Operating Instructions METRATESTER5 and 5-F Tester for DIN VDE 0701-1:2000 and 0702:1995 3-348-580-15 12/3.
METRATESTER5/5-F (8) (9) (10) (13) (11) (12) (7) (3a) (6) (5) (14) (15) (4) (2) (1) (3) (1) Mains plug (take-up spool at back of housing for mains cable) (2) Signal lamp PE for testing the mains protective conductor (3) Alligator clips for attachment to the test probe (3a) (3a) Test probe (4) Contacting surface for contact finger (5) Measuring function selector switch RSL Protective Conductor Resistance RISO Insulation Resistance IEA Equivalent Leakage Current IA Contact or Leakage Current (for c
METRATESTER5/5-F Display Mains Voltage Residual Current Secondary Current IDiff mA IDiff mA INetz A UNetz V INetz A Indication of Limit Values for DIN VDE 0702: 1995 RISO <0.5 MΩ <2.0 RSL >0.3 Ω >1.0 IEA >7.0 mA >15 IA >0.25 mA >0.5 Insulation Resistance PE Resistance Equivalent Leakage Current Leakage Current/ Contact Current Display text subject to change without notice. KS 13 Accessory Cable Set Contents Page 1 Safety Features and Precautions ...............................................
5 Testing Devices per DIN VDE 0701, Part 1: 2000 ........................................................12 5.1 5.2 5.3 5.4 5.5 5.6 5.6.1 5.6.2 General ......................................................................................................................................... 12 Visual Inspection ............................................................................................................................ 14 Measuring Protective Conductor Resistance ............................
1 Safety Features and Precautions The tester is manufactured and tested in accordance with the following standards: IEC/EN 61010-1/ VDE 0411-1 Safety regulations for electrical measuring, control, regulating and laboratory devices – general requirements and DIN VDE 0404-1:2002-05 Devices for the technical safety inspection of electrical equipment; Part 1: general requirements, and Part 2: periodic device testing When used for its intended purpose, the safety of the user, the test instrument and the device
2 Applications The tester is intended for the testing and measurement of repaired or modified electrical devices in accordance with DIN VDE 0701 or DIN VDE 702. These regulations require the measurement of protective conductor resistance, insulation resistance and equivalent leakage current for repaired or modified electrical devices, as well as testing for the absence of voltage at exposed, conductive parts for data processing systems and office machines.
(8) Test Socket The DUT is connected to the test socket for the measurement of protective conductor resistance, insulation resistance and equivalent leakage current in accordance with DIN VDE 0701 and DIN VDE 0702, if the DUT is equipped with a mains plug. (9) Connector Jack/Terminal for DUT Phase Conductors This terminal is wired in parallel to the two short-circuited phase conductor terminals at the test socket (8).
Residual Current Limit Value Violations The METRATESTER5/5-F is equipped with a selector switch independent, residual current monitoring function. If the red error lamp lights up and no message regarding a limit value violation appears at the display, residual current at the mains outlet is dangerously high – regardless of the selector switch setting. If this is the case, it is advisable to measure residual current (differential current) by turning the selector switch to the “IDIFF” position.
4.2 Testing Protective Conductor Potential ➭ Bring the contact finger into contact with the contacting surface (4) and, at the same time, with a grounded object (e.g. a water pipe). The PE signal lamp (2) must not light up! Potential between the mains plug protective conductor (1) and the contacting surface (4) is then ≤ 100 V. ☞ Note! The PE signal lamp (2) does not light up, if no mains voltage is present between L and N at the mains plug (1), or if L and PE are reversed at the mains connection.
4.4 Connecting the Device Under Test to the Test Instrument The DUT must be connected to the test socket (8), or to the jacks or terminals (9 and 10) which are connected in parallel to the test socket for the measurement of protective conductor resistance, insulation resistance and equivalent leakage current. Terminal (9) is connected to the short-circuited phase conductor jacks at the test socket (8), and terminal (10) is connected to the earthing contact at the test socket (8).
4.5 General Measuring Procedures Line voltage must lie within the allowable range of 207 to 253 V for all of the following measurements. This assures that the accuracy of displayed measured values corresponds with the values specified under “Technical Data” (chapter 11, page 27). Line voltage can be measured by setting the function selctor switch to the “UNetz 250 V” position (see chapter 4.3, page 9).
5 Testing Devices per DIN VDE 0701, Part 1: 2000 The limit values specified in the following chapters correspond to current revision levels of official standards at the time of going to print. Please note that normative legislation is continuously updated to meet the safety requirements necessitated by changing market situations, and that the listed limit values are thus subject to change. Please contact our update service department in order to adapt test instruments to new standards. 5.
• Insulation resistance for safety class I has been redefined to 1 MΩ, and to 0.3 MΩ for devices with heating elements. This test is required for all devices for which all charged insulation is monitored during testing (practically all devices without electrically actuated, all-pole relays). The limit values are: – Safety class I devices under test: 1 MΩ – Safety class I DUTs with heating elements: – Safety class II devices under test: 0.3 MΩ 2 MΩ – Safety class III devices under test: 0.
5.2 Visual Inspection Visual inspection is performed prior to measurements with the test instrument.
5.4 Measuring Insulation Resistance This measurement may only be performed if the device under test has successfully completed protective conductor resistance testing. This measurement may not be performed if all-pole electrically actuated switches are included in the device under test. ➭ Connect the device under test as described in chapter 4.4, page 10. Make sure that the jack (10) is connected to exposed conductive parts at the DUT for safety class II and III devices.
5.6.1 Measuring Contact Current Contact current measurement can be performed instead of insulation resistance measurement for class II devices, or for class I devices with exposed conductive parts which are not connected to the protective conductor. ➭ Connect the device under test to the mains outlet. ! U(f) U(f=10) Relative Quantity (dB): 20 log 5.6 Leakage Current Measurement Frequency response is taken into consideration in accordance with the graph to the right during leakage current measurement.
6 Testing Devices per DIN VDE 0702:1995 6.1 General The following periodic tests are required according to DIN VDE 0702: • Protective conductor resistance measurement • Insulation resistance measurement • Equivalent leakage current • Contact current measurement • Residual current measurement ☞ ☞ Note! If any doubts exist concerning the performance of an insulation resistance measurement, a differential current measurement can be performed in its place.
6.3 Measuring Insulation Resistance This measurement may only be performed if the device under test has successfully completed protective conductor resistance testing. This measurement may not be performed if all-pole electrically actuated switches are included in the device under test. ➭ Connect the device under test as described in chapter 4.4, page 10. Make sure that the jack (10) is connected to exposed conductive parts at the DUT for safety class II and III devices.
6.4 Measuring Equivalent Leakage Current According to DIN VDE 0702:1995, equivalent leakage current must be measured for safety class I devices: – for which interference suppression capacitors have been installed or replaced during the coarse of repair or modification. – which are equipped with heating elements and for which an insulation resistance of less than 0.5 MΩ has been measured (chapter 6.3, page 18). ➭ Connection of the DUT is the same as for insulation resistance measurement (see chapter 5.
7 Testing Data Processing Systems and Office Machines per DIN VDE 0701, Part 240 7.1 General The following safety relevant tests are required for data processing systems by this regulation: • Visual inspection • Protective conductor test • Testing for the absence of voltage at user accessible, exposed conductive parts 7.2 Visual Inspection Visual inspection is performed as described in chapter 5.2, page 14. 7.
A resistance value of up to 1 Ω measured between a suitable earthing contact and all exposed conductive parts which might become charged with voltage in the event of an error is allowable for permanently installed devices. To housing for measurement of protective conductor resistance RSL In the case of data processing systems or combinations of permanently installed individual devices, the network should be decoupled and individual measurements should be performed.
7.4 Testing for the Absence of Voltage at User Accessible, Exposed Conductive Parts According to DIN VDE 0701, part 240, all exposed conductive parts must be tested for the absence of voltage after maintenance, repair or modification of data processing equipment and office machines.
8 Measuring Load Current from the Mains Outlet To the mains outlet INetz ! ➭ ➭ ➭ ➭ Attention! The device under test may not be connected to the mains outlet (7) until is has passed safety testing in accordance with DIN VDE 0701, part 1! Connect the earthing contact plug from the device under test to the mains outlet (7). Set the function selctor switch to the “INetz 16 A” position. Switch the device under test on. Read the measured value in “A” from the LCD (11).
METRATESTER5 Infrared Interface 9 “IRDA” Message Type Format Content Transmission Speed infrared interface (in compliance with IRDA per HP Design Guide) 9600 baud, 1 start bit, 8 data bits, 1 stop bit, no parity, no xon/xoff, no handshake device ID, measured value, measuring range, alarm messages: error per SK I and SK II 2.
10 METRATESTER5-F Radio Interface 10.1 Applications The radio interface at the METRATESTER5-F test instrument allows for the wireless transmission of measurement results to a PC. The test instrument’s transmitter sends measurement data to a receiver which has been linked to a PC via the RS232 interface. This provides for various advantages: • If the test instrument is used to perform measurements in an aggressive environment, the PC and a printer can be operated at a more appropriate location.
Transmission Speed Frame Format Frame Content Receiver Power Supply Supply Voltage Dimensions Weight Connector Cable ! 2400 baud, each frame is transmitted 3 times 1 start bit, 8 data bits, 1 stop bit, no parity, no xon/xoff, no handshake Device ID, measured value, measuring range, measurement type 9 V monobloc battery in accordance with IEC 6LR61 (alkaline-manganese). Internal battery is disconnected if power is supplied from the PC. 7 … 12 V W x H x D: 65 x 100 x 24 mm 150 gr. with battery approx.
11 Technical Data Meas. Quantity Measuring Range Resolution UNO-LOAD Ri PE Resistance 0 ... 19.99 Ω 10 mΩ < 20 V − — > 200 mA Insulation Resistance 0 ... 19.99 MΩ 10 kΩ 600 V − ca. 100 kΩ < 10 mA > 1 mA Equivalent Leak. Current 0 ... 19.99 mA ∼ 10 µA 28 V ∼ 2 kΩ — 0 … 1.999 mA ∼ Confirmation of absence of voltage with current measurement (contact or leakage current) Residual Current 0.01 … 19.99 mA ~ 1 µA IK < 20 mA IN 2 kΩ 10 µA Operational Measurements Meas.
Influence Variables and Errors Influence Variable/ Sphere of Influence Designation Influence Errors per ± ... % of measured value DIN VDE 0404 Change in position E1 — Change in supply voltage to the test device E2 2.5 Temperature fluctuation Indicated influence errors per 10 K temperature change: 0 … 21 °C and 25 … 40 °C E3 Current at device under test E4 2.5 Low frequency magnetic fields E5 2.5 DUT impedance E6 2.5 Capacitance during insulation measurement E7 1 with PE resistance 0.
Electrical Safety Protection Class Nom. Mains Voltage Test Voltage II 230 V Mains + PE (mains) + 2 mA socket for testing for the absence of voltage at test socket, connector jacks for phase and protective conductors and gripper clip: 3 kV∼ mains to PE (mains) + 2 mA socket: 1.
13 Repair and Replacement Parts Service DKD Calibration Lab* and Rental Instrument Service If required please contact: GOSSEN METRAWATT GMBH Service-Center Thomas-Mann-Strasse 20 90471 Nürnberg, Germany Phone +49-(0)-911-8602-0 Fax +49-(0)-911-8602-253 E-Mail service@gossenmetrawatt.com This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
14 Product Support If required please contact: GOSSEN METRAWATT GMBH Product Support Hotline Phone +49-(0)-911-8602-112 Fax +49-(0)-911-8602-709 E-Mail support@gossenmetrawatt.
Edited in Germany • Subject to change without notice • A pdf version can be found on the internet GOSSEN METRAWATT GMBH Thomas-Mann-Str. 16-20 90471 Nürnberg • Germany Telefon+49-(0)-911-8602-0 Telefax +49-(0)-911-8602-669 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.
