28920 Avenue Williams • Valencia • California 91355
Tel 661.294.0090 • Fax 661.294.0096 • www.HakkoUSA.com
American Hakko Products, Inc.
HAKKO FG-101 Calibration Instructions
Revision 2013-10
Tools Required:
•
Room Temperature Thermometer
•
Yokogawa CA-71 Portable Calibrator or equivalent
•
Yokogawa 2786 Decade Resistance Box or equivalent
•
Fluke 87 Digital Multimeter or equivalent
•
Phillips head screwdriver
•
Calibration Trimmer Potentiometer screwdriver
Temperature Measurement Calibration
IMPORTANT: Be sure to attach the thermometer reference junction temperature detection sensor
(For Yokogawa the part number is RJ Sensor B9638CR) and place it near the HAKKO FG-101 being
calibrated. Failing to do so will result in a faulty calibration.
IMPORTANT: Be sure to allow the calibration tools and the HAKKO FG-101 being calibrated to
acclimate to their environment for 30 to 40 minutes. The ideal environment for performing the
calibration will be a room temperature of 23°C ±3°C and a relative humidity between 20% and 80%.
The conditions in the room should be stable, specifically the temperature no fluctuating more than
±1°C during the calibration process.
1.
Set the Yokogawa CA-71 Portable Calibrator or equivalent device for source operation and to
output a Type-K Thermocouple signal.
2.
Plug in the HAKKO FG-101 and turn the unit on.
3.
Select the TEMP measuring mode on the HAKKO FG-101.
4.
Remove the sensor wire from the HAKKO FG-101.
5.
Open the HAKKO FG-101 by removing the 5 Phillips screws along the front and back of the
casing.
6.
Carefully separate the two halves of the unit, tipping the top half of the unit towards you and
resting it upside down, revealing the PCB.
7.
Press the CAL button (SW 2) located at the lower left-hand corner of the PCB from your view.
8.
Carefully rotate the top half of the unit to re-assemble the two halves and give you a clear view
of the LCD display. Verify that the LCD display shows ‘CAL’, 500, and °C. If the HAKKO FG-101 is
