Emerson CSI 9420 Dokumentacja Pobierz pdf (Strona 76)

Reference Manual

MHM-97408, Rev. 2

June 2008

CSI 9420

C-8

f_maintenance

= T

f_fault

- 10 °C

f_advisory

= T

f_fault

- 20 °C

Error Indications and Steady-state Determination

1. Do not use any data readings collected within 30 seconds of motor

start up

2. Check for error indications

• If T

> 150 °C, the sensor is shorted

• If T

< -40 °C, the sensor is open or wire is broken.

3. Steady State is defined to have been reached when over any 5

minute time interval, the maximum variation in temperature is less

than 2 °F.

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Emerson CSI 9420 Dokumentacja Strona 76