Cable & Wireless CWB100 Specifications download pdf (Page 21)

Wireless Sensor Network

2.4.3 WS655 Environmental Specifications

Temperature Range: -25° to +50°C (-13° F to + 122°F)

Humidity Range: 0 to 100%

Weather Resistance: IP67 rating for sensor and battery pack (battery pack

must be properly installed; each sensor is leak tested)

2.5 CWS900 Specifications

2.5.1 CWS900 Physical Specifications

Dimensions: 15 cm x 6 cm x 4.5 cm (6” x 2.4” x 1.8”)

Weight: 184 g (6.5 oz)

2.5.2 CWS900 Electrical Specifications

Power:

2 AA Batteries

Average Current Drain:

300 PA with 15 minute polling (depending

on attached s

ensor)

Radio:

Internal 25 mW FHSS Radio

Single-Ended Analog Channels:

SE1, SE2, SE3

Differential Analog Channels:

DF1

Analog Input Range:

-1 to + 2.5 VDC

Accuracy:

±(0.02% of reading + 2 μV) @ 0° to +50°C;

(0.05% of reading + 2 μV) @ -

35° to +70°C

Resolution:

0.3 PV

Excitation Voltage:

2.5V, 3.3 V, 5.0 V

20 mA maximum

Excitation Voltage Accuracy:

±2% @ -35° to +70°C

Bridge Measurement Accuracy

(+2.5 excitation only)

±(0.03% of reading + 3 μV) @ 0° to + 50°C;

±(0.07% of reading + 3 μV) @

-35° to

+ 70°C

Low Level AC Input:

20 mV minimum

10 kHz maximum frequency

Switch Closure

Maximum Count Rate:

Minimum Open Time:

Minimum Closed Time:

Maximum Bounce Time:

100 Hz

5 ms

4 ms

Temperature Accuracy:

± 0.2ºC

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Cable & Wireless CWB100 Specifications Page 21

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