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General| Resolution (µT) | 0.01 µT |
|---|---|
| Data Hold | Yes |
| Auto Power Off | Yes |
| Display | LCD |
| Frequency Range | 50 Hz ~ 60 Hz |
| Battery | 9V battery |
Overview of the meter's key features and sensor technology.
Describes the sensor responsible for accurate WBGT measurements.
Features for recording and retaining maximum/minimum values.
Indicates when the meter's battery level is low.
Details the display screen and its illumination feature.
Functionality for single data recording and storage capacity.
Procedure for accessing stored measurement data.
Option to change the temperature display unit.
Configuration for setting WBGT alarm thresholds.
Feature for automatic power-off and its disabling.
Describes the USB interface for data transfer.
Storage capacity for logged data on the TM-188D model.
Settings for data logging frequency.
WBGT specs for indoor and outdoor use without direct sun.
WBGT specs for outdoor use with direct sun.
Specifications for air temperature measurement.
Specifications for black globe temperature measurement.
Specifications for relative humidity measurement.
Specifications for dew point temperature measurement.
Specifications for wet bulb temperature measurement.
Physical dimensions and weight of the instrument.
Measurement rate and power source requirements.
Battery duration and recommended operating/storage conditions.
Details on data output and LCD screen.
List of items included with the meter.
Warning about potential damage from improper placement.
Recommendation for annual factory maintenance for accuracy.
Statement regarding EMC testing and standards compliance.
Indications for WBGT, TA, TG, WET, DEW, and %RH.
Symbols for HOLD, MAX/MIN, USB, Alarm, Record, Set, and Auto Power Off.
Indicators for temperature units, indoor/outdoor modes, and time/date.
Symbols for low battery and other status notifications.
Procedure to power the meter on or off using the button.
Action to display all symbols and firmware version upon startup.
Meter powers off after 15 minutes of inactivity.
Procedure to turn the alarm function on or off.
Conditions under which the alarm function is disabled.
Method to disable or enable automatic shutdown.
Conditions that disable the auto power off feature.
Turning the LCD backlight on and its auto-off timer.
Changing the displayed temperature unit (°C/°F).
Cycling through measurement units (WBGT, TA, etc.).
Switching display between IN and OUT in WBGT mode.
Conditions that make the mode function unavailable.
Activating the data hold feature.
Conditions that make the data hold function unavailable.
Saving the current reading with REC and R symbols.
Conditions that make single data recording unavailable.
Activating or deactivating the data record viewing mode.
Accessing the count of stored data records.
Switching display modes within data records.
Accessing the date and time of recorded data.
Changing temperature unit while viewing records.
Procedure to leave the data record viewing mode.
Activating the auto data logger function.
Deactivating the auto data logger function.
Conditions that make auto data logger mode unavailable.
Activating the maximum/minimum display mode.
Cycling between maximum and minimum values.
Procedure to leave the MAX/MIN mode.
Conditions that make MAX/MIN mode unavailable.
Indication on the LCD when USB cable is connected.
Instructions to access the meter's setting and calibration menu.
Setting high/low thresholds for WBGT alarms using figures A & B.
Initiating setting mode and changing temperature units.
Selecting digits to adjust and changing parameter values.
Confirming and saving the applied settings.
Procedure for setting the year on TM-188D.
Procedure for setting month and date on TM-188D.
Procedure for setting hour and minute on TM-188D.
Procedure for setting seconds on TM-188D.
Setting sampling interval in hours and minutes on TM-188D.
Setting sampling interval in seconds on TM-188D.
Procedure for erasing stored measurement data.
Calibrating the air temperature sensor offset.
Calibrating the humidity sensor offset.
Calibrating the black globe temperature sensor offset.
Table of WBGT values for heat stress assessment.
Examples of physical activities categorized by metabolic rate.
Warning about EMI affecting meter readings.
Caution against touching the black ball during measurements.
Warning about deformation affecting measurement accuracy.
Step-by-step guide for installing the TM-188D software.
Instructions to access the website and download software and guides.
Guidance for software usage and operation.
Voltage, current, and connector details for the DC adapter.
Safety advice on avoiding direct sunlight and dampness.
Maximum operating altitude for the meter.
Indication and action for low battery status.
Recommendation to remove battery during extended periods of non-use.
Steps for safely replacing the battery.
Warning to remove battery if meter is not used.
Explanation of the waste disposal symbol.
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