Vaisala HMP230 User Manual
Page 8
HMP230 SERIES
User's Guide
M210225en-B
2
Options
Calculation vari-
ables
dewpoint temperature, mixing ratio, absolute hu-
midity, wet bulb temperature, enthalpy
Power supply
24 VDC (standard), (for 24 VAC, see page 23)
115/230 VAC
Serial interface
RS 232C (standard), RS 485/422, current loop
Display cover
cover with or without local display & keypad
Filters
sintered filter, PPS grid with steel netting, PPS grid
Cable length
2, 5 or 10 metres
Alarm output unit
Not with 115/230 VAC power supply and not with
HMP231
Cable connectors
For 24 VDC supply, for analogue outputs, for RS
232C line and for RS 485 single loop line; see
Appendix 8 for details
Installation aids
HMP233: installation kits for +80 °C and +120 °C
cables
HMP234: NPT conical pipe threaded fitting body
(1/2 - 14 NPT)
HMP235: steel and aluminium flanges
HMP237, installation kit for duct mounting
HMP238: ball valve set