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108
The Vaisala CARBOCAP
®
Hand-Held
Carbon Dioxide Meter GM70 is a
user-friendly meter for demanding
spot measurements in laboratories,
greenhouses and mushroom farms.
The meter can also be used in HVAC
and industrial applications, and as a
tool for checking xed CO
2
instruments.
The GM70 has a short warm-up
time and is ready for use almost
immediately. It has a menu-based
interface, a graphical LCD display and
data logging capability. The optional
MI70 Link Windows
®
software in
combination with a USB connection
cable provides an easy way to handle
data in a PC environment.
Vaisala CARBOCAP
®
Technology
The GM70 incorporates the advanced
Vaisala CARBOCAP
®
sensor that
has unique reference measurement
capabilities. The measurement
accuracy is not affected by dust,
water vapor or most chemicals. The
GM70 has a two-year recommended
calibration interval.
Two Sampling Methods
The handle is for hand-held
diffusion sampling. The GM70
pump enables pump-aspirated
sampling from locations dif cult
to access otherwise. It is also ideal
for comparisons with xed CO
2
transmitters.
Interchangeable Probes
The GM70 uses the same probes as
Vaisala CARBOCAP
®
Carbon Dioxide
Transmitter Series GMT220 and
Modules Series GMM220. By plugging
different probes into the handle or
pump, the user can easily change the
measurement range of the GM70.
The meter can also be used as a
calibration check instrument for
Vaisala’s GM20 and series, GMT/
M220 xed CO
2
instruments. GMP220
probes can even be adjusted by using
the GM70 meter.
The GM70 has two probe inputs.
Vaisala’s relative humidity and
dewpoint probes can also be
used simultaneously with CO
2
measurement.
GM70 Hand-Held Carbon Dioxide Meter
for Spot-Checking Applications
The Vaisala CARBOCAP
®
Hand-Held Carbon Dioxide Meter GM70 is the demanding
professional’s choice for hand-held carbon dioxide measurement. The meter consists
of the indicator (center) and probe, used either with the handle (left) or pump (right).
Features/Benefi ts
▪
Proven Vaisala CARBOCAP®
reliability
▪
Two optional sampling
methods: di usion or pump
aspiration
▪
User-friendly meter with
multilingual user interface
▪
Numerical and graphical
display of measurements
▪
Data can be logged and
transferred to PC via MI70 Link
software
▪
Wide selection
of measurement ranges
▪
Easy recalibration using the
interchangeable probes
▪
Suitable for fi eld checking of
fi xed CO
2
instruments
▪
Short warm-up time
▪
Compact and versatile
4-Carbon-Dioxide-Pages-100-119-Vaisala-Catalog-2011.indd 108 24.10.2011 9.21
109
Technical Data
MI70 Indicator General
Menu languages English, Chinese, French, Spanish,
German, Japanese, Russian,
Swedish, Finnish
Display LCD with backlight, graphic trend
display of any parameter,
character height up to 16 mm
Max. no. of probes 2
Power supply Rechargeable NiMH battery pack
with AC-adapter
Analog output 0 ... 1 VDC
Output resolution 0.6 mV
PC interface MI70 Link software with USB or
serial port cable
Data logging capacity 2700 points
Alarm Audible alarm function
Operating temperature range -10 ... +40 °C (+14 ... +104 °F)
Operating humidity range non-condensing
Housing material ABS/PC blend
Housing classifi cation IP54
Weight 400 g
CO
2
Volume Concentration Measurement
Measurement ranges
High concentrations 0 ... 2 %
short probe (GMP221) 0 ... 3 %
0 ... 5 %, 0 ... 10 %, 0 ... 20 %
Low concentrations 0 ... 2000 ppm
long probe (GMP222) 0 ... 3000 ppm, 0 ... 5000 ppm,
0 ... 7000 ppm, 0 ... 10,000 ppm
Accuracy (including repeatability, non-linearity and calibration
uncertainty) at 25 °C and 1013 hPa
GMP221 ±(1.5% of range + 2% of reading)
(applies for concentrations above 2% of full scale)
GMP222 ±(1.5% of range + 2% of reading)
Temperature dependence, typical -0.3 % of reading / °C
Pressure dependence, typical +0.15% of reading/hPa
Long-term stability <±5 %FS/2 years
Response time (63 %)
GMP221 20 seconds
GMP222 30 seconds
Warm-up time 30 seconds, 15 minute full
specifi cations
Measurement Environment
Temperature -20 ... +60 °C (-4 ... +140 °F)
Relative humidity 0 ... 100 %RH non-condensing
Operation pressure 700 ... 1300 hPa
Flow range (diffusion sampling) 0 ... 10 m/s
Probe, Handle & Pump General
Sensor Vaisala CARBOCAP
®
Housing material
GMP221/222 probe PC plastic
GMH70 handle ABS/PC blend
GM70 Pump aluminium casing
Storage temperature -30 ... +70 °C (-22 ... +158 °F)
Storage humidity 0 ... 100 %RH non-condensing
Weight
GMH70 with GMP221/222 probe 230 g
GM70 Pump with GMP221/222
probe 700 g
Ref. B210824EN-B ©Vaisala 2009
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifi cations — technical included — are subject
to change without notice.
Battery Operation Time
Continuous use
with handle better than 8h at +20 °C (+68 °F)
with pump better than 5h at +20 °C (+68 °F) without load
Data logging use up to a month, depending on logging interval
Electromagnetic Compatibility
EN 61326-1, Portable Equipment.
Accessories
Connection cable for fi xed CO
2
instruments
GMT220, GMM220, GMD20 and
GMW20 GMA70
MI70 Link software with USB cable 219687
MI70 Link software with serial port
cable
MI70LINK
Analog output cable for 0 ... 1 VDC 27168ZZ
Calibration adapter 26150GM
Carrying case MI70CASE
Battery, NiMH 4.8V 26755
Spare probe GMP221, GMP222
(use the order form to defi ne measurement range etc.)
Nafi on Membrane Tubing 212807GM
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
4-Carbon-Dioxide-Pages-100-119-Vaisala-Catalog-2011.indd 109 24.10.2011 9.21
- HUMIDITY / DEW POINT / 1
- PRESSURE / WEATHER 1
- ACC URATE 2
- Humidity 4
- Dew Point 4
- Mounting Options 9
- Graphical Display of 10
- History and 10
- Measurement Trends 10
- Outputs and Power Supply 10
- Options for Every Need 10
- Flexible Installation 11
- For Moderate Humidities 11
- Vaisala HUMICAP® 12
- Performance 12
- Measurement Trends and 12
- Real Time History 12
- 41 (1.6) 13
- 51 (2.0) 13
- 192 (7.56) 13
- 253 (9.96) 13
- 37.5 (1.48) 14
- 79.5 (3.13) 14
- 99.5 (3.92) 14
- Temperature Transmitters 16
- HMP361 for wall mounting 17
- HMP363 for confined spaces 17
- HMP364 for high pressure 17
- HMP365 for high temperature 18
- HMP367 for high humidities 18
- HMP368 for pressurized 18
- Transmitter 22
- Interchangeable Probe 24
- Fast, On-Site Calibration 26
- Measures both Humidity 26
- Resistant to Chemicals 28
- Vaisala INTERCAP 30
- Humidity and Temperature 30
- Transmitter Series HMW80 30
- HVACApplications 32
- Demanding Applications 34
- Unique Warmed Probe 34
- Vaisala HUMICAP® Sensor 34
- Chambers 36
- Probe HMP60 38
- Vaisala HUMICAP 40
- Probe HMP110 40
- Three Probes 42
- MI70 Link 42
- Reliable and Cost-ecient 47
- HVAC Products 47
- Fast and Easy-to-Use 48
- HMK15 Humidity Calibrator 50
- DTR500 Solar Radiation 54
- Versatile Outputs and 61
- (Wireless) Data Collection 61
- Easy Installation 61
- Probe Specifications 62
- Ensure dry 65
- Measure Humidity Directly 66
- DMT345, Accurate in Hot 66
- OEM Applications 70
- Low Maintenance 72
- Dewpoint temperature (°C) 75
- DMT132 Dewpoint Transmitter 76
- DEW POINT 77
- CALCULATED VARIABLES 77
- Indoor Applications 78
- 110 (4 .33) 79
- 85 (3.35) 79
- 33 (1.30) 79
- DSS70A Portable 82
- Sampling System 82
- Sampling Cells for 82
- Pressurized Processes 82
- Online Reliability 86
- Savings Across the Board 86
- Risk-Free, Greener 86
- Solution 86
- The Fruit of Experience 86
- Multiparameter Transmitter 88
- When Moisture is a Problem 89
- Knowledge is Power 89
- Literally 89
- Transmitter Series for Oil 90
- Moisture in Oil 90
- The Vaisala HUMICAP 91
- Hand-Held 91
- R1/2" ISO7/1 92
- Prevent it 95
- Transmitter for Oil 96
- Features/Benefits 100
- Technical Data 101
- 0 ... 2 % 102
- Interchangeable Probes 104
- Demanding OEM Applications 106
- GMM111 Carbon Dioxide Module 108
- Vaisala CARBOCAP 110
- Technology 110
- Two Sampling Methods 110
- Features/Benefi ts 112
- Demand-controlled Ventilation 114
- GMM112 Carbon Dioxide Module 118
- GMM20W Carbon Dioxide Module 120
- Pressure 122
- PTU300 Models 123
- Mechanics 126
- Accessories 126
- Dimensions 126
- IN CONTROLLED ENVIRONMENTS 127
- Take the Lab to the Field 130
- For more information, visit 131
- Standard PTB330TS 132
- PTB210 Digital Barometer 134
- Calculate 137
- Vaisala BAROCAP® 138
- Accuracy and Stability 138
- Applications 138
- Ideal for outdoor 140
- Carefree maintenance 140
- Operating Environment 142
- Available Options 142
- Figure 1 143
- Figure 2 with Process 143
- Valve Actuator and 143
- Test Jacks 143
- Measuring Acoustic 146
- Precipitation 146
- Wind Measurement 150
- Vaisala Service Offering 152
- Accredited Body 153
- Accredited Parameters 153
- Vaisala Filters 154
- Vaisala Filters continued 155
- Vaisala Contact Information 158
- ASIA AND PACIFIC 159
- NORTH AMERICA 159
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