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Operating Manual for Digital Quick-Response Thermometer
Specification:
Range:
Resolution:
Accuracy:
Sensor:
GTF300:
Display:
Working temperature:
Nominal temperature:
Atmospheric humidity:
Power supply:
Battery service life:
Low battery warning:
Dimensions of case:
Weight:
EMC:
Points to be observed during operation
1. Make sure to apply correct operating voltage as low or damaged battery will lead to measuring inaccuracies. If "BAT" is
shown in the display or are the measurements obviously wrong the battery has been used up and needs to be replaced.
Please note: If the battery voltage falls even lower the voltage may not be sufficient for "BAT" to be displayed so that
there will be no "BAT" indication although the battery has been used up. We recommend to make it a rule
to always check the battery if the values indicated seem to be completely out of range.
2. Make sure to maintain device properly and to operate it in accordance with the specification listed (do not throw, knock etc.).
3. Make sure that sensor and device are always subjected to the same temperature, i.e. try to avoid holding sensor plug in
your hand for a longer periode of time as well as subjecting device to an additional heat source as this may result in
measuring inaccuracies.
4. Mains operation: When using a power supply unit please note that operating voltage has to be 10 to 12 V DC. Do not
apply overvoltage!! Cheap 12V-power supply units often have excessive no-load voltage. We, therefore, recommend using
regulated voltage power supply units. Trouble-free operation is guaranteed by our power supply GNG10/3000.
Prior to connecting the plug power supply unit with the mains supply make sure that the operating voltage stated at the
power supply unit is identical to the mains voltage.
5. The battery has to be taken out, when storing device above 50°C.
It is recommended to take the battery out, when storing device for a longer period of time
6. The length of the measuring sensor (GTF300) can be reduced as desired so that it will be fully operational again after
sensor has been broken. To do so, please strip both wire ends for approx. 10mm and twist well. Measurements are not
possible as long as wire ends are exposed.
Disposal instruction:
The device must not be disposed in the unsorted municipal waste! Send the device directly to us (sufficiently stamped), if it
should be disposed. We will dispose the device appropriate and environmentally sound.
GMH 1150
-50 to +1150°C
1°C
<1% ±1 digit from -20 to +550°C and 920 to 1150°C, <1,5% ±1 digit from 550 to 920°C.
For more detailed values please refer to att. correction table.
NiCr-Ni, acc. to ½ DIN 43710 for plug-in operation (not included in scope of supply!)
Special design sensors incl. the following probe:
2 teflon-isolated, helically winded thermoelement wires with a dia of 0,2mm each, length approx.
1m with miniature flat plug, free from thermo-voltage. Sensor suitable for surface and immersion
measurements. Response time in liquids 0,3sec. Measuring range: -65 to 300°C.
approx. 13 mm high, 3 1/2digit LCD
0 to 45°C, please avoid quick temperature changes, if possible, otherwise a temperature
adjustment time of approx. 15 minutes has to be taken into account.
25°C
0 to 80 % r.F. (not condensing)
9V-battery type IEC 6F22 (included) as well as additional d.c. connector
for external 10-12V direct voltage supply. (suitable power supply: GNG10/3000)
approx. 700 operating hours
"BAT" displayed automatically in case of low battery
approx. 142 x 71 x 26 mm (H x W x D), Impact-resistant ABS plastic housing, Front side
IP65, integrated pop-up clip for table top or suspended use.
approx. 160g (cpl. device with battery)
The device corresponds to the essential protection ratings established in the Regulations of
the Council for the Approximation of Legislation for the member coutries regarding
electromagnetic compatibility (89/336/EWG). Additional error: <1%
GMH Messtechnik GmbH • Standort Greisinger
Hans-Sachs-Straße 26 • D-93128 Regenstauf
+49 (0) 9402 / 9383-0 +49 (0) 9402 / 9383-33
H47.0.01.6C-02
page 1 of 2
(internal pin Ø 1.9mm)
info@greisinger.de
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