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6

Operation

In order to remove noise elements, measures should be taken after countermeasures 

against shielding, such as surrounding the object to be measured with a metal casing.

If the numerical value still does not stabilize, connect the attached ground wire to the 

shield part of the object to be measured, and set the shield part of the target and the 

measuring object to the same potential. (3 terminal measurement)

Countermeasure

If it is difficult to measure in an environment where the noise environment has been 

removed, such as on-site daily management, it is necessary to measure (preliminary 

evaluation) in a noise-free environment before using the ESD protection product, Please 

perform measurement before starting use.

(The measured value will change depending on the influence of humidity, temperature, 

etc. Please adjust the measurement conditions as much as possible.) If the humidity 

exceeds 60%, measurement results within the accuracy range will not be obtained.

If the measurement results of both are different, it can be inferred that the difference is 

an external factor such as a noise factor.

In daily inspection, we recommend that you manage this considering the difference.

About daily management

Tool

Shield

Insulator

Attached earth 
wire

Please insert the earth wire 
terminal through the monaural 
plug and insert it tightly until 
the terminal touches the metal 
of the jack.

Summary of Contents for F-109

Page 1: ...efore attempting to place this instrument in service Please keep this instruction manual available for reference INSTRUCTION MANUAL Identification of parts and contents Connection wire white Measureme...

Page 2: ...over less than 2 00 1012 1 00 103 or over less than 1 00 1012 10 20 for 1 00 1011 or higher 1 When less than 1 00 x 106 10 V 5 switched automatically When 1 00 x 106 or over 100 V 5 Alkaline battery...

Page 3: ...unction 5 When the device will not used for an extended period store without the battery 6 For this is a precision device avoid strong impact vibration and high temperature Caution Precautions Prepara...

Page 4: ...cord white and the electrode cord jack for monaural plug with the connection cord gray 1 Connect the electrode Please use the attached electrode alligator clip according to the measurement application...

Page 5: ...When 100 V is applied 3 When you press and hold the measurement switch 0 5 sec or more the resistance value is displayed on the display and measurement starts When the object is less than 1 106 the ap...

Page 6: ...minary evaluation in a noise free environment before using the ESD protection product Please perform measurement before starting use The measured value will change depending on the influence of humidi...

Page 7: ...urement mode How to switch measurement mode Remove the protective case and remove the 4 screws on the back side the main case opens When the switch at the upper right of the battery box is tilted to t...

Page 8: ...n the cord jack and the conductive pad is 400 or less and the resistance of the circuit as shown in the figure is 800 or less About weight Weight 2 3 kg 1 piece conforms to the standard 2 5 kg 0 25 kg...

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