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<Input signal>
+COM(VOLT INPUT)
→
Common for input signal. Enter + 5 to 55 VDC
(recommended value 24 V).
AUTO ZERO
→
Enter one shot when it is desired to set the leak
rate currently being measured at zero point. Can
be inputted in test.
CALIBRATION
→
Enter one short when making automatic
sensitivity calibration at will. Can be inputted in
standby status.
TEST START/STOP
→
Activate the input signal when it is desired to start
test and deactivate it when it is desired to
terminate test. The instrument is in test status
while the signal is inputted.
PRINT OUT
→
Enter one short when it is desired to print out the
leak rate under measurement on the printer. Can
be entered in the test status.
SYSTEM START/STOP
→
Activate the signal when it is desired to start up
the system and deactivate it when to shut down
the system. The instrument is activated while
the signal is inputted.
* Enter one shot signal for about one second.
Malfunction can result if the input time is short.
* The output form of the SETPOINT L and H and SYSTEM ERROR signals can be
reversed by DIP switch signal output setting (changeover of normal ON/OFF). Refer to
DIP switch setting for more information.
(3) Output
signal
1)
The output signal is always outputted regardless of the setting of DIP switch No. 1
(remote operation).
2) The output is the open collector output of emitter common. Emitter common is
pin 1 (-COM).
3) Voltage inputted to each pin (pin 2 through pin 6) is + 5 V to 55 VDC
(recommended value + 24 V).
4)
Provide a load between pin 2 through pin 6 and the power. Check that the output
signal is activated/deactivated by the action of the load.
5)
The current applied to the load is maximum 50 Ma.
6) Output of the output signal SYSTEM ERROR (pin 5) starts when trouble has
occurred and is reset the moment the error mode is reset by pressing the return
switch
.
Summary of Contents for HELIOT 301
Page 88: ......
