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Temperature Input  
The external temperature sensor allows more localised compensation of the 
measured distance due to changes in temperature. 
There are two models, Type A and Type B as follows: 
 
The temperature sensor should be placed close to the point of measurement.  
 
 
 
The unit is connected as follows: 
 
Temp Source (P1-852, P2-852), should be set to option 4 or 5 depending on 
the sensor range, set 4 for type A and 5 for type B (see above), the range is 
specified on the label of the sensor. 
 
RS232 Serial Interface 
If required,  you can connect  to  the  serial  interface, to  operate  your  Ultra 
Twin remotely.