Micronics U1000MKII-FM, User Manual

Page: 23 / 56

Micronics U1000MKII User Manual
Issue 3.1 July 19 Page 19
2.7 Connect Electronics Module
1. Ensure that the power is switched off.
2. Connect the Electronics Module (wired as described on page 7). The two leads can be
connected either way round.
IMPORTANT: DO NOT CLIP THE ELECTRONICS MODULE ONTO THE SENSOR ASSEMBLY
UNTIL YOU HAVE CHECKED OPERATION.
Figure 21 Connecting the Electronics Module
2.8 Attach the Temperature Sensors (U1000MkII-HM Only)
IMPORTANT: THE TEMPERATURE SENSORS MUST BE BALANCED BEFORE INITIAL USE,
USING THE PROCEDURE DESCRIBED BELOW AND USED WITH THE CABLE LENGTH
SUPPLIED. EXTENDING OR SHORTENING THE CABLES WILL NEGATE THE CALIBRATION
OF THE SENSORS.
The temperature sensors must be located at the input and output of the system that is being
monitored. The area of pipe where they are to be attached must be free of grease and any
insulating material. It is recommended that any coating on the pipe is removed so that the sensor
has the best possible thermal contact with the pipe.
The sockets on the Electronics Module are marked Hot and Cold (see Figure 22). This defines the
location of the temperature sensors on installations where heat is being extracted from the system.
Figure 22 Temperature Sensor connectors on the Electronics Module