Vaisala CARBOCAP GMT220 SERIES User Manual
Carbon dioxide transmitter
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Summary of Contents for Vaisala CARBOCAP GMT220 SERIES
- Page 1 USER'S GUIDE Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMT220 M010022EN-F...
- Page 2 English versions are applicable, not the translations. The contents of this manual are subject to change without prior notice. This manual does not create any legally binding obligations for Vaisala towards customers or end users. All legally binding obligations and agreements are included exclusively in the applicable supply contract or the General Conditions of Sale and General Conditions of Service of Vaisala.
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Page 3: Table Of Contents
Setting Relay Trigger Points ..........21 Pressure Compensation............22 Temperature Setting ............23 Display Setting ..............23 Error States................24 Non-critical and Fatal Errors ..........24 Error Indication in Transmitters without Display....25 Error Messages ..............25 VAISALA ________________________________________________________________________ 3... - Page 4 USER'S GUIDE____________________________________________________________________ CHAPTER 5 MAINTENANCE....................27 Replacing the Probe...............27 Transmitter with Integrated Probe (Wall Model)....27 Transmitter with Remote Probe...........27 Check and Calibration............28 Comparison with Calibrated Probe........28 Calibrator GMK220..............28 On-site Checking and Adjusting with Reference Gas and GM70 Hand-Held Meter ............29 Two-Point Adjustment Procedure........30 One-Point Adjustment Procedure........32 Technical Support ..............33 Product Returns..............33...
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Page 5: Chapter 1 General Information
- Chapter 6, Technical Data, provides the technical data of the Product. Version Information Table 1 Manual Revisions Manual Code Description M010022EN-D August 2008 M010022EN-E October 2008 - Updated technical specification M010022EN-F March 2012 - Updated error messages VAISALA ________________________________________________________________________ 5... -
Page 6: Related Manuals
Table 2 Related Manuals Manual Code Manual Name ® M010139EN Vaisala CARBOCAP Hand-Held Carbon Dioxide Meter GM70 User's Guide Documentation Conventions Throughout the manual, important safety considerations are highlighted as follows: Warning alerts you to a serious hazard. If you do not read and follow... -
Page 7: Esd Protection
Chapter 1 ________________________________________________________ General Information ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. It is possible to damage the product, however, by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. - Page 8 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 8 ___________________________________________________________________ M010022EN-F...
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Page 9: Chapter 2 Product Overview
CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the Carbon Dioxide Transmitter Series GMT220. GMT220 Transmitter Parts Vaisala’s GMT220 transmitters are versatile instruments for measuring ® in industrial applications. The CARBOCAP sensor is silicon based and its operation is based on the NDIR Single-Beam Dual-Wavelength principle. -
Page 10: Figure 2 Gmt220 With Probe Installed Remotely
USER'S GUIDE____________________________________________________________________ 0807-033 Figure 2 GMT220 with Probe Installed Remotely The following numbers refer to Figure 2 above: Remote probe (interchangeable) Probe cable (2m or 10m) Clamping sleeve 10 = Cable clamp 11 = Pin connector for an optional serial COM adapter 12 = Probe mounting clips (optional) 13 =... -
Page 11: Led Indicators And Optional Display
Figure 3 LED Indicators and Optional Display For GMP221 probe, the display shows percentage values with two decimal accuracy, for example 0.31 %. For GMP222 probe, the display shows ppm values rounded up to the nearest 10 ppm. VAISALA _______________________________________________________________________ 11... - Page 12 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 12 __________________________________________________________________ M010022EN-F...
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Page 13: Chapter 3 Installation
Figure 4 Mounting the Transmitter The following numbers refer to Figure 4 above: Attach the mounting plate to the wall with screws. Press down the transmitter so that it slides along the rails of the mounting plate. VAISALA _______________________________________________________________________ 13... -
Page 14: Duct Or Channel Mounting
USER'S GUIDE____________________________________________________________________ Duct or Channel Mounting When the probe is installed in a duct or channel, it is recommended to use the optional mounting flange (GM45156SP). 1. Drill a hole with minimum diameter of 22 mm in the wall. 2. Attach the flange onto the duct with four screws so that the gasket ring seals the attachment. -
Page 15: Connections
4...20mA is chosen, connect the jumper (default). If the range of 0...20 mA is chosen, disconnect the jumper. Connecting the power leads to the output terminals can seriously CAUTION damage the product. 0807-037 Figure 6 Electrical Connections and Jumpers VAISALA _______________________________________________________________________ 15... -
Page 16: Power Supply Requirements
USER'S GUIDE____________________________________________________________________ The following numbers refer to Figure 6 on page 15: Current output jumper (4 mA) Relay jumpers L1 and L2 A, B, C and D: Not intended for customer use Relay 2 terminals Relay 1 terminals Serial port Power supply terminals Output terminals Power Supply Requirements... -
Page 17: Relays
The points can also be changed with a PC and the optional serial COM adapter 19040GM, see section Setting Relay Trigger Points on page 21. The COM adapter 19040GM, see Figure 8 below, can be ordered from Vaisala. For order information, see section Accessories on page 37. 0808-001... - Page 18 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 18 __________________________________________________________________ M010022EN-F...
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Page 19: Serial Communication
Serial Cable Settings The GMT220 is linked to PC via a serial cable equipped with a COM adapter (optional part 19040GM, can be ordered from Vaisala). Connect the serial cable to your PC's serial port and transmitter's serial port located in the motherboard, see Figure 9 below. -
Page 20: Serial Commands
USER'S GUIDE____________________________________________________________________ Set the serial settings according to Table 3 below. Table 3 Serial Settings Baud rate 9600 Parity None Data bits Stop bits Flow control (none) NOTE Remember to save the settings after each command. Serial Commands Table 4 Serial Commands Command Description... -
Page 21: Setting Relay Trigger Points
1 or 2 (number of the relay) yyy = trigger point (CO content in ppm) Example of setting the lower trigger limit of the relay 1: >MF_R1_Low 900 MF_R1_LOW=900.000000 > Save the settings: MAIN_SAVE F<cr> VAISALA _______________________________________________________________________ 21... -
Page 22: Pressure Compensation
USER'S GUIDE____________________________________________________________________ Pressure Compensation For achieving the most accurate measurements in high altitudes where the barometric pressure is lower than in the sea level, the actual pressure value can be set to the GMT220's software. The factory setting is 1013 hPa. -
Page 23: Temperature Setting
0= no display 1= ppm-reading with one decimal 2= %-reading with two decimals 3=reading with no decimals 7=ppm-reading with no decimal 8= ppm-reading with 10 ppm accuracy >mf_dmode 7 MF_DMODE=07 00 00 00 00 Save the settings: MAIN_SAVE F<cr> VAISALA _______________________________________________________________________ 23... -
Page 24: Error States
In all error cases, check first that the probe is connected properly, then reset the transmitter by disconnecting it. In case of a constant error, please contact Vaisala Service Center or a local Vaisala representative (see sections Technical Support on page 33 and Product Returns on page 33). -
Page 25: Error Indication In Transmitters Without Display
Center Er 03 Main board memory Contact Vaisala Service Fatal problem Center Er 04 Probe contact failure Contact Vaisala Service Fatal Center Er 05 Probe contact failure Contact Vaisala Service Fatal Center Er 06 Probe contact failure Contact Vaisala Service... - Page 26 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 26 __________________________________________________________________ M010022EN-F...
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Page 27: Chapter 5 Maintenance
Install a spare probe and tighten the clamping sleeve. All the calibration electronics are in the probe. The new probe is automatically identified by the control electronics of the transmitter. NOTE Disconnection of the probe causes an error and switches the relays OFF. VAISALA _______________________________________________________________________ 27... -
Page 28: Check And Calibration
(see sections Technical Support on page 33 and Product Returns on page 33). Calibrator GMK220 The Vaisala GMK220 calibrator is intended for spot checking and two- point calibration of the GMT220 series probes. The calibration parameters are stored to the nonvolatile memory of the probes. Contact Vaisala's representative to get more information about the GMK220. -
Page 29: On-Site Checking And Adjusting With Reference Gas And Gm70 Hand-Held Meter
0.4...1.0 l/min through the adapter chamber. If an adjustment is needed, it can be carried out by a user with a Vaisala's hand-held carbon dioxide meter GM70. Probes can also be sent to Vaisala Service Centers (see sections Technical Support on page 33 and Product Returns on page 33) to be calibrated. -
Page 30: Two-Point Adjustment Procedure
USER'S GUIDE____________________________________________________________________ - Flow meter - Field check adapter (Vaisala order code: 26150GM) - Flexible tubing with 3 mm (1/8 inch) inner diameter Two-Point Adjustment Procedure Please take special care regarding the following when carrying out the CAUTION adjustment: - Check that you give the correct reference concentrations in the correct units. -
Page 31: Figure 11 Location Of The Gm70 Adjustment Button
The analyzed CO concentration of the reference gas is typically printed on the bottle. Take care that you give the correct value in correct units, as you cannot revert to the earlier values after accepting the new values. Press VAISALA _______________________________________________________________________ 31... -
Page 32: One-Point Adjustment Procedure
USER'S GUIDE____________________________________________________________________ Confirm the adjustment, press . By pressing you return to adjustment mode display. (If the difference between the two references is less than 20% of the measuring range of the probe, adjustment cannot be done). BACK-EXIT Adjustment is complete. Press to return to the basic display. -
Page 33: Technical Support
Shut off the gas flow. Replace the screw onto the adjusting button. Technical Support For technical questions, contact the Vaisala technical support by e-mail at helpdesk@vaisala.com. Provide at least the following supporting information: - Name and model of the product in question... - Page 34 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 34 __________________________________________________________________ M010022EN-F...
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Page 35: Chapter 6 Technical Data
+ 0.15 % of reading / hPa (output increases when pressure rises, default 1013 hPa (1 atm)) Long-term stability < ± 5 %FS / 2 years Response time (63%) GMT221 20 seconds GMT222 30 seconds Warm-up time 30 seconds 15 minutes full specification VAISALA _______________________________________________________________________ 35... -
Page 36: Inputs And Outputs
USER'S GUIDE____________________________________________________________________ Inputs and outputs Outputs 0 ... 20 mA or 4 ... 20 mA and 0 ... 10 V Resolution of analog outputs 12 bits Recommended external load max. 400 current output voltage output min. 1 k Two pre-or user-defined relay outputs Relay contacts max. -
Page 37: Electromagnetic Compatibility
210848GMSP Serial COM adapter 19040GM Hand-held carbon dioxide meter GM70 Calibrator for the probes GMK220 In-soil adapter 211921GM Wall mounting plate GM45160 Probe cap for GMP221 GM45129 Probe cap for GMP222 GM45172 Connection cable for MI70 GMA70 VAISALA _______________________________________________________________________ 37... -
Page 38: Dimensions In Mm (Inches)
USER'S GUIDE____________________________________________________________________ Dimensions in mm (inches) 0807-040 Figure 12 Transmitter 38 __________________________________________________________________ M010022EN-F... -
Page 39: Figure 13 Mounting Plate
Chapter 6 ____________________________________________________________ Technical Data 0807-041 Figure 13 Mounting Plate 0807-042 Figure 14 Probe GMP221 VAISALA _______________________________________________________________________ 39... -
Page 40: Figure 15 Probe Gmp222
USER'S GUIDE____________________________________________________________________ 0807-043 Figure 15 Probe GMP222 0807-044 Figure 16 Mounting Flange GM45156SP 40 __________________________________________________________________ M010022EN-F... - Page 41 Chapter 6 ____________________________________________________________ Technical Data VAISALA _______________________________________________________________________ 41...
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