Vaisala HMP230 - Manual (Page 80)

HMP230 SERIES
User's Guide
M210225en-B
74
9.6. Electronics
User interface 3 keys and 4 LEDs inside the
housing or local display keypad
Display 2 x 16 character alphanumeric
high-contrast, wide view angle
LCD
character height 3.85 mm (0.15")
Keyboard 1 x 4 keypad
Connections screw terminals, 0.5 mm 2 wires
(AWG 20), stranded wires
recommended
Operating voltage 24 VDC (20...28 V)
24 VAC (see page 23)
115/230 VAC with power supply
module (not with the HMP231)
Power consumption: 100 mA maximum (24 VDC)
during re-gaining 180 mA maximum (24 VDC)
of the alarm output module 55 mA maximum (24 VDC)
Recommended external load for
current outputs
<500
Ω
0...1 V voltage output >2 k
Ω
(to ground)
0...5 and 0...10 V voltage outputs >10 k
Ω
(to ground)
Operating temperature (electronics) -40...+60 °C
with display cover 0...+50 °C
with power supply module -40...+45 °C
with alarm outputs up to 8 A -40…+40
°
C
with alarm outputs up to 6 A …+60
°
C
Storage temperature -40...+70 °C