Vaisala HM40 User Manual

User’s Guide

www.vaisala.com

Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM40

M211088EN-B

First Startup.......................................................................................... 3

Initial Settings.............................................................................3

Product Overview ..............................................................................4

The HM40 Meter - Front .................................................................. 5

The HM40 Meter – Back................................................................... 6

HM40 With Handle..............................................................................7

Batteries................................................................................................. 9

Charging................................................................................................10

Parameters Explained....................................................................... 11

Measurement Views..........................................................................12

Screen Layout and Controls ............................................... 12

Indicators ................................................................................... 13

Numeric View........................................................................... 14

Statistics View.......................................................................... 15

Graph View................................................................................ 16

Hold and Tag............................................................................ 18

Main Menu ...........................................................................................20

Tagged Points.......................................................................... 21

Graph Duration ....................................................................... 22

Settings...................................................................................... 22

Calibration ................................................................................ 23

Help............................................................................................. 23

Settings Submenu ............................................................................24

Language .................................................................................. 24

Units............................................................................................ 25

Time & Date ............................................................................. 25

Pressure..................................................................................... 27

Backlight.................................................................................... 27

Battery .......................................................................................28

Navigation................................................................................. 28

Rounding...................................................................................28

Factory Settings ..................................................................... 29

How to Measure................................................................................ 30

Maintenance........................................................................................32

Cleaning.....................................................................................32

Changing the Filter................................................................ 33

Changing the Probe .............................................................. 34

Calibration ...........................................................................................35

Calibrating the HM40 Using HMK15 ................................36

Accessories and Parts.................................................................... 40

Filters...........................................................................................41

Chargers and Batteries .........................................................41

Belt Clips and Battery Covers ............................................41

Technical Data ...................................................................................42

Performance.............................................................................42

Mechanical................................................................................43

General.......................................................................................43

Dimensions with Standard Probe.....................................44

Dimensions with Handle ......................................................45

First Startup

1. Check that the HMP113 probe is securely attached and remove the yellow transport protection cap from the probe.

2. Open the battery cover and insert two AA-size batteries.

3. Close the battery cover and turn on the meter by pressing the Power button. If the meter does not turn on, check the battery orientation. Replace the batteries with fresh/recharged ones if needed.

Initial Settings

When you power on the HM40 for the first time (or after a factory reset of the settings), you must first select the operation language. The meter will then ask if you want to change the following settings:

- Units

- Date

- Time

If you answer Yes to the question (recommended), the meter will show the settings screens before showing the measurement view. Use the arrow and function buttons to select. For more information, see section Settings S

ubmenu on page 24.

HM40 will retain the date and time even during battery changes. The clock will have to be set again only if the meter is without battery power for several hours.

Product Overview

The Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM40 is a hand-held meter for various portable measurement applications.

Main features:

- Compact and robust housing.

- Measures a wide range of parameters: RH, Td, Tw, a, x,

h, T. See section Parameters Explained on page 11.

- Large grap

- Graphs for selected parameter and temperature.

- Interchangeable HMP113 probe.

- Available with standard probe or remote probe handle.

- Can be user calibrated (using the HMK15 humidity

calibrator, for example).

- Powered by standard AA size batteries (2×).

- Operation temperature range -10°C ... +60°C.

- Belt clip.

Optional:

- Membrane filter for HMP113 probe for increased protection against contaminants.

- USB-powered portable charger for AA-size NiMH rechargeables.

hical display.

For more information and order codes of the accessories, see section Accessories and Parts on page 40.

The HM40 Meter - Front

Filter and sensor

HMP113 probe

Display

Probe holder

Left function

Right function

Down

Power

The HM40 Meter – Back

elt clip

attery

over

Batteries 2xAA

HM40 With Handle

HMP113 probe

Orientation mark

Cable connector

Probe holder

HM40 handle

You can connect the HM40 handle to the belt clip for single handed use. Simply push the belt clip into the slot in the handle.

When the handle is connected to the meter in this way, you can lay down the meter on top of the handle.

Batteries

The HM40 is powered by two AA-size batteries. You can use the following battery types:

- Alkaline (IEC-LR6)

- Lithium (IEC-FR6)

- NiMH (IEC-HR6)

Do not mix batteries of different types. Both batteries must be of the same type.

Observe instructions storage and operation instructions of the battery manufacturer.

Alkaline batteries are the standard choice in nonrechargeable batteries. They are a good match for the power requirements of the HM40.

Lithium batteries are a good choice if you need the longest battery life or best capacity in low temperatures. Lithium batteries are not rechargeable. Do not confuse them with lithium-ion batteries, which cannot be used in the HM40.

NiMH batteries are rechargeable, and available from Vaisala as an option. For order codes, see section Accessories and Parts on page 40. Instructions for using the optional U Charging on page 10.

SB charger are provided in section

Charging

The optional USB charger provides a convenient way to charge two NiMH batteries from any powered USB port (for example, from a laptop computer).

1. Place the rechargeable batteries in the charger and plug it into a USB port. The blue LED on top of the charger starts to blink.

2. When the LED stops blinking and stays on, the batteries are charged. The charging time is several hours for two fully discharged NiMH batteries.

If you are not using a Vaisala-supplied charger and rechargeable batteries, read and follow the manufacturer’s own charging instructions.

Do not attempt to charge non-rechargeable (alkaline or lithium) batteries! Doing so leads to a risk of battery leakage, equipment damage, and risk of explosion and/or fire.

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