RLE FMS V.1.13 - Manual (Page 189)

rletech.com FMS User Guide 189
A
P P E N D I X
C HAPTER 0
A
NALOG
I
NPUT
4-20
M
A R
EFERENCE
C
HART
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
RLE
Product # Transducer Type Range Gain Offset
TEMPERATURE
TH140 Temperature (Display in Deg F) 32°F - 120°F 22 10
Temperature (Display in Deg C) 0°C - 48.8°C 12.2 -12.2
Humidity 0% - 100% RH 25 -25
T120 Temperature (Display in Deg F) 32°F - 122°F 22 10
Temperature (Display in Deg C) 0°C - 48.8°C 12.2 -12.2
CURRENT
CT55 Current 0 - 5 Amps 1 -1
0 - 55 Amps 13 -13
CT20 Current 0 - 30 Amps 7 -7
0 - 60 Amps 15 -15
0 - 120 Amps 30 -30
CT200 Current 0 - 20 Amps 5 -5
0 - 200 Amps 50 -50
Table C.1 Analog Input 4-20mA Reference Chart