Models 947, 948 and 960 Leak Detectors Operations and Service Manual
I-2
H
Hazard and safety information 1-iv
Helium for sealing G-7
Helium mass spectrometer leak detection G-4
Hermetic
Hold mode indicator 3-2
Host serial port interface (option) D-4
Host serial port J123 pinouts 2-7
I
Installation
Liquid nitrogen 1-12
Power supply 1-11
Services 1-12
Special requirements 1-12
Vacuum pumps 1-12
Instruction label 1-8
Interface
Interface, optional
BCD discrete I/O parallel signal D-3
BCD J121 outputs 2-6
Connections 2-8
Discrete I/O 2-9
Discrete I/O J120 inputs 2-5
Discrete I/O parallel signal D-1
Grounding 2-8
Host serial port J123 pinouts 2-7
Host serial port signal D-4
PLC 2-5, 2-7
Rear panel connections 1-13, 2-8
Setup 2-9
Universal remote control (option)
signal D-4
Internal operating parameters C-2
L
Leak checking 4-6
Leak detection methods G-5
Already sealed G-7
Evacuated G-6
Pressurized G-6
Leak detector maintenance 4-1
Leak detector storage 1-13
Leak rate 3-5, G-5, G-6
Leak test methods G-3
Helium G-3
Radioisotope G-3
Ultrasonic G-3
Water immersion G-3
Auto ranging 3-13
Manual ranging 3-14
Leak types G-1
Leak value 3-4
LED indicator 3-1
Auto cal 3-2
Hold 3-2
Not ready 3-2
Reject 3-2
Start 3-2
Std leak 3-2
Test 3-2
Vent 3-2
Zero 3-2
Liquid nitrogen 1-3, 1-12, 3-10, 4-9, 4-10,
4-12, 4-20, 4-23, B-19, B-22, B-26, B-30
Locate leak by probe G-6
Locate leak with tracer probe G-6
Low pressure calibration 4-28
System pressure gauge calibration 4-28
Test port 4-30
M
Magnetic separation principle G-8
Main valve block assembly 4-24
Maintenance 4-1
