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User Manual
EC1000S
3.3.4 External signal input/external sync signal input terminal
When using an external input signal as the signal source with external synchronization, connect to the
external signal input/external sync signal input terminals (EXT SIG IN/EXT SYNC IN) on the rear panel.
For this connection, use a coaxial cable with a BNC connector.
The specifications for these external signal input/external sync signal input terminals are listed below.
Common specifications
Input terminal:
BNC-R (used for external signal input and external sync
signal input)
Input impedance:
10 kΩ
Non-destructive maximum input voltage: ±10 V
External signal input
Frequency range:
DC to 500 Hz
Gain setting range:
100 V range: 0.0 to 200.0 times (initial value is 100.0)
200 V range: 0.0 to 400.0 times (initial value is 200.0)
Gain setting resolution:
0.1
Gain accuracy:
±5% (50 Hz, when gain is at initial value with rated voltage
output)
Phase between input and output:
In-phase
Input voltage range:
−2.2 V to +2.2 V
External synchronization
Synchronization frequency range:
40 Hz to 500 Hz
∗ External sync signal is not required when line
synchronization is selected.
Input voltage threshold value:
California Instruments
TTL
55