GF Signet 8450 Pressure Transmitter User Manual
Page 6
6
Signet 8450-3 Pressure Transmitter
Calibrate Menu
Menu items will repeat for Loop 2 and Output 2.
Display
(Factory settings shown)
Description
Switch ID
PSI
Reverses the identifi cation of Sensor inputs: Pressure 1 becomes identifi ed as Pressure 2,
Pressure 2 becomes identifi ed as Pressure1.
Use this function to make corrections if the sensors are in the wrong order for a DELTA
PRESSURE measurement.
Pressure Units:
psi >
Select Pressure units for both input channels: psi, bar or kPa.
Set:
Pressure1
Provides a maximum 5 psi offset to match 8450 to external reference.
Enter “-999” to restore the original Factory calibration value.
Changes to this setting will become effective when the display exits the Calibrate menu.
Set:
Pressure2
Loop 1 Source
Pressure1
Select the INPUT SIGNAL represented by this 4-20 mA output:
Pressure 1, Pressure 2, or Delta Pressure (Pressure1 - Pressure2.)
Loop 1 Range: psi
0.0 → 100.0
>
Check the 2450 Sensor instructions for the range capability of your sensor.
Be sure to modify this setting if you change the Pressure Units.
Output 1 Source
Pressure1
Select the INPUT SIGNAL represented by this Open Collector Output:
Pressure 1, Pressure 2, or the Delta Pressure (Pressure1 - Pressure2.)
Output1 Mode:
Low >
Select the desired mode of operation for the Open Collector output. Options available are
High or Low. The signal may be disabled (Off) if not used.
Output1 Setpnt:
10.0 psi
>
In Low or High Mode, the Open Collector output #1 will be activated when the pressure
reaches this value. Be sure to modify this setting if you change the Pressure Units.
Output1 Hys:
5
>
The Open Collector output will be de-energized at Setpoint ± Hysteresis, depending on High
or Low Setpoint selection.
Last CAL:
2-10-09
Use this “note pad” to record important dates, such as annual recertifi cation or scheduled
maintenance.