Servomex DF-150E User Manual

2 DF-150E Table of Contents
7.14.2 Sensor in NEMA 7 Enclosure.............................................................. 33
7.14.3 Sensor in NEMA 4 Enclosure.............................................................. 35
7.14.4 Temperature Control in R4/R7 Enclosures........................................... 36
8 Sample Gas and Plumbing Cautions ................................... 37
8.1 Normal Operating Conditions............................................................................... 37
8.2 Condensation/ Liquid Slugs.................................................................................. 37
8.3 Temperature......................................................................................................... 38
8.4 Leaks.................................................................................................................... 38
8.5 Process Up-sets (Oxygen Shock)........................................................................... 38
8.6 Reactivity with KOH Electrolyte........................................................................... 39
9 Outputs and Remote Connections....................................... 41
9.1 The I/O Connector................................................................................................ 42
9.1.1 Alarm 1 and 2 (NC-C-NO)...................................................................... 42
9.1.2 4 to 20 mA Isolated Output (4-20+, 4-20-)............................................... 43
9.1.3 Analog Output (Rec + & Rec - ) .............................................................. 43
9.1.4 Remote Range Indicator (Range Com - Range 1, 2, 3) ............................. 43
9.1.5 Sensor Off (Sensor Off Com, Sensor Off) ................................................ 44
9.1.6 DC Common (DC Com).......................................................................... 44
9.1.7 Ground ( ) ............................................................................................. 44
9.2 The Remote Sensor Connector.............................................................................. 44
9.2.1 Remote Sensor (Sensor +, Sensor -)......................................................... 44
9.2.2 Secondary Electrodes (Sec El +, Sec El -) ................................................ 45
9.2.3 A, B (A, B).............................................................................................. 45
9.2.4 Flow Switch (Flow SW, Flow SW Com).................................................. 45
9.3 Pump Control Connector ...................................................................................... 45
9.3.1 Pump Control.......................................................................................... 45
9.3.2 Analyzer Control of a Remote Pump........................................................ 46
9.3.3 Remote Control of the On-board Pump.................................................... 46
10 Maintenance and Calibration Checks .................................. 47
10.1 Sensor Maintenance............................................................................................ 47
10.1.1 Restoring electrolyte level.................................................................... 47
10.2 Calibration.......................................................................................................... 48
10.2.1 Adjusting Calibration .......................................................................... 48
10.2.2 Adjusting Calibration (with the Gas Scale Factor Option installed)...... 49
10.3 Cleaning the Analyzer ........................................................................................ 50
11 Theory of Operation .............................................................. 51
12 Troubleshooting .................................................................... 53
12.1 Troubleshooting Guide........................................................................................ 53
12.1.1 Problem Observations .......................................................................... 53
12.1.2 Remedy Table...................................................................................... 54
12.2 Troubleshooting Considerations.......................................................................... 55
12.2.1 Gas Pressure Effects............................................................................. 55
12.2.2 Positive Pressure Operation.................................................................. 55
12.2.3 Negative Pressure Operation ................................................................ 55
12.2.4 Temperature Effects on Sensor Performance........................................ 56
12.2.5 Flow Rate Effects on Sensor Performance ............................................ 56
12.3 Replaceable Parts................................................................................................ 57
12.4 Fuse Replacement ............................................................................................... 58
13 Shipping the Analyzer........................................................... 59

Servomex DF-150E Specifications

General

Brand	Servomex
Model	DF-150E
Category	Analytical Instruments
Language	English