Analog Measurement Specifications; Voltage Measurements - Campbell CR300 Series Product Manual

NOTE:
CR300 series data loggers are not capable of applying reverse excitation. Set the RevEx
parameter of all bridge measurement instructions to False.
Range: 150 to 5000 mV
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Resolution: 1.6 mV
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Maximum Source Current: 50 mA total, concurrently or independently.
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See also

Voltage measurements

SW12V: Provides unregulated 12 VDC power with voltage equal to BAT+ input voltage. SW12V is
disabled when operating on USB power only. A thermal fuse regulates current sourcing.
Thermal Fuse Hold Current (Overload causes voltage drop. Disconnect and let cool to reset.
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Operate at limit if the application can tolerate some fluctuation.):
1200 mA @ -40 °C
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1100 mA @ 20 °C
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830 mA @ 70 °C
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See also Power output

19.5 Analog measurement specifications

6 single-ended (SE) or 3 differential (DIFF) terminals individually configurable for voltage,
thermocouple, current loop, ratiometric, and period average measurements, using a 24-bit ADC.
One channel at a time is measured.
19.5.1 Voltage measurements
Terminals:
Differential Configuration: DIFF 1H/1L – 3H/3L
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Single-Ended Configuration: SE1 – SE6
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Input Resistance:
5 GΩ typical (f
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N1
300 MΩ typical (f
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Input Voltage Limits: -100 to +2500 mV
(p. 68).
(p. 9).
= 50/60 Hz)
= 4000 Hz)
N1
19. CR300 series Specifications 187