Teledyne Meridian User Manual page 9

Table of Contents (Continued)
Sect. # Section Title
7.1. Calibrating the Device
7.1.1. Calibration Hookup
7.2. Calibration Methods
7.2.1. Zero Calibration
7.2.2. Span Calibration
7.3. Maintaining the Device
7.3.1. Replacing a Sensor
7.3.2. Changing the E-Chem Sensor's Range
7.3.3. Selecting the Combustible IR Sensor's Target Gas
7.3.4. Replacing the Intrinsically Safe (IS) Barrier PCB
7.3.5. Replacing the Power Supply PCB (3 or 4-Wire)
7.3.6. Replacing the Power Supply PCB (2-Wire)
7.3.7. Trimming the 4-20mA Loop
7.3.8. Replacing the LCD PCB/CPU PCB
7.3.9. Replacing the Terminal/Relay/MODBUS RS-485 PCB
7.3.10. Replacing the Meridian NPT Ex Seal
7.3.1 1. Replacing the Meridian Detector Body Assembly
7.3.12. Re-mapping the Sensors
7.3.13. Clearing a Sensor Fault
7.4. Troubleshooting the Device
A. Specifications
A.1. Device Specifications
A.2. Combustible (LEL), IR, Cat-bead Sensor Specifications
A.3. Toxic (E-Chem) Sensor Specifications
B. Gas Sensor Information
B.1. Sensor Technology Overview
B.2. Sensor Performance Factors
B.3. Combustible Cat-Bead Sensor K-Factors
Information contained herein is classified as EAR99 under the U.S. Export Administration Regulations. Export, reexport or diversion contrary to U. S. law is
USE AND DISCLOSURE OF DATA
prohibited.
MERIDIAN
UNIVERSAL GAS DETECTOR
TABLE OF CONTENTS
Page #
7-1
7-2
7-4
7-5
7-7
7-10
7-1 1
7-1 1
7-12
7-13
7-15
7-16
7-17
7-18
7-19
7-20
7-22
7-24
7-25
7-26
A-1
A-1
A-5
A-7
B-1
B-1
B-3
B-4
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