Campbell AVW1 Instrukcja Użytkownika Pobierz pdf (Strona 9)

CR10 and VW Sensors, 2002/12/18 7

Instruction 4

for Thermistors and RTDs

Reading Thermistors

1. Use instruction 4 to read the thermistor.

02 - Range Option: Enter 25 (60 Hz rejection, 2500 mV

range)

05 - Delay (units .01 sec): Enter 1

06 - mV Excitation: Enter 2500

08 - Mult: Enter .001

09 - Offset: Enter 0

2. Then use instruction 55 to apply factors to convert the read-

ing to °C.

04 - C0: Enter -104.78

05 - C1: Enter 378.11

06 - C2: Enter -611.59

07 - C3: Enter 544.27

08 - C4: Enter -240.91

09 - C5: Enter 43.089

Reading the RTD

1. Use instruction 4 to read the RTD.

02 - Range Option: Enter 25 (60 Hz rejection, 2500 mV

range)

05 - Delay (units .01 sec): Enter 2

06 - mV Excitation: Enter 2500

08 - Mult: Enter .001

09 - Offset: Enter 0

2. Then use instruction 55 to apply factors to convert the read-

ing to °C.

04 - C0: Enter 2412.6

05 - C1: Enter -3442.5

06 - C2: Enter 1904.4

07 - C3: Enter -435.97

08 - C4: Enter 0

09 - C5: Enter 0

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Campbell AVW1 Instrukcja Użytkownika Strona 9