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M212070EN-B Quick Guide â Vaisala HUMICAP Handheld Humidity and Temperature Meter HM70...
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English versions are This product contains software developed applicable, not the translations. by Vaisala or third parties. Use of the The contents of this document are subject software is governed by license terms and to change without prior notice.
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Table of contents by language English.............................5 日本語....................... 23...
Table of contents Introduction to HM70..................6 Overview of probes...................7 Effect of temperature differences in humidity measurements....8 MI70 indicator....................9 MI70 indicator parts..................9 MI70 status icons.....................10 Installing and recharging MI70 batteries............10 Taking measurements.................. 12 MI70 first start-up settings................12 Basic measuring steps with HM70..............12 3.2.1 Setting actual pressure value and unit..........
Vaisala HUMICAPâ Handheld Humidity and Temperature Meter HM70 measures relative humidity and temperature accurately in measurement range −70 … +180 °C (−94 … +356 °F), depending on the probe model. HM70 consists of 2 main units: Vaisala Handheld Measurement Indicator MI70 and the HMP75/HMP76/HMP77 probe.
Chapter – Introduction to HM70 • HMD62 and TMD62 User Guide (M212016EN) • HMD65 User Guide (M212243EN) • GMW90 Series User Guide (M211659EN) 1.1 Overview of probes Figure 1 HMP75, HMP76, and HMP77 probes (left to right) Probe filter Calibration mode activation button under the screw in the probe handle Table 2 HMP75, HMP76, and HMP77 probe features Probe model Overview...
M212070EN-B 1.2 Effect of temperature differences in humidity measurements In humidity measurement and especially in calibration, it is essential that the temperature of the probe and the measurement environment are the same. Even a small temperature difference between the environment and the probe causes an error. A temperature difference of a few degrees can also cause water to condense on the sensor surface.
Vaisala MI70 handheld indicator is a portable tool for viewing the measurements, recording the data, and configuring the settings of connected Vaisala instruments. MI70 indicators can be used with a wide range of Vaisala instruments, and are also delivered as part of the probe and indicator product packages DM70, GM70, HM70, and MM70.
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).
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Chapter – MI70 indicator The status of the MI70 battery is shown by the battery icon in the upper left corner of the display. Possible statuses are listed in Table 3 (page 10). To recharge the rechargeable battery: 1. Plug in the charger connector to the MI70 indicator. The socket is located at the top of the indicator, covered by a rubber seal.
M212070EN-B 3 Taking measurements 3.1 MI70 first start-up settings When taking MI70 into use for the first time, configure the basic settings (language, date, and time) as instructed below. 1. Press the Power On/Off button in MI70 to switch the indicator on. 2.
Chapter – Taking measurements 4. Install the probe in the measurement environment. 5. The basic display opens. Let the measurement reading stabilize. 6. For options on recording measurement data or examining the data as a graph, see Displays and menus (page 15).
M212070EN-B 3.3 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.
Chapter – Displays and menus 4 Displays and menus 4.1 Basic display In the MI70 user interface, measurement parameters are referred to as quantities. Figure 4 HM70 basic display Battery indicator. Shows the current status (charge) of the battery. Pressure setting. Measured parameter (up to 3 items on display simultaneously). You can change the shown items in Main menu >...
M212070EN-B To open the graphical display, select Graphic in the basic display or select Main menu > Display > Graphic history > Show. To get the statistical info on the graph area (minimum, maximum, and average values), press Info. 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.
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Chapter – Displays and menus Figure 6 Functions menu and Recording/Viewing menu Figure 7 Environment menu and Settings menu...
If HM70 displays an error message, check first that the sensor is connected properly. If there is condensed water in the probe, let the probe dry before resuming measurement. In case of constant error, contact Vaisala (see Technical support (page 20)).
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Do not push the connector with conducting material. 4. Place the battery pack in the compartment. 5. Close the back plate and tighten the screw. 6. Recharge the indicator before use. For the full HM70 User Guide (M210297EN) with product specifications, see www.vaisala.com/hm70.
M212070EN-B 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. • Vaisala Online Store at store.vaisala.com...
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