Tsuruga 3587 - Connection Check Function

- 29 - MODEL 3587
4.3 Connection check function
This is a function that detects whether the probe is in contact with the object to be
measured or disconnection of the measuring cable.
Disconnection is detected by using the connection check terminals located rear side of the
tester.
When the connection check function of equipment setting is ON, Connection check is
undertaken during start and end of measurement.
Connection check time becomes 40 ms longer during measurement time.
When disconnection is detected during connection check, CERR is displayed on front
panel and output of C-ERR ON is obtained from back terminal.
Connection check can be turned ON / OFF during Connection check setting of the tester
(Section 3.8.5).
Connection method
Timing chart
Connection check time: 20ms
HIGH
LOW
L CONTACT
H CONTACT
20ms 20ms
①②③④⑤⑥⑦⑧ ⑩⑪⑫⑬⑭⑨
①②③④⑤⑥⑦⑧
⑫⑬⑭
⑩⑪⑨
TEST
CHARGE
ON
OFF
ON
OFF
START
STOP
ON
OFF
ON
OFF
C-ERR
C-ERR
Mask timer
Timer
Measurement
voltage output
Connection check
Sampling
Connection check
ＭΩ display value
In case of error detection while connection check is carried out during the measurement start.
In case of error detection while connection check is carried out during the measurement end.
detection
Residual voltage