product range

Simple operation and ruggedness.
Check of open phase and phase sequence are possible in one unit.

Long selling models were renewed with the design and the measurement category!

・Two Functions in One Unit
    Presence of open phase can be checked by the lamps, and the phase
    sequence can be indicated by the rotating disk.

・ High Reliability
    measuring range for 3-phase installations from 110V to 600V.
    Sealed against dust ensures the trouble-free performance.

・ Battery-free tester

• True RMS can measure and indicate distorted waveforms
• 6040 counts with Bar Graph display
• MIN/MAX function enables to record min & max value
• REL(relative value) function to indicate the measurement variation

• Bargraph to display insulation resistance.
• Displays the value of external AC voltage along with flashing symbol.
• Auto null function to automatically subtract the test lead resistance before displaying the real continuity resistance value.
• Live circuit warning beeper.
• Releasing the test button automatically discharges the charges stored in the circuit under test.
• 200mA continuity measuring current to IEC 61557.
• Minimum 1mA current on insulation tests to IEC 61557.

• In addition to the facility for precision measurement, test leads for simplified two wire measuring system also supplied as standard accessories.
(unit can be hung from the neck for simplified measurement)
• The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth spikes.
• Dust and drip proof. (designed to IEC 60529 IP54)
• Earth resistance value can be read directly from the scale.
• Designed to meet IEC 61010-1 safety standard.
• Capable of measuring earth voltage.
• Small and lightweight. Shock resistant new case material.
• 2mA measuring current permits earth resistance tests without tripping earth leakage current breakers in the circuit under test.

• 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

High Accuracy, High Performance and Reliable Measurements
• 0.09% basic DC accuracy
• Large display with 6,000 counts
• True-RMS Measurements
• Low-pass filter for motor drive measurements
• User calibration function

Safety design for industrial use
• Complies with IEC 61010-1 CAT IV 600V , CAT III 1000V
• Terminal shutter to prevent incorrect test leads' insertion in current terminals
• Very wide operating temperature range from -10 to 55ºC

• Rugged design with a hard carrying case for field use
• Detachable High Voltage Line probe
• Automatic ranges, high and low scales, indicated by different LED's
• Drip proof

The Model 3131A offers unmatched performance, and feature including test lead resistance zero adjustment for time-saving continuous operation, a clear ease to read illuminated scale, and a live circuit warning.

• Test insulation up to 100MΩ at 250V, 200MΩ at 500V, 400MΩ at 1000V and continuity up to 20Ω.
• LIVE circuit warning lamp plus audible warning.
• Automatic discharge of circuit capacitance when TEST button is released.
• Fuse protected (continuity range only).
• Battery check LED.
• Front panel zero adjust.
• Back light function to facilitate working at dimly lit situations.
• PRESS TO TEST button with lock down feature.

• Elegant and easy-to-use cabinet
• Large display with 6000 counts and Backlight
• Enhanced current measuring function using an external clamp sensor
• Two detachable holders, flat and wing type
• Accurate reading with True RMS
• Safety Standard IEC 61010-1 CAT IV 300V / CAT III 600V