QUI-1057
Page 2
Markes International Ltd
T:
+44 (0)1443 230935
F:
+44 (0)1443 231531
E:
www.markes.com
Contents
1.
Preface ................................................................................................. 5
1.1
Notices ............................................................................................ 5
1.2
Warranty .......................................................................................... 5
1.3
Regulatory compliance .................................................................. 5
1.4
Important safety warnings ............................................................. 5
1.4.1
Labels/symbols ................................................................. 6
1.4.2
Mains voltages .................................................................. 6
1.4.3
High temperatures ............................................................ 6
1.4.4
Hydrogen gas safety ......................................................... 7
1.4.5
Cleaning and decontamination ........................................ 7
1.5
Environment operating conditions ................................................ 7
1.5.1
Temperature ...................................................................... 7
1.5.2
Humidity ............................................................................ 7
1.5.3
Altitude .............................................................................. 8
1.6
Technical Specifications ................................................................ 8
1.6.1
Physical properties ........................................................... 8
1.6.2
Electrical properties .......................................................... 8
1.7
Technical support contact details ................................................. 8
2.
Instrument familiarisation .................................................................. 9
2.1
Hardware ........................................................................................ 10
2.1.1
Sample tubes .................................................................... 10
2.1.2
Tube desorption oven ....................................................... 10
2.1.3
Tube filters and seals ....................................................... 10
2.1.4
The cold trap ..................................................................... 10
2.1.5
Cold trap cooling and heating .......................................... 10
2.1.6
Trap filters and seals ........................................................ 11
2.1.7
Split filters ......................................................................... 11
2.2
Sequence of operation ................................................................... 12
2.2.1
Standby .............................................................................. 12
2.2.2
Leak test ............................................................................ 13
2.2.3
Prepurge ............................................................................ 14
2.2.4
Primary (tube) desorption ................................................ 15
2.2.5
Pre trap fire purge ............................................................. 16
2.2.6
Secondary (trap) desorption ............................................ 17
2.3
Insertion and removal of a sample tube in UNITY 2 .................... 18
2.3.1
Insertion............................................................................. 18
2.3.2
Removal ............................................................................. 18
2.4
Desorb and split flows .................................................................... 18
2.4.1
Gas flow through the cold trap ........................................ 18
