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HMD70U/Y Transmitters

U303en-1.1 Operating Manual

1997-07-31 11

6.3 General

Supply voltage range depends on the selected output signal.

When AC supply is used, an isolated source is recommended.

The current outputs require an optional output module,

part no.18945HM.

DC AC

0...1 V 10...35 V 9...24 V

0...5 V 14...35 V 12...24 V

0...10 V 19...35 V 16...24 V

0...20 mA (R

= 0 Ω) 10...35 V 11...24 V

0...20 mA (R

= 500 Ω) 20...35 V 17...24 V

Factory setting 0...1V. Other outputs selectable by jumper connections.

An output change causes an error which is less than 0.5 %RH

without recalibration.

Operating temperature range:

electronics -5...+55 °C

sensor head -40...+80 °C

Storage temperature range -40...+80 °C

Housing:

sensor head stainless steel

electronics housing cast aluminium

Cable glands

bushing for 7...10 mm (PG9) cable

(housing IP65/ NEMA 4),

part no 18941HM

or armoured cable glands part no 10528HM

Sensor protection:

standard membrane filter

(part no. 17039HM)

option stainless steel sintered filter

(part no. HM46670)

Connections screw terminals 0.5...1.5 mm

1 2 ... 10 11 12 13 14 15 16 17 18

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