1. Introduction
The DANOPLUS WBGT + HI Heat Stress Meter (Model KB0296) is a portable device designed to measure and monitor heat stress levels in various environments. It provides simultaneous readings for Wet Bulb Globe Temperature (WBGT), Heat Index (HI), Air Temperature, and Relative Humidity (RH). This manual provides essential information for the proper setup, operation, and maintenance of your device.
Image 1: The DANOPLUS WBGT + HI Heat Stress Meter, a 2-in-1 device for measuring heat stress.
Key Features:
- Simultaneous display of WBGT, HI, Air Temperature, and Relative Humidity.
- Switchable IN/OUT mode for indoor and outdoor measurements.
- Programmable buzzer and red LED danger zone warning.
- Adjustable audible alarm volume (75dB / 60dB / mute).
- Adjustable alarm threshold.
- Low battery indicator.
- Direct radiation effect measurement with ABS black globe.
- Wearable design with included arm strap and tripod mountable option.
2. Package Contents
Please check the package contents upon receipt to ensure all items are present and undamaged:
- 1 x DANOPLUS WBGT + HI Heat Stress Meter (Model KB0296)
- 2 x Buckles
- 1 x Arm Strap
- 2 x AAA Batteries
- 1 x English Instruction Manual
Image 2: The DANOPLUS WBGT + HI Heat Stress Meter with its packaging and included accessories.
3. Safety Information
- Read this manual thoroughly before operating the device.
- Do not expose the device to extreme temperatures, direct sunlight for prolonged periods, or high humidity.
- Avoid dropping the device or subjecting it to strong impacts.
- Do not attempt to disassemble or modify the device. This will void the warranty.
- Keep the device out of reach of children.
- Dispose of used batteries according to local regulations.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the back of the device.
- Slide or unclip the cover to open the compartment.
- Insert the two AAA batteries, ensuring correct polarity (+/-).
- Replace the battery compartment cover securely.
4.2 Initial Power On
Press and hold the POWER/SET button to turn on the device. The display will illuminate and show the current readings.
4.3 Mounting Options
The device offers flexible mounting for various applications:
- Wearable Strap: Attach the arm strap using the provided buckles to wear the device on your arm for personal monitoring.
- Tripod Mounting: The device has a standard tripod screw hole for mounting on a tripod (tripod not included).
- Wall Mount: Use the integrated slots on the back of the device to hang it on a wall or other vertical surface.
Image 3: The DANOPLUS WBGT + HI Heat Stress Meter demonstrating its three usage modes: wearable, tripod-mounted, and wall-mounted.
5. Operation
5.1 Understanding the Display
The digital display shows the following measurements:
- WBGT: Wet Bulb Globe Temperature.
- HI: Heat Index.
- TEMP: Air Temperature.
- HUMIDITY: Relative Humidity.
The display also indicates the current mode (IN/OUT) and alarm status.
5.2 Switching IN/OUT Mode
Press the MODE button (usually indicated by an arrow or 'IN/OUT' symbol) to toggle between indoor (IN) and outdoor (OUT) measurement modes. The appropriate icon will appear on the display.
5.3 Setting Alarm Thresholds
- Press and hold the SET button until the alarm threshold value starts flashing.
- Use the UP and DOWN arrow buttons to adjust the desired WBGT or HI alarm threshold.
- Press SET again to confirm and move to the next setting, or wait for the display to return to normal operation.
5.4 Adjusting Alarm Volume
The device features an adjustable audible alarm. Press the VOLUME button (if available, or cycle through settings with SET) to switch between 75dB, 60dB, or mute. A visual indicator on the display will confirm the selected volume level.
Image 4: The device offers adjustable alarm volume settings for 75dB, 60dB, or mute.
5.5 Interpreting Danger Zone Indicators
The meter provides visual and audible warnings when heat stress levels exceed predefined thresholds. A red LED will flash, and the buzzer will sound when the measured value is over the alarm threshold. The display also shows specific danger level indicators:
- Caution: WBGT: 26.7 ~ 29.4 °C (80 ~ 84.9 °F) / HI: 27 ~ 31.9 °C (80.6 ~ 89.4 °F)
- Extreme Caution: WBGT: 29.4 ~ 31 °C (85 ~ 87.9 °F) / HI: 32 ~ 40.9 °C (89 ~ 105.6 °F)
- Danger: WBGT: 31 ~ 32.2 °C (88 ~ 89.9 °F) / HI: 41 ~ 53.9 °C (105.7 ~ 129 °F)
- Extreme Danger: WBGT: > 32.2 °C (> 90 °F) / HI: ≥ 54 °C (> 129 °F)
Image 5: Examples of the danger zone indicators on the display, showing WBGT and Heat Index thresholds.
Image 6: The red LED alarm light indicates when measured heat stress values exceed the set threshold.
6. Maintenance
6.1 Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the device openings.
6.2 Battery Replacement
When the low battery indicator appears on the display, replace the AAA batteries as described in Section 4.1. Remove batteries if the device will not be used for an extended period.
6.3 Storage
Store the device in a cool, dry place away from direct sunlight and extreme temperatures. Keep it in its original packaging or a protective case when not in use.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Dead or incorrectly installed batteries. | Check battery polarity or replace with new AAA batteries. |
| Inaccurate readings. | Sensor obstruction or device not stabilized. | Ensure sensors are clean and unobstructed. Allow 15-25 minutes for stabilization in a new environment. |
| Alarm not sounding. | Alarm volume muted or threshold not met. | Check alarm volume settings. Verify alarm threshold is set correctly and current readings exceed it. |
| Display is dim or flickering. | Low battery power. | Replace batteries. |
8. Specifications
| Parameter | Value |
|---|---|
| Model Number | KB0296 |
| Air Temperature Range | 0 ~ 50 °C (32 ~ 122 °F) |
| WBGT Temperature Range | 0 ~ 50 °C (32 ~ 122 °F) |
| HI Temperature Range | 0 ~ 60 °C (32 ~ 140 °F) |
| Humidity Range | 0.1 ~ 99.9% RH |
| Air Temperature Accuracy | ± 0.6 °C |
| Humidity Accuracy | 10 ~ 90% RH @ 25 °C: typical 5%, others 7% |
| Resolution | 0.1 °C / °F, 0.1% RH |
| Stabilization Time | 15 ~ 25 minutes (typical) |
| Battery Life | Approx. 300 hours |
| Power Source | 2 x AAA Batteries |
| Dimensions (H x W x L) | 70 x 60 x 22 mm |
| Weight | Approx. 90g |
| Display Type | Digital LCD |
| Response Time | 20 Seconds |
9. Warranty and Support
DANOPLUS products are manufactured to high-quality standards. For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official DANOPLUS website. Please retain your proof of purchase for any warranty claims.