Wika LH-10 Manual do Utilizador descarregar pdf (Página 9)

9WIKA operating instructions submersible pressure transmitter, model LH-10

14075011.01 08/2013 GB/D/F/E

Output signals

Signal type Signal

Current (2-wire) 4 ... 20 mA

Current (3-wire) 0 ... 20 mA

Voltage (3-wire) DC 0 ... 5 V

DC 0 ... 10 V

DC 0.5 ... 2.5 V

Power supply

The power supply depends on the selected output signal.

■

4 ... 20 mA: DC 10 ... 30 V

■

0 ... 20 mA: DC 10 ... 30 V

■

DC 0 ... 5 V: DC 10 ... 30 V

■

DC 0 ... 10 V: DC 14 ... 30 V

■

DC 0.5 ... 2.5 V:

5 ... 30 V (suitable for battery

operation)

Ingress protection (per IEC 60529)

IP 68

Permissible temperature ranges

■

Fluid

- PUR cable: -10 ... +50 °C

- FEP cable: -10 ... +85 °C

■

Ambient: -10 ... +50 °C

■

Storage: -30 ... +80 °C

Submersion depths

■

Submersible pressure

transmitter with FEP cable: up to 100 m

■

Submersible pressure

transmitter with PUR cable: up to 300 m

CE conformity

EMC directive 2004/108/EC, EN 61326 emission (group 1,

class B) and immunity (industrial application)

For special model numbers, e.g. LH-10000, please note the specications stated on the delivery note.

For further specications see WIKA data sheet PE 81.09 and the order documentation.

4. Design and function

4.1 Description

The prevailing pressure is measured at the sensor element through the deformation of a diaphragm. By supplying

power, this deformation of the diaphragm is converted into an electrical signal. The output signal from the pressure

transmitter is amplied and proportional to the prevailing pressure.

4.2 Scope of delivery

Cross-check scope of delivery with delivery note.

3.Specications/4.Designandfunction

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