Anti-Trip Technology for complete trip free Loop testing on all RCDs rated 30mA and above. • Dual Display allows simultaneous measurements like Loop & PFC/PSC. • Two wire connection for Loop L-L, L-N and PSC testing is possible. • Phase rotation, Voltage and Frequency measurements. • Lock-down test button for 'hands free' testing with auto-start operation.
Custom microprocessor controlled for highest accuracy and reliability. • 3 LEDs for checking correct wiring status. • 15mA LOOP measurement:LOOP impedance 2000Ω range measurement is carried out with low test current (15mA).The current will not cause tripping out involved RCD even the one with the lowest nominal differential current (30mA). • Direct reading of Prospective Short Circuit Current (PSC). • Safe voltage measurement function. • Large custom digital display readout on all models. • Measure low loop resistances(resolution of 0.01Ω) • Automatic lock-out if test resister overheats. • Large custom digital display readout . • Visual indication of reversed phase and neutral wiring at socket. • Designed to IP54 Rating • Complies with IEC 61557
Measurement of RCD trip timeConducting testing of rated residual non-operating currents at × 1/2 Range, measuring RCD trip time at × 1 and × 5 Ranges. • Measurement of trip out currentMeasuring trip out current by varying current automatically. • Remote TestEnabling a user to hold the Test Leads with his both hands by locking the Test Button. Measurement will automatically start when the main voltage is detected. • Voltage MeasurementCarrying out a constant measurement of voltage in the stand-by mode at each Range.
Custom microprocessor controlled for highest accuracy and reliability. • 3 LEDs for checking correct wiring status. • 0 and 180 degree phase angle switch permits quick tests and consistent readings. • Digital read-out of tripping time. • Constant current source circuitry ensures that a fluctuating mains voltage does not affect the accuracy of readings. • Large custom digital display readout. • Visual indication of reversed phase and neutral wiring at socket. • Designed to IP54 Rating. • Complies with IEC 61557
Accurate digital readout of tripping time. • Two neon lamps give quick check for correct wiring. • Compact, lightweight and simple to operate. • Zero cross circuitry permits testing at 0 and 180 degree portion of sine wave. At these two tests minimum (best) and maximum (worst) trip times will be displayed.
Continuity Measurement Continuous testing can be carried out by use of the test button lockdown feature. A selectable buzzer gives instantaneous indication of continuity. Null facility eliminates the test lead resistance from the results, the nulled value is retained even if the instrument is switched off. Live circuit warnings are given by a flashing LED, buzzer and indication on the display. Insulation Measurement Three selectable test voltages 250V, 500V and 1000V. An auto-discharge function ensures that circuits are not hazardous after testing. A red LED gives warning of high voltage output during testing and discharging of the circuit. In case of connecting to a live circuit, a live circuit warning is given by flashing LED, buzzer and indication on the display. Loop Impedance Measurement A patented (ATT) low current loop impedance test enables high accuracy loop measurements and quick testing without tripping RCD's. A high current alternative is selectable for even higher accuracy and instantaneous results. The subsequent test will default to the low current test, this saves any inadvertent tripping of the RCD. The KEW...
Continuity:20/200Ω200mA Test Current • Insulation:500/1000V, 20/200MΩ1mA Rated Test Current • Loop Impedance:20/2000Ω15mA Test Current at 2000Ω (No RCD Trip) • RCD:10/30/100/300/500mAx1/2, x1, Fast Trip(40ms), DC, Auto Ramp • Test of a large kind of RCD's:Standard, Selective, AC and A(DC sensitive breakers) • Uc(Contact Voltage): 100V • Designed to IEC 61010-1, IEC 61557 • Data Memory:300 measured results • The stored data can be transferred to PC via Optical Adaptor Model 8212-USB or 8212-RS232C.
Continuity and Insulation Testing • Live circuit warning LED:Immediate illumination of a warning lamp if the circuit under test is live • Auto Discharge:Allows fast and safe discharge of electrical energy stored in capacitive circuits following testing • Integral overload protection on internal continuity and insulation test circuitry • Autoranging • 500V DC test voltage for insulation tests • 200mA short circuit current on continuity ranges