Page 6 of 8 Revision 1.0 Mar 2020
ProReact EN Analogue Cable Test Kit Instructions
Document Ref. PACC-CTK
Operating Instructions
The ProReact EN Analogue Sensor Cable Test Kit can be used to carry out a functional test on a ProReact EN Analogue LHD system. The
test kit is designed to heat up between 1% and 3% of the sensor cable, simulating a real fi re or overheat condition. A typical test setup
is shown in Figure 4.
1. Determine the zone length of the sensor cable that is to be tested. If the zone length is not known, it can be calculated by dividing
the calibration resistance in kohms (which should be recorded on the label on the reverse of the controller lid) by 0.017.
For example, if the calibration resistance is 1.50kohms then the zone length is approximately 1.5 / 0.017 = 88m.
2. Based upon the zone length, select the most suitable heating cable:
1. Zone length between 50m to 125m
→
select ProMinder Red cable
2. Zone length between 100m to 350m
→
select ProMinder Blue cable
3. Zone length between 175m to 500m
→
select ProMinder Brown cable
3. Locate a suitable section of sensor cable to attach the heating cable to. A minimum of 1% of the sensor cable will need to be
heated but for the best test results, try and attach the heating cable to approximately 3% of the sensor cable. For example, if the
zone length is 88m as previously calculated, attach the ProMinder Red cable to 2.6m (3% of 88 metres) section of sensor cable. It is
acceptable to attach the heating cable to more than 3% of the sensor cable if possible.
4. The heating cable should be in close proximity to the sensor cable for the heat to transfer eff ectively. It is acceptable for the sensor
cable and heating cable to touch each other. To further aid in the heat transfer fi x pipe insulation around the heating cable and
sensor cable to prevent excessive heat loss during the test.
Not enough heat is generated by the heating cable to raise the
temperature of the sensor cable suffi ciently in order to trigger an alarm without the use of the pipe insulation.
5. The pipe insulation is provided in 450mm lengths so it can be fi xed between support brackets installed at the recommended
spacing.
Figure 4: Typical ProReact EN Analogue Sensor Cable Test Kit setup
