Vaisala CARBOCAP GMP343 User manual

USER'S GUIDE
Vaisala CARBOCAP®Carbon Dioxide Probe
GMP343
M210514EN-C

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Table of Contents
CHAPTER 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Version Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
General Safety Considerations . . . . . . . . . . . . . . . . . . . . .10
Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
CHAPTER 2
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Introduction to GMP343 . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
GMP343 Transmitter Components . . . . . . . . . . . . . . . . . . .14
User Configurable CO2 Measurement . . . . . . . . . . . . . . . .15
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Optics Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Gas Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Diffusion Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Flow-Through Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Sampling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Soil Adapter Kits for In-Soil Applications . . . . . . . . . . . . . .19
MI70 Indicator Connection . . . . . . . . . . . . . . . . . . . . . . . . .19
Recharging the Battery Pack. . . . . . . . . . . . . . . . . . . . 19
Structure of the MI70 Indicator . . . . . . . . . . . . . . . . . . 20
Using MI70 as a Display . . . . . . . . . . . . . . . . . . . . . . . 21
Introduction of Function Keys and Menu Structure. 21
Initialization of MI70 . . . . . . . . . . . . . . . . . . . . . . . . 21
Navigation in Menu. . . . . . . . . . . . . . . . . . . . . . . . . 22
Using MI70 in Recording . . . . . . . . . . . . . . . . . . . . . . . 23
Transferring Recorded Data to PC . . . . . . . . . . . . . . . 23
CHAPTER 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Wiring of the Junction Box . . . . . . . . . . . . . . . . . . . . . . . . .27

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CHAPTER 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Connecting GMP343 to PC . . . . . . . . . . . . . . . . . . . . . . . . . .29
Connection Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Installing the Driver for the USB Cable . . . . . . . . . . . . 29
Opening a Terminal Connection . . . . . . . . . . . . . . . . . . . .30
Operation modes of the GMP343 . . . . . . . . . . . . . . . . . . . . .32
Getting the Measurement Message . . . . . . . . . . . . . . . . . . .33
Measurement Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Starting the Continuous Outputting . . . . . . . . . . . . . . . . . .33
Stopping the Continuous Outputting . . . . . . . . . . . . . . . . .33
Setting the Continuous Outputting Interval . . . . . . . . . . . .34
Outputting the Reading Once . . . . . . . . . . . . . . . . . . . . . . .34
Setting the Serial Interface Measurement Mode . . . . . . . .35
Setting Communication Hardware . . . . . . . . . . . . . . . . . . .35
Serial Communication Settings . . . . . . . . . . . . . . . . . . . . .36
Formatting the Measurement Message . . . . . . . . . . . . . . . .36
Formatting the Message . . . . . . . . . . . . . . . . . . . . . . . . . .36
Setting Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Networking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Setting the Transmitter Address . . . . . . . . . . . . . . . . . . . . .39
Open and Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Setting Echoing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Preparation for Network Operation . . . . . . . . . . . . . . . . . .40
Commands during Network Operation . . . . . . . . . . . . . . . .41
Measurement Range, Data Filtering and Linearization . . .41
Setting the Measurement Range . . . . . . . . . . . . . . . . . . . .41
Measurement Data Filtering . . . . . . . . . . . . . . . . . . . . . . . .42
Median Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Averaging Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Smoothing Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
How the Filtering Affects the Response Time . . . . . . . 44
Setting the Median Filter . . . . . . . . . . . . . . . . . . . . . . . . . .45
Setting the Averaging Filter . . . . . . . . . . . . . . . . . . . . . . . .45
Setting the Smoothing Filter . . . . . . . . . . . . . . . . . . . . . . . .45
Flushing the Filters (Resynchronization) . . . . . . . . . . . . . .46
Linearization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Setting the Linearization ON/OFF . . . . . . . . . . . . . . . . . . .46
Temperature, Pressure, Relative Humidity, and Oxygen
Compensations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Temperature Compensation ON/OFF . . . . . . . . . . . . . . . .48
Setting the Oxygen Concentration . . . . . . . . . . . . . . . . . . .49
Setting Oxygen When the Device Is in POLL-mode . . 49
Oxygen Compensation Mode . . . . . . . . . . . . . . . . . . . . . . .49
Setting the Ambient Pressure (hPa) . . . . . . . . . . . . . . . . . .50
Setting Pressure When the Device Is in POLL-mode . 50
Pressure Compensation ON/OFF . . . . . . . . . . . . . . . . . . .51
Setting Ambient Relative Humidity . . . . . . . . . . . . . . . . . . .51
Setting Humidity When the Device Is in POLL-mode. . 51
Relative Humidity Compensation ON/OFF . . . . . . . . . . . .52

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Setting and Testing the Analog Outputs . . . . . . . . . . . . . .52
Analog Output Hardware . . . . . . . . . . . . . . . . . . . . . . . . . .53
Setting the Limit of the Current Output Range . . . . . . . . . .53
Setting the High Limit of the Voltage Output Range . . . . .54
Setting the High Limit of the Concentration Range . . . . . .54
Setting the Low Limit of the Concentration Range . . . . . . .55
Setting the Analog Output Overrange Clip . . . . . . . . . . . . .55
Testing the Analog Output . . . . . . . . . . . . . . . . . . . . . . . . .56
Setting the Analog Output Error Level . . . . . . . . . . . . . . . .56
Device Information and Other General Commands . . . . . .57
Device Information List . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Show the Output Quantities . . . . . . . . . . . . . . . . . . . . . . . .57
Linear and Multipoint Corrections . . . . . . . . . . . . . . . . . . .58
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Command List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Showing the Parameters . . . . . . . . . . . . . . . . . . . . . . . . . .59
Software Version Information . . . . . . . . . . . . . . . . . . . . . . .60
Memory Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Reverting the Factory Parameters . . . . . . . . . . . . . . . . . . .60
Saving the Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Setting the Optics Heating ON/OFF . . . . . . . . . . . . . . . . . . .61
Resetting the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . .61
CHAPTER 5
CALIBRATION AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Calibration Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Factory Calibration and Adjustment . . . . . . . . . . . . . . . . . .64
Calibration and Adjustment by the User . . . . . . . . . . . . . . .64
Calibration (Checking) . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Checking the Compensations . . . . . . . . . . . . . . . . . . . 64
Measurements in Reference Gases . . . . . . . . . . . . . . 65
Adjustment in 1...2 Points . . . . . . . . . . . . . . . . . . . . . . . . .66
Adjustment in 3...8 Points . . . . . . . . . . . . . . . . . . . . . . . . .67
Example of the 2-Point Adjustment Procedure . . . . . . 67
CHAPTER 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Cleaning the Optics (Diffusion Model Only) . . . . . . . . . . . .71
Changing the Filter (Diffusion Model Only) . . . . . . . . . . . .73
Error States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Return Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Vaisala Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

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CHAPTER 7
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Effects of Temperature, Pressure, Relative Humidity,
and Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Response time (90 %) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Spare Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . .82
APPENDIX A
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
GMP343 (Flow-through) . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
GMP343 (Diffusion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Calibration Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Mounting Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
APPENDIX B
LIST OF COMMANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Measurement Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
P, T and RH Compensation Commands . . . . . . . . . . . . . . .92
Device Handling Commands . . . . . . . . . . . . . . . . . . . . . . . .92
Device Information Display Commands . . . . . . . . . . . . . . .92
Calibration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Setting and Testing the Analog Outputs . . . . . . . . . . . . . . .93
Advanced Measurement Commands . . . . . . . . . . . . . . . . .93

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List of Figures
Figure 1 Two Models of GMP343. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Figure 2 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 3 Components of the Sampling System . . . . . . . . . . . . . . . . . . .18
Figure 4 Examples of Optional Accessories. . . . . . . . . . . . . . . . . . . . . .18
Figure 5 Structure of the MI70 Indicator. . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 6 Keyboard of MI70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 7 Mounting GMP343. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 8 Entering Measurement Values. . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 9 The Difference of the Two Filters in Time Response. . . . . . . .44
Figure 10 Optics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Figure 11 GMP343 Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . .81

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List of Tables
Table 1 Manual Revisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Table 2 Wiring Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 3 Communication Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 4 Quantities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Table 5 Modifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Table 6 Averaging Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Table 7 Troubleshooting Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Table 8 Effect of Temperature on Accuracy with Temperature
Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Table 9 Effect of Pressure on Accuracy with Pressure Compensation. . .79
Table 10 Diffusion Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Table 11 Flow-through Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Table 12 List of Spare Parts and Accessories . . . . . . . . . . . . . . . . . . . . . .82

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