Vacuum Instrument Corp.
2099 Ninth Avenue
Ronkonkoma, NY 11779
631.737.0900
Vacuum Instrument Corp.
2099 Ninth Avenue
Ronkonkoma, NY 11779
631.737.0900
VIC Leak Detectio
2099 Ninth Avenue
Ronkonkoma, NY 11779
631.737.0900
The connectors that are listed below allow the MS-40 to interface with various
external equipment. An illustration of these rear panel connectors is presented
in Figure 2-2. All of the connectors are located on the rear of the unit, below
the rear panel (from left to right):
SNIFFER CONNECTOR
This port (a quick-connect fitting is attached to the port) is
used to connect to VIC’s external sniffer probe. When the
sniffer probe is not connected to the unit, a plug (provided)
should be installed in the connector whenever the unit is operating.
N2
A standard 1/4” bulkhead connector. Allows the user to
connect N2 to the purge fitting on the mechanical pump or to
the vacuum system vent port.
EXHAUST LINE CONNECTOR
A standard 3/8” bulkhead connector. Allows the normal
exhaust that the MS-40 produces during testing to be
channeled directly to a user-provided exhaust system.
Standard 3/8 inch tubing is used between the detector and the
exhaust system. Must be internally connected by the user.
HEADPHONE JACK
A standard 1/8” connector. Allows the user to listen to audio
tones. The audio tones indicates leak status - the higher the
tone, the larger the leak. Most useful in noisy environments
when the audio volume of the unit is not loud enough for an
operator to clearly hear.
CHART
Two single-pin connectors. Allows the use of a chart
recorder, or similar device, to monitor leak testing as it
progresses. Provides a 0-5V DC output corresponding to the
leak rate mantissa of 0 to 10 (i.e., 2V represents 4.0 x 10
x
).
EXTERNAL ROUGH VALVE CONNECTOR
A standard 5-pin Molex connector. This port allows the
connection of the external roughing option to the MS-40.
With the external roughing option, the unit’s gross testing
mode (10.0 to 1 x 10
-3
std cc/sec) is automatically
available. The connector has a sensing line that is engaged
and then monitored by the MS-40 computer whenever the
external rough valve is attached to the connector.
1109-186-00 Rev. C 2-16
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