MKS 146C - Cold Cathode; Table 12: Cold Cathode Connector Pinout; Table 13: Cold Cathode Sensors and Cables

Inside the Type 146 Unit Cha
p
ter Three: Overview
54
Cold Cathode
Located on the end of the Cold Cathode board are two coaxial connectors. Table 12 shows the
connector pinout. A list of MKS sensors, along with their cables, is shown in Table 13.
Cold Cathode Connector Pinout
High Voltage High Voltage BNC
High Voltage Center
Chassis Ground Shield
Ion Current SMA
Ion Current Center
Chassis Ground Shield
Table 12: Cold Cathode Connector Pinout
Cold Cathode Sensors And Cables
Sensor and Cable Type Part Number
Cold Cathode with NW-40-KF 104210001
Cold Cathode with 2¾” CF 104210002
Cold Cathode with 1” tube 104210003
Cold Cathode with NW-25-KF 104210004
Cold Cathode Cable (10 ft.) 100006171
Table 13: Cold Cathode Sensors and Cables
Note
One characteristic common to all ion
g
au
g
es is an inabilit
y
to establish an
ion current at hi
g
h
p
ressures. The
g
au
g
e ma
y
, therefore, res
p
ond as if the
pressure is extremely low. Keep this characteristic in mind when setting
a disconnect threshold, alarm tri
p
p
oints, or if
y
ou desi
g
nate an ion
g
au
g
e
as a reference channel.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com