Heinrichs Messtechnik GmbH
Page 18 of 31
Ex-Supplement operating manual
UMC4 with TM/TMU/TME/TMR/TM-SH
4.5.4.4
Signal output circuits with Ex ia II type of protection
Passive current output 1 (terminals 11-12) and
Passive current output 2 (terminals 13-14) with Ex ia IIC type of protection
Voltage
Ui
DC
30
V
Current
Ii
150
mA
Power
Pi
1,3
W
Internal inductance Li
0,1
mH
Internal capacitance Ci
20
nF
Binary outputs
Passive binary output 1 (terminals 16 - 17)
Passive binary output 2 (terminals 19
–
20)
Potential free opto coupler-output current with Ex ia IIC type of protection
Voltage
Ui
DC
30
V
Current
Ii
200
mA
Power
Pi
3
W
Effective internal inductance Li
negligible
Effective internal capacitance
Ci
negligible
4.5.4.5
Ambient temperature range
Ta
For type UMC4-B***** (compact version)
As a function of process temperature, way of installation and temperature class according to the
following table:
Process temperature
- 20 °C up to
Ambient temperature
- 20 °C up to
Temperature class
100 °C
60 °C
T4
130 °C
55 °C
T4
150 °C
50 °C
T3
For the types UMC4-D***** and UMC4-E***** (remote version).
If the transmitter is installed remote from the process, the ambient temperature range is -20°C to +60 °C.
