Kyoritsu 3021 Advanced Digital Insulation and Continuity Tester, 125/250/500/1000 Voltage Item Description Digital megohmmeter has four test voltages for measuring insulation resistance to 2,000 megohms, and also measures low-resistance to 400 ohms Auto-ranging meter automatically selects the appropriate operating range for measurements Measures AC and DC voltage to 600V, lighting a warning indicator and sounding a buzzer when a live circuit is detected Comparator function allows a reference value to be set and lights a "pass" or "fail" indicator for subsequent readings Meets IEC safety standard 61010-1 and is rated for CAT III installations to 600V SPECIFICATIONS The Kyoritsu digital megohmmeter is an auto-ranging insulation tester with four test voltages for measuring insulation resistance to 2,000M? to indicate the condition of windings or cables in motors, switchgears, electrical installations, and other insulated equipment, and it also measures low-resistance to 400? and AC and DC voltage to 600V, lighting a warning indicator and sounding a buzzer when a live circuit is detected. The comparator function allows a reference resistance value to be set, lights a "pass" or "fail" indicator for subsequent readings, and triggers a buzzer when a reading exceeds the reference value. Up to 99 insulation resistance readings can be stored in the unit's internal memory. When measurement is complete and the range selector is switched off, residual voltage is automatically discharged from the circuit under test. The test button can be locked for extended measurement sessions. The meter has an LCD with a backlight for visibility in low light that automatically turns off after 60 seconds. The display shows readings numerically and in a bar graph. Megohmmeters are commonly used for electrical maintenance and testing in industries such as HVAC, transportation, manufacturing, mining, and utilities, among others. This auto-ranging meter automatically selects the appropriate operating range for measurements. It is rated for category (CAT) III installations to 600V, which covers equipment in fixed installations, such as switches in the fixed installation and some industrial equipment that is permanently connected to the fixed installation. It automatically turns off after 15 minutes of non-use to conserve battery life and has a low-battery indicator that signals when the batteries need to be replaced. It comes with a set of test leads with a remote control switch for initiating a test, a test bar, a safety alligator clip, an extension prod, a test lead storage pouch, six AA batteries, and instructions. Specifications Maximum insulation resistance measured 2,000M? Test voltages B009TAL7KE: 50V, 100V, 250V, 500V ; B009TAL8S0: 100V, 250V, 500V, 1,000V; B009TAL61E: 125V, 250V, 500V, 1,000V Maximum low-resistance measured 400? Maximum AC and DC voltage measured 600V Installation rating CAT III, 600V Standards met IEC safety standards 61010-1; CE marking Power (6) AA batteries Weight 600g Dimensions (H x W x D)* 70 x 158 x 105mm *H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back .Megohmmeters, also called insulation testers, are electrical test meters that measure resistance to the flow of current in an electrical component or circuit and check the continuity of an electrical circuit to detect electrical problems such as degraded insulation and improper circuit connections in equipment, wiring, and power supplies. Resistance is an indicator of the overall condition of the device being tested. Megohmmeters have an internal power supply, such as a battery or a capacitor, which supplies a test voltage to a circuit or component that is turned off. Test leads are connected in a series to the tester and the circuit or device being tested. The meter calculates the difference in voltage between the leads and measures the resistance. Most megohmmeters have two terminals for test lead attachment. The two-terminal, or two-wire, measurement method includes the resistance of the circuit or device being tested and the resistance of the test leads, and generally provides sufficient accuracy for measuring large values of resistance in insulation testing applications. Kyoritsu manufactures electrical testing and measurement instruments such as multimeters, clamp meters, and power quality analyzers. The company, founded in 1940, is headquartered in Tokyo, Japan. What's in the Box? Kyoritsu digital megohmmeter Set of test leads with remote control switch Test bar Safety alligator clip Extension prod Test lead storage pouch (6) AA batteries Instructions ADDITIONAL FEATURES Manufacturer: Kyoritsu Shipping Weight: 220 Product Dimensions: Width: 6.00 Length: 6.90 Height: 3.20 SHIPPING INFORMATION ● Our stock all ships from our US-based warehouses. ● Shipped via USPS or UPS (depending on location and package weight) ● Unless stated otherwise, all orders will ship within 24 hours of your payment being processed. Check our feedback to see the great reviews of FAST shipping we offer. ● Shipping is always FREE! RETURN & REFUND POLICY ● We offer a 30 day return/exchange policy for our products. ● You can choose refund or exchange if you are dissatisfied for any reason with your product. ● Only factory defects are accepted as a reason for a return. In the case of factory defects, we will replace the product for you. ● When returning an item, it must be in all of the original packaging and include all of the original accessories or items that came with it. The item and package should be in original and perfect condition. ● You will be required to cover shipping on the return of defective items. ● All returns MUST be done within 30 days of date of purchase. Please note that we cannot give refunds or replacements after the 30 day limit has expired. ● When sending in a return, please note that it can take up to 7 business days for the return to be processed. We do our best to process as quickly as possible. ● Buyers outside the U.S.A please note - ALL of our electrical appliances sold in our store are 110-120V. ● Return policy for buyers outside the U.S.A - We offer to return the items within 30 days. The BUYER will ship the item at his own cost. 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