Chauvin Arnoux C.A 25 Mode D'emploi page 60

The use of the external input is necessary for the measurement of slow signals from
0.1 Hz. The table below summarizes the specifications of this input.
MEASUREMENT FREQUENCY
RANGE
FUNCTIONS AVAILABLE
ACCURACY
INPUT IMPEDANCE
TRIP THRESHOLD
Bipole function
HYSTERESIS
Bipole function
TRIP THRESHOLD
TTL function
HYSTERESIS
TTL function
MAX. PERMANENT
VOLTAGE
PERMITTED OVERLOAD 1 second
from 1Hz to 10 kHz
from 0.1 Hz to 10 kHz on extended range
Idem optical sensor
Idem optical sensor
≥ 75 kΩ
300 mV ± 80 mV at 1 kHz
600 mV ± 160 mV at 10 kHz
250 mV ± 80 mV
1,1 V ± 150 mV at 1 kHz
2,2 V ± 300 mV at 10 kHz
250 mV ± 80 mV
± 20 V peak
250 V rms
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