Hanna Instruments HI 955501 User Manual
Instruction Manual
HI 955501 • HI 955502
Portable
Pt100 Thermometers
www.hannainst.com
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 a correct use.
If you need additional technical support, do
not hesitate to e-mail us at
tech@hannainst.com
Thes instruments are in compliance with the
directives.
PRELIMINARY EXAMINATION
®
Remove the instrument from the packing material and examine it carefully to make
sure that no damage has occurred during
shipment. If noticeable damage is evident,
immediately notify your dealer.
HI 955501 is supplied complete with battery
and instructions.
HI 955502 is supplied complete with fixed
temperature probe (general purpose), battery
and instructions.
Note: Save all packing material until you are
sure that the instrument functions correctly. All defective items must be returned in their original packing.
TABLE OF CONTENTS
Preliminary Examination............................ 3
General Description ................................... 3
Functional Description &
Specifications............................................ 4
Operational Guide ..................................... 5
Display Code Guide .................................. 6
Calibration................................................. 6
Battery Replacement ................................. 7
Accessories............................................... 8
Warranty .................................................... 9
CE Declaration of Conformity .................. 10
GENERAL DESCRIPTION
HI 955501 and HI 955502 are accurate ther-
mometers that perform highly stable,
repeteable and linear temperature measurements using 4-wire Pt100 probes.
HI 955501 works with HI 768 series of Pt100
temperature probes, while the HI 955502 model
is supplied with fixed general-purpose probe.
Both models measure temperatures with 0.1°C
resolution in the -199.9 to 199.9°C range and
then automatically switch to 1°C from 200 to
850°C. Press RANGE and the resolution
switches to 1°C at any time.
A compact, ergonomic design and a wrist-strap
make it easy to carry them anywhere in the lab
or plant.
The shockproof rubber boot is recommended to
protect the meter during field measurements.
32
FUNCTIONAL DESCRIPTION
AND SPECIFICATIONS
OPERATIONAL GUIDE
INITIAL PREPARATION
1. Liquid Crystal Display
2. ON/OFF Key
3. Range Key
HI 955501 HI 955502
Range -199.9 to 199.9°C / -200 to 850°C
Resolution 0.1°C (±199.9°C)
1°C (-200 to 850°C)
Accuracy ±0.2°C & ±1 digit (-120 to 199°C)
±1°C & ±1 digit (-170 to 450°C)
±1% F.S. & ±1 digit (outside)
for one year, excluding probe error
Typical EMC Deviation ±0.5°C
Probe Pt100, stainless steel, 1 m cable
HI 768 series fixed
(not included)
Battery Type / Life
1 x 9V / approx. 150 hours of use
Environment
0 to 50°C (32 to 122°F); RH max 95%
Dimensions 143x80x38 mm (5.6x3.2x1.5")
Weight 320 g (11.3 oz.)
Each meter is supplied complete with a 9V battery. Slide
off the battery cover on the
9 VOLT BATTERY
Battery
Compartment
rear of the thermometer, install the battery and reattach
the cover.
SLIDE OFF
With HI 955501, connect a Pt100 tempera-
ture probe (HI 768 series) to the instrument.
Switch the thermometer on
by pressing the ON/OFF key.
ON
OFF
The temperature value will be
displayed on the LCD.
If no temperature probe is
plugged in (HI 955501 only),
°C
the display will show "- 1 .".
To switch the meter off, press the ON/OFF
key again.
MEASUREMENT RESOLUTION
When switched on, the instrument defaults to
the last selected resolution.
To change the resolution, press RANGE.
The instrument automatically changes its reso-
lution to 1 degree when it passes the limit of
the lower range (±200°C).
LOW BATTERY DETECTION
When the battery becomes
weak, the display shows the
"V" symbol to advise the user.
V
It is recommended to replace
the battery soon.
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