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Appendix c: analog input 4-20ma reference chart – RLE Falcon EM User Manual

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User Guide: Falcon FMS

Analog Input 4-20mA Reference Chart

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APPENDIX C: ANALOG INPUT 4-20MA REFERENCE CHART

Analog 4-20Ma Gain/Offset Conversion Formula:

Gain = Sensor Range (High Value – Low Value) / 4
Offset = Sensor Low Value – Gain

Example: TH140 Humidity

Gain = (High Value (100) –Low Value (0)) / 4 = 25
Offset = (Sensor Low Value (0) – Gain (25)) = -25

Table C-1: Analog Input 4-20mA Reference Chart

RLE PRODUCT #

TRANSDUCER TYPE

RANGE

GAIN

OFFSET

TEMPERATURE

TH140

Temperature (Display in Deg F)

Temperature (Display in Deg F)

Temperature (Display in Deg C)

Temperature (Display in Deg C)

Humidity

50°F - 95°F

32°F - 122°F

50°F - 95°F

32°F - 122°F

0% - 100% RH

11

22

6

13

25

39

10

4

-13

-25

T120

Temperature (Display in Deg F)

Temperature (Display in Deg F)

Temperature (Display in Deg C)

Temperature (Display in Deg C)

50°F - 95°F

32°F - 122°F

50°F - 95°F

32°F - 122°F

11

22

6

13

39

10

4

-13

CURRENT

CT55

Current

0 – 5 Amps
0 – 55 Amps

1
13

-1
-13

CT20

Current

0 – 30 Amps
0 – 60 Amps
0 – 120 Amps

7
15
30

-7
-15
-30

CT200

Current

0 – 20 Amps
0 – 200 Amps

5
50

-5
-50

CT300

Current

0 – 100 Amps
0 – 300 Amps

25
75

-25
-75