nVent RAYCHEM RayStat-M2-G Sensor Temperature and Moisture
List of figures
The following figures are located at the back of the instructions:
Fig. 1: Snow melting application
Fig. 2: nVent RAYCHEM RAYSTAT-M2-G-Sensor
Fig. 3: nVent RAYCHEM RAYSTAT-M2-G-Sensor wiring
Fig. 4: RAYSTAT-M2 controller troubleshooting
Ground sensor type RayStat-M2-G-Sensor
Designed for embedding into the surface of the outdoor area.
Detects both temperature and moisture.
Mounting of sensor
To be mounted where snow and ice problems normally occur.
The sensor must be embedded horizontally with its top flush with the surroundings with the help of the accompanying installation plate.
To be mounted on a hard foundation, e.g. in a concrete base or asphalt.
Mounting of sensor cable
The cable must be mounted in accordance with applicable local regulations.
The cable must never be installed parallel to power cables as electrical interference may distort the sensor signal.
The sensor is supplied with 10 m cable which can be extended up to 200 m using standard installation cable: 6×1,5 mm². The total resistance of the cable must be less than 10 Ω.
Product overview
1 = Snow melting thermostat RayStat-M2
2 = Junction box (Only if sensor cable is too short)
3 = Conduit for sensor cable
4 = Heating cable
5 = RayStat-M2-G-Sensor
6 = Metal bracket plate for alignment purposes
7 = Sensor cable
1 = RayStat-M2-G-Sensor
2 = Metal bracket plate for alignment purposes
3 = Heating cable
TROUBLESHOOTING
RAYSTAT-M2-G-Sensor
VIA-DU-S20 Temp.: (1) GREY & (2) PINK / VIA-DU-A10
| NTC 12 kΩ @ 25°C – RAYSTAT-M2-G-Sensor / RAYSTAT-M2-A-Sensor | ||||||
| –20ºC = 112246Ω | 11ºC = 22300Ω | 16ºC = 17750Ω | 21ºC = 14238Ω | 26ºC = 11506Ω | 35ºC = 7978Ω | 60ºC = 3201Ω |
| –10ºC = 63929Ω | 12ºC = 21292Ω | 17ºC = 16974Ω | 22ºC = 13636Ω | 27ºC = 11035Ω | 40ºC = 6569Ω | 70ºC = 2306Ω |
| 0ºC = 37942Ω | 13ºC = 20335Ω | 18ºC = 16237Ω | 23ºC = 13064Ω | 28ºC = 10587Ω | 45ºC = 5442Ω | 80ºC = 1692Ω |
| 5ºC = 29645Ω | 14ºC = 19428Ω | 19ºC = 15537Ω | 24ºC = 12519Ω | 29ºC = 10159Ω | 50ºC = 4535Ω | 90ºC = 1263Ω |
| 10ºC = 23364Ω | 15ºC = 18567Ω | 20ºC = 14871Ω | 25ºC = 12000Ω | 30ºC = 9752Ω | 55ºC = 3800Ω | 100ºC = 958Ω |
- VIA-DU-S20 Heat.: (5) BROWN & (6) GREEN: +/- 224 Ohm
- VIA-DU-S20 Moist.: (3) YELLOW & (4) WHITE: Dry > 1MOhm / Wet: < 100kOhm
RAYSTAT-M2-A-Sensor: -> NTC 12 kΩ @ 25°C
RAYSTAT-M2 controller
The RAYSTAT-M2 controller relay: terminals 5 & 7.
Relay 5 – 7: NO (Open Loop / > 10MOhm)
Relay 5 – 7: Closed: 0 Ohm
To obtain 230 Vac output on terminal 7, one has to supply 230 Vac on terminal 5 in addition to the 230 Vac supply to the controller itself (L on terminal 1 & N on terminal 2).
In order to obtain Line voltage on terminal 7 when the relay is closed, one must supply terminal 5 with Line voltage:
CUSTOMER SUPPORT
Tel 0800 969 013
Fax 0800 968 624
salesthermalUK@nVent.com
©2023 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.
RAYCHEM-IM-H82006-RayStatM2GSensor-ML-2303
nVent.com/RAYCHEM
Documents / Resources
 |
nVent RAYCHEM RayStat-M2-G Sensor Temperature and Moisture [pdf] Instruction Manual RayStat-M2-G Sensor Temperature and Moisture, RayStat-M2-G, Sensor Temperature and Moisture, Temperature and Moisture |
