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Disconnect any electronic devices like motor drives, PLC’s, transmitters, etc. before performing insulation testing. Electronics can be damaged by applying higher than normal voltage.
The effect of temperature should be considered - it is recommended that tests be performed at a standard conductor temperature of 20 °C (68 °F) or that a temperature baseline is established while compensating future readings by using a DMM with a probe or an infrared thermometer.
Select a test voltage appropriate for the insulation being tested. The objective is to stress the insulation but not to over-stress it. When in doubt, use a lower test voltage. It’s usually appropriate to test insulation at twice the voltage it normally sees: for example 460 V to 600 V rated equipment is often tested at 1000 V.
When using an insulation tester, leave the leads connected when you stop the test. The insulation tester can discharge any residual test voltage.
Conductors that are close to each other have a normal capacitance. This will cause an insulation resistance reading to start low and increase steadily until it stabilizes. This type of increase is normal, but if the reading jumps violently down and up again this indicates arcing.
Although the current is tightly limited, an insulation tester can generate sparks and minor but painful burns. The unexpected surprise can cause an operator to jerk away. As always, work away from live systems and use safe work practices when working overhead.
Facilities Maintenance Challenges and the Fluke SolutionsFacilities maintenance professionals face a wide range of challenges, from electrical and mechanical equipment uptime to overall safety concerns. It’s critical to maintain facilities and the associated assets at peak performance. Let's review the issues faced by maintenance managers, IT support, and electrical/mechanical technicians. Along with the Fluke solutions that offer to save you time and money while increasing efficiency and safety. Fluke makes reliable, rugged and accurate tools to maintain electromechanical systems, motors, pumps, electrical distribution systems and more to keep your world up and running.
| Voltage DC | |
| Maximum Voltage | 1000 V |
| Accuracy | ±(0.2% + 2) |
| Maximum Resolution | 0.001 V |
| Voltage AC | |
| Maximum Voltage | 1000 V |
| Accuracy | ±(2% + 3) |
| Maximum Resolution | 0.1 mV |
| Current DC | |
| Maximum Amps | 400 mA |
| Amps Accuracy | ±(1.0% + 2) |
| Maximum Resolution | 0.01 mA |
| Current AC | |
| Maximum Amps | 400 mA |
| Amps Accuracy | ±(2.0% + 2) |
| Maximum Resolution | 0.01 mA |
| Resistance | |
| Maximum Resistance | 50 MΩ |
| Accuracy | ±(1.2% + 2) |
| Maximum Resolution | 0.1 Ω |
| Insulation Test | |
| Minimum Test Current at 1 kΩ/V | 1 mA |
| Test Voltages | 500, 1000 V |
| Maximum Resistance per Test Voltage | 50 V 100 V 250 V 500 V 1000 V: 600 MΩ |
| Maximum Resolution per Test Voltage | 50 V: 0.01 MΩ 100 V: 0.01 MΩ 250 V: 0.1 MΩ 500 V: 0.1 MΩ 1000 V: 0.1 MΩ |
| Accuracy per Test Voltage | 50 V: ±(3% + 5) 100 V: ±(3% + 5) 250 V: ±(1.5% + 5) 500 V: ±(2.0% + 5) 1000 V: ±(2.0% + 5) |
| Environmental Specifications | |
| Operating Temperature | -4 to 131°F (–20 to 55°C) |
| Storage Temperature | -40 to 140°F (-40 to 60°C) |
| Humidity (Without Condensation) | 0 to 95%: 50 to 86°F (10 to 30°C) 0 to 75%: 86 to 104°F (30 to 40°C) 0 to 40%: 104 to 131°F (40 to 55°C) |
| Operating Altitude | 6561.68' (2000 m) |
| Mechanical and General Specifications | |
| Battery Life Alkaline | Meter use: 1000 hours Insulation test use: Meter can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off |
| Dimensions | 7.99 x 3.94 x 1.97" (203 x 100 x 50 mm) (with holster) |
| Weight | 22 oz (624 g) |
| IP Rating | IP40 |
| Safety Specifications | |
| Overvoltage Category | Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2nd Edition for measurement CAT III 1000 V and CAT IV 600 V |
| Agency Approvals | 2000 m CAT III 1000 V, CAT IV 600 V; 3000 m CAT II 1000 V, CAT III 600 V |
All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.
(Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)
Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.
We can ship to both US and Canada. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will charge a flat rate shipping for your items.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Not Applicable
| Condition: | NA |
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.
(Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)
Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.
