Wohler HF 300 Moisture Meter User Manual

: June 4, 2024
: WOHLER

Wohler HF 300 Moisture Meter General Information

Operation Manual In-formation

This operation manual allows you to work safely with the Wöhler HF 300 Moisture Meter. Please keep this manual for your information.
The Wöhler HF 300 Moisture Meter should be employed by professionals for its intended use only.
Liability is void for any damages caused by not following this manual.

Notes

WARNING!

Not following this warning can cause injury or death.
ATTENTION!

Not following this note can cause permanent damage to the device.

NOTE!
Useful information

Intended Use

The meter measures the relative humidity of wood.
Do not use the meter for any other use than set out in this manual.

Scope of supply

Device	Scope of supply
Wöhler HF 300	Moisture Meter with

protective cap

Protective bag
9 V battery
Replacement pins

Information on disposal

Electronic equipment does not belong to domestic waste, but must be disposed of in accordance with the applicable statutory provisions.
You may hand in any defective batteries taken out of the unit to our company as well as to recycling places of public disposal systems or to selling points of new batteries or storage batteries.

Address

Wöhler Technik GmbH Wöhler-Platz 1 33181 Bad Wünnenberg
Tel.: +49 2953 73-100
Fax: +49 2953 73-250
E-Mail: info@woehler.com

Technical Data

Description	Data
Range	5% to 40 % of wood

moisture

Resolution| 1% of wood moisture
Precision in considera-

tion of VDI 4206 page 4

| ± 40% of the reference

wood value

tery)

Design and function

Explanation

Protective cap
Pins
HOLD-key
ON/OFF-key
LCD Screen
Battery compartment

Safety information

Avoid possible damage to property or injury to people

WARNING!
The danger of injury because of sharp pins Take care when handling with the pins! Always put the protective cap on the pins before storing.
Avoid possible damage to the meter

ATTENTION!

Attention must be paid to preventing moisture and dust during application. Always keep it dry and clean to ensure measurement accuracy.
ATTENTION!

The place where the meter is kept must be clean, the ambient temperature 0 – 40 °C.

Measuring Method

Open

Pull off the protective cap with two fingers.

Switching on

Press the ON/OFF key to switch on the meter.

Measuring Method

Insert the pins of the Wöhler HF 300 into the wood approx. 5 mm.
The meter will display the relative humidity of the wood on the LCD.

Hold the current value

Press the HOLD-key to hold the current value.An H-Icon on the LCD shows that a frozen value is shown instead of the current value.
Press the HOLD-key again to bring up the measuring menu again.

Evaluate the measurement result

The user can estimate the combustibility of the measured wood based on the measurement result according to the three traffic-light colors under the LCD.
green: standard flammable
yellow: hardly flammable
red: combustion not recommended, because too humid

Finishing the measurement

Press the ON/OFF key to switch on the meter.
Put the protective cap on the meter.

Changing the batteries

When battery voltage gets low, a low battery indicator will appear on the LCD.
In this case change the batteries as follows:

Open the battery compartment on the back of the unit.
Replace the battery by a new 9V battery

Replacing the pins

Broken or damaged pins can be exchanged by the pin-kit.

Loosen the damaged pins with an appropriate tool (gripper, screw wrench or ring wrench).
Replace the damaged needles by the needle kit and fix the new needles with the tool.

Warranty and Service

Each Wöhler HF 300 Moisture Meter will be tested in all functions and will leave our factory only after extensive quality control testing.
If used properly, the warranty period for the Wöh-ler HF 300 will be twelve months from the date of sale. Electrodes and Batteries are not covered by this warranty.
This warranty does not cover the freight and packing costs when the device is sent to the factory for repair.
Service by non-authorized personnel or making modifications to the analyzer voids any warranty.
Wöhler has built our reputation on excellence in customer service. Therefore, of course, we are readily available to assist you after the warranty period ends.

Send us the device and we will repair it and return it to you with our package service.
Immediate help is provided by our technical staff over the telephone.

Accessories

6 pairs of replacement pins

Declaration of conformity

The product Wöhler HF 300 complies with the key safety requirements set down in the guidelines of the Council for the Harmonization of the Legal Requirements of the Mem-ber States in relation to electromagnetic compatibility (2014/30/EU).
The following standards were availed of to evaluate the product in respect of the electromagnetic compatibility:
EN 61326-1:2013, EN 61326-2-2:2013
EN61000-4-2:2009, EN61000-4-3:2006 + A1:2008 + A2:2010
Bad Wünnenberg, 04.08.2022 Dr. Stephan Ester, Geschäftsführer/Managing Director