Insulation resistance meter consisting of a constant voltage power supply and a high sensitivity current measuring element, and are designed to measure the electrical resistance of insulation materials with high insulating properties. Measurement voltage can be set from 10 to 1,000 V.
Insulation resistance meter consisting of a constant voltage power supply and a high sensitivity current measuring element, and are designed to measure the electrical resistance of insulation materials with high insulating properties. Measurement voltage can be set from 10 to 1,000 V.
Discontinued!
This product has been discontinued and is no longer available.
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Measures up to 2 × 1016 Ω, the highest range available in our super megohmmeters.
The SM-8220 is a top-of-the-line super megohmmeter that can measure up to 2 × 1016 Ω (at 1,000 V). The combined digital and analog display is the latest evolutionary step combining our line of super megohmmeters with the newest technology. This powerful super megohmmeter handles a variety of insulation measurements, from those requiring low to high measurement voltages and measuring from low to ultra-high resistance.Convenient standard features include timer, comparator, remote start and Interlock(HV-EN) functions. These enable safer and more reliable measurement of volume and surface resistivity using flat sample text fixtures (such as the SME-8310).RS-232C communication functions required for measurement by computer are included as a standard feature.
Features
Display Features
Clear, three-mode liquid crystal display- Bright LCD simultaneously displays data in three modes: quasi-bar-graph, virtual needle and numeric values.
Clear graduated scale and precise data reading- The one-line graduated scale is always visible, and scales automatically according to the selected measurement voltage. Data is held on the display after measuring, so there is no hurry to read it. The numeric readout displays measured values at maximum resolution.
Enhanced response speed and reliability- Reliability is enhanced because, unlike analog meters, the LCD has no moving parts, and the virtual needle responds seven times faster than a mechanical needle.Installation in automated systems is supported.
Usability Features
Timer function included as a standard feature- The need for counting complicated measurement time (by stopwatch) is eliminated.Timer settings are retained in internal memory even when power is turned off.
Comparator functions included as a standard feature- Easy-to-use GO/NO-GO (Pass/Fail) decisionsNO-GO (Fail) decisions can be indicated by an alarm sound simultaneously with contact output.Comparator settings are retained even when power is turned off.
Remote Start function included as a standard feature- Measurement can be started hands-free, using a foot switch or trigger signal.
Compact and lightweight- 16% lighter and 22% more compact than previous models. The small attached stand makes operation even easier: panel buttons are easy to press and the display is easy to see.
| Measurement voltage and measurement range | 10 V = 5×104~2×1014 Ω 25 V = 1.25×105~5×1014 Ω 50 V = 2.5×105~1×1012 Ω 100 V = 5×105~2×1012 Ω 250 V = 1.25×106~5×1012 Ω 500 V = 2.5×106~1×1013 Ω 1000 V = 5×106~2×1013 Ω |
| Measurement voltage accuracy | ±3% of setting value |
| Output current | Max. 2 mA |
| Measurement accuracy | ±10% (ten times the minimum value for each range at 20°C) Except for the 108 range of the SM-8220, which is ±20% |
| Display type | LCD (Digital numeric & virtual analog display) |
| Standard features | Timer (1 to 999s), Comparator, Remote Start, HV-EN (Interlock) |
| Interface | RS-232C, Comparator output (open-collector) |
| Operating temp. range | 5 to 35°C |
| Operating humidity range | 85% or less |
| Supply voltage | 100, 120, 220 or 240 V AC ±10% (specify when ordering) |
| Supply frequency | 50 or 60 Hz |
| Power consumption | Approx. 25 VA |
| External dimensions | Approx. 284W × 139H × 215D mm |
| Weight | Approx. 4.3 kg |
| Measurement voltage and measurement range | 10 V = 5×104~2×1014 Ω 25 V = 1.25×105~5×1014 Ω 50 V = 2.5×105~1×1012 Ω 100 V = 5×105~2×1012 Ω 250 V = 1.25×106~5×1012 Ω 500 V = 2.5×106~1×1013 Ω 1000 V = 5×106~2×1013 Ω |
| Measurement voltage accuracy | ±3% of setting value |
| Output current | Max. 2 mA |
| Measurement accuracy | ±10% (ten times the minimum value for each range at 20°C) Except for the 108 range of the SM-8220, which is ±20% |
| Display type | LCD (Digital numeric & virtual analog display) |
| Standard features | Timer (1 to 999s), Comparator, Remote Start, HV-EN (Interlock) |
| Interface | RS-232C, Comparator output (open-collector) |
| Operating temp. range | 5 to 35°C |
| Operating humidity range | 85% or less |
| Supply voltage | 100, 120, 220 or 240 V AC ±10% (specify when ordering) |
| Supply frequency | 50 or 60 Hz |
| Power consumption | Approx. 25 VA |
| External dimensions | Approx. 284W × 139H × 215D mm |
| Weight | Approx. 4.3 kg |
