
Dimensions:
General Specifications
Power Supply . . . . . . . . . . . . . . .
15 – 30 Vac/dc (non-isolated half-wave rectified)
Consumption . . . . . . . . . . . . . . .
10 mA max @ 24 Vdc
Protection Circuitry . . . . . . . . .
Reverse voltage protected, overvoltage protected
Operating Conditions . . . . . . .
-40 - 122 °F (-40 - 50 °C), 0-95 %RH non-condensing
Wiring Connections . . . . . . . . .
Screw terminal block (14 to 22 AWG)
Enclosure . . . . . . . . . . . . . . . . . . .
ABS, UL94-5VB, IP61 (NEMA 2)
Dimensions . . . . . . . . . . . . . . . .
114 x 84 x 53 mm (4.5”w x 3.3”h x 2.1”d)
Sensing Probe . . . . . . . . . . . . . .
230 mm (9") long x 12.7 mm (1/2") diameter stainless steel with porous filter
RH
Sensor . . . . . . . . . . . . . . . . . . . . . . . .
Thermoset polymer based capacitive
Accuracy . . . . . . . . . . . . . . . . . . .
± 2 %RH
Range . . . . . . . . . . . . . . . . . . . . . .
0-100 %RH
Resolution . . . . . . . . . . . . . . . . .
0.1 %RH
Hysteresis . . . . . . . . . . . . . . . . . .
± 1.5 %RH
Response Time . . . . . . . . . . . . .
15 seconds typical
Stability . . . . . . . . . . . . . . . . . . . .
± 1.2 %RH typical @ 50 %RH in 5 years
Temperature
Sensor . . . . . . . . . . . . . . . . . . . . .
20KΩ NTC thermistor
Accuracy . . . . . . . . . . . . . . . . . . .
± 0.2 °C (± 0.4 °F) curve matched
Range . . . . . . . . . . . . . . . . . . . . . .
-40 - 50 °C (-40 - 122 °F)
Resolution . . . . . . . . . . . . . . . . . .
0.1 °C / °F
Interface
Hardware . . . . . . . . . . . . . . . . . . .
2-wire RS-485
Software . . . . . . . . . . . . . . . . . . . .
Native ModBus MS/TP protocol (RTU)
Baud Rate . . . . . . . . . . . . . . . . . . 38400
Network Address Range . . . . .
Locally set to 1-255
Parity . . . . . . . . . . . . . . . . . . . . . . . . . . None
Stop Bits . . . . . . . . . . . . . . . . . . . . 1
CRC . . . . . . . . . . . . . . . . . . . . . . . .
A001 (CRC-16 reverse)
Greystone Energy Systems, Inc. 150 English Drive, Moncton, NB E1E 4G7 Canada Tel: +1-506-853-3057 Tollfree (North America): +1-800-561-5611 Fax: +1-506-853-6014
Email: [email protected] Web: www.greystoneenergy.com
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NTD
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-001 08/15
84 mm
3.3 “
53 mm
2.1 “
228.60 mm
9”
2X Ø 0.850”
12.70 mm
0.50“
304 Series S/S Probe
60 micron HDPE filter
114 mm
4.5“
Mounting Holes (X2) Ø 0.200”