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Wohler IR Hygrotemp 24 Manual

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Wöhler IR Hygrotemp 24
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
The Measure of Technology
Contents
1.
Specification .............................. 19
2.
Operation ................................... 21
3.
Parameter Setting ...................... 24
4.
Battery ....................................... 25
6.
Troubleshooting ......................... 26
7.
Calibration ................................. 27
8.
Tables: Emisivity ........................ 28
9.
Information on disposal ............. 30
11. Guarantee and Service .............. 31

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  • Page 1: Table Of Contents

    Wöhler IR Hygrotemp 24 Contents Specification ......19 Operation ........21 Parameter Setting ...... 24 Battery ........25 Troubleshooting ......26 Calibration ......... 27 Tables: Emisivity ......28 Information on disposal ..... 30 10. Declaration of Conformity ..30 11. Guarantee and Service ....31 Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176...

  • Page 2: Specification

    1.2 Aplication The IR Hygrotemp 24 is a handy, handheld instrument designed to provide a variety of critical atmospheric measurements for Indoor Air Quality. It mea- sures humidity, air temperature, dew point, wet bulb, surface temperature and differential temperature.
  • Page 3 1. Specification Wöhler IR Hygrotemp 24 Dew point: Dew point range: -68 to 49.9 °C (-90.4 to 122 °F) Resolution: 0.1°C Wet bulb range: Wet bulb range: -21.6 to 49.9 °C (- 69 to 122 °F) Resolution: 0.1°C Emissivity: 0.30...0.99 continuously adjustable Response time: 500 msec.

  • Page 4: Operation

    2. Operation Wohler IR Hygrotemp 24 Operation 2.1 Display Figure 2.1 shows the different functions that appear in the display: Surface temperature Emissivity - 888.8 °c - 188.8 °F IR indicator Air temperature, dew point or wet bulb tem­ Battery indica Hurni 88.8 %...
  • Page 5 2. Operation Wöhler IR Hygrotemp 24 The keys have the following functions: MEAS - Key Press to measure surface temperature by activating IR function. Release to hold the surface temperature value. Press MEAS and LASER at the same time to inactivate or activate targe- ting function.
  • Page 6 2. Operation Wöhler IR Hygrotemp 24 2.3. Measuring Press to retract the sensor before operation. Turn the meter on by pressing SET. You also can turn on the meter by pressing MEAS if you want to measu- re the IR temperature. In that case the Laser will be deactivated for secu- rity reasons.

  • Page 7: Parameter Setting

    Wöhler IR Hygrotemp 24 3. Parameter Setting Parameter Setting 3.1 Auto-Off-time setting The unit will turn itself off after 5 minutes . The auto power off time frame is adjustable from 5 to 600 seconds. While the meter is on, press the SET-key to enter setting procedure.

  • Page 8: Battery

    Wöhler IR Hygrotemp 24 4. Battery Battery The battery symbol will appear on display at the left bottom corner when the power is low. Failure to replace batteries will have an effect on the accuracy of the readings. To change the batteries: 1.

  • Page 9: Troubleshooting

    Wöhler IR Hygrotemp 24 5. Troubleshooting Troubleshooting Power on but no display. Make sure the time of pressing SET is more than 0.1 second. Check the batteries are in place and in good contact with correct polarity. Replace a new battery and try again.

  • Page 10: Calibration

    Wöhler IR Hygrotemp 24 5. Troubleshooting Bottom display E1 Circuit error in relative humidity measurement channel. Return to dealer for repairing. Bottom display E5 Circuit error in relative humidity measurement channel. Return to dealer for repairing. Calibration Send the Wöhler IR Hygrotemp regularily to the factory for calibration, depen- ding on the frequency of use.

  • Page 11: Tables: Emisivity

    7. Emisivity-tables Wöhler IR Hygrotemp 24 Tables: Emisivity 7.1 Metals Material Emisivity Material Emisivity (8 - 14 µm) (8 - 14 µm) aluminium Molybdenum non oxidized oxidized 0,02-0,10 0,20-0,60 oxidized non oxidized 0,20-0,40 0,10 alloy A3003 nickel oxidized oxidized 0,30...
  • Page 12 7. Emisivity-tables Wöhler IR Hygrotemp 24 7.2 Nonmetals Material Emisivity Material Emisivity (8 - 14 µm) (8 - 14 µm) asbestos 0,95 asphalt 0,95 basalt 0,70 beton 0,95 0,98 ice bath 0,95 earth colour non alcaline 0,92 0,90-0,95 0,95 gypsum...

  • Page 13: Information On Disposal

    8. Information on disposal Wöhler IR Hygrotemp 24 8. Information on disposal You may hand in any defective batteries taken out of the unit to our company as well as to recycling places of public disposal systems or to selling points of new batteries or storage batteries.

  • Page 14: Guarantee And Service

    9. Service Wöhler IR Hygrotemp 24 Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...

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