Dpstar is a leading supplier of environmental measurement sensors for temperature, relative humidity, pressure, dew point, CO2, and other environmental condition monitoring for industrial process application and research. Since the ’90s, we earned a reputation as a trusted partner to our clients through our commitment and dedication. We are an authorized distributor and supplier of measuring sensors solutions from renowned manufacturers Vaisala. Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala provides observations for a better world. Vaisala is a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.
Handheld Measurement Indicator MI70 is a user-friendly indicator. When combined with a measurement probe it is ideal for field checking and calibration of fixed instruments. MI70 has probes for measuring humidity and temperature, dewpoint, moisture in oil, and CO2. In addition, MI70 can be used as a display when connected to selected Vaisala transmitters.
Multi-Probe Operation
Users can select and display up to three measurement parameters at the same time. The graphic display shows the stabilization of measurement and process trends. The MI70 indicator has two cable ports by which a combination of any two probes (or transmitters) can be connected to it simultaneously. For example, a humidity and temperature probe could be connected to one port and a CO2 probe to the other. The indicator can display the measurements made by both probes, so humidity, temperature, and CO2 data could be displayed simultaneously.
Intuitive User Interface
MI70 features a multilingual, menu-based user interface and a clear graphical LCD display. All in all three measurement parameters can be displayed and simultaneously logged in the memory. The display shows measurement trends graphically and numerically. Users can select the measurement parameters and units. MI70’s intuitive user interface operates with menus and keypads to change settings, logging, and display preferences.
Multiple Language Options
There are nine language options in MI70: Chinese, English, Finnish, French, German, Japanese, Russian, Spanish, and Swedish.
Optional Connection to PC
The optional MI70 Link Windowsâ software and the USB connection cable form a practical tool for transferring logged data as well as real-time measurement data from the MI70 to a PC
MI70 Measurement Indicator | ||
Operating Environment | Operating temperature | -10 … +40 °C (+14 … +104 °F) |
Operating humidity | 0 … 100 % RH, non-condensing | |
Storage temperature | -40 … +70 °C (-40 … +158 °F) | |
Inputs and Outputs | Max. no of probes | 2 |
Power supply | Rechargeable NiMH battery pack with AC adapter or 4xAA size alkalines, type IEC LR6 | |
PC interface | MI70 Link software with USB or serial port cable |
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Analog Output | Scale | 0…1 VDC |
Output resolution | 0.6 mV | |
Accuracy | 0.2 % full scale | |
Temperature dependence | 0.002 %/˚C full scale | |
Minimum load resistor | 10 kΩ to ground | |
Mechanical Specifications | Housing classification | IP54 |
Housing materials | ABS/PC blend | |
Weight | 400 g | |
Compatibility | EMC compliance | EN61326-1, Portable Equipment |
Other | Menu languages | English, Chinese, Spanish, Russian, French, Japanese, German, Swedish, Finnish |
Display | • LCD with backlight • Graphic trend display of any parameter • Character height up to 16 mm |
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Alarm | Audible alarm function | |
Data logging capacity | 2700 real time data points | |
Logging interval | 1 s to 12 h | |
Logging duration | 1 min … memory full | |
Resolution | 0.01 %RH, 0.01 °C/°F, 0.01 hPa, 0.01 aw, 10 ppm / 0.01 %CO2 |
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Battery Operation Time | ||
Typical charging time | 4 hours | |
Operation Times | Continuous use (one probe of HM70, DM70 and MM70 series) | 48 h typical at +20 ˚C (68 °F) |
Continuous use (GM70 handle) | better than 8 h at +20 °C (+68 °F) | |
Continuous use (GM70 pump) | better than 5 h at +20 °C (+68 °F) | |
Data logging use | up to a month, depending on logging interval |
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Measurement Probes for the MI70 | ||
HM70 Series Humidity and Temperature Probes | HMP75(B) | General purpose probe |
HMP76(B) | Long, stainless steel probe | |
HMP77(B) | Small probe, with 5 m cable | |
DM70 Series Dewpoint Probes | DMP74A, DMP74B | Pressure tight probes for dry air measurements |
DMP74C | Probe for SF6 gas measurements | |
Probe for SF6 gas measurements | MMP78 | Pressure tight, stainless steel probe |
GM70 Carbon Dioxide Probes | GMH70 | Handle for probe for diffusion sampling |
GM70PUMP | Sampling pump for GM70 | |
Spare Parts & Accessories | ||
Carrying Cases | A weatherproof carrying case for HM70, DM70 and GM70 short probes | MI70CASE3 |
A weatherproof carrying case for HM70 and MM70 long probes | MI70CASE4 | |
A soft carrying case for HM70, DM70 and GM70 short probes | MI70SOFTCASE | |
Transmitter Connection Cables | MMT/HMT330, HMT120/130, DMT340, PTB330, PTU300 Series | 211339 |
HMD60/70 Series | HMA6070 | |
DMT242 | 27160ZZ | |
DMT143, DMT143L, DMT152, MMT162 HMW90 Series, HMDW110 Series and GMW90 Series |
219980SP | |
MMT/HMT310 Series, GMP343 | DRW216050SP | |
GMT220, GMD20 | GMA70 | |
HMP155 | 221801 | |
Software | MI70 Link software with USB cable | 219687 |
MI70 Link software with serial port cable | MI70LINK | |
Other | Analog output cable | 27168ZZ |
10 m (32.81 ft) extension cable for probe | 213107SP | |
Battery, NiMH 4.8 V | 26755 |