Vaisala HMT310 - Manual (Page 89)

Chapter 7 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 89
Table 21 Electrical Connections
Property Description / Value
Two analog outputs:
selectable and scalable
Current: 0…20 mA or 4…20 mA
Voltage: 0 … 5 V, or 0 … 10 V
(1 ... 5 V available through scaling)
Typical analog output accuracy at +20 °C ±0.05% of full scale
Typical temperature dependence of
analog output
0.005%/°C (0.003%/°F) of full scale
Serial output RS232
Cable feed through alternatives M12 8-pole connector with 5 m cable
or
Female 8-pin connector screw joint for
cable diameter 4 ... 8 mm
Operating voltage RS232 output 10 … 35 VDC
Analog output 15 … 35 VDC
Purge and heating 15 … 35 VDC
Pressures over 10 bara min 24 VDC
Power consumption
(Vsupply=35VDC)
RS232: 12 mA
Uout 10 V (10 kOhm)
Channel1 & Channel 2: 12 mA
Iout 20mA (load 511 Ohm)
Channel 1 & Channel 2: 50 mA
Power consumption, maximum pulsed
current (Vsupply=24VDC)
Purge: + 220 mA
Warmed probe: + 240 mA
Fuel cell: + 350 mA
External load R
L
< 500 ohm
Startup time after powerup 3 s with analog output, 5 s with serial
line
Table 22
General
Property Description / Value
Transmitter housing material G-AlSi10Mg
Transmitter base material PPS
Housing classification IP66
Sensor protection PPS grid with stainless steel net
PPS grid
Sintered filter
Membrane stainless steel filter
Stainless steel grid
Catalytic filter
Operating temperature range for
electronics
-40 ... +60 °C (-40 ... +140 ºF)
Storage temperature -55 ... +80 °C (-67 ... +176 ºF)
Pressure range:
HMT314
HMT317
HMT318
0…100 bar
0…10 bar
0…40 bar
Probe cable length 2, 5 or 10 m
EMC standard Complies with EMC standard
EN61326-1, Industrial environment.