INFICON Protec P3000(XL) Helium Leak Detector - Manual (Page 101)

Equipment Connections
6-3
k
in
a
26
e Ch
ap
te
r
6
.fm
Tech
ni
ca
l Ha
nd
bo
ok
(1
20
9)
Calibration
Starts a calibration process and also confirms to proceed with the calibration after the
signal from the test leak had enough time to stabilize and the sniffer tip has been
moved away from the test leak (see timing chart for calibration below).
Calibration abort
Aborts a calibration any time during a calibration process.
Zero
Performs the ZERO function (equivalent to pressing the zero button)
Clear Error
Acknowledges any warnings or error messages. If used during an ongoing
calibration, the calibration will be aborted.
6.1.4 PLC Outputs
These outputs can be used to monitor the Protec P3000 via a programmable logic
control (PLC).
PLC Outputs are designed as an „Open Collector Output“ or a relay output. Please
refer to the example given below for an open collector output „Error“.
Fig. 6-2 Circuit for open collector output “Error”
6
17
24 V
I/O Port (open collector output)
Error active = 0 Volt
Error inactive = 24 Volt
10 K Ω