Hanna Instruments HI 98701 - Manual (Page 3)

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FUNCTIONAL DESCRIPTION
1) Power adapter plug
2) Temperature probe connectors (1 or 4, depending on model)
3) Liquid Crystal Display (LCD)
4) PAPER key, to move the paper up
5) ON/OFF key, to turn the meter on or off
6) ALT key, to alternate key function
7) CH/TIME key (HI 98704 and HI 98804), to select input chan-
nels, view date & time, and (with ALT) enable backlight
TEMP/TIME key (HI 98701 and HI 98801), 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 98801 and HI 98804), to move down or
(with ALT) view logging information
key (HI 98701 and HI 98704), 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
This series of HANNA instruments ® portable thermocouple thermom-
eters with built-in printer and microprocessor technology, provides
accurate temperature measurements and data record.
The meters can support K, J or T thermocouple probes, one for models
HI 98701 and HI 98801, up to four for HI 98704 and HI 98804.
The thermocouple type is user selectable.
The meters are equipped with an easy-to-read LCD with backlight
feature for comfortable reading even in dark environments.
The meters provide a controlled access to calibration and GLP settings
through a password protection method.
An alarm time-out is available to alert the user if too much time has
elapsed since the last calibration and that re-calibration may be
required.
To prolong battery life, the backlight and printing features are
disabled when the batteries are getting low; "LOBAT" indication is
displayed on LCD to warn the user of this condition. However, the
meter continues to measure correctly even when the low battery
indication is displayed. The Battery Error Preventing System (BEPS)
automatically switches the meter 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 instruments can be
connected to a 12 Vdc adapter.
HI 98801 and HI 98804 can store the measurements in memory at
a user selectable interval from 1 to 180 minutes. This information can
be retrieved at a later time and also printed.
HI 98801 and HI 98804 also allow the transfer of stored data to a
computer via the HI 9200 infrared transmitter connected to the
computer RS232 port.
Each meter can also be uniquely identified by the user by assigning
an ID code.
HANNA instruments
® produces a wide range of K-type thermocouple
probes that can be used with these thermometers for many applica-
tions (HI 766 series, see "Accessories" section).
GENERAL DESCRIPTION