HBX SNO-0110, Руководство по установке

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H B X S n o w m e l t S e n s o r H B X S n o w m e l t S e n s o r
© HBX Control Systems Inc. 2014 Page 9
SNO-0110 - DRAWING 003
SLAB SNOW/ICE SENSOR WIRING WITH A
SNO-0500
SNO-0110 - DRAWING 004
REMOTE INSTALL - SNOW/ICE SENSOR WITH
A SNO-0500
TESTING AND TROUBLESHOOTING PROCEDURE
Temperature Resistance Temperature Resistance Temperature Resistance
º
F
º
C Ω
º
F
º
C Ω
º
F
º
C Ω
- 22 - 30 177,000 - 0.4 - 18 86,463 21.2 - 6 44,617
- 18.4 - 28 156,404 3.2 - 16 77,162 24.8 - 4 40,153
- 14.8 - 26 138,482 6.8 - 14 68,957 28.4 - 2 36,182
- 11.2 - 24 122,807 10.4 - 12 61,711 32 0 32,654
- 7.6 - 22 109,075 14 - 10 55,319 35.6 2 29,498
- 4 - 20 97,060 17.6 - 8 49,640 39.2 4 26,686
SNO-0110 - TESTING
1. Thermistor Test
Resistance table for thermistors (outdoor, system)
2. Snowmelt Sensor Test
I. Heater Element Resistance Test
With the sensor unplugged, measure the resistance between the Red wire and the black wire. The result
should be around 23-26 Ohms with all 30 meters of wire attached.
The Following is applicable to the SNO-0500 and SNO-1000. Refer to SNO-0550 manual for testing Instructions.
II. Slab Sensor Test
Using the above table measure the resistance of the white and shield wires with the sensor unplugged. This
will give you the slab sensor reading when the heater is not ON. Take note if the heater was ON and the
snowmelt sensor is warm, this will reflect in the slab sensor reading.
III. Heater Element Voltage Test
With the sensor plugged into the control (make sure heater is ON) check the voltage from Red to Black.
The voltage should be around 15-17 VDC (versions 1.XX) or 12-15 VDC (versions 2.XX).
IV. Intensity Test
With the sensor plugged into the control (make sure heater is ON) check the voltage between Green and
Black. The reading should be around 0.5-1.0 VDC without snow on the optical sensor and 2.0-3.0 VDC with
100% snow.