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One tester for all your daily soldering iron maintenance needs
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| One tester for all your soldering iron maintenance needs. |
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What should you check when doing a daily inspection of your soldering iron?
Grounded soldering irons are maintained by inspecting leak voltage, tip-to ground resistance, and tip temperature.
Grounded soldering irons cannot be maintained by checking insulation resistance. This method was used in the past in order to find out the level of leak current.
What is 'Leak voltage'?
Leak current is the current that leaks from the tip to a board or device. Leak voltage is a specific measurement of the level of this current. The leakage can adversely affect delicate devices, so it is necessary to check leak voltage on a daily basis.
What is 'Tip-to-ground resistance'?
Most leak current flows from the tip via the ground wire to the outlet ground terminal, and is prevented from affecting the device. Because of this, tip-to-ground resistance is another important issue that must be checked daily.
Why is tip temperature important?
As the tip, element cover and other parts oxidize, heat conduction deteriorates and the tip temperature becomes lower. This causes the difficulty of soldering. Therefore, tip temperature should be inspected daily to have better soldering.
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Maximun current value mesured with HAKKO FG-101
| 100V to 120V |
5A |
| 220V to 240V |
3A |
Note: HAKKO FG-101 is broken when beyond maximum current value is measured.
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In addition to traditional features, the FG-101 comes with two new functions: MAX HOLD and AUTO ZERO.
| MAX HOLD Function |
Constantly displays the maximum temperature |
| AUTOZERO Function |
Automatically corrects zero point error of measuring instruments |
| Traditional Features |
Lead-free sensor
Measures leak voltage by True Root Mean Square (TRMS)
Highly reliable - Resistant to drift and changes in temperature
* The FG-101 does not come with the Monitor Output function that was included in past models.
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MAX HOLD Function |
When the MAX HOLD function is on, the maximum temperature is constantly displayed on the LCD.
If the MAX HOLD button is pressed for a short time (less than 1 second) the maximum temperature is updated. If the button is pressed for a long time (1 second or longer) the MAX HOLD function turns off.
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AUTO ZERO Function |
The zero point error of measuring instruments can be corrected by simply pressing the AUTO ZERO button and waiting for the display to return to normal.
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| Part No. |
Packing List |
| FG101 |
HAKKO FG-101,Fuse,Conduction Wire,Sensor (10 pcs/set),Multi-adapter,European Adapter,Ground Clip,Power cord,Instruction Manual |
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| Model Name |
HAKKO FG-101 |
| Temperature |
Resolution |
1ºC(1ºF) |
| Measurement Range |
0 - 700ºC (32 - 1300ºF)*1 |
| Precision |
±3ºC (between 300 and 600ºC)/
±6ºF (between 572 and 1112ºF)
±5ºC/10ºF (other than above)
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| Sensor |
K (CA) type thermocouple |
| Voltage |
Resolution |
0.1mV |
| Measurement Range |
0 to 40mV (AC) |
| Precision |
± (5% of reading +1 digit) |
| Registance |
Resolution |
0.1Ω |
| Measurement Range |
0 to 40Ω |
| Precision |
± (5% of reading +1 digit) |
| Display |
LCD |
3 1/2 digits |
| Burnout*2 |
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| MAX HOLD |
(Refer to "MAX HOLD function.") |
| Power Consumption |
100V-2.6W, 110V-2.9W, 120V-2.6W,
220V-2.7W, 230V-2.8W, 240V-3.0W |
| Dimensions |
200(W)x50(H)x120(D) mm /
7.9(W)x2.0(H)x4.7(D) in |
| Weight |
1kg |
Ambient Temperature/
Humidity Range |
0 - 40ºC (32 - 104ºF), 20 - 90%RH
(Non condensation) |
| Environmental Condition |
Applicable rated pollution degree 2
(According to IEC/UL61010-1) |
*1 Temperature sensor (191-212) can only be used to measure temperatures below 500ºC (932ºF). To measure higher temperatures, use an applicable temperature probe (see "OPTIONS").
When the tip is not in contact with the conduction plate.
*2 When a sensor is not attached nor burns out, an alarm symbol of Burnout is displayed. If this alarm occurs, replace/attach with a new sensor. The same alarm symbol is also displayed when a value over the possible measurement range is detected.
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| Part No. |
Part Name |
Applicable Models |
| B1752 |
Conduction Plate |
FG-101,192 |
| B1754 |
Ground Clip |
FG-101,192 |
| B1950 |
Conduction Wire |
FG-101,192 |
| 191-212 |
Sensor/Lead free |
FG-100,FG-101,191,192 |
| Part No. |
Part Name |
Description |
| A1310 |
Temperature probe |
For soldering pot
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| C1220 |
Temperature probe |
For automatic
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| C1541 |
Temperature Probe for Hot Air |
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| A1556 |
Sensor A |
For C1541 |
| A1557 |
Sensor B |
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Do not directly contact the HAKKO FG-101 with hot air (HAKKO FR-802, etc.), during measurement. Direct contact with hot air can damage the HAKKO FG-101. |
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Ground the HAKKO FG-101 by plugging it into a grounded (3 holes) outlet. |
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HAKKO FG-101 can be used with just only grounded soldering irons to measure the leak voltage and tip-to-ground resistance, not with ungrounded ones. |
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