Super Systems 20PQ - Manual (Page 142)

138
ON THE AUXILIARY INPUT
When the remote set point trim signal exceeds the full scale
value programmed by "A.In.t" [C.d10], an OVERRANGE
condition will be shown on the lower display as shown in the
following figure:
When the remote set point signal is lower than the initial scale
value programmed by "A.In.t" [C.d10], an UNDERRANGE
condition will be shown on the lower display as show in the
following figure:
These instruments are capable to detect, on the auxiliary input,
the sensor leads break condition.
When the sensor leads break condition is detected, the
instrument shows “OPEn” on the lower display.
NOTE: the leads break condition can be detected only if the
selected range has a zero elevation (4/20 mA or 1/5 V or
2/10 V).
NOTES:
1) The fault conditions on the auxiliary input will be displayed
only if the related indication has been selected (see "Display
function" at pages 106 and 132).
2) When a fault condition different from overrange or underrange
is detected on the auxiliary input, the alarms, the power
output and the analog retransmissions operate as in presence
of an underrange condition.
OTHER
The device is also capable to detect an RJ error (E.502), an
internal auto-zero error (E.500) and an internal zero integrator
measurement error (E.501).
When a fault condition different from overrange or underrange is
detected, the instrument (alarms, power output, analog
retransmissions etc.) operate as in presence of an overrange
condition.
XKP-1-C2.p65 10/30/01, 9:37 AM 138