Rev. 2 i
Table of Contents
Cover Page...................................................................................................... i
Table of Contents ........................................................................................... i
List of Figures................................................................................................ v
List of Tables ................................................................................................ ix
Foreword ....................................................................................................... xi
Purpose and Scope ............................................................................................. xi
Contents of this Manual ..................................................................................... xi
General Precautions ..........................................................................................xii
Cryogen Safety Summary ................................................................................xiii
Safety Legend .................................................................................................. xiv
Equipment Warnings......................................................................................... xv
Instrument Configuration.................................................................................. xv
Introduction ................................................................................................... 1
1.1 Model 1700 Instrument....................................................................................... 1
1.1.1 Cryogenic (Capacitance-Based) Liquid Level Sensors ......................... 1
1.1.2 Digitally-Controlled............................................................................... 3
1.1.3 System Flexibility .................................................................................. 3
1.1.4 Display ................................................................................................... 3
1.1.5 Intuitive Human-Interface Design ......................................................... 4
1.1.6 Measurement Flexibility ........................................................................ 4
1.1.7 Real Time Clock .................................................................................... 4
1.1.8 Valve Control Output............................................................................. 4
1.1.9 Analog Outputs ...................................................................................... 4
1.1.10 Signal Relays.......................................................................................... 4
1.1.11 Connectivity........................................................................................... 4
1.2 Model 1700 Front Panel Layout ......................................................................... 6
1.3 Model 1700 Rear Panel Layout .......................................................................... 6
1.4 Model 1700 Specifications @ 25°C.................................................................... 7
Installation ................................................................................................... 11
2.1 Unpacking and Inspecting the Instrument ........................................................ 11
2.2 Mounting the Model 1700 Instrument .............................................................. 11
2.3 Installing Capacitance-Based Liquid Level Sensors......................................... 11
1 Table of
Contents