Techno Scientific Co.

An insulation tester performs the basic measuring function a megohmmeter does — measuring very high resistance values by sending a high voltage signal into the object being tested — and it often does much more; it usually performs more functions, including more complex testing and recording of measurements.

The Fluke 1550C FC performs digital insulation testing up to 5 kV, and its the perfect tool for preventive or predictive maintenance programs designed to identify potential equipment failures before they occur. 

Other useful features:

• Automatic calculation of Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
• Guard system eliminates the effect of surface leakage current on high-resistance measurements
• Selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V
• CAT III 1000 V, CAT IV 600 V safety rating
• Warning function alerts the user that line voltage is present and gives the voltage reading up to 600 V AC or DC for increased user safety
• Measurements can be stored in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
• Long battery life gives the user over 750 tests between charges
• Large digital/analog LCD for easy viewing
• Capacitance and leakage current measurement
• Ramp function for breakdown testing
• Resistance measurements up to 2 T
• Timer settings up to 99 minutes for timed tests

• Insulation Resistance up to 1TΩ
• Short-Circuit Current up to 1.5mA
• Wide Test Voltage from 250V to 5000V
• Diagnosis Function of PI and DAR
• Newly-designed alligator clip
• It comes with a tough hard case
• Filter function reduces noise interference for obtaining stable measurement
• Large display with Bar Graph indication and backlight
• Live voltage warning
• Safety standard IEC 61010-1 CAT IV 300V / CAT III 600V

The MIT230 incorporates a range of safety and operation features in one of the smallest electrical insulation testers available. Its LCD offers a combination of digital readout and analogue display, with an analogue pointer response for evaluating circuit charge and discharge characteristics. The instrument housing is in tough ABS.

Features & Benefits:

• Insulation testing to 1000 MΩ
• Dual & triple test voltages models
• Digital display with electronic analogue arc display helps to confirm insulation condition & to monitor fluctuating readings not apparent on the digital display 
• Continuity testing at 200 mA down to 0.01 Ω resolution
• Automatic discharge of circuit under test 
• 1 mA test current at selected voltage range 
• Default voltmeter automatically switches in when the instrument is connected to a circuit with an AC or DC voltage greater than 25 V
• Auto-ranging analogue arc scale shows only the scale in use 
• Live circuit warning above 25 V, also inhibits insulation & continuity tests above 50 V
• Lead resistance compensation on continuity 
• Hands free continuity testing Auto power-down after 5 min 
• Complies with IEC 1010-1 safety standard installation Category III, 600 V phase to earth
• Conforms to EN61557-1