Frequently Asked Questions about HAKKO FG100B-83 Soldering Iron Tip Thermometer:

1/ What is the HAKKO FG100B-83?

The FG100B-83 is an electronic soldering iron tip thermometer designed to measure tip temperature from 0 to 700°C with 1°C resolution.

2/ What type of thermocouple sensor does it use?

It uses a slim K-type thermocouple sensor (AS5000), optimized for fast and accurate readings.

3/ How long does the sensor last?

The AS5000 sensor maintains measurement accuracy for up to 1,500 readings - around 30 times longer than the conventional sensor.

4/ Can I replace the sensor? What are the replacement parts?

Yes. The AS5000 sensor (P/N 191-212) is replaceable. For measurements above 500°C, a specialized probe such as P/N: A1310 is recommended.

5/ How do I turn the unit on and off, and change the battery?

Press and hold the power button for about 2 seconds to turn on or off. It uses a 9V alkaline battery, and automatically shuts off after 3 minutes of inactivity below 100°C.

6/ What are the AUTO HOLD and MAX HOLD functions?

AUTO HOLD ends the measurement when the tip reaches a stable temperature. MAX HOLD displays the highest temperature recorded during the measurement cycle.

7/ How can I record or export measurement data?

By using an connection to compatible HAKKO soldering stations (e.g., FN-1010, FX-805), you can transfer AUTO HOLD or MAX HOLD readings directly into your station’s log.

8/ How often should I calibrate the FG100B-83?

Calibration is recommended every 6 to 12 months or after approximately 200 to 300 measurements to ensure ongoing accuracy.

9/ How do I clean and store the thermometer?

Wipe the housing with a soft, dry cloth. Store the unit in its protective case away from humidity and extreme temperatures.

10/ Any tips to prolong its lifespan?

Avoid excessive force on the sensor tip, use high quality solder and flux to reduce corrosion, and replace the sensor at the first sign of measurement drift.

11/ What does the “burnt out” error mean?

It indicates a damaged or disconnected sensor, requiring immediate replacement of the AS5000 sensor.

12/ Why is the measured temperature lower than expected?

Possible causes include a worn sensor, poor tip-to-sensor contact, or low battery voltage.

13/ The unit won’t power on - what should I check?

Verify the battery is installed correctly and charged, ensure the sensor connector is fully seated, and contact service - QTE Technologies (qtetech.com/en) if the mainboard is suspected faulty.

14/ How does FG100B-83 differ from FG100B-84?

The FG100B-84 offers a longer, flexible sensor lead for hard-to-reach tips, while the FG100B-83 has a compact integrated sensor for quick measurements.

15/ What are typical applications for this thermometer?

It’s used to standardize soldering tip temperature in electronic component manufacturing, PCB quality control, and training of soldering technicians.