53
6.7.4 MTL5576-THC - Temperature Converter
Two channel, mV/THC input
The MTL5576-THC converts low-level dc signals from temperature sensors mounted in
a hazardous area, into 4/20mA currents for driving safe-area loads. The hazardous area
connections include cold-junction compensation and do not need to be ordered separately.
Performance features, including linearisation for standard thermocouple types, ranging,
monitoring, testing and tagging are selected using
PCS45 software, which is
loaded onto a
personal computer and
connected via the PCL45USB serial link - see Section 6.9
.
Top label
Use the following LED information to understand the module status.
Status PWR (green) FLT (red) STS(yellow)
Power ON ON
Insufficient voltage or Power OFF OFF
Communication in progress FLASH
Normal working ON OFF OFF
Device failure ON ON
Channel 1 - Sensor failure/Error ON FLASH OFF
Channel 2 - Sensor failure/Error ON FLASH ON
Default configuration for both channels is as shown in 6.7 except S/C alarm set OFF.
Terminal Function
1
THC/mV (Ch1)
3 THC/mV (Ch1)
4 THC/mV (Ch2)
6 THC/mV (Ch2)
8 Output –ve (Ch2)
9 Output +ve (Ch2)
11 Output –ve (Ch1)
12 Output +ve (Ch1)
13 Supply –ve
14 Supply +ve
Hazardous area Safe area
Figure 6.30:
Top label
for MTL5576
To Next Page
Loading...