VICI D-4-I-TQI-R - Manual

Valco Instruments Co. Inc.
Valco Instruments Co. Inc.
800 · 367· 8424 sales
713 · 688· 9345 tech
713 · 688· 8106 fax
[email protected]
Valco International
Schenkon, Switzerland
Int + 41
· 41 · 925· 6200 phone
Int + 41 · 41 · 925· 6201 fax
[email protected]
d4_therm.P65
© 2002 Rev. 1/02
Printed in USA
Pulsed Discharge Detector
Models D-4-I-TQ-R
and D-4-I-TQI-R
Instruction Manual
Introduction
Description and Operating Principles ............................................................ 1
Safety Notes and Information ........................................................................ 2
Components of the Detector System ............................................................ 3
System Requirements ................................................................................... 4
Installation
General Precautions ...................................................................................... 6
Mounting the Detector on the GC ................................................................. 6
Pulser Module Installation ............................................................................. 6
Gas Connections ........................................................................................... 7
Installing and Purging the Gas Regulator .............................................. 7
Installing and Purging the Helium Purifier .............................................. 8
Connecting the Discharge Gas to the Detector ..................................... 8
Detector Electrical Connections .................................................................... 9
Initial Power-Up ........................................................................................... 10
Capillary Column Connection ...................................................................... 11
Packed Column Connection ........................................................................ 11
Testing for Leaks ......................................................................................... 12
Mode Selection and Setup
Helium Ionization Mode ............................................................................... 13
Selective Photoionization Mode ................................................................... 13
Troubleshooting
High Background Current ............................................................................ 15
Low Sensitivity ............................................................................................ 15
No Peaks ..................................................................................................... 15
High Noise Level ......................................................................................... 16
Performing a Hydrogen Leak Test ............................................................... 16
Warranty ............................................................................................................ 17
Detector Performance Log ................................................................................. 18