BEAMEX MC4 - Frequency Measurement; Pulse Counting; Switch Test

Appendix 1, Technical Data
186 MC4 User Guide
Frequency Measurement
Full Range: 0.0027  50 000 Hz
Sub Range Resolution 1 Year Uncertainty
(1
0.0027 .. 0.5 Hz 0.000001 Hz 0.01 % RDG
0.5 .. 5 Hz 0.00001 Hz
(same as above)
5 .. 50 Hz 0.0001 Hz
(same as above)
50 .. 500 Hz 0.001 Hz
(same as above)
500 .. 5000 Hz 0.01 Hz
(same as above)
5000 .. 50000 Hz 0.1 Hz
(same as above)
Feature Specification
Temperature
coefficient
Specification valid from –10  50°C
(14  122°F)
Input impedance > 1 Mohm
Trigger level -114 V in 1 V steps and open collector inputs
Minimum signal
amplitude
2 Vpp (< 10 kHz),
3 Vpp (10...50 kHz)
Supported units Hz, kHz, cph, cpm, 1/Hz (s), 1/kHz (ms), 1/MHz (µs)
Gate period 267 ms + 1 signal period
Pulse Counting
Feature Specification
Range 0 to 9,999,999 pulses
Input impedance > 1 Mohm
Trigger level -114 V in 1 V steps and open collector inputs
Minimum signal
amplitude
2 Vpp (pulse length > 50 µs)
3 Vpp (pulse length 10...50 µs)
Switch Test
Potential free contacts
Test Voltage
(Trigger level)
3 V 0.13 mA (1 V) or
24 V 35 mA (2 V)
Voltage level detection
Input impedance > 1 Mohm
Trigger level -114 V in 1 V steps
1)
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)