D U N I W A Y S T O C K R O O M C O R P .
11 of 29
Note: Many other manufacturer’s gauge pin connections use this same pin configuration.
908A 9-pin ‘D’
to
MKS Baratron 5-pin Molex
908A Pin
Terranova Name
Color
Tube Pin/Connection Name
1
Tube #1 Signal
white
to: Tube#1, Pin 3/Pressure Out
2
Tube #2 Signal
white
to: Tube#2, Pin 3/Pressure Out
3
Tube #2 Signal Return brown
to: Tube#2, Pin 2/Output Return
4
+15 volts
red
to: Tube#1, Pin 5/+15 VDC
5
+15 volts
red
to: Tube#2, Pin 5/+15 VDC
6
-15 volts
green
to: Tube#1, Pin 4/-15 VDC
7
-15 volts
green
to: Tube#2, Pin 4/-15 VDC
8
Tube #1 Signal Return brown
to: Tube#1, Pin 2/Output Return
9
Electronics Common
black/shield to: Tube#1, Pin 1/Pwr.Comm & none
9
Electronics Common
black/shield to: Tube#2, Pin 1/Pwr.Comm & none
Figure 6: 908A -- MKS Baratron Pin Connections (5 pin)
Current available for +15 volts from pins 4 and 5, and for -15 volts from pins 6 and 7 is internally
protected and limited to approximately 0.75 amp total for each supply. For example, this allows
CDG #1 and CDG #2 to draw 0.375 amp each; or CDG #1 may draw 0.72 amp and CDG #2 may
draw 0.03 amp. If excessive current is taken through any of the power output pins, the internal
protection will shut off the power for the affected voltage. It will be necessary to disconnect pow-
er for the 908A for a few minutes to allow the internal protection device to cool down and reset
itself.
908A 9-pin ‘D’
to
MKS Baratron 9-pin ‘D’ (i.e. 750B)
908A Pin
Terranova NameColorTube Pin/Connection Name
1
Tube #1 Signal
white
to: Tube#1, Pin 1/Pressure Out
2
Tube #2 Signal
white
to: Tube#2, Pin 1/Pressure Out
3
Tube #2 Signal Return brown
to: Tube#2, Pin 8/Output Return
4
+15 volts
red
to: Tube#1, Pin 4/+15 VDC
5
+15 volts
red
to: Tube#2, Pin 4/+15 VDC
6
-15 volts
green
to: n/a
7
-15 volts
green
to: n/a
8
Tube #1 Signal Return brown
to: Tube#1, Pin 8/Output Return
9
Electronics Common
black/shield to: Tube#1, Pin 9/Pwr.Comm & none
9
Electronics Common
black/shield to: Tube#2, Pin 9/Pwr.Comm & none
Figure 7: 908A -- MKS Baratron Pin Connections (9 pin ‘D’)
(This applies to CDG sensor tubes such as the Baratron 750B)
TELEPHONE: 650-969-8811 TOLL-FREE (U.S. only): 800-446-8811 FAX: 650-965-0764 EMAIL: [email protected]
www.duniway.com
