Emerson Fisher FIELDVUE DVC6000, Инструкция по эксплуатации

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Calibration
September 2013 5-11
Figure 5-5. Relay A Adjustment (Shroud Removed for Clarity)
ADJUSTMENT DISC
FOR SINGLE-ACTING DIRECT RELAYS:
ROTATE ADJUSTMENT DISC IN THIS
DIRECTION UNTIL IT CONTACTS THE
BEAM
FOR DOUBLE-ACTING RELAYS:
ROTATE ADJUSTMENT DISC IN
THIS DIRECTION TO DECREASE
OUTPUT PRESSURE
FOR DOUBLE-ACTING RELAYS:
ROTATE ADJUSTMENT DISC IN
THIS DIRECTION TO INCREASE
OUTPUT PRESSURE
W9034
If the low bleed relay option has been ordered
stabilization may take approximately two minutes
longer than the standard relay.
Relay A may also adjusted for use in single-acting-
direct applications. Rotate the adjustment disc as
shown in figure 5-5 for single-acting direct operation.
Single-Acting Relays
WARNING
If the unused port is monitoring
pressure, ensure that the pressure
source conforms to ISA Standard
7.0.01 and does not exceed the
pressure supplied to the instrument.
Failure to do so could result in
personal injury or property damage
caused by loss of process control.
Single-Acting Direct Relay
The single-acting direct relay is designated by “Relay
C” on a label affixed to the relay itself. Relay C
requires no adjustment.
Single-Acting Reverse Relay
The single-acting reverse relay is designated by
“Relay B” on a label affixed to the relay itself. Relay B
is calibrated at the factory and requires no further
adjustment.
Restoring Factory Settings (1-3-4)
From the Online menu, select Configure, Calibrate,
and Restore Factory Settings. Follow the prompts on
the Field Communicator display to restore calibration
to the factory settings. You should only restore the
calibration if it is not possible to calibrate an individual
sensor. Restoring calibration returns the calibration of
all of the sensors and the tuning set to their factory
settings. Following restoration of the factory
calibration, the individual sensors should be
recalibrated.
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