Home
/
Extech Instruments
/
RH490
/
User Manual

Extech Instruments RH490, User Manual

The Extech Instruments RH490 is a reliable and accurate humidity and temperature meter. Ensure proper usage by downloading the free User Manual from our website. This comprehensive manual provides detailed instructions for operating your RH490, making it easy to get the most out of this essential instrument.

Share

1
2
3
4
5
6
7

Page: 1 / 7

background image

User's Guide

Precision Hygro-Thermometer

Model RH490

1
2
3
...
»

Summary of Contents for RH490

Page 1: ...User s Guide Precision Hygro Thermometer Model RH490...

Page 2: ...10 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for...

Page 3: ...lb Dew Point button 5 Hold MIN MAX button 6 RH GPP g Kg Backlight button Note The battery compartment is located on the rear of the instrument Display Description 1 Relative Humidity 2 Dew Point 3 Wet...

Page 4: ...on toggles the lower display between Temperature F Temperature C Dew Point C Dew Point F Wet Bulb C and Wet Bulb F Mixing Ratio Grains Per Pound or Grams Per Kilograms 1 To select GPP or g kg measurem...

Page 5: ...BULB F or C appears in the lower right 2 Wet Bulb temperature is now displayed Temperature 1 To select the temperature measurement press the F C WBT Dew Point button until C or F appears in the lower...

Page 6: ...nd hold the light button until the backlight turns off Automatic Power OFF The meter has a default setting that automatically shuts the meter off after 10 minutes indicated by the symbol on the displa...

Page 7: ...to 80 C Dew Point 22 to 199 F 30 to 100 C Mixing Ratio 0 to 1120 GPP grains per pound 0 to 160 g kg grams per kilogram Calculated from RH and air temperature measurements Display Dual LCD Response Ti...

Reviews:

No comments

Related manuals for RH490

Brand: Taylor Pages: 18

Brand: Taylor Pages: 3

Brand: Taylor Pages: 2

Brand: Taylor Pages: 2

Brand: Velleman Pages: 2

Brand: Velleman Pages: 26

Brand: La Crosse Technology Pages: 6

Brand: CEBEK Pages: 3

Brand: Danfoss Pages: 12

Brand: Danfoss Pages: 84

Brand: White Rodgers Pages: 12

Brand: Danfoss Pages: 48

InfraScan IR 101TWC

Brand: La Crosse Technology Pages: 10

Brand: White Rodgers Pages: 4

Brand: Beok Controls Pages: 2

Brand: Sub-Zero Pages: 4

Brand: Beok Controls Pages: 4

Brand: Fluke Pages: 40

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands