User Guide

Instruction Manual
http://www.hannainst.com
These Instruments are in
Compliance with the CE Directives
HI 140 Series
NTC Thermologgers
& HI 90140 Infrared Transmitter
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for correct opera-
tion. Please read it carefully before using the logger. If you
need additional technical information, do not hesitate to e-
mail us at [e-mail].
These instruments are in compliance with the
directives
EN 50081-1 and EN 50082-1.
Remove the instrument from the packing material and
examine it carefully. If any damage has occurred during
shipment, immediately notify your Dealer or the nearest
Hanna Customer Service Center.
Each thermologger comes complete with 3 AA 1.5V batteries.
Note: Conserve all packing material until the instrument
has been observed to function correctly because any
defective item must be returned to the Dealer in its
original packing.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
HI 140 series is a family of temperature loggers with
different ranges (see table below). The user can interact
with the meter., i.e. acquire logged data or set logger
parameters, through a RS232 communication protocol and
a PC. HI 92140 Windows
®
program supports the commu-
nication between the instruments and the PC through the
HI 90140 Infrared Transmitter. For further details see the
program on-line help.
The HI 140 loggers have the following features: logging
enable/disable selectable; programmable High and Low alarm
threshold; programmable logging interval; logging delay
start; programmable user ID; green and red LED indicators;
RS232 optical communication link; non-volatile data stor-
age in EEPROM of logging parameters and logged data;
programmable real time clock; BEPS (Battery Error Prevent-
ing System). The loggers can memorize up to 7600 samples.
The expected battery life is about 4 years at 25°C operating
temperature.
All thermologgers are factory calibrated.
The case of the loggers is waterproof IP67 and on the top
case a plastic window enables optical data transmission to
the HI 90140 Infrared Transmitter and status indication for
the user. The two external LEDs are used for communication
through the transmitter. The status of the logger is indi-
cated by the 2 central LEDs (green and red) on the top case
as follows:
1. GREEN LED ALWAYS ON: this condition
occurs when the meter has been reset, i.e.
when batteries are changed, requiring
the new setting of the logger parameters.
2. GREEN LED FLASHES ONCE EVERY 4”: the
meter is logging.
3. GREEN LED FLASHES TWICE EVERY 4”: the
meter is waiting for a delayed logging
start.
4. RED LED FLASHES: an alarm condition has
been reached (at least once).