INSTRUCTION MANUAL DIGITAL RCD(ELCB) TESTER KEW 5410 KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.
Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Safety Warnings…………………………….…………... Procedure of removing Cover………………………….… 2-1 Method of removing the Cover…………………….… 2-2 Method of storing the Cover……………………….…. Feature….………………………..…………………….….. Specification…………………………..…..…………….…. Instrument Layout……………………………………….… Measurement principle………………………………….... Preparation……………………………………………….... 7-1 Connection of Test Leads………………………….…. 7-2 Setting of Measurement Range………………….... 7-3 Setting of IΔn……………………………………….…..
1. Safety Warnings This instrument has been designed, manufactured and tested according to following standards, and delivered in the best condition after passing quality control tests. ● IEC61010-1 Measurement Category CAT.III 300V / CAT.ll 400V Pollution degree 2 ● IEC61010-031 ● IEC61557-1, 6 ● IEC60529 IP54 This instruction manual contains warnings and safety rules which have to be observed by the user to ensure safe operation of the instrument and to maintain it in safe condition.
DANGER ● This instrument is designed to measure the earth-to-line voltage 90 ~ 264V and the line-to-line voltage up to 440V (50/60Hz). Do not exceed the maximum allowable input of any measuring range. ● Do not attempt to make measurement in the presence of flammable gasses. Otherwise, the use of the instrument may cause sparking, which can lead to an explosion. ● Keep your fingers behind the safety barrier on the test leads. ● Set the Function Switch to any desirable Range before making a measurement.
2. Procedure of removing Cover KEW5410 has a dedicated Cover to protect against impacts from the outside and prevent the operation part, the LCD and the Connector Block from becoming dirty. The Cover can be detached and put on the backside of the main body during measurement. 2-1 Method of removing the Cover Slide and pull the Cover in the direction of an arrow. Fig.1 2-2 Method of storing the Cover Turn the Cover, slide and push it in the direction of arrow. Fig.
3. Feature This instrument is a digital RCD Tester to measure the trip time and trip out current of RCDs. It also equips the function to measure the voltage. ● Measurement of RCD trip time Conducting testing of rated residual non-operating currents at x 1/2 Range, measuring RCD trip time at x1 and x5 Ranges. ● Measurement of trip out current Measuring trip out current by varying current automatically. ● Remote Test Enabling a user to hold the Test Leads with his both hands by locking the Test Button.
4.
● Display ● Used location ● Operating temperature ● ● & humidity Storage temperature & humidity Withstand Voltage ● Insulation resistance ● Sleep Function ● Dimension ● Weight ● Power Source ● Possible number of Measurements ● Accessories : 1999counts (3 1/2digits), Large LCD : Altitude up to 2000m, indoor use : 0ºC ~ 40ºC, relative humidity 85% (no condensation) : -20ºC ~ 60ºC, relative humidity 85% (no condensation) : AC3700V / 1 min (between electrical circuit and enclosure) : 50MΩ or more / 1000V (
● Operating error Operating error (B) is an error obtained under the nominal operating conditions, and calculated with the intrinsic error (A), which is an error of the instrument used, and the error (En) due to variations. B = ± ( |A| + 1.
5. Instrument Layout 1 2 5 3 4 6 1. 2. 3. 4. 5. 6. LCD 0º / 180º Button (Polarity change) IΔn Button Test Button Backlight Button Function Switch Connector Block LCD Fig.
Test Lead 1. Test Lead M7128 RED 1 BLACK Long pin M8017 2. Test lead with alligator clip M7129 600V CAT. ＫＹＯＲＩＴＳＵ CE ＫＹＯＲＩＴＳＵ Fig.4 * Long pin for M7128 The Tip pin of M7128 can be replaced with the Long pin M8017. (1) Unscrew and remove ① shown in Fig.4 and remove the Tip pin. (2) Install the Long pin and tighten ①.
6. Measurement principle This instrument has a constant current circuit, and drives leakage currents (I) between LINE-NEUTRAL as illustrated in Fig.5 to activate RCDs, moreover, can output and measure leakage currents flowing to the earth as shown in Fig.6. ● Trip time measurement: Measure and display the time between the start of driving leakage currents (I) and trip of the RCD.
7. Preparation 7-1 Connection of Test Leads Connect the test lead properly. ● Connect the test lead M7128; red cord to the load of the Connector block and black cord to the power supply. ● When using the test lead with Alligator clip, connect the test lead M7128 (red) to the load of Connector block and M7129 to the power. 7-2 Setting of Measurement Range Turn the Function Switch and power on the instrument, then select any appropriate Ranges. Range construction: There are 4 Ranges on this instrument.
7-3 Setting of IΔn Balance the IΔn of the instrument and of the RCD by using the IΔn Button. ● Default value : 30mA ● Selectable values at x 5 Range are 15, 30, 50 and 100mA; 200 and 500mA are not available (Black arrow mark “▼” on the LCD indicates the selected value). In case that 200 or 500 mA is selected at any Ranges other than x 5 Range and set the Function Switch to x 5 Range, the value automatically restores to 30mA.
8. Measurements 8-1 Connection Connect the instrument according to Fig.7,8,9. DANGER This instrument is designed to measure the earth-to-line voltage 90 ~ 264V and the line-to-line voltage up to 440V (50/60Hz). Do not exceed the maximum allowable input of any measuring range. WARNING ● Power on the instrument before connecting to the measuring point. ● Prior to a measurement, confirm that the instrument isn’t in the Sleep mode.
8-3 RCD test Press the Test Button while voltage is displayed on the LCD, then RCD test starts. ● x1/2, x1, x5 Ranges Measured RCD trip time will be displayed on the LCD. When the RCD under test doesn’t trip, “OL ms” will be displayed instead. Test results must be matched with the operating times mentioned at clause 8.5. ● AUTO RAMP Range Measured trip out current will be displayed on the LCD. When the RCD under test doesn’t trip, “OL mA” will be displayed instead.
DANGER ● Voltage to earth of Earth electrodes or Protective conductors is automatically detected during RCD test – when applying test currents – at measurement using EARTH in order to prevent electrical shocks caused by the damaged earth. When the detected voltage at RCD test exceeding AC50V(AC100V “x5 range” only), “ Hi V” is displayed after pressing the Test Button and halt the measurements.
● Neutral - Line Connect the “PRIMARY” of the Connector Block to the Neutral of the power of RCD, and the “SECONDARY” of the Connector Block to the Line of the load of RCD. L1 400V 400V L2 400V 230V L3 230V 230V N POWER RED BLACK NEUTRAL LINE LOAD Fig.7 DANGER This instrument is designed to measure the earth-to-line voltage 90 ~ 264V and the line-to-line voltage up to 440V (50/60Hz). Do not exceed the maximum allowable input of any measuring range.
● Line - Line Connect the “PRIMARY” of the Connector Block to L2 of the power of RCD, and the “SECONDARY” of the Connector Block to L1 of the load of RCD. L1 400V 400V L2 400V 230V L3 230V 230V N POWER RED BLACK L2 L1 LOAD Fig.8 DANGER This instrument is designed to measure the earth-to-line voltage 90 ~ 264V and the line-to-line voltage up to 440V (50/60Hz). Do not exceed the maximum allowable input of any measuring range.
● Earth – Line Connect the “PRIMARY” of the Connector Block to Earth, and the “SECONDARY” of the Connector Block to Line of the load of RCD. Connection using Earth Test lead with alligator clip RCD(A) POWER NEUTRAL RED LINE Leakage current RCD(B) KEW 5410 EARTH LOAD Leakage currents may flow to RCD (A), which is installed in the power supply of the RCD (B) under test, when current flows to the EARTH; so RCD (A) may trip as well. Fig.9 Fig.
9. Battery Replacement 18 DANGER ● Do not open the Battery Cover if the instrument is wet. ● Never replace the batteries during measurements. Set the Function switch to the OFF position and disconnect the test leads from the instrument, when replacing batteries, in order to prevent electrical shocks. CAUTION ● Do not mix new and old batteries. ● Install batteries in the orientation as shown inside the battery compartment, observing correct polarity. 1. 2. 3. 4.
10. Strap Belt Assembly Correct assembly is shown in Fig.12. By hanging the instrument round the neck, both hand let free for testing. Fig.12 Pass the Strap belt down through the side panel of the main body from the top, and up through the slots of the Probe case from the bottom. Pass the Strap through the buckle, adjust the strap for length and secure.
MEMO
06-12 92-1900 Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations.
