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Tenma 72-9400A User Manual

Tenma 72-9400A User Manual

Insulation resistance tester

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TM
Insulation Resistance Tester
User Manual
Part Number: 72-9400A
Newark.com/exclusive-brands
TM
Farnell.com/exclusive-brands
Element14.com/exclusive-brands
Page <1>
07/12/23
V1.0

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Summary of Contents for Tenma 72-9400A

  • Page 1 Insulation Resistance Tester User Manual Part Number: 72-9400A Newark.com/exclusive-brands Farnell.com/exclusive-brands Element14.com/exclusive-brands Page <1> 07/12/23 V1.0...
  • Page 2: Safety Information

    1. Overview The Insulation Resistance Tester is designed with brand-new design and combination of massive integrated and digital circuits; it can measure insulation resistance, AC voltage, etc. and enjoys high degree of accuracy, stable performance, easy operation and reliability. It is used for insulation resistance measurement for insulation materials and various kinds of electric equipment such as transformer, electric machines, cables, switches, electrical appliances, a ideal tool for electric equipment maintenance, testing and inspection.
  • Page 3: Technical Specification

    Safety Symbols 2 The instrument has double insulation or reinforced insulation. AC Voltage Ground Comply with European Union standards 3. Technical Specification Accuracy ±(a% reading+digits); calibration per year. Ambient Temperature (23±5)°C Environmental Humidity 45% to 75% Insulation Resistance Measurement Rated Voltage 100V 250V 500V...
  • Page 4: Voltage Measurement

    4. Tester’s Structure 1. EARTH: Insulation resistance input jack 2. G: Negative voltage input jack 3. V: Positive voltage input jack 4. LINE: Insulation resistance input jack ( high voltage output) 5. LCD screen 6. Backlight Button 7. Data-hold Button 8.
  • Page 5: Battery Replacement

    1. Turn the function knob to select one of test voltages 100V/250V/500V/1000V. (1) Before testing insulation resistance, the circuit under test must be completely discharged and completely isolated from power supply circuit. (2) Insert the red test wire into the “ LINE” input port and the black test wire into the “EARTH” input port. (3) Connect the red and black alligator clip to the circuit under test.
  • Page 6: Maintenance

    Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence. TENMA is the registered trademark of Premier Farnell Limited 2019.