Vaisala HMP260 - Manual (Page 11)

HMP260 SERIES
HMP260-U017en-1.5 Operating Manual
1997-11-25 5
3.2. Mounting
HMP263/264/265
(EEx ia) IIC SAFE AREA HAZARDOUS AREA
EEx ia IIC T3/T4
HMP263 sensor head .
HMP264 sensor head
for pressurized spaces
HMP265 sensor head
Supply voltage 24 VDC
Analog outputs (mA/V)
RS 232C/ RS 485 /digital current loop
Fig. 3.1 Examples of sensor head mounting
The lead-throughs must be sealed properly to avoid air flowing in or out from
the channel. The sealings must fulfil EEx requirements. When using the
support bar with the HMP263, the lead-through piece must be sealed e.g. with
silicon. See also Appendix 8.
133
104
Ø 6.5
Fig. 3.1 Mounting holes in the HMP260 transmitter housings