Why Jumper JPD-FR403 Thermometer fails to power on?
Your Jumper Thermometer might not be powering on due to several reasons: the batteries may be low (in this case, change the batteries), the polarities of the batteries might be reversed (make sure that the batteries are installed correctly), or the thermometer itself could be damaged (in this case, contact the manufacturer).
What to do if temperature reading is lower than normal on Jumper JPD-FR403 Thermometer?
If your Jumper Thermometer shows a temperature reading lower than the typical body temperature range, it could be due to a few reasons. The lens of the temperature probe might be dirty, so try cleaning it with a cotton swab. Alternatively, the thermometer probe might not be aligned correctly with the eardrum; reposition it to ensure proper alignment. Also, if the thermometer was recently moved from a cold environment, wait more than 30 minutes before using it to take a measurement.
What does "Er1" mean on my Jumper JPD-FR403?
If your Jumper Thermometer displays "Er1", it means the ambient temperature is either lower than 10°C (50.0°F) or higher than 40°C (104°F). To resolve this, take a measurement when the ambient temperature is between 10°C (50.0°F) and 40°C (104°F).
General| Response Time | 1 second |
|---|---|
| Display | LCD |
| Power Supply | 2 x AAA batteries |
| Automatic Shut-off | Yes |
| Type | Infrared Thermometer |
| Measurement Range | 32°C - 42.9°C (89.6°F - 109.2°F) |
| Accuracy | ±0.2°C (±0.4°F) |
Infrared Thermometer JPD-FR403 measures body temperature based on infrared energy emitted from the eardrum or forehead.
The thermometer consists of a shell, an LCD, a measure button, a beeper, an infrared temperature sensor, and a Microprocessor.
The infrared temperature sensor collects infrared energy emitted by the eardrum or skin surface.
Measures human body temperatures; forehead mode for all ages, ear mode for >3 months old.
Do not use if the ear is infected with otitis or suppuration.
Highlights good safety features and high measurement accuracy.
Focuses on easy operation and quick measurement for user convenience.
Covers diverse functions, broad application scope, and child mode operation.
Displays 'HI' or 'Lo' for readings outside the normal temperature range.
Instructions for toggling the sound on or off and the mute symbol display.
Procedure for switching between object and forehead/ear measurement modes.
Instructions on how to change the temperature units from Fahrenheit to Celsius and vice versa.
Guidance on recalling measurements and cleaning the thermometer after use.
Indicates ambient temperature is too high or too low.
Indicates data read/write error or incomplete temperature correction.
Alerts when battery voltage drops below a critical level.
Recommended detergents and steps for cleaning the thermometer probe and body.
Recommended disinfectants and steps for disinfecting the thermometer.
Covers regular safety checks, cleaning, storage, and battery removal for long-term storage.
Provides declarations and guidance regarding electromagnetic emissions for the device.
Provides declarations and guidance regarding electromagnetic immunity for the device.
Details immunity requirements for systems not supporting life, including ESD and magnetic fields.
Specifies minimum distances for RF communications equipment to ensure EMC compliance.
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