PRO AIR TPK 21 LT, Functional Description And Operating Instructions

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13.5.3. Voltage supply from an external source of supply
119
Analog Interface 4….20 MA / 0…10 V
123
RS 485 Interface
Pin Colour Alarm Remarks
1 BN - brown 24 V Operating voltage conn24 V DC
2 WH - white RS_A Signal line A
3 BU - blue GND Power supply earth
4 BK - black RS_B Signal line B
5 GN/YE green/yellow GNB Signal earth
The RS 485 interface is not electrically isolated from the supply earth!
To supply power to the device, a mains adapter can be connected to Pin 1 (+) and Pin 2 (-)
Analog Interface 4….20 MA / 0…10 V
Pin Colour Alarm Remarks
1 BN - brown 24 V Operating voltage conn24 V DC
2 WH - white RS_A Voltage output 0…10 V
3 BU - blue GND Power supply earth
4 BK - black RS_B Current output 4…20 mA
5 GN/YE green/yellow GNB Signal earth
The analogue interface is not electrically isolated from the supply earth!
The current output is active, i.e. it delivers the signal current to earth and requires no
external supply
The voltage output is also active, i.e. it delivers the signal voltage to earth.
To supply power to the device, a mains adapter can be connected to Pin 1 (+) and Pin 3 (-)
The analogue interface is not electrically isolated from the supply earth!
The current output is active, i.e. it delivers the signal current to earth and requires no
external supply
The voltage output is also active, i.e. it delivers the signal voltage to earth.
To supply power to the device, a mains adapter can be connected to Pin 1 (+) and Pin 3 (-)
It is possible to supply the device with an external voltage source. This is usually the case in
applications where it is possible to obtain the supply voltage from a separate supply unit
(e.g. enclosure).
The nominal value of the supply voltage is 24 V DC. The TPK should be supplied with a
stabilised, short-circuit protected and surge-protected voltage source.
The power source of the pressure transducer must be from an energy-limited source (10
A max./30 V max.) and be safely separated from the mains. See EN 61010-1,
paragraph 9.4.
15.5.3. Voltage supply from an external source of supply
124
It is possible to supply the device with an external voltage source. This is usually the case in
applications where it is possible to obtain the supply voltage from a separate supply unit
(e.g. enclosure).
The nominal value of the supply voltage is 24 V DC. The TPK should be supplied with a
stabilised, short-circuit protected and surge-protected voltage source.
The power source of the pressure transducer must be from an energy-limited source (10
A max./30 V max.) and be safely separated from the mains. See EN 61010-1,
paragraph 9.4.
Pin Colour Alarm Remarks
1 BN - brown + Operating voltage conn24 V DC
3 BU - blue GND Earth
NOTE:
If the device is connected to an external voltage supply, the above-mentioned points
must be observed and checked.
Incorrect connection may damage the device.
NOTE:
If the device is connected to an external voltage supply, the above-mentioned points
must be observed and checked.
Incorrect connection may damage the device.