Campbell VWIRE 305, Product Manual

Page: 14 / 65

Accuracy:
±(0.005 % of r effective measurement resolution)
Input resistance: 5 kΩ
Excitation voltage
Range:
0 to ±3 V (6 V peak-to-peak)
Resolution:
26 mV
Sensor resonant frequency
output range:
See column three of
Table 9-1 (p. 23).
Effective resolution
(precision):
0.005 to 0.45 Hz RMS, depending on scan rate. See column five of
Table 9-1 (p. 23).
Sustained input voltage on
measurement terminal
without damage:
–0.5 to 7.1 V
7.2 Temperature – specifications
Temperature measurement: 24-bit resistance measurement of thermistor or RTD embedded in
the vibrating wire sensor.
Rate:
1 Hz
Accuracy: 0.15 % of reading. Does not include cable resistance error, or
thermistor or RTD error.
Resolution:
0.002 Ω RMS @ 5 kΩ
Bridge resistor: 4.99 kΩ 0.1 %
Excitation voltage:
1.5 V
7.3 Module
7.3.1 Communications
CPI:
RJ45 interface to Campbell Scientific data loggers, sensors, and
GRANITE Measurement Modules.
USB:
USB micro-B device only, 2.0 full-speed 12 Mbps, for computer
connection.
VWIRE 305 10