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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.
License Agreement ..........12 Warranty ..............12 CHAPTER 2 PRODUCT OVERVIEW ............13 ® Introduction to Vaisala CARBOCAP Hand-Held Carbon Dioxide Meter GM70 ..... 13 Basic Features of the GM70....... 13 Interchangeable Probes ........14 Tool for Adjustments .......... 14 Parts Description..........
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USER'S GUIDE ______________________________________________________ CHAPTER 5 BUTTONS, DISPLAYS, AND MENUS ........23 Buttons and Navigation........23 Basic Display............24 Graphical Display..........25 Menus..............25 CHAPTER 6 SETTINGS ................27 Setting Actual Pressure Value and Unit....27 Setting Actual Temperature Value and Unit ..28 Display Settings ............29 Display Units............29 Rounding ............30 Hold/Save Display ..........30 Graphic History ...........30...
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___________________________________________________________________ CHAPTER 9 FIELD CHECKING OF FIXED TRANSMITTERS....43 Field Checking of the Vaisala GMW115 and GMD/W20 Series Transmitters (Diffusion Sampling)..........43 Field Checking of the Vaisala GMD/W20 Series Transmitters (Pump Aspirated Sampling) ..45 Field Checking of the GMT220 or GMM220 (Without a Display) ..........
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USER'S GUIDE ______________________________________________________ CHAPTER 13 TECHNICAL DATA ..............61 GM70 Hand-Held Carbon Dioxide Meter .....61 General ...............61 Electromagnetic Compatibility......61 GMP221/222 Probes..........61 GMH70 Handle, GM70PUMP.........63 MI70 Indicator ............63 Indicator General ..........63 Battery Pack ............64 Accessories............65 Dimensions in mm (inch) ........66 ______________________________________________________ M010139EN-G...
This chapter provides general notes about this manual and the Product. About This Manual This manual provides information for installing, operating, and ® maintaining Vaisala CARBOCAP Hand-Held Carbon Dioxide Meter GM70. Contents of This Manual This manual consists of the following chapters: - Chapter 1, General Information, provides general notes about this manual and the Product.
Note highlights important information on using the product. NOTE Safety ® The Vaisala CARBOCAP Hand-Held Carbon Dioxide Meter GM70 delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions: Do not modify the unit. Improper modification can damage the product CAUTION or lead to malfunction.
Dispose of batteries and the unit according to statutory regulations. Do not dispose of with regular household refuse. Trademarks Vaisala CARBOCAP® is a registered trademark of Vaisala Oyj. Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries.
USER'S GUIDE ______________________________________________________ License Agreement All rights to any software are held by Vaisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement.
CO gas and displays the result in the units of ppm or percentage %. The exceptional stability and reliability performance of the GM70 comes from the advanced silicon based Vaisala CARBOCAP® sensor. Basic Features of the GM70 - Both numerical and graphical displays...
USER'S GUIDE ______________________________________________________ Interchangeable Probes By selecting the right probe you can choose the measuring range that best fits for your application. The calibrated measuring ranges varies from 0...2000 ppm to 0 ... 20% concentrations of CO . Refer to Chapter 2, Product Overview, on page 13 and Chapter 13, Technical Data, on page 61 for more details.
Chapter 2 _____________________________________________ Product Overview Parts Description 0505-221 Figure 1 GM70 Parts The following numbers refer to Figure 1 above: MI70 indicator Recharger connector Connector ports I and II for probes and cables VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Probe GMP221 or GMP222 Probe fastener Handle GMH70 Adjustment button Gas outlet ON/OFF switch 10 = Gas inlet 11 = Measuring chamber 12 = Probe GMP221 or GMP222 13 = Probe connector 14 = Connector to MI70 indicator Probes The GMP220 series probes can be used with the GM70.
- Duration of recharging depends on the charge level of the battery pack being 4 hours typical. The recommended first recharging time is 6 hours. The battery pack is full when the battery symbol stops to roll. Disconnect the recharger. VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Turning On and Setting Language, Date, and Time Connect the probe handle (or the connector from the GM70PUMP) to either of the connector ports of the indicator. Press the button. Select the language by using buttons. Confirm by pressing SELECT date.month.year The default date presentation format is:...
15 minutes to reach the full operating state of the GM70. Install the probe to the measuring position. Avoid exhaling near the probe as this increases the CO concentration. The basic display opens, allow the reading to stabilize. VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Handle the probe carefully. Strong impact or falling can damage the CAUTION probe. POWER ON/OFF If you need to disconnect the probe, first press button to turn the indicator OFF. This ensures that all settings and data are saved properly.
When using the pump aspirated system it is recommended to power the NOTE system by using the recharger connected to a wall socket. The battery indicator of the MI70 display does NOT show the actual NOTE recharge level when the pump is in operation. VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Measuring Other Parameters Simultaneously Connect Vaisala interchangeable dewpoint (DMP) or humidity (HMP) probe to the MI70 indicator's other connector port to have simultaneous humidity measurement. Connect the DMP70/HMP70 probe to the other connector port in the bottom of the indicator.
Buttons and Navigation 0505-224 Figure 4 MI70 Indicator Buttons The following numbers refer to Figure 4 above: To open a menu view: - Press an arrow button - Press this shortcut button Shortcut buttons Arrow buttons Power ON/OFF VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ POWER ON/OFF Press down and hold the button (1) until the indicator turns on/off. SHORTCUT Press the buttons (2) to activate the function above the button. ARROW Press any of the buttons (3) to open the path for the MENUS MENUS ARROW...
MENU not open the shortly. If this happens, start with item 1 again. Move in the menus by using buttons. Select the item with button. Press to return to the previous level. EXIT returns back to normal operation. VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ 0505-226 Figure 6 Menus The following numbers refer to Figure 6 above: Main menu Display menu Functions menu Recording/Viewing menu Environment menu Settings menu _____________________________________________________ M010139EN-G...
Select pressure value, press , press Set the pressure value by using buttons. Press save the value. UNIT Press to change the pressure unit. Default unit is hPa. EXIT Press to return to the basic display. 0505-227 Figure 7 Environment Menu VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Setting Actual Temperature Value and Unit For achieving the most accurate measurements, the actual temperature value should be set to the GM70. The acceptable temperature range is - 20...60ºC. Follow the instructions below: MENU OPEN. Open the , press ►Environment Select...
Press , if you want to check the environment settings, otherwise press Measurement units (ppm and %) express the CO concentration by gas NOTE volume. 1% CO = 10 000 ppm CO VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Rounding When using % units, you can select two or three decimal display by using the Rounding function. The default setting is rounding off (= three decimal display). MENU OPEN. Open the , press ►Display Select , press Rounding Select Press...
Select the language you want, press EXIT Press to return to the basic display. If you accidentally select a wrong language, first go back to the basic display by pressing (right) as many times as required, then go to the VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ language selection menu by pressing: (middle) , (middle). Automatic Power Off As shipped from the factory, the GM70 has a default setting which turns the power off automatically after 15 minutes of inactivity. This is to save the battery.
2002-02-01. To change the date, select and press . Change the date by using arrow buttons. To confirm the date, D.M.Y press. . If you want to change the format, select M/D/Y (date.month.year) or date format (month/day/year), press ON/OFF VAISALA __________________________________________________________...
Device Information Displays The following numbers refer to Figure 11 above: 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) _____________________________________________________ M010139EN-G...
2. For example, if you want to set ON the alarm when concentration exceeds 1000 ppm, set the first level as 0 ppm and the second level as 1000 ppm. When alarming is ON, GM70 starts to beep and display backlight starts to blink. VAISALA __________________________________________________________...
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USER'S GUIDE ______________________________________________________ MENU OPEN. Open the , press ►Settings Select , press ►Alarm Select , press Select the first limit, press (if the alarm function is ON, take it OFF). Set the alarm level by using arrow buttons. Press save the setting.
Accessories on page 65. One scalable voltage signal channel 0...1.0V 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. VAISALA __________________________________________________________...
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USER'S GUIDE ______________________________________________________ Connect the analog output signal cable connector to the indicator base connector. Connect the screw terminal block as follows: Brown wire: common wire (-) Yellow-green wire: signal (+) MENU OPEN. Open the , press ►Functions Select , press ►Analog output Select , press...
, (alternatively open the , select ►Recording/Viewing ►Record data Select , press Interval To change interval, select , press Select the measurement interval with the arrow buttons. The measurement intervals and the maximum recording times are shown in the following table. VAISALA __________________________________________________________...
The data memory can be cleared as follows: MENU OPEN. Open the , press ►Recording/Viewing Select , press Clear data memory CLEAR Select , press . Press to confirm deletion of all recorded data files. EXIT To return to the basic display, press VAISALA __________________________________________________________...
CD. Follow the installation instructions on the CD. Check that the USB cable is not connected. The MI70 Link Setup Wizard will install Vaisala MI70 Link on your computer. Installing the USB instrument driver can take a few minutes.
Chapter 9 ______________________________ Field Checking of Fixed Transmitters CHAPTER 9 FIELD CHECKING OF FIXED TRANSMITTERS This chapter describes the field checking of fixed transmitters. Field Checking of the Vaisala GMW115 and GMD/W20 Series Transmitters (Diffusion Sampling) 0505-235 Figure 15 Location of the MI70 Connector Ports...
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Compare the readings. In case there is a need for an adjustment, send the transmitter to a Vaisala Service Center to be adjusted. The GMD/W20 transmitters can be adjusted also by using a calibration software kit (19222GM).
Turn on the MI70 indicator and the GM70PUMP. Compare the readings. In case there is need for an adjustment, send the transmitter to a Vaisala Service Center to be adjusted or make an adjustment by using a calibration software kit (19222GM).
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 Chapter 10 Calibrating and Adjusting the Probes on page 47.
Factory Calibration and Adjustment It is recommended to send the GM70 probe to Vaisala Service Centers for accurate calibration and adjustment, see section Product Returns on page 60.
USER'S GUIDE ______________________________________________________ Calibration and Adjustment by the User The GM70 can be calibrated and fine control adjustment can be carried out by the user. Note that this adjustment does not correspond to the accurate factory adjustment. The user adjustment is recommended only if the reading error is less than 10% of the measuring range in the low-end and less than 20% of the measuring range in the high-end.
For the adjustment procedure with gases, you need the probe to 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") inner diameter. See section Accessories on page 65.
USER'S GUIDE ______________________________________________________ Insert the probe into the field check adapter until the perforated filter is covered. 0505-237 Figure 17 Field Check Adapter 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 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. VAISALA __________________________________________________________...
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USER'S GUIDE ______________________________________________________ Take out the screw from the GM70 probe handle to expose the adjustment button (see Figure 16 on page 48). Press the button with a small screwdriver. When pressing the button, the indicator turns to adjusting mode. Press to confirm the adjusting.
Go back and press to select the adjustment method. To same as CO2 SELECT Select , press BACK-EXIT Adjustment is complete. Press to return to the basic display. 8. Replace the screw onto the adjusting button. VAISALA __________________________________________________________...
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USER'S GUIDE ______________________________________________________ This page intentionally left blank. _____________________________________________________ M010139EN-G...
This message can be caused by a considerable high drifting error of the probe. Please, contact Vaisala or send the probe to Vaisala Service, see sections Technical Support and Product Returns on page 60. Value too high The reference concentration can be at the highest 110% of the maximum value of the probe's measuring range.
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Switch off power and check that the probe is connected properly, Adapter error see the instructions of Probe error. In case of continuous error, contact Vaisala or send the probe to Vaisala Service, see sections Technical Support and Product Returns on page 60. _____________________________________________________ M010139EN-G...
Tighten the probe fastener. Turn on the GM70. 0505-238 Figure 18 Detaching the Probe The following refers to Figure 18 above: Unscrew the probe fastener (about 5 turns). Pull the probe out firmly. VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Changing the Probe Filter Spare filters for the probe can be ordered from Vaisala, see section Accessories on page 65. Remove the plastic grid by pulling it out. Remove the filter paper. Insert a new filter paper and plastic grid.
Chapter 12 ________________________________________________ Maintenance Changing the Battery Pack New rechargeable battery packs can be ordered from Vaisala. Change the battery pack as follows: Open the back plate of the indicator by opening the screw of the back plate. Remove the old battery pack. Detach the black connector by pulling up carefully from the wires.
USER'S GUIDE ______________________________________________________ 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 - Serial number of the product...
USER'S GUIDE ______________________________________________________ Table 6 Accuracy Specifications Accuracy (including repeatability, non-linearity and calibration uncertainty) at 25°C and 1013 hPa. Probe Accuracy GMP221 ±[1.5% of range + 2% of reading] Accuracy specification applies for concentrations above 2% of full scale GMP222 ±[1.5% of range + 2% of reading] Property Description / Value...
Max number of probes 2 Power supply Rechargeable NIMH battery pack with AC-adapter or 4 x AA size alkalines, type IEC LR6 Analog output 0 ... 1 VDC Output resolution 0.6 mV Accuracy 0.2% full scale Temperature 0.002%/°C full scale dependence VAISALA __________________________________________________________...
USER'S GUIDE ______________________________________________________ Property Description / Value Minimum load resistor 10 kohm to ground PC interface MI70 Link software with USB or serial port cable Data logging capacity 2700 points Logging interval 1 s to 12 h Alarm Audible alarm function Housing classification IP54 Weight 400 g...
Battery, NiMH 4.8 V 26755 Nafion Membrane tubing 212807GM PC Connection tools MI70 Link software interface kit 219687 including a USB instrument cable for MI70 MI70 Link software interface kit MI70LINK including a serial port cable for MI70 VAISALA __________________________________________________________...