual will provide you with all the necessary information for the
correct use of the instrument, as well as a precise idea of its versatility
in a wide range of applications.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com
These instruments are in compliance with the directives.
PRELIMINARY EXAMINATION ..................................................................3
GENERAL DESCRIPTION ...........................................................................3
FUNCTIONAL DESCRIPTION .......................................................................5
SPECIFICATIONS ..................................................................................6
INITIAL PREPARATION .............................................................................. 7
SETUP MODE ..................................................................................8
TAKING TEMPERATURE MEASUREMENTS ................................................ 14
HI98810 / HI98840 PRINTING & LOGGING FUNCTIONS .......................... 15
HI98710 / HI98740 PRINTING FUNCTIONS .......................................... 18
GOOD LABORATORY PRACTICE (GLP) ..................................................... 20
OTHER FEATURES ............................................................................... 20
DATA TRANSFER TO PC ......................................................................... 21
MEMORY ORGANIZATION ...................................................................... 22
PRINTER MAINTENANCE ....................................................................... 23
FAULT CONDITIONS .............................................................................. 23
BATTERY REPLACEMENT ....................................................................... 24
TEMPERATURE PROBES ....................................................................... 25
UN-HOUSED NTC SENSORS ................................................................... 26
ACCESSORIES ...................................................................................... 2 7
WARRANTY ......................................................................................... 28
CE DECLARATION OF CONFORMITY ........................................................ 28
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner
TABLE OF CONTENTS
54
FUNCTIONAL DESCRIPTION
1) Power adapter plug
2) Temperature probe connectors (1 or 4, depending on model)
3) Liquid Crystal Display
4) PAPER key, to move the paper up
5) ON/OFF key, to turn the meter on or off
6) ALT key, to activate alternate key function
7) CH/TIME key (HI 98740 and HI 98840), to select input chan-
nels, view date & time, and (with ALT) enable backlight;
TEMP/TIME key (HI 98710 and HI 98810), to select tempera-
ture reading, view date & time, and (with ALT) enable backlight
8) LOG key, to store and/or print measurements
9) LOT INFO key (HI 98810 and HI 98840), to move down or
(with ALT) view logging information;
key (HI 98710 and HI 98740), to move down
10) CFM key, to move right or (with ALT) confirm values
11) FNC key, to move up or (with ALT) select function codes
The log-on-demand function is activated by simply pressing one button, while for automatic logging, the user can select a time interval
from 1 to 180 minutes.
All logged data can be transferred to a PC by placing the instrument
on the HI 9200 infrared interface, connected to the computer serial
port. The connection is handled with the HI 92000 Windows® compatible software from HANNA instruments®.
HI 98810 accepts one temperature probe while HI 98840 can be
connected to 4 separate probes at the same time.
All models use the HI 762 series of thermistor probes by HANNA
instruments®, and can be powered with batteries or with a 12 Vdc
supply.
To prolong battery life, the backlight and printing features are disabled when the batteries are getting low; the "LOBAT" indication is
displayed on LCD to warn the user. However, the meter continues to
measure correctly even when the low battery indication is displayed.
The meter automatically switches itself off when the batteries are too
weak to support proper function.
The meters are equipped with an internal lithium battery that powers the clock circuit even in the absence of power supplies.
For long term field and lab applications, these meters can be connected
to a 12 Vdc adapter.
Each meter can also be uniquely identified by the user by assigning
an ID code.
76
Each meter is supplied complete with batteries. Remove the back
cover, unwrap the batteries and install them while paying attention
to the polarity.
Alternatively, connect the a 12 Vdc voltage adapter to the power
adapter plug.
To prepare the instrument for use, choose the most appropriate
temperature probe(s) for your application (see "Accessories") and
connect it (them) to the the instrument.
All the probes have been precalibrated at the factory and no
calibration is needed.
With the meter facing you, channel #1 is the first connector on the
top left hand side.
To switch the meter on, press the ON/OFF key.
The batteries charge status or "LINE" message
(if external power adapter is connected) will be
displayed on the LCD for a few seconds.
The meter is now ready to operate.
To maximize battery life, the meter is automatically switched off after a
user selectable period of non-use (this feature is enabled and set to 5
minutes by default; it can be disabled or changed through setup
code #40).
If in logging mode, after the period of non-use, the meter will
continue to monitor the temperature periodically at the end of every
logging interval. Only the "LOG" indication will be visible on LCD.
While storing data in memory, during the sleep mode, the reading
will appear briefly on the LCD.
To reactivate the display press the ON/OFF key.
Note: When the use of an alternate function (FNC, CFM and LOT
INFO) is requested, press and hold the ALT key first and then
the second key.
ON/OFF
SPECIFICATIONS
Range -50.0 to 150.0°C ; -55.0 to 300.0°F
Resolution 0.1°C (-30 to 130°C); 0.2°C outside
0.1°F (-18 to 225°F);
0.2°F (225 to 260°F); 0.3°F outside
Accuracy ±0.4°C (-20 to 120°C); ±0.7°C outside
(@20°C/68°F) ±0.8°F (-4 to 248 °F); ±1.3°F outside
for one year (excluding probe error)
Typical EMC Dev. ±0.4°C; ±0.8°F
Channels HI 98710 / HI 98810: 1 channel
HI 98740 / HI 98840: 4 channels
Probe HI 762 series
Printer Low power impact, 14 characters per line, using
38 mm plain paper (HI 710034)
Printing/Logging Selectable at
Interval 1, 2, 5, 10, 15, 30, 60, 120 or 180 minutes
Auto-off Selectable after 5, 10, 15, 30, 45 or 60 minutes
Power supply 4 x 1.5V AA alkaline batteries / 350 hours of use
(without printing and backlight); or 12 Vdc input
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 220 x 82 x 66 mm (8.7 x 3.2 x 2.6")
Weight 550 g (1.2 lb.)
INITIAL PREPARATION
98
PASSWORD PROTECTION
Setting of the GLP parameters (calibration alarm time-out, instrument ID code, time and date) can be password protected. If password
is set to a value different from 0000 (factory setting), the user will be
asked to enter the password.
• Select the desired GLP parameter code.
• Enter the password by the arrow keys.
• Press the ALT and CFM keys to
confirm.
• If password is wrong the meter will return to the function selection
mode without any warning message.
• If password is correct, the meter provides access to the parameter.
PARAMETERS SETTING
• Once the parameter code has been entered, the appropriate message will scroll across the LCD for a few seconds.
• The current value of the selected parameter on the upper LCD and
the parameter code on the lower LCD will be displayed. The first
digit will blink if the parameter can assume continuous values. All
the digits will blink if the parameter can assume only a fixed set of
values.
• Enter the new value using the arrow keys.
• Press ALT and CFM to confirm the value.
The following table lists the setup codes along with the description of
the specific setup items, their valid values and the factory settings
(default):
Code Valid values Default
00 Lot data printing/scrolling100 to 16 00
01 Logging interval 1,2,5,10,15,30,60,120,180 1
02 Print lots data summary
1
03 Printer enable
1
On(enabled); Off(disabled) On
04 Reset sample number
2
05 Log on demand delete
1
Setup can be used to view data regarding instrument status (e.g.
battery charge) or GLP data (e.g. calibration date) or to view or print
the logged data. It also allows the user to change the meter parameters (e.g. time) and to gain access to stored data.
• To enter this mode ensure the meter is
not logging and then press the ALT and
FNC keys.
• The scrolling message "Insert the function code or press "ALT" "FNC" to escape" in the upper LCD and the indication "F 00" with
the first digit blinking in the lower LCD will be displayed.
• Enter the first digit of the code of the parameter you want to set
using the or key and pass to the next digit with . The
second digit will start blinking.
• Enter the second digit using the or
key.
• Press ALT and CFM to confirm the code.
• If the entered code doesn't exist the "Err"
message will be displayed for a few seconds and then the message "Insert the
function code or press ALT - FNC to escape" will recommence scrolling in the
upper LCD.
SETUP MODE
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