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GF Signet 8450 Pressure Transmitter User Manual

Page 6

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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.