The PCE-WB 20SD serves as a data-logging heat stress meter designed for the measurement of various environmental parameters. These include indoor/outdoor wet bulb globe temperature (WBGT), black globe temperature (TG), wet bulb temperature (WB), dew point temperature, air temperature (TA), and relative humidity. This versatile device, equipped for data recording, proves to be an excellent tool for assessing heat stress risks across diverse work environments. Professionals in indoor air quality (IAQ) inspections also utilize it to evaluate the performance of heating, ventilation, and air conditioning (HVAC) systems.
With a generously sized and user-friendly LCD screen featuring a green backlight, this heat index meter provides ease of reading. It includes a programmable WBGT alarm setting with audible and visual alerts, ensuring that workers are promptly notified of unsafe conditions on-site or in the workplace. The PCE-WB 20SD offers both manual (push-button) and automatic (adjustable 1 to 3600 seconds) sampling options, and it is compatible with SD memory cards ranging from 1 to 16 GB.
Features:
- For real-time or long-term temperature and humidity measurement applications
- Temperature can be displayed in metric or imperial units, i.e., degrees Celsius (°C) or degrees Fahrenheit (°F)
- Maximum, minimum, data hold and automatic power off (can be disabled) functions
- Programmable WBGT alarm setting with audible and visual alerts
- Manual (push-button) or automatic (adjustable 1 ... 3600 sec) sampling
- SD card memory (1 ... 16 GB) allows for quick and easy data transfer to a PC
Specifications:
| Wet Bulb Globe Temperature (WBGT) |
| Measurement range |
Indoors: 0 ... 59°C / 32 ... 138°F
Outdoors: 0 ... 56°C / 32 ... 132°F |
| Accuracy indoors |
± 1°C / ± 1.8°F from 15 ... 59°C / 59 ... 138°F
± 1.5°C / ± 2.7°F other temperature ranges |
| Accuracy outdoors |
± 1.5°C / ± 2.7 °F from 15 ... 56°C / 59 ... 132°F
± 2°C / ± 3.6°F other temperature ranges |
| Air Temperature (TA) |
| Measurement range |
0 ... 50°C / 32 ... 122°F |
| Resolution |
0.1°C / 0.18°F |
| Accuracy |
± 0.6°C / 1.08°F |
| Black-Globe Temperature |
| Measuring range |
0 ... 80°C / 32 ... 176°F |
| Resolution |
0.1°C / 0.18°F |
| Accuracy |
± 0.6°C / 1.08°F |
| Humidity |
| Measurement range |
5 ... 95% R.H. |
| Resolution |
0.1% R.H. |
| Accuracy |
> 70% RH: ± (3% read value + 1% RH)
< 70% RH: ± 3% RH |
| Dew Point Temperature |
| Measuring range |
-25.3 ... 48.9°C / -13.5 ... 120°F |
| Resolution |
0.1°C / 0.18°F |
| Wet Bulb Temperature |
| Measuring range |
-21.6 ... 50°C / -6.9 ... 122°F |
| Resolution |
0.1°C / 0.18°F |
| General Technical Specifications |
| WBGT formula |
Inside /outdoors and no sun:
WBGT= (0.7 x WB) + (0.3 x TG)
Outdoors and sun:
WBGT=(0.7 x WB) + (0.2 x TG) + (0.1 x TA) |
| Data storage intervals |
Automatically: every 1 ... 3600 seconds
Manually: with every key press |
| Memory Card |
SD memory card 1 ... 16 GB |
| Interface |
RS232 / USB |
| Display |
LCD with background lights, 52 x 38 mm / 2 x 1.5 in |
| Operation Temperature |
0 ... 50 °C / 32 ... 122°F |
| Environmental Humidity |
< 85% R.H. |
| Voltage Supply |
6 x 1.5V AA batteries or 9V Adapter |
| Power Consumption |
DC 14-mA at standard operation
DC 37-mA with data storage and without Display lights on |
| Weight |
489 g / 1.1 lbs |
| Dimensions |
Device: 177 x 68 x 445 mm / 7 x 2.7 x 17.5 in
Bulb: Ø 75 mm / 3 in |
What's In The Box:
- 1 x PCE-WB 20 SD heat stress meter
- 1 x SD card memory
- 1 x User manual
- 1 x Carrying case
