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Installation and wiring – Campbell Scientific CS105/CS105MD Barometric Pressure Sensor User Manual

Page 6

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CS105/CS105MD Barometric Pressure Sensor

Supply Voltage: 10 to 30 VDC

Supply Voltage Control: When enabled with an internal jumper, the CS105 is
on continually. When disabled, the CS105 can be turned on/off with 5 VDC/0
VDC.

Supply voltage sensitivity: Less than 0.1 mb

Current Consumption: <4 mA (active); <1

µA (quiescent)

Output Voltage: 0 to 2.5 VDC

Warm Up Time: 1 second

Pressure fitting: barbed fitting for 1/8” I.D. tubing

Overpressure limit: 2000 mb

The black outer jacket of the cable is Santoprene

®

rubber. This

compound was chosen for its resistance to temperature extremes,
moisture, and UV degradation. However, this jacket will
support combustion in air. It is rated as slow burning when
tested according to U.L. 94 H.B. and will pass FMVSS302.
Local fire codes may preclude its use inside buildings.

NOTE

3. Installation and Wiring

The CS105 can be operated in one of two modes: powerup and continuous.
The mode is selected by a jumper located underneath a black plug on the face
of the barometer. When the jumper is not installed, the CS105 is in powerup
mode and the datalogger turns the CS105 on and off with a control port or
excitation channel; to use the excitation channel the datalogger must be able to
provide an excitation voltage of 5 VDC. When the jumper is installed the
CS105 is powered continuously.

CS105s shipped from Campbell Scientific are configured for
powerup mode (jumper open).

NOTE

CS105MDs shipped from Campbell Scientific are configured for
continuous power mode (jumper closed).

NOTE

Mount the CS105 to the backplate in the same enclosure that the datalogger is
located in (Figures 1 and 2).

On the older (grey jacketed) cable pressure (VOUT) was brown
and signal ground (AGND) was white.

NOTE

2