HIOKI SM7xxx Series Megohm Meters and Low Current Testers

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Benefits of the SM7110, SM7120, SM7420 Picoammeters

  • 1- and 4-channel megohm meters and low current/micro current testing.
  • Fastest speed up to 6.4 ms.
  • Wide LCD; USB and other interfaces.

HIOKI SM7xxx Series Megohm Meters and Low Current Testers

HIOKI SM7110, SM7120 Megohm-Meters, SM7420 Micro-Current-Meter

The HIOKI SM7xxx Series are super megohm meters/picoammeters with a fastest speed of 6.4 ms. The SM7110 and SM7120 have 1 channel with max. 1000 V output (SM7110), or max. 2000 V output (SM7120), max. 2 * 1019 Ω display, and min. 0.1 fA resolution. The model SM7420 has 4 channels and is dedicated to micro current measurement (no voltage generation or measurement) with max. 2 * 1019 Ω display, and min. 0.1 fA resolution.

  • Models SM7110 and SM7120:
    1-channel megohm meters/picoammeters.
    Max. 1000 V output (SM7110), or max. 2000 V output (SM7120).
    Max. 2 * 1019 Ω display.
    Min. 0.1 fA resolution.
  • Model SM7420:
    4-channel micro current meter perfect for automated-systems integration (no voltage generation or measurement).
    Max. 2 * 1019 Ω display.
    ;Min. 0.1 fA resolution.
  • Fastest speed 6.4 ms.
  • LCD with backlight.
  • USB, RS232C, GPIB, EXT I/O interfaces.

Model Overview

ModelHIOKI SM7110HIOKI SM7120HIOKI SM7420
Number of channels114
DC current measurement20 pA range (0.1 fA resolution), accuracy: ±(2.0% of rdg. + 30 digits);
200 pA range (1.0 fA resolution), accuracy: ±(1.0% of rdg. + 30 digits);
2 nA range (10 fA resolution), accuracy: ±(0.5% of rdg. + 20 digits);
20 nA range (100 fA resolution), accuracy: ±(0.5% of rdg. + 10 digits);
200 nA range (1 pA resolution), accuracy: ±(0.5% of rdg. + 10 digits);
2 µA range (10 pA resolution), accuracy: ±(0.5% of rdg. + 10 digits);
20 µA range (100 pA resolution), accuracy: ±(0.5% of rdg. + 10 digits);
200 µA range (1 nA resolution), accuracy: ±(0.5% of rdg. + 10 digits);
*2 mA range (1 nA resolution), accuracy: ±(0.5% of rdg. + 30 digits)

Measurement speed SLOW2 (internal integration time 13PLC).
At a temperature of 23°C ±5°C with humidity of 85% rel. humidity
2 mA range (measurement speed FAST only)
Resistance measurement capabilities1 * 103 Ω...2 * 1019 Ω50 Ω...2 * 1019 Ω
Note: Resistance measurement accuracy is defined by the current range accuracy and voltage setting accuracy.
Setting voltage range (accuracy)0.1...100.0 V, 100 mV resolution, accuracy: ±0.1% of setting ±0.05% f.s.;
100.1...1000 V, 1 V resolution, accuracy: ±0.1% of setting ±0.05% f.s.
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Current limiter0.1...250.0 V: 5/10/50 mA, 251...1000 V: 5/10 mA, to 2000 V: 1.8 mA-
Measurement time settingDelay 0...9,999 ms
FunctionsComparator, averaging, self-calibration, jig capacity open correction, cable length correction, surface resistivity, volume resistivity, voltage monitor, contact check.
Program function: 10 types of discharge, charge, measure and measurement sequence discharge patterns can be programmed
Channel-independent low capacity contact checks, channel-independent cable length correction, channel-independent jig capacity open compensation, comparator
DisplayLCD (8 lines of 30 characters), with backlight, High voltage warning indicator
InterfacesUSB, RS232C, GPIB, EXT I/O (NPN/PNP can be switched)
Power supply100...240 VAC, 50/60 Hz, 45 VA
Dimensions (mm)330 x 80 x 450, 5.9 kg, SM7420: 6.5 kg

Included: HIOKI SM 7110, 7120, or 7420, power cord, instruction manual, CD (communications command instruction manual, USB driver), EXT I/O male connector, SM7110 and SM 7120: Short plug.