Merlin PM2+
User Guide
Rev: 2 05-19
6
Repeat to adjust HIGH threshold as follows
10.
To change the high threshold, press and hold F1 and F2 HIGH buttons together
11.
The LCD screen will display ‘Offset H F1 10%’
12.
Select different thresholds by pressing the F1 HIGH button
13.
After 5 seconds of inactivity the LCD screen will display the new high offset value for F1 (fan 1).
14.
Once Fan 1 threshold has been set the LCD screen will prompt setting fan 2 ‘Offset H F2 10%’.
Once you have completed setting the thresholds, switch F1 and F2 switches to ON.
You will now need to calibrate the fans, see section 3 ‘How to set up the current monitors’.
Fan Current HIGH Thresholds
Threshold Value
Max Fan Running Current
10%
-
18A
20%
-
16.5A
30%
-
15A
40%
-
14A
4
Specification
Model: - PM2+
Power Supply: - 12-24VDC
Current Consumption: - 140mA @ 12vDC Max
Power Consumption: - ~1.7W
Operating Temp Range: - 10-40°C
Dimensions (mm): - W 190 x H 140 x D77
Net Weight (KG): - 0.58
Certification: - CE / RoHS