MTL5581 - mV/Thermocouple Isolator

Temperature Input module
These modules accept inputs from low-level dc sources such as thermocouples or RTDs in hazardous
areas and converts them into 4/20mA signals to drive safe area loads.
Early burnout detection (EBD)
When EBD is selected, the resistance of the thermocouple circuit is monitored and an alarm is
raised when there is an increase of more than 50m. This enables preventative maintenance to be
conducted on the field installation before the thermocouple actually breaks.
Configuration using PCS45/PCL45USB
Use PCS45 software, in conjunction with the PCL45USB serial link, to configure these modules. Instructions
are contained within the software.

MTL5581 - mV/Thermocouple Isolator
Single channel, mV/THC input for low power signals
The MTL5581 takes a low-level dc signal from a voltage source in a hazardous area, isolates it,
and passes it to a receiving instrument located in the safe area. The module is intended for use
with thermocouples utilising external cold-junction compensation. A switch enables or disables the
safety drive in the event of thermocouple burnout or a cable breakage; a second switch permits the
selection of upscale or downscale operation as the application requires.