Edwards PGC201, Инструкция по эксплуатации

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D0300040001EN - Parameters
Page 32
Type of gas correction CPG (


)
The CPG gauge heads are normally calibrated for measurements in nitrogen or air. With the
aid of the parameter


you can set up the measurement channel to other types of gas.

For this proceed as follows:

Select the parameter


.

Press the pushbutton (PARA).

The setup characteristic is displayed.

Use the arrow pushbuttons to change the characteristic.

The value of the parameter is changed.
You can set up the correction factor for a gauge head in the range of 0.2 - 1.0 - 8.0. A setting
of 1.0 returns the uncorrected value.
Sensor switch-on type (

)
This parameter defines how the CPG gauge head is switched on.
You can set the switch-on time to the following values:
Sensor switch-on value (

)
This parameter will only appear when the sensor switch-on time has been set to

or

(see Sensor switch-on type (S-on) ).
Through the parameter t-on you can define a switch-on value. When the pressure in the
respective measurement channel drops below the switch-on value, the gauge head is
switched on.
Sensor switch-off type (

)
This parameter defines how the CPG gauge head is switched off.
You can set up the switch-off type to the following values:

Manual. The gauge head can be switched on by pressing the pushbutton (UP)
(see
Switching on ).

Externally through optocoupler (PLC compatible high-level > 13 V d.c.; 7 mA at
24 V d.c.).

Warm start. The sensor is switched on automatically upon switching on the
instrument. After a power failure the measurement is started automatically.

Through measurement channel PRG 1. With the aid of the next parameter t-on
the operator can define a switch-on value. When the pressure in the
measurement channel PRG 1 drops below the switch-on value, the sensor is
switched on.

Through measurement channel PRG 2. With the aid of the next parameter

the operator can define a switch-on value. When the pressure in the
measurement channel PRG 2 drops below the switch-on value, the sensor is
switched on.