Campbell CR1000X User Manual

own independent 32-bit counter.
NOTE:
Conflicts can occur when a control port pair is used for different instructions
(TimerInput(), PulseCount(), SDI12Recorder(), WaitDigTrig()). For
example, if C1 is used for SDI12Recorder(), C2 cannot be used for TimerInput(),
PulseCount(), or WaitDigTrig().
Maximum Input Voltage: ±20 Vdc
Maximum Counts Per Channel: 2
32
Maximum Counts Per Scan: 2
32
Input Resistance: 5 kΩ
Accuracy: ±(0.02% of reading + 1/scan)
10.6.1 Switch closure input
Pull-Up Resistance: 100 kΩ to 5 V
Event: Low (<0.8V) to High (>2.5 V)
Maximum Input Frequency: 150 Hz
Minimum Switch Closed Time: 5 ms
Minimum Switch Open Time: 6 ms
Maximum Bounce Time: 1 ms open without being counted
10.6.2 High-frequency input
Resistance: Configurable in terminal pairs with 100 kΩ pull-up or pull-down
Pull-Up Resistance: 100 kΩ to 5 V
Event: Low (<0.8V) to High (>2.5 V)
Maximum Input Frequency: 250 kHz
10.6.3 Low-level ac input
Minimum Pull-Down Resistance: 10 kΩ to ground
Ac-offset Rejection: Internal ac coupling eliminates ac-offset voltages up to ±0.05 Vdc
Input Hysteresis: 12 mV @ 1 Hz
Low-Level Ac Pulse Input Ranges:
10. Specifications 170

Campbell CR1000X Specifications

General

Brand	Campbell
Model	CR1000X
Category	Data Loggers
Language	English