Owner's manual

Form 1571 (10.13) ©SOR Inc.
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The table below contains a short description of the four 815PT device variables.
Device Definition Table
Variables Value Default Unit
Primary Variable (PV) Pressure PSI
Secondary Variable (SV) Temperature Degrees Celcius
Tertiary Variable (TV) Loop voltage Volts
Feduciary Variable (FV) Dynamic n/a
Under normal operating conditions, the analog output signal of the 815PT will remain
between 4mA and 20mA. In the event that the pressure goes beyond the normal
operating range of the device or in a fault condition, the 815PT will indicate the
condition on the 4-20 mA loop. The table below summarizes the 815PT loop current
with the associated fault indication.
Fault Current Indication
Loop Current Description
3.6 mA Fault Indication (Configurable: 3.6 mA or 21.0 mA)
3.8 mA Low limit of output range
20.5 mA High limit of output range
21.0 mA Fault Indication (Configurable: 3.6 mA or 21.0 mA)
Device Variables and Fault Current Indicators
Con guration with HART Communicator
4-20 mA Output