Vaisala CARBOCAP GM70 User Manual
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Vaisala CARBOCAP GM70 User Manual

Vaisala CARBOCAP GM70 User Manual

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07/11/2022 15:24
About this document
Version information
This document provides detailed instructions for installing, operating, and maintaining Vaisala CARBOCAP® Handheld
Carbon Dioxide Meter GM70.
Table 1. Document versions (English)
Document code
M010139EN-H
M010139EN-G
Related manuals
Table 1. Related manuals
Document code
M210292EN
M210450EN
M210514EN
M211501EN
M211659EN
M211799EN
M211897EN
Documentation conventions
WARNING! Warning alerts you to a serious hazard. If you do not read and follow instructions carefully at
this point, there is a risk of injury or even death.
CAUTION! Caution warns you of a potential hazard. If you do not read and follow instructions carefully at
this point, the product could be damaged or important data could be lost.
Note highlights important information on using the product.
Tip gives information for using the product more efficiently.
https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687
Date
This manual. Document template and content organization update. Added
information about MI70 battery and device status icons and the calibration
reminder setting. Updated information about data transfer with MI70 Link and
April 2021
stabilization time in adjustment instructions. Specifications and spare part
information updated. Removed references to discontinued products GMT220,
GMM220, GMK220, GMW115, and GMW20.
April 2012
Previous version. New error codes added. General updates implemented.
Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 User's Guide
Vaisala Field Check Adapter 26150GM Quick Reference Guide
Vaisala CARBOCAP® Carbon Dioxide Probe GMP343 User's Guide
Vaisala CARBOCAP® Carbon Dioxide Probe GMP231 User Guide
Vaisala CARBOCAP® Carbon Dioxide, Temperature, and Humidity Transmitter Series GMW90
User's Guide
Vaisala CARBOCAP® Carbon Dioxide Probe GMP251 User Guide
Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 User Guide
PDF extract of GM70 User Guide
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Summary of Contents for Vaisala CARBOCAP GM70

  • Page 1 07/11/2022 15:24 PDF extract of GM70 User Guide About this document Version information This document provides detailed instructions for installing, operating, and maintaining Vaisala CARBOCAP® Handheld Carbon Dioxide Meter GM70. Table 1. Document versions (English) Document code Date Description This manual. Document template and content organization update. Added information about MI70 battery and device status icons and the calibration reminder setting.
  • Page 2 Lists tools needed to perform the task. Indicates that you need to take some notes during the task. Trademarks Vaisala® and CARBOCAP® are registered trademarks of Vaisala Oyj. Windows® is either a registered trademark or trademark of Microsoft Corporation in the United States and other countries.

  • Page 3: Product Overview

    The optional, ready-to-use MI70 Link Microsoft Windows® software, which allows an easy way to handle measurement data using a USB instrument cable or an RS-232 serial communication cable. Using GM70 with Vaisala carbon dioxide probes and transmitters is discussed in the respective User Guides, available at www.vaisala.com.
  • Page 4 Connector to the MI70 indicator Probes The GMP220 series probes can be used with GM70. The table below lists the measuring ranges that can be selected for the probes. Table 1. GMP221 and GMP222 measuring ranges measuring ranges Probe https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 4/39...

  • Page 5: Gm70Pump For Aspirated Sampling

    Safety The Vaisala CARBOCAP® Handheld Carbon Dioxide Meter GM70 delivered to you has been tested for safety and approved as shipped from the factory. Note the following precaution: CAUTION! Do not modify the unit or use it in ways not described in the documentation. Improper modification or use may lead to safety hazards, equipment damage, failure to perform according to specification, or decreased equipment lifetime.

  • Page 6: Mi70 Indicator Parts

    To open menus, press an arrow button and then press the shortcut buttons. To activate a function shown above the shortcut button, press the shortcut button. To navigate in the menus, press the arrow buttons. Installing and recharging MI70 batteries Vaisala recommends using the rechargeable battery pack (item code 26755) with GM70, instead of alkaline batteries. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687...
  • Page 7 If the indicator is powered on, a notification about not being able to charge the battery is shown on the MI70 screen. You can order replacement batteries from Vaisala (item code 26755). To keep the rechargeable MI70 battery in good working condition, recharge MI70 monthly if the indicator is not in use.

  • Page 8: Changing The Rechargeable Battery Pack

    3. Connect the black connector of the new battery pack. Make sure the position of the connector is as shown in the following figure (red and black wires are on the upper edge of the connector). Do not push the connector with conducting material. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 8/39...
  • Page 9 07/11/2022 15:24 PDF extract of GM70 User Guide 4. Place the battery pack in the compartment. 5. Close the back plate and tighten the screw. 6. Recharge the indicator before use. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 9/39...

  • Page 10: Measuring Carbon Dioxide

    To use GM70PUMP for pump-aspirated sampling: 1. Connect one end of the sampling tube to the gas inlet (marked with IN), if using a tube. 2. Connect the black cable of GM70PUMP to the MI70 indicator's connector port. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 10/39...
  • Page 11 Measuring multiple parameters simultaneously MI70 is a generic indicator that can be used with Vaisala interchangeable dew point (DM70 series), humidity (HM70 series), carbon dioxide (GM70 series), and moisture in oil (MM70 series) probes. Two different types of probes can be connected to MI70 simultaneously.
  • Page 12 07/11/2022 15:24 PDF extract of GM70 User Guide 7. To achieve the most accurate measurements, set the actual temperature value measured with the temperature and humidity probe to GM70. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 12/39...

  • Page 13: Displays And Menus

    To get the curve of the other selected parameters, press Next. To get the curves of all the parameters, press Next until the text All appears, and then select All. To zoom in and out, press the up/down arrow buttons. To move back and forward in the timeline, use the left/right arrow buttons. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 13/39...
  • Page 14 4. Select an item with the button. 5. To return to the previous level, press 6. To return to normal operation, press Exit. Figure 1. GM70 menus Main menu Display menu Functions menu Recording/Viewing menu Environment menu Settings menu https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 14/39...
  • Page 15 The battery can no longer be charged and must be replaced. If the indicator is powered on, a notification about not being able to charge the battery is shown on the MI70 screen. You can order replacement batteries from Vaisala (item code 26755). Recording icon. Shows that the measurements are being recorded. The bar shows for how long the recording will continue (a set time limit or until the memory runs out).

  • Page 16: Setting Actual Pressure Value And Unit

    If you are using HMP75 or some other humidity probe, the temperature information can be linked to compensate the CO reading of GM70. For more information on simultaneous measurements, see Measuring multiple parameters simultaneously. Display settings Figure 1. Display setting menus https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 16/39...

  • Page 17: Holding And Saving The Display

    1. In the basic display, select Hold/Save. Alternatively, select Main menu > Display > Hold/Save display > Hold. 2. Press Save. 3. To view the saved display, go to basic display and select Record > View recorded data. Alternatively, select Main menu > Recording/Viewing > View recorded data. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 17/39...

  • Page 18: User Interface Settings

    1. Open the menu by pressing Open. 2. Select Settings and then press 3. Select User interface and then press 4. Select Language and press Set. 5. Choose the correct language and press Select. 6. To return to the basic display, press Exit. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 18/39...
  • Page 19 Select. To confirm your selection, press Yes. Otherwise press No and continue from step 4. 7. To return to the basic display, press Exit. Figure 1. Hold/Save replaced by Pressure (P) shortcut Hold/Save shortcut key replaced by P https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 19/39...

  • Page 20: Date And Time

    Open. 2. Select Settings and press 3. Select Calibr. reminder and press Set. 4. Choose a reminder interval option and press Select. 5. To return to the basic display, press Exit. Device information Figure 1. Device information menu https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 20/39...

  • Page 21: Factory Settings

    Software version of the MI70 indicator Serial number of the MI70 indicator Software version of the probe Location of the last adjustment (alternatives: Vaisala, GM70, or GMK220) Factory settings Factory calibration of the probe cannot be reverted if adjustment is made (see Calibration and adjustment by user).
  • Page 22 Selecting and scaling analog output To get analog measurement data, an analog signal cable is needed (Vaisala item code 27168ZZ). One scalable voltage signal channel 0 … 1.0 V is available. You can scale the output to any output range but it is recommended to have the scaling within the probe's measuring range to get accurate measurements.
  • Page 23 The estimate of available free space is calculated for the current number of active parameters. If you change the displayed parameters, the estimate will change accordingly. Clearing data memory 1. Open the menu by pressing Open. 2. Select Recording/Viewing and press https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 23/39...
  • Page 24 Both logged and real-time measurement data can be transferred. PC data transfer requires the MI70 Link Windows® software and a Vaisala USB cable (item code 219687). An RS-232 serial connection cable can also be used. The MI70 Link software is available from the Vaisala website: www.vaisala.com/mi70link.
  • Page 25 Value of connector I is shown on the upper row of the display. Value of connector II is on the lower row of the display. The difference of the readings is shown on the lowest row. 6. Compare the readings. In case there is a need for an adjustment, send the transmitter to Vaisala to be adjusted. For contact information, see Technical support.
  • Page 26 The length of the suitable calibration interval may vary depending on the conditions and frequency of use. Factory calibration and adjustment It is recommended to send the GMP220 series probes to a Vaisala Service Center for accurate calibration and adjustment. For contact information, see www.vaisala.com/support.

  • Page 27: Adjustment With Reference Gases

    For the adjustment procedure with gases, you need the probe that is going be adjusted, accurate reference gas(es), a pressure regulator, a flow meter, a field check adapter (can be ordered from Vaisala) and flexible tubing with 3 mm (1/8 in) inner diameter. For information on available accessories and ordering, see Spare parts and accessories.
  • Page 28 Give the correct reference concentrations in the correct units Wait until the reading has fully stabilized before accepting the reading. CAUTION! Reverting to factory settings is not possible after the adjustment. See also Field Check Adapter 26150GM Quick Reference Guide (M210450EN), available at www.vaisala.com/gm70. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 28/39...
  • Page 29 Adjust to select the adjustment method. 6. Select To same as CO2, press Select and then Yes. 7. The adjustment is complete. Press Back and Exit to return to the basic display. 8. Replace the screw onto the adjusting button. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 29/39...

  • Page 30: Maintenance

    Unscrew the probe fastener (about 5 turns) Pull the probe out firmly. Changing the probe filter Replacement filters can be ordered from Vaisala. For ordering information, see Spare parts and accessories. 1. Remove the plastic grid by pulling it out.
  • Page 31 This message can be caused by a considerable Difference too big high drifting error of the probe. Contact Vaisala (see Technical support). The reference concentration can be at the highest 110 % of the maximum value of the probe's measuring range.

  • Page 32: Technical Specifications

    0 … 100 %RH, non-condensing Table 3. GM70 compliance Property Description/Value EN 61326-1:1997 + Am1:1998 + Am2:2001, Electrical EMC compatibility equipment for measurement, control and laboratory use - EMC requirements; generic environment Including repeatability, non-linearity and calibration uncertainty. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 32/39...
  • Page 33 Better than 5 h at +20 ˚C (+68 °F) without load Data logging use (one probe) Up to 30 days depending on logging interval The specifications apply only when analog output is enabled for the handheld meter. Dimensions https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 33/39...

  • Page 34: Spare Parts And Accessories

    PDF extract of GM70 User Guide Figure 1. GM70 dimensions in mm (in) Spare parts and accessories Information on spare parts, accessories, and calibration products is available online at www.vaisala.com store.vaisala.com. Table 1. GM70 spare parts and accessories Description Item code...
  • Page 35 USB PC connection cable (for use with MI70 Link software) Rechargeable battery for MI70 26755 Calibration adapter for GMP220 series probes 26150GM Nafion™ membrane tubing 212807GM Aspiration pump for GM70 GM70PUMP GM70 replacement handle GMH70 Vaisala MI70 Link software for Windows is available at www.vaisala.com/mi70link. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 35/39...
  • Page 36 07/11/2022 15:24 PDF extract of GM70 User Guide Maintenance and calibration services Vaisala offers comprehensive customer care throughout the life cycle of our measurement instruments and systems. Our factory services are provided worldwide with fast deliveries. For more information, see www.vaisala.com/calibration.

  • Page 37: Technical Support

    07/11/2022 15:24 PDF extract of GM70 User Guide Technical support Contact Vaisala technical support at helpdesk@vaisala.com. Provide at least the following supporting information as applicable: Product name, model, and serial number Software/Firmware version Name and location of the installation site Name and contact information of a technical person who can provide further information on the problem For more information, see www.vaisala.com/support.

  • Page 38: Warranty

    PDF extract of GM70 User Guide Warranty For standard warranty terms and conditions, see www.vaisala.com/warranty. Please observe that any such warranty may not be valid in case of damage due to normal wear and tear, exceptional operating conditions, negligent handling or installation, or unauthorized modifications. Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product.
  • Page 39 07/11/2022 15:24 PDF extract of GM70 User Guide Recycling Recycle all applicable material. Follow the statutory regulations for disposing of the product and packaging. https://docs.vaisala.com/internal/api/webapp/print/3c86a12e-f903-48c3-a995-1fffae38a687 39/39...

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