Veeco MS40 Operation And Maintenance Manual page 33

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
N2
EXHAUST LINE CONNECTOR
HEADPHONE JACK
CHART
EXTERNAL ROUGH VALVE CONNECTOR
Vacuum Instrument Corp. Vacuum Instrument Corp. VIC Leak Detection
2099 Ninth Avenue 2099 Ninth Avenue 2099 Ninth Avenue
Ronkonkoma, NY 11779 Ronkonkoma, NY 11779 Ronkonkoma, NY 11779
631.737.0900 631.737.0900 631.737.0900
1109-186-00 Rev. C
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.
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.
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.
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.
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
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
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.
-3
std cc/sec) is automatically
2-16
x
).