HIOKI daily SM7120 high resistance meter

■A super insulation meter with multiple usage methods

Super insulation meter is a measuring instrument that can be used as a high resistance meter such as IR meter, electrostatic meter, and as a small current meter such as picoammeter, with a wide range of usage methods.
Moreover, HIOKI's self-designed floating circuit can perform stable measurements without being affected by the measurement environment, and is used in production lines to achieve high-speed measurements.

■Deviation 1/60, noise resistance performance 300 times

By combining the new SM floating circuit and three-axis connector, the noise resistance performance is significantly improved.

■High resistance measurement at 2000V/20000P Ω

Capable of outputting a voltage of 2000V (with a resolution of 0.1V), with a maximum display of 20000P Ω (P=10E+19)
[Example of Setting Voltage and Resistance Display Range]
The display range of resistance varies depending on the current range. Attention should be paid when setting the current range to automatic and using resistance display mode.

Suitable for high-voltage environments such as EVs

In recent years, with the increasing demand for high efficiency represented by automotive components and wearable devices, the high voltage resistance and insulation performance of components must also be improved. Because SM7120 can output 2000V without an external power source, it can be used with confidence even in the event of increased inspection requirements in the future.

※2×1019Ω＝20,000P(peta)Ω

■Adopting large-diameter three-axis connectors

SM7110/SM7120 adopts a 16mm large-diameter three-axis connector.
Balancing stability against noise and safety during high-voltage inspections.
■The fastest high-speed inspection is 6.4ms

6.4ms=Measurement 4.1+Contact Check 2.3ms
The combination of high-speed inspection and a maximum 50mA pre charging function can achieve high-yield MLCC inspection.

The large capacity of 2000V/1.8mA (SM7120 only) and 1000V/10mA can shorten the charging time of the tested object. [Standard charging port]

■High performance contact inspection that can also be used in Pian meter mode

Like a picometer, it is equipped with a contact check function that can also be used in measurements using external power sources. The corresponding range is from 0.1pF to low capacitance determined by the threshold.
You can choose the frequency for inspection, so multiple measuring instruments can also be used for testing on site.

High speed micro current measurement and large capacity output suitable for MLCC mass production line

[Input impedance 1k Ω]

All current ranges and speed settings of SM7120 are set to a low resistance of 1k Ω, so there will be no delay due to the "set time".

There is no speed reduction caused by range switching, so it is very suitable for mass production lines.

[Maximum 50mA/250V, 1.8mA/2000V high-capacity output, low noise]

In order to measure the insulation resistance of capacitive test materials such as MLCC, in addition to checking the speed, the charging time when applying voltage is also important. By shortening this charging time, the inspection process can be shortened. The SM series is equipped with a large capacity and low-noise power supply, so it can be used with confidence for higher performance measurements such as MLCC.

■More applications of the product

●Insulation degradation test for ceramic components
●IR measurement of surface mount capacitors
●Insulation measurement of MLCC (multi-layer ceramic capacitor)
●Insulation measurement of photovoltaic cell thin film
●Insulation (high resistance) measurement of noise filters
●Insulation measurement of LCD devices
●Measurement of surface resistivity of coatings (paints)
●Measurement of the Chargeability of the Shell
●Measurement of Smiling Leakage Current of Diode
●Measurement of primary/secondary insulation (high resistance) of optocouplers
●Insulation measurement of printer toner roller shaft
●Used for evaluation testing of insulation seals for semiconductor manufacturers
●Used for assembly in surface mount machines, sorting machines, and automation equipment