Extech Instruments RH490 Operation & User’s Manual

Operation & User’s Manual for Extech Instruments RH490 Thermometer (6 pages)

Specifications:

240/240924-rh490.pdf file (22 Sep 2023)
  • Manufacturer: Extech Instruments
  • Category of Device: Thermometer
  • Document: RH490, File Type: PDF Operation & User’s Manual
  • Updated: 22-09-2023
  • Count of Pages: 6
Download RH490 Manual (6 pages)

Read PDF Document Online:

Data: UPD 22nd September 2023

Extech Instruments RH490 Thermometer PDF Operation & User’s Manual (Updated: Friday 22nd of September 2023 11:43:10 PM)

Rating: 4.3 (rated by 10 users)

Compatible devices: TM40, IR301, AN200, 401014A, 445580, 392050, RH101, SDL200.

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Text Version of Extech Instruments RH490 Thermometer Manual (Summary of Contents)

(Ocr-Read of Extech Instruments RH490 Document (Main Content), UPD: 22 September 2023)

  • 2, RH490-EU V2.0 12/06 2 Introduction Congratulations on your purchase of the Extech RH490 Precision Hygro- Thermometer. This device measures Humidity, Air Temperature, Dew Point temperature, Wet Bulb temperature and Grains of Water Vapor Per Pound of Air. Advanced features …

  • 3, RH490-EU V2.0 12/06 3 Operation Power Press the power button “ “ to turn power on or off. %RH 1. To select %RH measurement, press the “%RH/GPP/g/Kg” button. 2. Hold the probe in the area to be tested. 3. Allow adequate time for readings to stabilize. 4. …

  • 4, Extech Instruments RH490 RH490-EU V2.0 12/06 4 Dew Point 1. To select the Dew Point measurement, press the “°F/°C/WBT/Dew Point” button until DEWPOINT (°F or °C) appears in the lower right. 2. Dew Point temperature is now displayed. Wet Bulb 1. To select the Wet Bulb measurement, press th…

  • 5, RH490-EU V2.0 12/06 5 Minimum (MIN) Maximum (MAX) Function The MIN/MAX mode allows the user to view only the lowest (MIN) or highest (MAX) readings. 1. Press the ”H MAX MIN” button twice and “MIN” appears on the display. The LCD is now displaying the minimum value recorded in…

  • 6, RH490-EU V2.0 12/06 6 Specifications Function Range and Resolution Accuracy Humidity 0.0 to 10.0%RH ±3%RH 10.0 to 90.0%RH ±2%RH 90.0 to 100.0%RH ±3%RH Temperature -22.0 to – 3.9 o F -30.0 to -19.9 o C ±2.7 o F ±1.5 o C -20.0 to 70.0 o C -4.0 to 158.0 o F ±1 o …

DOC-d16eeb3e:

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