Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
ON/OFF
Differential
5
Switching differential for
one output (Diff 1 or
Diff 2) or both outputs
(Diff) set to ON/OFF
control (PB1, PB2 or both
set to 0%)
0.1% to 10% of input span.
Default = 0.5%.
Setpoint High
Limit
6
Maximum limit for
setpoint adjustment.
Should be set to a value
which prevents setpoint
values causing damage
to the process.
Current setpoint value to Input
Range Maximum.
Default = Input Range Maximum
Setpoint Low
Limit
6
Minimum limit for setpoint
adjustment. Should be
set to a value which
prevents setpoint values
causing damage to the
process.
Input Range Minimum to current
setpoint value.
Default = Input Range Minimum
Motor Travel
Time
11
Time taken for valve to
travel from one end stop
to the other.
5 seconds to 5 minutes.
Default = 1 minute
Minimum
Motor ON
Time
11
Minimum drive effort
required to initiate
movement in a stationary
valve.
0.0 seconds to Motor Travel Time
plus 10 seconds.
Default = 1 minute.
Recorder
Output Scale
Maximum
7
The value of the process
variable or setpoint (as
applicable) for which the
recorder output is at a
maximum.
−1999 to 9999 (decimal point as
for the process variable input
range).
Default = Input Range Maximum
Recorder
Output Scale
Minimum
7
The value of the process
variable or setpoint (as
applicable) for which the
recorder output is at a
minimum.
−1999 to 9999 (decimal point as
for the process variable input
range).
Default = Input Range Minimum
Output Power
Limit
3
Limits the power level of
Output 1 (used to protect
the process).
0% to 100%
Output 1 Cycle
Time
8
Limits the frequency of
operation of output relay
to maximise relay life.
0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256
or 512 seconds.
Default = 32 seconds
Output 2 Cycle
Time
8
Limits the frequency of
operation of output relay
to maximise relay life.
0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256
or 512 seconds.
Default = 32 seconds
Process High
Alarm 1 Value
If Alarm 1 is a Process
High Alarm, the value of
the process variable at or
above which Alarm 1 will
become active (see
Figure 9-2).
Input Range Maximum to Input
Range Minimum.
Default = Input Range Maximum.
9-3