The Hioki SM Series Super Megohm Meters are high resistance and ultra-low current inspection devices with a 0.1 fA resolution to offer precise testing on production lines. The SM7420 is industry's fastest 4-channel simultaneous super megohm meter that supports applications for improving the productivity of passive components such as capacitors and filters.
| Number of channels | 4 ch |
|---|---|
| DC current measurement | 20 pA range (0.1 fA resolution), Accuracy: ±(2.0 % of rdg. +30 dgt.) 200 pA range (1.0 fA resolution), Accuracy: ±(1.0 % of rdg. +30 dgt.) 2 nA range (10 fA resolution), Accuracy: ±(0.5 % of rdg. +20 dgt.) 20 nA range (100 fA resolution), Accuracy: ±(0.5 % of rdg. +10 dgt.) 200 nA range (1 pA resolution), Accuracy: ±(0.5 % of rdg. +10 dgt.) 2 μA range (10 pA resolution), Accuracy: ±(0.5 % of rdg. +10 dgt.) 20 μA range (100 pA resolution), Accuracy: ±(0.5 % of rdg. +10 dgt.) 200 μA range (1 nA resolution), Accuracy: ±(0.5 % of rdg. +10 dgt.) *2 mA range (1 nA resolution), Accuracy: ±(0.5 % of rdg. +30 dgt.) (1) Measurement speed SLOW2 (internal integration time 13PLC) (2) At a temperature of 23 °C ±5 °C with humidity of 85% rh (3) 2 mA range (Measurement speed FAST only) |
| Resistance measurement capabilities | 50 Ω to 2 × 10 ^19 Ω Note: Resistance measurement accuracy is defined by the current range accuracy and voltage setting accuracy. |
| Measurement time setting | Delay: 0 to 9,999 msec |
| Functions | CH independent low capacity contact checks, CH independent cable length correction, CH independent jig capacity open compensation, comparator |
| Display | LCD (8 lines of 30 characters), with backlight, high voltage warning indicator |
| Interfaces | USB, RS-232C, GP-IB, EXT I/O (NPN/PNP can be switched) |
| Power supply | 100 to 240V AC , 50/60 Hz, 45 VA |
| Dimensions and mass | 330 mm (12.99 in)W × 80 mm (3.15 in)H × 450 mm (17.72 in)D, 6.5 kg (229.3 oz) |
| Included accessories | Power cord ×1, Instruction manual ×1, CD-R (Communications command instruction manual, USB driver) ×1, EXT I/O male connector ×1 |
