GT- 400-UK Appliance tester for testing protective measures in accordance with EN 61010 Safty Standard Users Manual (Version 1.00.
Operating manual for the GT-400 appliance tester Table of contents 1. 2. 3. 4. 5. 6. 6.1. 6.2. Page Safety information Introduction Safety instructions Appropriate usage Operating elements Starting up Initial equipping or battery replacement Switching the tester on and off Selecting the measuring sequences, options 7. Explanation of terminology 7.1. Protection class I (PC I) 7.2. Protection class II (PC II) 7.3. Protection class III (PC III) 7.4. Protective conductor resistance (RPE) 7.5.
Operating manual for the GT-400 appliance tester 1. Safety information Tests on the electrical safety of electrical appliances may only be carried out by qualified electricians or under their supervision. Carefully read through the following safety information before starting up the GT-400 appliance tester. Symbols used in the operating manual and on the appliance tester: Warning of a hazardous situation. Follow the operating manual. Caution! Dangerous voltage, danger of electric shock.
Operating manual for the GT-400 appliance tester 2. Introduction You have acquired a high-grade device from the company BEHE-AMPROBE with which you can carry out repeatable measurements over a very long period of time. The product was calibrated during the manufacturing process in accordance with the specified operating procedures.
Operating manual for the GT-400 appliance tester 3. Safety instructions The appliance tester was constructed and tested in accordance with the applicable safety regulations and left the factory in a faultless safety condition. In order to maintain this condition and ensure safe operation, the user must observe the instructions and warnings contained in this operating manual.
Operating manual for the GT-400 appliance tester 4. Appropriate usage The tester may only be used under the conditions and for the purposes for which it has been designed. It is particularly important to observe the safety instructions and the technical data regarding ambient conditions and usage in a dry environment. The appliance tester may not be used for measuring in electrical systems.
Operating manual for the GT-400 appliance tester 5. Operating elements Explanation of the appliance tester’s connections, operating elements and displays.
Operating manual for the GT-400 appliance tester 6. Starting up 6.1. Initial equipping or battery replacement The tester is operated using 6 x 1.5 V type AA batteries (IEC LR6) or six type AA rechargeable batteries. The six batteries supplied must be inserted into the tester before starting the device.
Operating manual for the GT-400 appliance tester „OFF“ switch position: Turning the rotary switch to the „OFF“ position switches off the device. Turn the rotary switch to the „ON“ position to switch on the tester. The device performs a self-test.
Operating manual for the GT-400 appliance tester RPE selection Since the limit value for the protective conductor resistance measurement depends on the length of the protective conductor of the test object among other factors, the menu allows the limit value to be set according to the length (see also Section 8.2.
Operating manual for the GT-400 appliance tester Test line compensation In order to achieve correct results when measuring the protective conductor, the resistance of the test line must be compensated. When the device is supplied, the test line delivered is compensated. After selecting the „Compensation“ menu item, connect the test line to the protective earth contact of the test socket. The information appears on the display. After the connection has been made, compensation is started.
Operating manual for the GT-400 appliance tester During the compensation procedure, a test is conducted to verify whether the test line is connected to the protective earth contact of the test socket, and the resistance of the test line does not exceed 2 Ohm.
Operating manual for the GT-400 appliance tester Operating mode selection After the switch-on message has been displayed, the desired operating mode PC I, PC II or cable test can be selected. The „Measuring sequence“ window is displayed depending on the setting of the rotary switch. Briefly pressing the „START“ button starts the selected measuring sequence. Help function Pressing the „START“ button for a longer time (> 2 s) calls up a quick guide for the select measurement type.
Operating manual for the GT-400 appliance tester 7. Explanation of terminology 7.1. Protection class I (PC I) The active parts of the device are protected against direct touching by the basic insulation. Through connection of the touchable conductive housing parts to the protective conductor, these are included in the protective measure in the case of direct touching (fault protection) with the system. The device has a protective conductor connection (earthed plug). 7.2.
Operating manual for the GT-400 appliance tester 7.6. Substitute leakage current (IEA) Current that would flow through the interconnected active conductors of the device (test object) and the protective conductor or the touchable conductive parts at rated voltage and rated frequency of the device. This measuring method determines the leakage current without mains voltage. It is an alternative measuring method for determining protective conductor current or touch current.
Operating manual for the GT-400 appliance tester 8. Conducting tests in accordance with DIN VDE 0701-0702 Definition of standards The sequence of tests is specified in the standard. 8.1. Visual inspection The test objects are inspected for externally visible defects. 8.2. Measuring the protective conductor resistance (for devices of protection class I) The limit value is: ≤ 0.2 Ω for devices with connecting cables up to 5 m, plus 0.1 Ω for every extra 7.5 m, up to a maximum of 1.0 Ω .
Operating manual for the GT-400 appliance tester Measuring principle circuit Insulation resistance PC I PC II Appliance tester ´Probe´ socket ´Probe´ socket Test socket Test socket Test line Test line Test object 8.4. Measuring the substitute leakage current for devices of protection class I The substitute leakage current procedure is an alternative method for measuring the protective conductor current. The limit value is 3.5 mA.
Operating manual for the GT-400 appliance tester 8.5. Measuring the substitute leakage current for devices of protection class II The substitute leakage current procedure is an alternative method for measuring the touch current. The limit value is 0.25 mA. Measuring principle circuits Substitute leakage current procedure PC II Appliance tester ´Probe´ socket Test socket Test line Test object 8.6.
Operating manual for the GT-400 appliance tester 9. Test procedures 9.1. Testing devices of protection class I Rotary switch position: Test object connection: The test procedure occurs automatically in the sequence specified below: - Protective conductor resistance - Insulation resistance - Substitute leakage current C Please note: The test object must be switched on. The test sequence is started by pressing the „START“ button for < 2 s. 9.1.1.
Operating manual for the GT-400 appliance tester The measurement can be aborted by pressing the „START“ button. The compensation must be repeated (section 6.2. „Test line compensation“ p.
Operating manual for the GT-400 appliance tester At the start of measuring, the tester checks to see if the measuring current is greater than 200 mA. If this is not the case, the test is aborted. This can occur for the following reasons: - The test object is not of protection class I - The test object is not connected to the tester or the test line is not connected - The protective conductor has an open-circuit This is indicated by a scrolling message in the status line.
Operating manual for the GT-400 appliance tester When performing the protective conductor resistance measurement, the automatic test sequence can also be switched to a permanent measurement (max. 3 min). When the tester is in the normal measuring mode, pressing the „START“ button switches the tester into the permanent measurement mode. The bar graph is then no longer shown in the display. Pressing the button again continues the measurement with a reversed test current polarity.
Operating manual for the GT-400 appliance tester 9.1.3. Measuring the substitute leakage current The substitute leakage current is measured automatically. Switching to permanent measurement is not possible. Exceeding of the limit value is indicated as follows: - The momentary measurement value blinks - An audio signal is emitted 9.1.4. Test assessment When the automatic test sequence finishes, an assessment window is displayed. The measurements and their assessments („X“ or „P“) are displayed here.
Operating manual for the GT-400 appliance tester 9.2.
Operating manual for the GT-400 appliance tester When the „START“ button is pressed for 2 seconds, the following selection menu appears in the display: When the selection of „SKII with PE“ is confirmed („START“ button > 2s), the device is configured to the above measurement. The „Help function“ is accessed when it is confirmed. Please note that after the measurement has ended, the device switches back into the normal measuring sequence for SKII devices without protective conductor connection. 9.2.1.
Operating manual for the GT-400 appliance tester 9.2.3. Test assessment The measurements and their assessments („X“ or „P“) are displayed here. The status bar displays „Test PASS“ or „Test FAIL“ depending on the result. Briefly pressing the „START“ button will repeat the test or perform a new test if a new test object has been connected. Pressing the „START“ button for longer than 2 s will display the quick guide. 9.3.
Operating manual for the GT-400 appliance tester 9.3.1. Protective conductor resistance The same statements apply as in point 9.1.1. 9.3.2. Insulation resistance The same statements apply as in point 9.1.2. 9.3.3. Cable test This test provides an additional function that is not part of the DIN VDE 0701-0702 standard. This test checks a connection cable or extension cable for opencircuits in the live (L) and neutral (N) conductors and for shortcircuits between L and N.
Operating manual for the GT-400 appliance tester C only by version: - Great Britain - Switzerland; - Czech - France - Poland L & N swapped Briefly pressing the „START“ button will repeat the test or perform a new test if a new test object has been connected. Pressing the „START“ button for longer than 2 s will display the quick guide.
Operating manual for the GT-400 appliance tester 10. Checking the battery voltage Before each measurement, the tester automatically checks that the charge level of the batteries is sufficient for correct execution of the respective measurement. If this is not the case, the following information is displayed: In this case the tester must be switched off and the batteries replaced as described in point 6.1. 11.
Operating manual for the GT-400 appliance tester General technical data: Power supply: Degree of pollution: Overvoltage category: Protection degree: Protection class: 6 x 1.5 V batteries Typ IEC LR6 (AA) 6 x 1.2 V NiMH rechargeable batteries 2 CAT II 300 V IP40 II Electrical safety: EN61010-1/VDE0411 EMC emission: EMC interference resistance: EN61000-6-3 EN61326-1 Dimensions (L x W x H): Weight: Approx. 265 x 110 x 50 mm Approx.
Operating manual for the GT-400 appliance tester 14. Limited Warranty and Limitation of Liability Your Amprobe product will be free from defects in material and workmanship for one year from the date of purchase unless local laws require otherwise. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on the behalf of Amprobe.
Operating manual for the GT-400 appliance tester Non-warranty Repairs and Replacement – United States and Canada Non-warranty repairs in the United States and Canada should be sent to an Amprobe Service Center. Call Amprobe or inquire at your point of purchase for current repair and replacement rates.
Robin-Amprobe® Test Tools UK 52 Hurricane Way, Norwich Norfolk, NR6 6JB, UK info@robin-amprobe.co.uk Phone: +44 (0) 1603 25 6662 Fax: +44 (0) 1603 25 6664 Please recycle Order no: 2786688250 08.2013 Visit www.Robin-Amprobe.co.
