Wika IPT-11 Manual do Utilizador descarregar pdf (Página 48)

Protection

- unassembled IP 20

- mounted into the sensor without cover IP 40

Materials

- Housing ABS

- Inspection window Polyester foil

Power supply

Operating voltage

- Non-Ex instrument 14 … 36 V DC

- EEx-ia instrument 14 … 30 V DC

Operating voltage with lighted indicating and adjustment module

- Non-Ex instrument 22.5 … 36 V DC

- EEx-ia instrument 22.5 … 30 V DC

Permissible residual ripple

- < 100 Hz U

< 1 V

- 100 Hz … 10 kHz U

< 10 mV

Load see diagram

1000

750

500

250

1816 20 22 24 26 28 30 32 34 36

Ω

Fig. 21: Voltage diagram

1 HART load

2 Voltage limit EEx-ia instrument

3 Voltage limit non-Ex instrument

4 Operating voltage

48 Process pressure transmitter IPT-1* Vers. 3.0 - metalic sensor • 4 … 20 mA/HART

10 Supplement

31543-EN-090130

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Wika IPT-11 Manual do Utilizador Página 48