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-E...
- Page 2 PUBLISHED BY Vaisala Oyj Phone (int.): +358 9 8949 1 P.O. Box 26 Fax: +358 9 8949 2227 FI-00421 Helsinki Finland Visit our Internet pages at http://www.vaisala.com/ © Vaisala 2008 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder.
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Page 3: Table Of Contents
________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION................3 About This Manual ..............3 Version Information ............... 3 Related Manuals ..............3 General Safety Considerations ..........4 Feedback................4 Product Related Safety Precautions ........4 ESD Protection ................. 5 Recycling .................. 5 Warranty.................. - Page 4 User's Guide ______________________________________________________________________ CHAPTER 5 MAINTENANCE....................25 Replacing the Probe...............25 Transmitter with Integrated Probe (Wall Model)....25 Transmitter with Remote Probe...........25 Check and Calibration............26 Comparison with Calibrated Probe........26 Calibrator GMK220..............27 On-site Checking and Adjusting with Reference Gas and GM70 Hand-Held Meter ............27 Two-Point Adjustment Procedure........28 One-Point Adjustment Procedure........30 Technical Support ..............32...
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Page 5: Chapter 1 General Information
Chapter 1 ________________________________________________________ General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the product. About This Manual This manual provides information for installing, operating, and maintaining Carbon Dioxide Transmitter Series GMT220. Version Information Table 1 Manual Revisions Manual Code Description... -
Page 6: General Safety Considerations
User's Guide ______________________________________________________________________ General Safety Considerations Throughout the manual, important safety considerations are highlighted as follows: Warning alerts you to a serious hazard. If you do not read and follow WARNING instructions very carefully at this point, there is a risk of injury or even death. -
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. However, it is possible to damage the product 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. 6 ___________________________________________________________________ M010022EN-E...
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Page 9: Chapter 2 Product Overview
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 CO in industrial applications. The CARBOCAP sensor is silicon based and its operation is based on the NDIR Single-Beam Dual-Wavelength principle. - Page 10 User's Guide ______________________________________________________________________ The following numbers refer to Figure 1 on page 7: Transmitter cover Transmitter housing Integrated probe (interchangeable) Printed protective film Tightening screw Cable gland (I.D. 6 mm) 0807-033 Figure 2 GMT220 with Probe Installed Remotely The following numbers refer to Figure 2 above: Remote probe (interchangeable) Probe cable (2m) Clamping sleeve...
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Page 11: Led Indicators And Optional Display
Chapter 2 __________________________________________________________ Product Overview LED Indicators and Optional Display The GMT220 series transmitter has, as a standard, three light indicators on the cover plate: (see OPERATION, LEVEL 1 LEVEL 2 Figure 3). - The green LED is lit when the power is connected. OPERATION - The red are lit if the relay setting is reached, for... - Page 12 User's Guide ______________________________________________________________________ This page intentionally left blank. 10 __________________________________________________________________ M010022EN-E...
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Page 13: Chapter 3 Installation
Chapter 3 _______________________________________________________________ Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install this product. Wall Mounting Mount the wall model transmitter or the remote probe into a place representing the environment to be measured. 0807-035 Figure 4 Mounting the Transmitter... -
Page 14: Duct Or Channel Mounting
User's Guide ______________________________________________________________________ The following numbers refer to Figure 4 on page 11: Attach the mounting plate to the wall with screws. Press down the transmitter so that it slides along the rails of the mounting plate. Duct or Channel Mounting When the probe is installed in a duct or channel, it is recommended to use the optional mounting flange (GM45156SP). -
Page 15: Connections
Chapter 3 _______________________________________________________________ Installation Connections To connect the GMT220: Connect the nominal 24 V supply terminals (+) and (-) on the motherboard (right-hand side, see Figure 6). Connect the analog output (see Figure 6) as follows: Terminal 0: the common wire (-) Terminal V: voltage output signal (+) Terminal mA:... -
Page 16: Power Supply Requirements
User's Guide ______________________________________________________________________ The following numbers refer to Figure 6 on page 13: Current output jumper (4 mA) Relay jumpers L1 and L2 A, B, C and D: Not intended for customer use Relay 2 terminals Relay 4 terminals Serial port Power supply terminals Output terminals Power Supply Requirements... -
Page 17: Relays
Chapter 3 _______________________________________________________________ Installation 0807-038 Figure 7 AC Connections Relays The relay output wiring is done at the left-hand side terminals on the motherboard, see Figure 6 on page 13. When the relay trigger point is exceeded, the relay switches ON. This function can be inversed by disconnecting the corresponding relay jumper (L1 or L2). - Page 18 User's Guide ______________________________________________________________________ This page intentionally left blank. 16 __________________________________________________________________ M010022EN-E...
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Page 19: Chapter 4 Operation
Chapter 4 ________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate this product. Getting Started 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) Remember to save the settings after each command. NOTE Serial Commands Table 4 Serial Commands Command Description... -
Page 21: Setting Relay Trigger Points
Chapter 4 ________________________________________________________________ Operation Setting Relay Trigger Points The relays of the transmitter turn when the CO content reaches the predefined trigger point. There are two trigger points for both relays. The higher limit activates the relay and the lower deactivates it. -
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. Pressure values in different altitudes are shown in Table 5 on page 20. -
Page 23: Display Setting
Chapter 4 ________________________________________________________________ Operation Example of setting desired temperature (25 °C): >MF_TEMP 250 MF_TEMP=250 > Save the settings: MAIN_SAVE F<cr> Display Setting The display operation mode, display accuracy and probe temperature can be set by using the following command: MF_DMODE x↵ where: x = 0 (zero)/1/2/3/7/8/9 0= no display 1= ppm-reading with one decimal... -
Page 24: Error States
User's Guide ______________________________________________________________________ Example: >mf_out_I_mode 0 MF_OUT_I_MODE=0 >mf_out_I_mode 1 MF_OUT_I_MODE=1 Save the settings: MAIN_SAVE F ↵ Error States The GM220 series transmitter goes through a continuous self- diagnostic procedure. If any problems occur, it displays a corresponding error message. A transmitter without a display indicates errors by blinking the three LED lights on the cover. -
Page 25: Error Indication In Transmitters Without Display
Chapter 4 ________________________________________________________________ Operation Error Indication in Transmitters without Display Error codes are cabled by blinking a message with short flashes of the LED lights. LEDs are situated on the cover of the transmitter. The green is blinking when a non-critical error occurs (no effect OPERATION on relays). - Page 26 User's Guide ______________________________________________________________________ This page intentionally left blank. 24 __________________________________________________________________ M010022EN-E...
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Page 27: Chapter 5 Maintenance
Chapter 5 ______________________________________________________________ Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the product. Replacing the Probe The probe on the transmitter can be changed and replaced if necessary. Transmitter with Integrated Probe (Wall Model) To replace the integrated probe, do the following: Open the cover Loosen the tightening screw on the transmitter body (see Figure... -
Page 28: Check And Calibration
User's Guide ______________________________________________________________________ All the calibration electronics are in the probe. The new probe is automatically identified by the control electronics of the transmitter. Disconnection of the probe causes an error and switches the relays NOTE OFF. Check and Calibration There are three ways to check the transmitter and calibrate it. -
Page 29: Calibrator Gmk220
Chapter 5 ______________________________________________________________ Maintenance 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 30: Two-Point Adjustment Procedure
User's Guide ______________________________________________________________________ Compare the readings of the GM70 and the transmitter probe to be checked. If there is need for an adjustment, please contact Vaisala Service Center or adjust the probe according to the instructions in sections Two-Point Adjustment Procedure on page 28 and One- Point Adjustment Procedure on page 30. - Page 31 Chapter 5 ______________________________________________________________ Maintenance Connect the tubing to the bottom port of the adapter. Connect the adapter with the tubing to the flow meter, the pressure regulator and further to the low-end reference gas bottle. The side port of the adapter is left open for gas outflow. Let the low end reference gas flow and stabilize with a flow rate of about 0.6 l/min.
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Page 32: One-Point Adjustment Procedure
User's Guide ______________________________________________________________________ Let the high end reference gas flow and stabilize with a flow rate of 0.6 l/min. Follow the reading of GM70, and after it has stabilized, wait for 6 more minutes. Press with the stabilized reading in the higher reference READY concentration. - Page 33 Chapter 5 ______________________________________________________________ Maintenance Let the reference gas flow and stabilize with a flow rate of 0.6 l/min. Follow the reading of GM70, and after it has stabilized, wait for 6 more minutes. Take out the screw from the GM70 probe handle to expose the adjustment button (see Figure 11 on page 29).
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Page 34: Technical Support
User's Guide ______________________________________________________________________ Technical Support For technical questions, contact the Vaisala technical support: E-mail helpdesk@vaisala.com +358 9 8949 2790 If the product needs repair, please follow the instructions below to speed up the process and to avoid extra costs to you. Read the warranty information. -
Page 35: Vaisala Service Centers
Chapter 5 ______________________________________________________________ Maintenance Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. See contact information below. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information. - Page 36 User's Guide ______________________________________________________________________ This page intentionally left blank. 34 __________________________________________________________________ M010022EN-E...
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Page 37: Technical Data
Chapter 6 ____________________________________________________________ Technical Data CHAPTER 6 TECHNICAL DATA This chapter provides the technical data of the Product. Technical specifications Measuring range GMT221 0 ... 2% CO 0 ... 3% CO 0 ... 5% CO 0 ... 10% CO 0 ... 20% CO GMT222 0 ... -
Page 38: Inputs And Outputs
User's Guide ______________________________________________________________________ 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 Inputs and outputs Outputs 0 ... 20 mA or 4 ... 20 mA and 0 ... -
Page 39: Electromagnetic Compatibility
Chapter 6 ____________________________________________________________ Technical Data Electromagnetic compatibility The GMT221 and GMT222 transmitters comply with the following standards: EN 61326-1, Electrical equipment for measurement, control and laboratory use - EMC requirements - Generic environment. [CISPR16/22 Class B, EN/IEC 61000-4-2, EN/IEC 61000-4-3, EN/IEC 61000-4-4, EN/IEC 61000-4-5, EN/IEC 61000-4-6] Accessories Description... -
Page 40: Dimensions In Mm (Inches)
User's Guide ______________________________________________________________________ Dimensions in mm (inches) 0807-040 Figure 12 Transmitter 38 __________________________________________________________________ M010022EN-E... - Page 41 Chapter 6 ____________________________________________________________ Technical Data 0807-041 Figure 13 Mounting Plate 0807-042 Figure 14 Probe GMP221 VAISALA _______________________________________________________________________ 39...
- Page 42 User's Guide ______________________________________________________________________ 0807-043 Figure 15 Probe GMP222 0807-044 Figure 16 Mounting Flange GM45156SP 40 __________________________________________________________________ M010022EN-E...
- Page 44 www.vaisala.com *M010022EN*...