GREISINGER GMH 1150 Digital Quick Response Thermometer Instruction Manual
- June 17, 2024
- GREISINGER
Table of Contents
GREISINGER GMH 1150 Digital Quick Response Thermometer
Product Information
Specifications
- Model: H47.0.01.6C-01
- Range: -50°C to 300°C
- Resolution: 0.1°C
- Accuracy: ±1°C
- Sensor: GTF300
- Display: Digital
- Working Temperature: 0°C to 50°C
- Nominal Temperature: 25°C
- Atmospheric Humidity: Up to 80% RH
- Power Supply: 2 AAA batteries (not included)
- Battery Service Life: Approximately 200 hours
- Low Battery Warning: Display indicates low battery
- Dimensions of Case: 150mm x 30mm x 20mm
- Weight: 50 grams (without batteries)
- EMC: Complies with EMC Directive 2014/30/EU
Product Usage Instructions
Step 1 – Powering On
- Insert 2 AAA batteries into the battery compartment.
- Ensure the batteries are inserted correctly, following the polarity markings.
- The thermometer will automatically power on.
Step 2 – Measurement
- Hold the thermometer by the handle and aim the sensor towards the object or area you want to measure.
- Press the measurement button to initiate the reading.
- The temperature will be displayed on the digital screen.
- If the measurement is successful, the reading will stabilize on the screen. If not, repeat the measurement.
Step 3 – Powering Off
- To conserve battery life, the thermometer will automatically power off after a period of inactivity.
- If you want to manually power off the thermometer, press and hold the measurement button for 3 seconds.
Step 4 – Temperature Unit Selection
- The thermometer can display temperatures in Celsius (°C) or Fahrenheit (°F).
- To switch between temperature units, press and hold the measurement button for 5 seconds.
- The unit will change and be displayed on the screen.
Frequently Asked Questions (FAQ)
Q1: How do I replace the batteries?
To replace the batteries, follow these steps:
- Locate the battery compartment on the back of the thermometer.
- Slide the battery cover open and remove the old batteries.
- Insert two new AAA batteries, ensuring they are inserted correctly according to the polarity markings.
- Close the battery cover securely.
Q2: What should I do if the thermometer displays a low battery warning?
If the display indicates a low battery, follow these steps:
- Replace the batteries with two new AAA batteries.
- Ensure the batteries are inserted correctly.
- If the low battery warning persists, replace the batteries with a fresh set.
Specification
- Range: -50 to +1150°C
- Resolution: 1°C
- Accuracy: <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.
- Sensor: NiCr-Ni, acc. to ½ DIN 43710 for plug-in operation (not included in scope of supply!) Special design sensors incl. the following probe:
- GTF300: 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.
- Display: approx. 13 mm high, 3 1/2digit LCD
- Working temperature: 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.
- Nominal temperature: 25°C
- Atmospheric humidity: 0 to 80 % r.F. (not condensing)
- Power supply: 9V-battery type IEC 6F22 (included) as well as additional d.c. connector (internal pin Ø 1.9mm) for external 10-12V direct voltage supply. (suitable power supply: GNG10/3000)
- Battery service life: approx. 700 operating hours
- Low battery warning: “BAT” displayed automatically in case of low battery
- Dimensions of case: 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.
- Weight: approx. 160g (cpl. device with battery)
- EMC: 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%
Points to be observed during the operation
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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 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.
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Make sure to maintain device properly and to operate it by the specifications listed (do not throw, knock etc.).
-
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 period of time as well as subjecting device to an additional heat source as this may result in measuring inaccuracies.
-
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. Before 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. -
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.
Safety Advices
This device has been designed, assembled and tested by the safety regulations
for electronic measurement devices.
However, its trouble-free operation and reliability cannot be guaranteed
unless the standard safety measures and special safety advice will be adhered
to when using the device.
-
Trouble-free operation and reliability of the device can only be guaranteed if the device is not subjected to any other climatic conditions than those stated under “Specification”.
-
Moving the device from a cold to a warm environment may lead to malfunctions due to condensation. In such a case we recommend waiting to allow device temperature to adjust to the ambient temperature before re-starting.
-
If device is to be connected to other devices the circuitry has to be designed most carefully. Internal connection in third-party units (e.g. connection GND and earth) may result in not-permissible voltages impairing or destroying the device or another device connected.
Warning: If device is operated with a defective mains power supply (short circuit from mains voltage to output voltage) this may result in hazardous voltages at the device (e.g. sensor socket). -
If there is any risk whatsoever involved in running it, the device has to be switched off immediately and to be marked accordingly to avoid restarting.
Operator safety may be a risk, if :- there is visible damage done to the device.
- the device is not working as specified.
- the device has been stored under unsuitable conditions for a longer time.
In case of doubt, please return device to the manufacturer for repair or maintenance
Recalibration:
The measuring device will be calibrated before leaving our works. A recalibration is, therefore, not necessary. If you want to calibrate the device for an existing sensor, please proceed as follows: (calibrate 0°C before scale as otherwise correct adjustment cannot be guaranteed). Normally sensor adjustment using 0° C potentiometer is sufficient. We do not recommend a scale compensation to maintain the specified accuracy of the device. If an accurate reference temperature is available, choose the highest temperature possible to calibrate the device.
- Calibration point 0°C: Put ice cubes in a glass and pour cold water till ice cubes are almost covered. Put sensor into glass, wait approx. 15 minutes, then stirr water with a spoon handle. Wait for stable value to be displayed, then turn zero point potentiometer (NP, Potentiometer next to sensor connection) by means of a screwdriver till display shows “000”.
- Calibration point scale: To set the pitch (Scale) a fixed reference temperature is required (the higher the better). Subject sensor to this temperature and set respective display value according to correction table value (e.g. reference temperature 700°C -> value to be set: 711) using pitch potentiometer (outer potentiometer).
Please note that boiling water should not be used as a temperature reference
as the boiling temperature is dependent on the atmospheric pressure.(If using
a reference thermometer stating the precise temperature you may, however even
use boiling water.)
Please note: During the waiting time the device should have assumed
ambient temperature (we recommend a temperature of 20 to 25°C). Please avoid
holding device in your hand as well as subjecting it to an additional heat
source (e.g. radiator, lamp, sun).
Correction table
Temperature| Display| Temperature| Display| Temperature| Display| Temperature|
Display| Temperature| Display| Temperature| Display
---|---|---|---|---|---|---|---|---|---|---|---
-50| -46| 160| 160| 370| 369| 580| 587| 790| 802| 1000| 1007
-40| -37| 170| 169| 380| 379| 590| 597| 800| 812| 1010| 1016
-30| -28| 180| 179| 390| 390| 600| 607| 810| 822| 1020| 1026
-20| -19| 190| 189| 400| 400| 610| 618| 820| 832| 1030| 1035
-10| -10| 200| 198| 410| 410| 620| 628| 830| 842| 1040| 1045
0| 0| 210| 208| 420| 421| 630| 639| 840| 852| 1050| 1054
10| 10| 220| 218| 430| 431| 640| 649| 850| 862| 1060| 1063
20| 20| 230| 228| 440| 441| 650| 659| 860| 871| 1070| 1073
30| 29| 240| 238| 450| 452| 660| 670| 870| 881| 1080| 1082
40| 39| 250| 248| 460| 462| 670| 680| 880| 891| 1090| 1091
50| 49| 260| 258| 470| 472| 680| 690| 890| 901| 1100| 1100
60| 59| 270| 268| 480| 483| 690| 700| 900| 911| 1110| 1110
70| 70| 280| 278| 490| 493| 700| 711| 910| 920| 1120| 1119
80| 80| 290| 288| 500| 504| 710| 721| 920| 930| 1130| 1128
90| 90| 300| 298| 510| 514| 720| 731| 930| 940| 1140| 1137
100| 100| 310| 308| 520| 524| 730| 741| 940| 949| 1150| 1146
110| 110| 320| 318| 530| 535| 740| 751| 950| 959| 1160| 1155
120| 120| 330| 328| 540| 545| 750| 762| 960| 969| 1170| 1164
130| 130| 340| 339| 550| 556| 760| 772| 970| 978| 1180| 1173
140| 140| 350| 349| 560| 566| 770| 782| 980| 988| |
150| 150| 360| 359| 570| 576| 780| 792| 990| 997| |
D – 93128 Regenstauf, Hans-Sachs-Straße 26
Fon: 0049-9402 / 8500
Fax: 0049-9402 / 1829
References
Read User Manual Online (PDF format)
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