NDC BETA LaserMike LaserSpeed Pro 8500-4, Instruction Handbook Manual

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LaserSpeed Pro 8500-4 Instruction Handbook: Interfacing with the LS8500-4 4-43
4.5.2 Thermostat Interface
In order to extend the ambient temperature range of LaserSpeed gauges, you can provide water or air cool-
ing/heating. This is often accomplished by connecting the gauge to a recirculating heater/chiller, but can also
be accomplished by using the gauge's thermostat output. LaserSpeed gauges monitor their internal tempera-
tures, and can provide an output indicating when cooling/heating is required. This output can be connected to
a valve or a PLC in order to control the flow of coolant. The thermostat output is available as an alternate
configuration of the Index Pulse, the High Speed Pulse Output (Phase B), and the User Scalable Pulse Out-
put (Phase B.)
Output How To Configure Output Pin Voltage Level
Index
Pulse
Set
Index Pulse Output Function
to
Thermostat Output
DB25/DB37 pin
22
5-24V, depending on
User Input Voltage
High
Speed
Pulse
Set
High Speed Pulse Output
Configuration
to either:
System Ready/Thermostat
Output or Valid/Thermostat
Output
DB25/DB37 pin
7 &
DB25/DB37 pin
9
RS-422 Output
(2V-5V Differential)
User Scal-
able Pulse
Set
User Scalable Pulse Output
Configuration
to either:
System Ready/Thermostat
Output or Valid/Thermostat
Output
DB25/DB37 pin
6
5-24V, depending on
User Input Voltage