TROTEC BC25 Thermohygrometer Instruction Manual

TROTEC BC25 Thermohygrometer Instruction Manual

Notes regarding the instructions

Symbols

Warning of electrical voltage
This symbol indicates dangers to the life and health of persons due to electrical voltage.

Warning
This signal word indicates a hazard with an average risk level which, if not avoided, can result in serious injury or death.

Caution
This signal word indicates a hazard with a low risk level which, if not avoided, can result in minor ormoderate injury.

Note
This signal word indicates important information (e.g. material damage), but does not indicate hazards.

Info
Information marked with this symbol helps you to carry out your tasks quickly and safely.

Follow the manual
Information marked with this symbol indicates that the instructions must be observed.

You can download the current version of the instructions and the EU declaration of conformity via the following link

BC25

Safety

Read this manual carefully before starting or using the device. Always store the manual in the immediate vicinity of the device or its site of use.

Warning
Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference.

• Do not use the device in potentially explosive rooms or areas and do not install it there.
• Do not use the device in aggressive atmosphere.
• Do not immerse the device in water. Do not allow liquids to penetrate into the device.
• The device may only be used in dry surroundings and must not be used in the rain or at a relative humidity exceeding the operating conditions.
• Protect the device from permanent direct sunlight.
• Do not expose the device to strong vibrations.
• Do not remove any safety signs, stickers or labels from the device. Keep all safety signs, stickers and labels in legible condition.
• Do not open the device.
• Never charge batteries that cannot be recharged.
• Different types of batteries and new and used batteries must not be used together.
• Insert the batteries into the battery compartment according to the correct polarity.
• Remove discharged batteries from the device. Batteries contain materials hazardous to the environment. Dispose of the batteries according to the national regulations.
• Remove the batteries from the device if you will not be using the device for a longer period of time.
• Never short-circuit the supply terminal in the battery compartment!
• Do not swallow batteries! If a battery is swallowed, it can cause severe internal burns within 2 hours! These burns can lead to death!
• If you think batteries might have been swallowed or otherwise entered the body, seek medical attention immediately!
• Keep new and used batteries and an open battery compartment away from children.
• Observe the storage and operating conditions (see Technical data).

Intended use
Only use the device for measuring the temperature and humiditylevel in indoor areas or, in the case of small or negligible amounts of sunlight, in outdoor areas within the measuring range specified in the technical data. Observe and comply with the technical data.

To use the device for its intended use, only use accessories and spare parts which have been approved by Trotec.

Foreseeable misuse
Do not use the device in potentially explosive atmospheres, for measurements in liquids or at live parts. Trotec accepts no liability for damages resulting from improper use. In such a case, any warranty claims will be voided. Any unauthorised modifications, alterations or structural changes to the device are forbidden.

Personnel qualifications
People who use this device must:

• have read and understood the instructions, especially the Safety chapter

Residual risks

Warning of electrical voltage
There is a risk of a short-circuit due to liquids penetrating the housing!

Do not immerse the device and the accessories in water. Make sure that no water or other liquids can enter the housing.

Warning of electrical voltage
Work on the electrical components must only be carried out by an authorised specialist company!

Warning
Risk of suffocation!

Do not leave the packaging lying around. Children may use it as a dangerous toy.

Warning
The device is not a toy and does not belong in the hands of children.

Warning
Dangers can occur at the device when it is used by untrained people in an unprofessional or improper way! Observe the personnel qualifications!

Caution
Keep a sufficient distance from heat sources.

Note
To prevent damages to the device, do not expose it to extreme temperatures, extreme humidity or moisture.

Note
Do not use abrasive cleaners or solvents to clean the device.

Information about the device

Device description
The thermohygrometer BC25 can be used to determine the air, dew point and wet- bulb temperature as well as the humidity level of indoor areas.

For assessing the measurements, a Max/Min function (maximum and minimum value), an average value and a Hold function for freezing the currently measured value are also available.

Moreover, the heat index (HI) and apparent temperature (WBGT index) can be determined. A configurable alarm function issues a warning as soon as a certain value is exceeded.

When not in use, an automatic switch-off saves the battery.

Heat index

The heat index, also referred to as humidex, is an indicator developed in the 1970s by the American Steadman. It describes the combined effect of temperature and (high) humidity levels on the human body.

The higher the relative humidity, the worse or slower does the moisture (perspiration) emitted by the human body evaporate as the ambient air can only absorb little additional moisture.

This evaporation, however, is necessary for the human organism to be able to regulate itself in case of strong heat or physical exertion and to keep the core body temperature on a healthy level. If this natural cooling mechanism is slowed down, the body can no longer discharge the generated heat properly, which results in so-called heat stress. Overheating or heat strokes can be among the health consequences.

Even without any physical effort, high temperatures combined with high humidity levels (muggy heat) are therefore generally considered as unpleasant, while high temperatures and low humidity values are more tolerable.

Sweating and the associated cooling effect are thus vitally important for both humans and many mammals, and are indispensable for the physical well-being. wet-bulb globe temperature index (WBGT index)

The wet-bulb globe temperature index is a climate index developed by the US army as early as in the 1950s. It serves to specify the effects of the current climate on the human body.

Unlike the heat index, the WBGT does not only incorporate the air temperature (dry-bulb temperature) and humidity level, but also the wind speed, the wet- bulb and radiation temperature (globe temperature) for assessing the outdoor thermal stress.

The wet-bulb temperature (or theoretical limit of cooling) is the lowest temperature that can be reached through direct evaporative cooling only. It is determined by wrapping a cotton cloth soaked with distilled water around the measuring tip or mercury bulb of a thermometer and then exposing it to the environment. The cooling effect achieved by the evaporated  water can thus be measured and simulated for the perspiringhuman body under these conditions.

The radiation temperature, which is also taken into consideration, is measured inside a thin-walled matt black globe reacting to the infrared heat radiation emitted by the sun.

When calculating the WBGT in indoor areas or outdoor areas exposed to negligible amounts of sunlight, it can be assumed that the radiation temperature has practically no influence. In this case, the globe temperature is assumed to be identical with the ambient temperature.

Therefore, the WBGT index is another indicator for determining the climate effects on the human organism. It is, however, even more informative than the heat index since additional parameters are included in the calculation. Established as an international standard, it is described in ISO 7243 and DIN EN 27243.

Device depiction

Display

Technical data

Temperature
Measuring range| -20 °C to +50 °C or -4 °F to 122 °F
Accuracy| ±0.6 °C (-20 °C to +50 °C)
Measuring range resolution| 0.1 °C or 0.1 °F
Relative humidity
Measuring range| 0.0 % RH to 99.9 % RH
Accuracy| ± 3 % RH (10 % to 90 %)± 5 % RH (0 % to 10 % and 90 %to 99.9 %)
Measuring range resolution| 0.1 % RH
Reaction time| < 15 seconds
Type of protection| IP57
Operating conditions| -20 °C to 50 °C, <80 % RH(non-condensing)
Storage conditions| -10 °C to 50 °C, <80 % RH(non-condensing)
Automatic switch-off| after approx. 15 minutes
Power supply| 1 x CR2032 battery

Scope of delivery

• 1 x Thermohygrometer BC25
• 1 x Quick guide

WBGT index
In the course of sports events, for instance, both the WBGT and the HI index are increasingly used as an indication for potential physical strain and associated hazards.

Colour of warning flag| Risk| Effect| WBGT °C| WBGT °F
---|---|---|---|---
Black| Extreme| Overheating| above 28 °C| above 82 °F
Red| High| 23 °C to28 °C| 73 °F to82 °F
Yellow| Moderate| 18 °C to22 °C| 65 °F to72 °F
Green| Low| below 18 °C| below 65 °F
White| Increasing| Supercooling| below 10 °C| below 50 °F
Source: American College of Sports Medicine

Info
The index is only intended to provide a basis of information. Personal perceptions and heat-related effects may differ

Source: www.eurometeo.com

Transport and storage

Note
If you store or transport the device improperly, the device may be damaged.

Note the information regarding transport and storage of the device.

Transport
For transporting the device, use the bag included in the scope of delivery in order to protect the device from external influences.

Storage
When the device is not being used, observe the following storage condition

• dry and protected from frost and heat
• protected from dust and direct sunlight
• with a cover to protect it from invasive dust if necessary
• the storage temperature complies with the values specified in the Technical data
• Remove the battery from the device.

Operation

Inserting / Changing the batteries

Note
Make sure that the surface of the device is dry and the device is switched off.

1. Open the battery compartment by unscrewing it with a suitable object (e.g. a coin).
2. Remove the battery compartment cover.
3. Insert the battery (1 x CR2032 battery) into the battery compartment with correct polarity.
4. Screw the lid back on the battery compartment.
   

Switch-on and measurements

Note
Note that moving from a cold area to a warm area can lead to condensation forming on the device’s circuit board. This physical and unavoidable effect can falsify the measurement. In this case, the display shows either no measured values or they are incorrect. Wait a few minutes until the device has become adjusted to  the changed conditions before carrying out ameasurement

1. Press the Power button (5).
   • The display will be switched on and the device ready for operation.
   • The TEMP indication (20) and the currently measured temperature value are displayed.
2. Point the device at the area to be measured.
   • Wait for a moment to achieve a stable measured value.

Selecting the measuring mode
After switch-on, the device displays the temperature (TEMP indication, 20).

The following measuring modes are available

Please proceed as follows to set the measuring mode:

1. Repeatedly press the Mode button (3) until the desired measuring mode is displayed.
   

Setting the HOLD function

1. Press the Hold button (4).
   • The current value will be held.
2. Press the Hold button (4) again.
   • The display again indicates the current measured value.

Setting the MAX/MIN/AVG function

Info
These functions can only be used in the TEMP and RH measuring modes.

You can view the highest, lowest or average temperature or relative humidity value from the current measuring interval.

To do so, please proceed as follows:

1. 1. Briefly press the Power button (5).

   • The MAX indication (8) appears on the display.
   • The display now indicates the highest temperature or
     humidity value measured since the device was switched
     on in the selected measuring mode.

2.  Press the Power button (5) again.

   • The MIN indication (9) appears on the display.
   • The display now indicates the lowest temperature or humidity value measured since the device was switched on.

3. Press the Power button (5) again.

   • The AVG indication (10) appears on the display.
   • The display now indicates the average temperature and humidity values measured since the device was switched on.

4. Press the Power button (5) again.

   • The display again indicates the current measured value.

Changing the unit °C / °F
The default setting for the temperature unit is °C.

Please proceed as follows to change the temperature unit:

1. Switch off the device by pressing the Power button (5) and holding it for approx. 5 s.
2. Simultaneously press the power button (5) and the Mode button (3).
   • The currently selected unit °C or °F is displayed.
3. Press the Mode button (3) to change the unit.
4. Afterwards repeatedly press the Power button (5) until the measured temperature value is displayed again.

Configuring the alarm for HI and WBGT inde x
You can define values for the HI and WBGT index above which an acoustic alarm is triggered. In default setting, the alarm function is deactivated.

Please proceed as follows to configure the alarm function:

1. Switch the device off.
2.  Simultaneously press the power button (5) and the Mode button (3).
   • The currently selected unit °C or °F is displayed.
3. Press the Power button (5) again.
   • The HI indication and the A-of message appear on the display.
4. Press the Mode button (3) to activate (A-on) or deactivate (A-of) the alarm function for the HI index.
5. Press the Power button (5) to save the setting.
   • If the alarm function for the HI index is activated, the alarm value can now be determined. If the alarm function is deactivated, please continue with step 8.
6. Press the Mode button (3) to increase the alarm value in steps of 0.1. Press and hold the Mode button (3) to increase the value faster or in larger steps.
7. Press the Power button (5) to save the alarm value for the HI index.
   • The WBGT indication and the A-of message appear on the display.
8. Press the Mode button (3) to activate (A-on) or deactivate (A-of) the alarm function for the WBGT index.
   • If the alarm function for the WBGT index is activated, the alarm value can now be determined.
9. Press the Mode button (3) to increase the alarm value in steps of 0.1. Press and hold the Mode button (3) to increase the value faster or in larger steps.
10. Press the Power button (5) to save the alarm value for the WBGT index.
    • The display again indicates the current measured value.
    • The selected settings are saved.

Automatic switch-off
In default setting, the automatic switch-off function is activated.
The device switches off when not in use for 15 minutes.
To deactivate automatic switch-off, please proceed as follows:

1. Switch off the device by pressing the Power button (5) and holding it for approx. 5 s.
2. Simultaneously press the Power button (5) and the Hold button (4) until the message S-no is displayed.
   • Automatic switch-off is permanently deactivated.

Info
If you switch off the device manually, the automatic switch-off setting is reset, i.e. automatic switch-off is activated again when the device is switched back on.

Switch-off
If automatic switch-off is activated, the device switches off after 15 minutes of non-use.

1. Press the Power button (5) for approx. 5 s.
   • The device is switched off.

Maintenance and repair

Cleaning
Clean the device with a soft, damp and lint-free cloth. Make sure that no moisture enters the housing. Do not use any sprays, solvents, alcohol-based cleaning agents or abrasive cleaners, but only clean water to moisten the cloth.

Repair
Do not modify the device or install any spare parts. For repairs or device testing, contact the manufacturer.

Battery change
A battery change is required when the battery status indication flashes or the device can no longer be switched on (see chapter Inserting the batteries).

Disposal

Always dispose of packing materials in an environmentally friendly manner and in accordance with the applicable local disposal regulations.

The icon with the crossed-out waste bin on waste electrical or electronic equipment is taken from Directive 2012/19/EU. It states that this device must not be disposed of with the household waste at the end of its life. You will find collection points for free return of waste electrical and electronic equipment in your vicinity. The addresses can be obtained from your municipality or local administration. You can also find out about other return options that apply for many EU countries on the website https://hub.trotec.com/?id=45090. Otherwise, please contact an official recycling centre for electronic and electrical equipment authorised for your country.

The separate collection of waste electrical and electronic equipment aims to enable the re-use, recycling and other forms of recovery of waste equipment as well as to prevent negative effects for the environment and human health caused by the disposal of hazardous substances potentially contained in the equipment.

In the European Union, batteries and accumulators must not be treated as domestic waste, but must be disposed of professionally in accordance with Directive 2006/66/EC of the

European Parliament and of the Council of 6 September 2006 on batteries and accumulators. Please dispose of batteries and accumulators according to the relevant legal requirements.

Only for United Kingdom
According to Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113) (as amended) and the Waste Batteries and Accumulators Regulations 2009 (SI 2009/890) (as amended), devices that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

Trotec GmbH
Grebbener Str. 7 D52525 Heinsberg
+49 2452 962-400
+49 2452 962-200
info@trotec.com
www.trotec.com

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