Vaisala GMP343 User Manual download pdf (Page 71)

Chapter 6 ______________________________________________________________ Maintenance

VAISALA_______________________________________________________________________ 69

CHAPTER 6

MAINTENANCE

This chapter instructs in the basic maintenance of the GMP343.

Cleaning the Probe Housing

You can clean the probe housing wiping with a moist cloth. Note the

following precautions when cleaning:

- Do not immerse the GMP343 in liquid to clean it.

- Do not attempt to clean the optical surfaces except as described in

section Changing the Filter and Cleaning the Optics (Diffusion Model

Only) on page 70. The optical surfaces of the flow-through model

should only be cleaned by a Vaisala service center.

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USER’S GUIDE 1
Table of Contents 3
CHAPTER 4 4
CHAPTER 5 5
CHAPTER 6 5
CHAPTER 7 5
APPENDIX A 6
APPENDIX B 6
List of Figures 7
List of Tables 9
GENERAL INFORMATION 11
ESD Protection 12
Recycling 13
Trademarks 13
Regulatory Compliances 13
Warranty 13
PRODUCT OVERVIEW 15
User Configurable CO 16
Measurement 16
GMP343 Transmitter Components 16
Principle of Operation 17
Optics Heating 18
Gas Sampling 18
Sampling System 19
Optional Accessories 20
Using MI70 as a Display 22
Using MI70 in Recording 23
INSTALLATION 25
Wiring of the Junction Box 27
OPERATION 29
Opening a Terminal Connection 30
Operation modes of the GMP343 32
Measurement Units 33
Interval 34
Outputting the Reading Once 34
Serial Communication Settings 36
Formatting the Message 37
Setting Time 38
Networking Operation 39
Open and Close 40
Setting Echoing Mode 40
Linearization 42
Measurement Data Filtering 43
Averaging Filter 44
Smoothing Filter 44
Setting the Median Filter 45
Setting the Averaging Filter 46
Setting the Smoothing Filter 46
Oxygen Compensations 47
Oxygen Compensation Mode 50
Pressure Compensation ON/OFF 52
Analog Output Hardware 54
Output Range 55
Concentration Range 56
Setting the Low Limit of the 56
Testing the Analog Output 57
Commands 59
Error Messages 60
Command List 61
Showing the Parameters 61
Software Version Information 61
Memory Handling 62
Resetting the Transmitter 62
CALIBRATION AND ADJUSTMENT 63
Calibration (Checking) 64
Adjustment in 1...2 Points 66
Adjustment in 3...8 Points 67
MAINTENANCE 71
(Diffusion Model Only) 72
0704-021 73
Error States 74
Technical Support 75
Product Returns 75
TECHNICAL DATA 77
Humidity, and Oxygen 78
Response time (90 %) 79
Inputs and Outputs 80
Operating Conditions 81
Materials 82
Spare Parts and Accessories 82
DIMENSIONS 83
GMP343 (Flow-through) 84
GMP343 (Diffusion) 85
Calibration Cap 86
Mounting Flange 87
Junction Box 88
Mounting Bracket 89
LIST OF COMMANDS 91
Filtering Commands 92
Device Handling Commands 92
Calibration Commands 93
Advanced Measurement Commands 93
*M210514EN* 94

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Vaisala GMP343 User Manual Page 71

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