20
…7
PROGRAMMING AND ELECTRICAL CALIBRATION
1 5 0
Adj. A1 Setpoint
A1 Action EB
– – – – –
EA
SET UP OUTPUTS
– – – – –
A2 Action EB
– – – – –
EA
Adj. A2 Setpoint
5 0
RTX Type 4-20
0-20
0-10
– – – – –
.
Test Retrans (%)
.
0
.
0
7.4
Set Up Outputs Page
– press to advance to next parameter
or
– press to advance to Electrical Calibration Page, Section 7.7.
These two switches are used to advance to all subsequent parameters and pages. If a
parameter is changed it is automatically stored on operation of either switch.
Alarm 1 Action
For ‘Fail-safe’ alarm operation the relay’s alarm state must be the same as the power-
down state, i.e. the relay is de-energised.
For high alarm operation the relay must be Energised Below the alarm set point (EB).
For low alarm operation the relay must be Energised Above the alarm set point (EA).
The alarm l.e.d.s are illuminated in the alarm condition.
Select the required alarm 1 action from the following table:
The set point band is defined as the actual value of the set point plus or minus the
hysteresis value. The hysteresis value is
±
1% of the full span value displayed in the Set
Up Parameter Page – see Section 7.3. Alarm action occurs if the input value is above or
below the set point band. If the input moves within the set point band the last alarm action
is maintained.
Alarm 1 Set Point
The alarm 1 set point can be set to any value within the input range being displayed. The
set point value is subject to hysteresis as detailed above.
Set the alarm set point to the required value.
Alarm 2 Action
Repeat as for Alarm 1 Action above.
Alarm 2 Set Point
Repeat as for Alarm 1 Set Point above
Retransmission Output Assignment
Select current output (mA).
Continued on next page.
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