Automatic discharge of the circuit after testing, audible and visual warning if the test probes are applied to a live circuit, and a test inhibit feature which operates automatically under live circuit conditions. The units also conform fully to iec 61010-1 for use in category iii 600v applications, and provide all of the facilities needed to meet insulation testing requirements relating to the current edition of the iee wiring regulations. In line with other products in the contractor range, mit300 insulation testers feature rugged construction, with an impact-resistant rubber-overmoulded case, and innovative circuitry which guarantees high accuracy combined with stability of calibration. Both provide indication of insulation resistance up to 999m ohms, 200ma continuity testing, a fast-reacting continuity buzzer, and facilities for nulling the resistance of the test leads. The entry-level mit300 offers insulation test voltages of 250v and 500v, the mit310 allows testing at 250v, 500v and 1,000v. In addition to the basic features, the mid-range mit310 adds a default voltmeter function. The mit310, incorporates a dual solid-state displays which simultaneously show the test results numerically, and in the form of a moving-arc bar graph that accurately simulates the operation of an analogue meter. Both come complete with a full calibration certificate. UK supply of quality electrical insulation testers by Avo, buy online with confidence at best discount price and fast shipping. Manufacturer product ID MIT310.
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