Model 990 dCLD II Component Leak Detector
2-9
Figure 2-4 J3 Input Circuit Sketch
Table 2-7 J3 Inputs Summary Table
J3/
Pin
Input Name
Momentary
or Level
Description
1
Input Common
N/A
Return for J3 inputs (with pin 25).
5
RUN / IDLE
Level
Turns ON the spec tube and turbo (leave IDLE state).
6
PARALLEL ENABLE
Level
Disable changes to the parameters from discrete I/O, serial
inputs or optional front control panel.
7
ZERO
Momentary
Performs a ZERO function.
8
STDLEAK
Momentary
Puts the Leak Detector in Read STD LEAK mode.
9
Full Internal Calibrate Momentary
Performs a Full Calibration using the internal leak.
10
DECREMENT
Momentary
Decrements the Exponent in Manual Ranging.
11
INCREMENT
Momentary
Increments the Exponent in Manual Ranging.
12
AUTO / MANUAL
Level
Puts the system in Auto Ranging if active.
23
Full External Cal
Momentary
Performs a Full Calibration with External Leak.
24
Quick Internal Cal
Momentary
Performs a Quick Calibration using the internal leak.
25
Input Common
N/A
Return for J3 inputs (with pin 1).
35
FIL OFF
Level
Turns the operating Filament OFF when active.
37
Quick External Cal
Momentary
Performs a Quick Calibration using the external leak.
Summary of Contents for 990 dCLD II
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