Installation
2.3.5 Thermocouple input
The WL-TX-900 provides one input suitable for connection to a thermocouple or a
millivolt level signal. The module provides linearisation tables for J, K and T type
thermocouples and also supports other types via a user linearisation table.
Millivolt signals in the range -10mV to +100 mV are supported.
For more information on configuring the thermocouple input and cold-junction
compensation to suit your application, see the Configuration Software section.
2.3.6 Analog output
The WL-RX-900 module provides a 4 - 20 mA analog output for connecting to
instrument indicators to display remote analog measurements. The analog output is a
current source provided from an internally gen24V loop supply.
Zener protection of analog outputs provides protection against short periods of
over-voltage; however longer periods may still result in module damage.
You can configure the analog output to turn off (i.e. 0 mA) if no command message is
received to the output for a certain period.
NOTE
26
