Vaisala MMT310 - Manual (Page 68)

User's Guide _______________________________________________________________________
68 ___________________________________________________________________ M210474EN-C
Table 16 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 option available through
scaling)
Typical accuracy of analog output at
+20 °C (+68 °F)
±0.05% of full scale
Typical temperature dependence of
analog output
0.005%/°C (0.003%/°F) of full scale
Serial output RS232C
Connections 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
Pressures over 10 bara min 24 VDC
Power consumption
(Vsupply=35VDC)
RS-232: 12 mA
Uout 10 V (10kOhm) Channel1 &
Channel 2: 12 mA
Iout 20mA (load 511Ohm) Channel 1
& Channel 2: 50 mA
External load R
L
< 500 Ohm
Startup time after powerup 3 s with analog output, 5s with serial
line
Table 17 General
Property Description / Value
Operating temperature range for
electronics
40...+60 °C (-40 ... +140°F)
Storage temperature range -55...+80 °C (-67 ... +176 °F)
Pressure range:
MMT317
MMT318 (with ball valve up to 120 °C)
0 ... 10 bar
0 ... 40 bar
Transmitter housing material G-AlSI10Mg
Transmitter base material PPS
Housing classification IP 66
Cable feed through alternatives 8-pole connector with 5 m cable
Female 8-pin connector screw joint for
cable diameter 4...8 mm
Sensor protection Stainless steel grid
Stainless steel grid for high flow rates
Cable length 2, 5 or 10 m
Sensor head dimensions length 170/400 mm, Ø 13.5 mm