Hanna Instruments HI 92710 User Manual

Instruction Manual

HI 92710 / HI 92740
HI 92810 / HI 92840

Portable Microprocessor

Printing and Logging

Thermometers

These Instruments are in Compliance with the CE Directives

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

TABLE OF CONTENTSTABLE 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

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.

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 cor­rectly. All defective items must be re­turned in its original packaging together
with the supplied accessories.

GENERAL DESCRIPTION

The Hanna Instruments portable thermom­eters with built-in printers are microproces­sor-based and enable you to accurately mea­sure 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 condi­tions.
Measurements can be performed with lab­grade 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.

1

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 inter­vals, 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.

LCD DISPLAY FUNCTIONAL DESCRIPTION

1 ) Primary Display

2) Secondary Display

1

°C

LOG INTV

DATE
TIME

LO BAT

2

2

FUNCTIONAL DESCRIPTION

HI92710 AND HI92740

1

2

instrum nts

e

3

4

5

6

7

°C

HI 92740C

MICROPROCESSOR
PRINTING THERMOMETER

ON/OFF

INTV

PAPER

UP

RANGE

-50.0 . . . +150.0°C

DOWN

8

9

10

11

0.1/1

PRINT

LOG

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 HI 92740 only)

9) DOWN key, to set up printing interval and to select
channel # (for HI 92740 only)

10) PRINT key, to obtain a printout (printing accumula­tive time and temperature)

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

3

FUNCTIONAL DESCRIPTION

HI 92810 AND HI 92840

1

2

instrum nts

e

3

4

5

6

7

°C

HI 92840C

MICROPROCESSOR
LOGGING THERMOMETER

PRINT

ALT

PAPER

UP

RANGE

-50.0 . . . +150.0°C

DOWN

8

9

10

11

TEMP

TIME

LOG

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 HI 92840 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.

4

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

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

Typical EMC ±0.6°C ±1.2°F
Deviation

Battery 4x1.5V AA size, life of 500 hours
Type/Life with 60' printing interval

Auto Shut-off After 5 minutes of non-use
Channels HI92710/HI92810: 1; HI92740/HI92840: 4
Printer Low-power impact belt type,

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

Environment 0 to 50 °C (32 to 122°F)

Dimensions 220x82x66mm (8.7x3.2x2.6")
Shipping Instrument: 500g (18 oz.)

Weight Kit: 1.4 kg (3.1 lb.)

Outside: ±0.7°C Outside: ±1.3°F

for one year, excluding probe error

Socket for 12VDC adapter

14 characters per line using

38 mm plain paper

Max. 95% RH

5

INITIAL PREPARATIONINITIAL PREPARATION

INITIAL PREPARATION

INITIAL PREPARATIONINITIAL PREPARATION

Each meter is supplied complete with batter­ies. Remove the back cover, unwrap the bat­teries and install them while paying attention
to the polarity.

To prepare the instrument for use, connect
the temperature probe to the connector lo­cated on the top of the instrument.

To switch the HI 92710 and the HI 92740
"ON", press the ON/OFF key.

ON/OFF

To switch the HI 92810 and the HI 92840
"ON" press the TEMP key.

TEMP

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 con­nectors.

With the meter facing you, channel #1 is the
first connector on the top left hand side.

6

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.

°C

CH

This also indicates the possibility of a broken
probe cable. The channel is displayed with
"CH" and the number of channel (four chan­nels 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 ex­ample, 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 auto­matically switched off after 5 minutes of non­use. However, the meter will continue to monitor
temperature (if in the logging mode) .

7

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

SETTING THE PRINTING INTERVAL (for
HI92710 and HI92740 only)

Turn the instrument on by
pressing the ON/OFF key.

ON/OFF

Press the INTV and the UP or DOWN keys
simultaneously.

UP

OR

INTV

DOWN

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 print­ing interval by pressing the UP or DOWN
key. Select between 1, 2, 5, 10, 15, 30, 60,
120 and 180 minutes.

INTV

SETTING THE MEASUREMENT RESOLU­TION (for HI92710 and HI92740 only)

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

°C

0.1/1

CH

With four channels versions, all four channels
readings automatically change by pressing
this key.
To return the reading to the previous resolu­tion, simply press the 0.1/1 key.

8

SETTING DATE / TIME / PRINTING INTER­VAL (for HI92810 and HI92840 only)

Press the ALT and the TIME keys simulta­neously. The display will show the date set­ting. At the bottom of the display the year
will be blinking.

ALT

TEMP

UP

TIME

DATE

Use the UP or the DOWN arrow keys to
select the year.

UP

DOWN

When the correct year is selected, press the
TIME key once. The left digit of the display
blinks, showing the month.

DATE

TIME

Select the month by using the UP or the
DOWN arrow keys.

UP

DOWN

9

Press the TIME key, the right hand side of
the display shows the day.

DATE

TIME

Use the UP or the DOWN arrow key to
select the correct day.

UP

DOWN

Press the ALT and the TIME keys simulta­neously and the display will now show the
clock time with the printing interval blinking.

ALT

TEMP

UP

TIME

TIME

INTV

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.

UP

DOWN

Once the desired interval is selected press
the TIME key once to set it, the left digits of
the display will start blinking.

10

To select the hour, press the UP or the
DOWN arrow keys (24 hour clock).

UP

DOWN

To set the hour press the TIME key once, the
minutes start blinking.

TIME

INTV

TIME

Use the UP or the DOWN keys to select the
minutes.

UP

DOWN

Press the ALT and the TIME keys to leave
this mode.

ALT

TEMP

UP

TIME

The time, date and printing interval are now
set and stored in the memory even when the
display is switched off.

11

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.

TIME

INTV

TIME

To view the date, press the UP key when the
LCD is displaying time.

DATE

UP

To view temperature press TEMP key.

°C

CHANNEL

TEMP

CH

Using UP or DOWN keys select which chan­nel to monitor (four channels versions only).

UP

DOWN

If "----" is displayed, it indicates that the
temperature probe or calibration test plug are
not connected.

°C

CH

This also indicates the possibility of a broken
probe cable. The channel is displayed with
"CH" and the number of channel (four chan­nels versions only).

12

PRINTING / RECORDINGPRINTING / RECORDING

PRINTING / RECORDING

PRINTING / RECORDINGPRINTING / RECORDING

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

WITH HI 92710 AND HI 92740

WITH HI 92710 AND HI 92740WITH 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

a

d

PRINT

0001 *10.25

#1 20.0 °C.
#2 85.5 °C
#3 ---- °C.
#4 ---- °C.

.

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

LOG

appear for a few seconds on
the display to indicate the
correct operational mode. The
meter will write the first mea-

LOG INTV

surement taken in that mo­ment, and will print at the
interval selected thereafter
until the ON/OFF key is
pressed.

ON/OFF

b
c

The printout provides the following informa­tion:

a- A running log number
b - A running sample num-

a
b

f

==07== 0005M

0014 *01.05
#1 25.0 °C
#2 27.3 °C..

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 con­nected.

13

c
d
e

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 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.

°C

CH

LOG

If more than one channel is being monitored,
the printer will automatically print the tem­perature of all the connected channels.

When the meter is in record­ing mode "LOG" is displayed

°C

on the bottom left corner of

LOG

the LCD with the tempera-

CH

ture value on the primary dis­play.

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 affect-

PRINT

ing the running number.

• Once in recording mode, the printing inter­val cannot be changed. Exit the recording
mode first (pressing the ON/OFF key) be­fore setting the new interval.

TO STOP RECORDING

In order to quit the recording
mode, press the ON/OFF
key. This will generate a re­cording exit status printout.

14

ON/OFF

PRINTING / LOGGINGPRINTING / LOGGING

PRINTING / LOGGING

PRINTING / LOGGINGPRINTING / LOGGING

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

WITH HI 92810 AND HI 92840

WITH HI 92810 AND HI 92840WITH 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

PRINT

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)

a

e

10-01-96

0001 *10.24

#1 20.0
#2 45.4
#3 ----­#4 -----

.

°C

.

°C

.

°C

.

°C

e- Channel numbers (HI92840 only)

LOGGING MODE

This function is suggested when remote mea­surements 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 Op­erational Guide section on page 8).

Press the ALT and the LOG keys 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.

b
c
d

UP DOWN

ALT

LOG

TIME LOG

TEMP

The printer will print a com­plete set of data and the
"LOG" symbol will appear on
the bottom left corner of the
LCD.

15

Log number

Page number

°C

LOG

CH

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.

PRINT

ALT

PAPER

UP

°C

LOG

CH

After approximately 5 minutes the display will
switch off but the logging function remains
active.

To reactivate the display
press the TEMP key.

TEMP

If you wish to re-start printing press the ALT
and PAPER keys simultaneously again.

The printout provides the following informa­tion:
a- Date (DD-MM-YY)
b- A running log number

b
f

10-01-96

==07== 0005M

0001 *14.25
#1 25.0 °C
#2 27.3 °C..

c - Printing interval indicator in minutes
d- Time (HH-MM)
e- Temperature value(s)
f - Running sample number (in that particular

log)

a
c
d
e

Notes:

• Once in the logging mode,

ALT

the interval cannot be
changed. Exit the logging

TEMP

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 pro­duced without affecting the
running sample number.

16

UP DOWN

TIME LOG

PRINT

SAMPLE NUMBER

During logging it is possible
to know the running sample
number. Press the LOG key

LOG

twice and the display will
show the number of values
that have been taken in the
current log.

LOG

LOGGING MODE WITH PRINTING

This function is suggested when an immedi­ate 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

ALT

UP DOWN

the logging mode. The log
number and page number will

TEMP

TIME LOG

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 bot­tom left corner of the display.

If no key is pressed, the dis­play goes blank after about 5 minutes. During
printing, the display shows the time, interval
and the “LOG” symbol.

LOG INTV

TIME

17

To reactivate the display
press the TEMP key.

TEMP

The printout provides the following informa­tion:

a- Date (DD-MM-YY)
b- A running log number
c - A running sample number

(in that particular log)

d- Printing interval indicator in

b
c

10-01-96

==07== 0005M

0014 *14.25
#1 25.0 °C
#2 27.3 °C..

minutes

e- Time (HH-MM)
f - Temperature value(s)

It is always possible to switch from the log­ging 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.

a
d
e
f

PRINT

ALT

PAPER

UP

°C

LOG

CH

Notes:

• It is recommended to use the adapter
during logging with printing mode, espe­cially when many printout are going to be
taken.

• Before proceeding with logging with print­ing, make sure there is enough paper for
your measurements. When the paper is
finished the meter will not advise the op­erator and the printouts could be lost. If
this happens, data will continue to be
stored into memory, and it is always pos­sible to print them at different time (see
page 22).

18

• It is possible to insert a new paper roll
during logging session (see page 30)

• Once in the logging mode,
the interval cannot be

UP DOWN

changed. Exit the logging

ALT

mode first (pressing the

TIME LOG

ALT and the LOG keys)

TEMP

before setting the new in­terval.

• If the PRINT key is
pressed while in logging
mode, a printout is pro­duced without affecting the
running sample number.

PRINT

TO STOP LOGGING

Press the ALT and the LOG
keys simultaneously, this will

ALT

UP DOWN

generate a log exit status
printout.

TEMP

TIME LOG

Log number

Total sample number

10-01-96

==07== 0005M

0016 *16.25
#1 20.0 °C
#2 57.3 °C..

19

LOG EXIT
Date/Time

TO SCAN STORED DATA ON DISPLAY

Press the LOG key. The display will show
the log number and the page number of the
next log.

LOG

While pressing the ALT key, press the DOWN
key until the log number to scan appears on
the secondary display. The primary display
will show the number of samples of that
particular log.

DOWNALT

Press the ALT and the TEMP keys simulta­neously. This now shows the date in which
the log has started.

ALT

TEMP

DATE

Press the UP key and the time of the most
recent sample will be displayed.

TIME

UP

20

Press the UP key and the temperature will
be displayed.

°C

CH

Continue pressing the UP key to display one
by one all the memorized data of the same
log in the above sequence i.e. time and tem­perature value.

Press the DOWN key to revert back to sam­pling time and move back through samples.

To exit from the recall mode
press the LOG key.

LOG

Note: this mode will not alter data into

memory

21

TO PRINT STORED DATA

Once a log number is se­lected by using ALT and
DOWN keys, as detailed in

DOWNALT

the chapter "TO SCAN
STORED DATA ON DIS­PLAY" you can print all or
part of that log section by
using the ALT and the PRINT
keys. The printer will start to

PRINT

print the logged section be­ginning with the selected

ALT

sample number without alter­ing the content of the memory.

Note: It is always possible to

print only the sample
shown on the display

PRINT

by pressing the PRINT
key.

Note: Before proceeding with printing, make

sure there is enough paper for the data
to be printed. When the paper is fin­ished the meter will not advise the
operator and the printouts could be
lost. If this happens,
stop the printer by
pressing the ALT and

PRINT

PAPER

the PAPER keys si­multaneously. Data will

ALT

UP

be kept into memory.
Insert a new paper roll and repeat the

instruction above starting from the last
printed sample number (see chapter
"PRINTER MAINTENANCE" on page 30
for changing paper roll).

22

WORKING SAMPLE (HI 92810 and HI 92840
only)

The following is a step by step procedure of a
typical monitoring situation where we have
assumed that you have already inserted the
batteries and set the date and time correctly.
It is an example of a meter used to monitor
and store every 2 minutes. The meter will log
10 samples but print only 3, display the data
contained in sample number 1 and print
samples 5 through 10.

Example:

Step One - Setting the printing/logging inter­val at 2 minutes:

Press ALT and TIME keys twice. The time
will appear on the primary display with a
number representing the printing/logging in­terval blinking.

TIME

INTV

TEMP

ALT

UP

TIME

Press either the UP or DOWN keys until a
blinking "2" appears.

TIME

UP

DOWN

INTV

Press ALT and TIME keys to exit. The dis­play will now show the current time together
with the selected interval of 2 minutes.

ALT

TEMP

UP

TIME

TIME

INTV

Step Two - Entering the log mode:

Press ALT and LOG keys. Initially, "L 01" will
appear on the primary display.

UP DOWN

ALT

TEMP

TIME LOG

LOG

23

The meter is now in the printing/logging mode
utilizing log number 1, page 16. "LOG" and P
15 shown in the secondary display indicate
that the meter has entered the log mode, and
has 15 available pages of memory remaining.
After the initial printout, the time and printing/
logging interval will reappear.

TIME

INTV

Press the LOG key to view the running log
and page numbers.

LOG

LOG

Press the LOG key again to view the running
sample number

LOG

LOG

Step Three - Stopping the printer during the
log mode:

After the third printout is completed, press
the ALT and PAPER keys. At this point the
meter will continue to log data every 2 min­utes but will no longer print any information.
"LOG" will keep blinking on the secondary
display for the remainder of "L 01" (log num­ber 1).

PAPER

PRINT

ALT

UP

LOG

Note: If the display has shut off press the

TEMP key to reactivate it, then press
the LOG key twice to view the running
sample number.

24

Step Four - Leaving the log mode:

Once the number of samples stored in memory
has reached 10, press the ALT and LOG
keys. The meter will exit the log mode after
generating a log exit status printout.

10-01-96

==01== 0002M

0010 *00.18

TEMP

ALT

UP DOWN

TIME LOG

Step Five - Reviewing the stored data in
sample number 1:

Press LOG key to enter the memory recall mode.
The next available log and page number will be
shown on the display.

LOG

Press the ALT and DOWN keys until the
number 10 and "L1" appear, indicating that a
total of 10 samples were recorded in log
number 1.

DOWNALT

To view the data stored in sample number 1 first
use the UP and DOWN keys to scroll through the
sample numbers.

UP

DOWN

Once the number is displayed, press the ALT
and TEMP keys. The date during which that
sample was taken will appear first.

ALT

TEMP

25

DATE

Press the UP key to view the time.

TIME

UP

Press the UP key again to view the tempera­ture.

°C

UP

CH

With HI 92840 when more than one probe
have been connected, press the UP key to
view the other channels values.

Step Six - Printing the stored data (samples
5 through 10):

Press and hold the ALT key and press the
DOWN key until the total number of samples
recorded in log number 1 is displayed.

DOWNALT

Scroll through the sample numbers by using
either the UP or DOWN keys until number
"5" appears.

UP

DOWN

Press the ALT and PRINT keys. The meter
will print out samples number 5, 6, 7, 8, 9
and 10 consecutively.

26

PRINT

ALT

DATA TRANSFER TO PCDATA TRANSFER TO PC

DATA TRANSFER TO PC

DATA TRANSFER TO PCDATA TRANSFER TO PC

HI92810 and HI92840 provide infrared emit-

ting circuitry.
Set the meter to the TIME

mode and place your data­logger on a HI9200 Infrared
Transmitter (ensuring that the
two infrared LEDs are placed

TIME

on top of each other). The memory can be
downloaded to your PC through the HI9200's
RS 232 port.

During the data transfer the
instrument displays the mes­sage "r 232".

Using the HI9200 Infrared Transmitter, all
recorded data can be fed to your Personal
Computer for easy reproduction, storage or
elaboration without the interference of cables
or cords between the meter and the transmit­ter.

27

Data transmission from the instrument to the
PC is now much easier with new HI92000
Windows® compatible application software of­fered by Hanna Instruments.

HI 92000 allows you to use the powerful
means of the most spread sheet programs
(e.g.Excel©, Lotus 1-2-3©). Simply run your
favorite spread sheet and open the file down­loaded by HI 92000. It is then possible to
make any elaboration available with your soft­ware (e.g. graphics, statistical analysis).

User friendly, HI 92000 offers a variety of fea­tures and has an on line help to support you
throughout any situation.

To install HI 92000 you need a 3.5" drive and
a few minutes to follow the instructions con­veniently printed on the disk label.

FAULT FUNCTIONS

HI 92710, HI 92740, HI 92810 and HI 92840

are factory programmed to automatically di­agnose a fault. This is displayed with error
codes on the LCD.

Error codes:
PEr 0, PEr 1, PEr 2 = Short circuit on the

system, the meter should be returned
for repair (see Warranty section).

PEr 3 = Printer mechanism fault - repair

needed (see Warranty section).

PEr 4 = Printer clutch jammed - reset the

printer (see page 31).

PEr 9 = Printer jammed - reset the printer

(see page 31).

Windows® is registered Trademark of "Microsoft Co."
Excel© Copyright of "Microsoft Co."
Lotus 1-2-3© Copyright of "Lotus Co."

28

MEMORY ORGANIZATION

(HI92810 & HI92840 ONLY)

Capacity: 16,000 data samples, divided into

16 pages.

Data capacity per page:

1000 data samples with 1 chan­nel monitored;
500 data samples with 2 chan­nels monitored (four channels
versions only);
250 data samples with 3 or 4
channels monitored (four chan­nels versions only).

Each time a new logging period starts, it
automatically starts from a new page.

If “LOGGING” is still on, and the available
page is “0” the meter will overwrite the first
LOT DATA in the existing meter memory.
During logging the meter automatically re­turns to the oldest page in the memory and if
it contains data, it will overwrite. In this case
the first log will not correspond to the oldest
set of data

It is recommended to periodically “clean” the
memory. Save the data in a PC if you need
to keep a record and then disconnect the
batteries for about 1 minute. If you do this,
remember to set the date and time, once the
batteries have been connected again.

ATTENTION

Data are stored into memory until batteries
are removed.

If replacement of the batteries is needed and
data are not to be lost, plug the adapter in
and proceed with batteries replacement as
described below. Only once batteries have
been replaced it is possible to unplug the
adapter without loosing the stored data.

29

PRINTER MAINTENANCE

TO CHANGE THE INK CARTRIDGE

When printouts become faint, it might be nec­essary to change the ink cartridge. Contact
your Hanna authorized center.

TO INSERT THE PAPER ROLL

The HI 92710, HI 92740, HI 92810 and
HI 92840 use plain paper rolls 38 mm width

(HI710034). To insert a new roll is very easy.
Open the paper cover pulling it gently.

Take the carton cylinder away.

Insert the paper edge in the printer slot and
feed the printer by pressing the PAPER key.

PAPER

30

Allow approximately 5 cm (2") to exit from the
printer and replace the paper cover.

TO RESET PRINTER

Take the battery
cover off by remov­ing the screws. Us-

-

1.5V

ing a pencil press
the black button.
This will reset the
printing mecha­nism.

+

-

1.5V

+

-

1.5V

+

-

1.5V

+

SCREW

POTS

RESET

Before replacing the
battery cover inves­tigate the cause of
the printer jam (e.g.
the paper caught
under the cover and
prevented printer
from advancing pa­per feed).

Replace the battery
cover and secure screws.

31

BATTERY REPLACEMENT

If "LO BAT" appears on the
display, it is an indication
that the batteries are running

°C

CH

LOBAT

down. If it appears during
printing, it means that 200 printouts can be
made before the batteries are exhausted.
When there is only sufficient power for 100
printouts, the "LO BAT" sign is displayed
continuously in the LCD.

Battery replacement must only take place
in a non hazardous area using the battery
types specified in this instruction manual
(see page 39).

-

1.5V

+

-

1.5V

+

-

1.5V

+

-

1.5V

+

SCREW

POTS

RESET

In order to replace run down batteries, simply
remove the two screws on the rear cover of
the instrument and replace the four 1.5V AA
batteries with new ones, paying attention to
the correct polarity.

A 12VDC power source can also be used to
power the unit (see the Accessories section
page 39).

32

Note: The instrument uses the following con-

figuration.

+

It is recommendable to purchase Hanna In­struments HI 710005 and HI710006 voltage
adapters that use the proper polarity con­figuration.
HI92710, HI92740, HI92810 and HI 92840
can also be used with other adapters. In
this case, remember to check the correct
polarity of your adapter before connecting it
to the meter.

WARNING: In HI92810 and HI92840, if the

external power supply and bat­teries are disconnected, all
stored data will be erased. Al­ways apply external power to
the instrument when changing
low batteries to prevent data
from being lost.

-

33

CALIBRATION

All Hanna Instruments thermometers have
been accurately pre-calibrated at the factory.

However, as a general rule, it is recommended
to have all thermometers recalibrated at least
once a year.

For an accurate annual recalibration, contact
your nearest Hanna Service Center.

Hanna Test Plugs provide a quick and easy
way to test the meter's accuracy by simply
connecting these Test Plugs to the probe
connector of the meter.

If the reading differs by more than 0.4°C
(0.8°F) from the Test Plug value, the unit is
due for re-calibration.

Choose the right Test Plug to suit your needs:

HI762-18C Calibration key, -18.0°C ±0.4°C
HI762000C Calibration key, 0.0 °C ±0.4°C
HI762070C Calibration key,+70.0°C ±0.4°C
HI762-004F Calibration key, -0.4°F ±0.8°F
HI762032F Calibration key, +32.0°F ±0.8°F
HI762158F Calibration key,+158.0°F ±0.8°F

34

TEMPERATURE PROBES

Hanna Instruments offers a wide range of probes
to meet all your requirements (from liquids to
air and penetration to surface). These probes
use highly sensitive thermistor sensors which
provide greater accuracy, faster response and
a temperature range that is superior to conven­tional thermistor probes. All Hanna tempera­ture probes are supplied pre-calibrated from
the factory and are ready to be used with your
meter. The probes are easy to connect to your
meter with a standard RCA connector. Com­pletely interchangeable, these probes make it
possible for you to switch from one to another
without wasting time and money going through
tedious calibration procedures. They are avail­able in different handle colors to avoid cross
contamination during testing:

HI762A Air probe, with 1 m (3.3') cable

and white handle

HI762A/10 Air probe, with 10 m (33') cable

and white handle

HI762BL General purpose liquid probe,

with 1m (3.3') cable and black
handle

HI762L General purpose liquid probe,

with 1m (3.3') cable and white
handle

HI762L/2 General purpose liquid probe,

with 2m (6.6') cable and white
handle

HI762L/10 General purpose liquid probe,

with 10m (33') cable and white
handle

HI762PBL Penetration probe with 1 m

(3.3') cable and blue handle

HI762PBL/10 Penetration probe with 10 m

(33') cable and blue handle

HI762PG Penetration probe with 1 m

(3.3') cable and green handle

35

HI762PG/10 Penetration probe with 10 m

(33') cable and green handle

HI762PR Penetration probe with 1 m

(3.3') cable and red handle

HI762PR/10 Penetration probe with 10 m

(33') cable and red handle

HI762PW Penetration probe with 1 m

(3.3') cable and white handle

HI762PW/10 Penetration probe with 10 m

(33') cable and white handle

HI762W Wire probe, without handle

(hard-to-reach places) with

1 m cable

HI762W/10 Wire probe, without handle

(hard-to-reach places) with

10 m cable

Hanna Instruments Temperature Probes

205mm

8.1"
100mm

3.9"

HI 762P

3mm

0.12"

205mm

8.1"

205mm

8.1"

100mm

3.9"

HI 762A

100mm

3.9"

HI 762L

HI 762W

36

3mm

0.12"

3mm

0.12"

6mm

3 mm

0.24"

0.12"

UN-HOUSED NTC SENSORSUN-HOUSED NTC SENSORS

UN-HOUSED NTC SENSORS

UN-HOUSED NTC SENSORSUN-HOUSED NTC SENSORS

It is often necessary in the laboratory to
"customize" testing to meet specific criteria.
For this reason, Hanna offers a wide line of
NTC Thermistor sensors that can be custom
mounted in almost any situation. Select the
sensor that matches your application, attach
it to the RCA adaptor and plug it into the
meter. You now have a temperature sensor
that is custom fit to your requirements.

The following is a list of the NTC Thermistor
sensors and plug available:

HI 76P2-1 RCA plug with 1 meter (3 .3') cord.

HI 76S2-1 NTC Thermistor sensor. Teflon

coated with hole for mounting.

6.4mm

0.25"

25.4mm

1.0"

300mm

12"

TEFLON TUBING

ALUMINUM

HOUSING

19mm

0.75"

4.8mm

0.19"

7.1mm

0.28"

DIA 3.8mm

0.15"

HI 76S2-2 NTC Thermistor sensor. Self-

adhesive, foam disk for mounting.

6.4mm

0.25"

38mm

15"

RELEASE

LINER

38mm

1.5"

25.4mm

MYLAR

FOIL

1.00"

FOAM

DISK

3mm

0.12"

HI 76S2-3 NTC Thermistor sensor. Eye-

connector for mounting.

406mm

6.4mm

0.25"

16"

EPOXY

TIN PLATED Cu

Teflon® is registered Trademark of "du Pont de Nemours & Co."

37

19mm

0.74"

9.6mm

0.38"

#6 STUD SIZE

1mm

0.04"

5.5mm

0.22"

®

HI 76S2-4 NTC Thermistor sensor. Molded

tip with epoxy seal for aggressive
environments.

6.4mm

0.25"

406mm

16"

9.6mm

EPOXY FILLET

0.38"

2mm

0.08"

MOLDED TIP

HI 76S2-5 NTC Thermistor sensor. Aluminum

tab with mounting hole.

6.4mm

0.25"

300mm

12"

DIA 3mm

0.12"
EPOXY

ALUMINUM

HOUSING

8mm

0.31"

12.7mm

0.50"

1.6mm

0.06"

4.7mm

0.19"

HI 76S2-6 NTC Thermistor sensor. PVC

encapsulated tip for protection in
aggressive environments.

6.4mm

0.25"

25.4mm

1.0"

300mm

12"

15.8mm

0.625"

MOLDED

PVC TIP

7.1mm

0.28"

HI 76S2-7 NTC Thermistor sensor. Can be

housed and used in any custom
application.

2.4mm

0.095"

38mm

1.50"

38

LEAD DIA

0.2mm

0.008"

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

POWER UNITS

HI710005 Voltage adapter from 110 VAC

to 12 VDC

HI710006 Voltage adapter from 220 VAC

to 12 VDC

OTHER ACCESSORIES

HI 721308 1.5V AA battery (10 pcs)
HI 9200 Infrared Transmitter (25-pin)
HI 9200/9 Infrared Transmitter (9-pin)
HI 92000 Windows® software for data

transfer to PC

HI 710031 Rugged carrying case
HI 710034 10 Plain Paper Spare Rolls
HI 710035 Spare Ink Cartridge (1 pc)
MANPRNR2 Instruction manual

Windows® is registered Trademark of "Microsoft Co."

39

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

All Hanna Instruments meters are warranted
for two years against defects in workmanship

and materials when used for their intended
purpose and maintained according to instruc­tions.

The probes are warranted for a period of
six months.

This warranty is limited to repair or replacement
free of charge.

Damages due to accidents, misuse, tampering
or lack of prescribed maintenance are not cov­ered.

If service is required, contact the dealer from
whom you purchased the instrument. If under
warranty, report the model number, date of
purchase, serial number and the nature of the
failure. If the repair is not covered by the war­ranty, you will be notified of the charges in­curred.

If the instrument is to be returned to Hanna
Instruments, first obtain a Returned Goods
Authorization Number from the Customer Ser­vice department and then send it with shipment
costs prepaid. When shipping any instrument,
make sure it is properly packaged for complete
protection.

To validate your warranty, fill out and return the
enclosed warranty card within 14 days from the
date of purchase.

All rights are reserved. Reproduction in whole or
in part is prohibited without the written consent
of the copyright owner.

Hanna Instruments reserves the right to modify
the design, construction and appearance of
its products without advance notice.

40

CE DECLARATION OF CONFORMITY

DECLARATION OF CONFORMITY

We

Hanna Instruments Srl
V.le delle industrie 12
35010 Ronchi di Villafranca (PD)
ITALY

herewith certify that the thermometers

have been tested and found to be in compliance with the following regulations:

HI 92710 HI 92740 HI 92810 HI 92840

IEC 801-2 Electrostatic Discharge
IEC 801-3 RF Radiated
IEC 801-4 Fast Transient
EN 55022 Radiated, Class B

Date of Issue: 14-12-1995

D.Volpato - Engineering Manager

On behalf of

Hanna Instruments S.r.l.

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the
environment in which they are used.

Operation of these instruments in residential area could cause unacceptable
interferences to radio and TV equipments, requiring the operator to take all necessary
steps to correct interferences.

Any variation introduced by the user to the supplied equipment may degrade the
instrument's EMC performance.

To avoid electrical shock, do not use these instruments when voltages at the
measurement surface exceed 24VAC or 60 VDC.

To avoid damages or burns, do not perform any measurement in microwave ovens.

41

Stay in Touch with the Manufacturer!

PRINTED IN

ITALY

MANPRNR2

03/98