GSC53N - GSC57 - ZG47 INDEX 1. SAFETY PRECAUTIONS AND PROCEDURES ..................4 1.1. GENERAL ................................4 1.2. Preliminary Instruction ............................. 4 1.3. During Use ................................5 1.4. After Use .................................. 5 2. GENERAL DESCRIPTION ........................... 6 2.1. Introduction ................................6 2.2.
Page 4
GSC53N - GSC57 - ZG47 6.5. EARTH: Soil Resistance and Resistivity Measurements ..................55 6.5.1. Measurement procedure and results of "2-W"and "3-W" mode ..................56 6.5.2. Measurement procedure and results of " " mode ......................58 6.5.3. "2-W", "3-W" and " " faulty cases ............................59 6.6.
Page 5
GSC53N - GSC57 - ZG47 11.2. ANALYSER MEMORY ............................114 12. CONNECTING THE INSTRUMENT TO A PC ...................115 13. CONNECTION THROUGH BLUETOOTH PROTOCOL................115 14. MAINTENANCE............................116 14.1. General Instruction ............................... 116 14.2. Battery Replacement ............................116 14.3. Instrument Cleaning ............................. 116 14.4.
(building yards, swimming pools, etc.) and 50V in ordinary places because of the risk of electric shock. Use only cables and accessories approved by HT ITALIA. The following symbols are used in this manual: Caution: refer to the instructions reported on this manual; improper use may damage the apparatus or its components.
GSC53N - GSC57 - ZG47 Please keep to the usual safety standards aimed at: Protecting against dangerous currents; Protecting the instrument against incorrect operations. Only the accessories supplied with the instrument guarantee compliance with the safety standards. Accordingly, they must be in good conditions and, if necessary, they must be replaced with identical models.
The instrument was designed to grant the user the utmost safety conditions thanks to a new concept assuring double insulation and over voltage category III. This instruction manual is referred to three models: GSC57, GSC53N and ZG47. Differences among models are: LOW 10A function performed by GSC57 model only.
Page 9
GSC53N - GSC57 - ZG47 record simultaneously (pressing the START key after a proper setting): RMS values of voltages, currents, corresponding harmonics, active, reactive and apparent powers, power factors and cos , active, reactive and apparent energies, voltage anomalies (voltage sag and surge) with 10ms resolution.
GSC53N - GSC57 - ZG47 3. PREPARATION FOR USE 3.1. INITIAL CONTROL This instrument has been checked mechanically and electrically prior to shipment. Any care has been taken to ensure that the instrument reaches you under safe conditions. You are recommended, however, to carry our a rapid check to detect any possible damage which might have been caused during transport.
GSC53N - GSC57 - ZG47 WARNING For recordings (ANALYSIS and AUX function) use ALWAYS the external power supply adapter (code A0050, optional for GSC57) even the instrument allows the operator to perform a recording using internal batteries. If during a recording the external power supply adapter is de-...
GSC53N - GSC57 - ZG47 4. INSTRUMENT DESCRIPTION LEGEND: Display Function Keys Rotary switch START STOP HOLD SAVE ENTER MENU Front panel of the Instrument Multifunction Keys. ON/OFF and backlight key. Press it for few seconds to switch OFF the ON / OFF instrument, press it briefly to activate the backlight function.
GSC53N - GSC57 - ZG47 4.1. DISPLAY DESCRIPTION The display is a graphic module with a resolution of128 x 128 pixels The first line of the display shows date and time. If not correct, you can set the exact ones according to the procedure described at paragraph 5.2.
GSC53N - GSC57 - ZG47 5. INITIAL SETTINGS By pressing the MENU key the following screen will be displayed: MENU GENERAL S A F E T Y T E S T M E M O R Y A N A L Y S E R M E M O R Y...
GSC53N - GSC57 - ZG47 5.4. RESET This option re-establishes the initial settings of the instrument in ANALYSER function. The RESET command re-establishes the limit value on Insulation measurement (see paragraph 6.2) at 0.5M and test voltage at 500V. The “not modified” parameter it is not modified by RESET command The initial settings of the instrument consist of: ...
GSC53N - GSC57 - ZG47 6. SAFETY TEST FUNCTIONS 6.1. LOW : CONTINUITY TEST WITH 200mA TEST CURRENT WARNING Before carrying out the continuity test make sure that there is no voltage at the ends of the conductor under test.
GSC53N - GSC57 - ZG47 6.1.1. Calibrating the test leads ("CAL" Mode) 1. Connect the black and blue test leads to B1 and B4 input terminals respectively. Connection of instrument terminals during calibration procedure. 2. If the test leads supplied with the instrument are not long enough for the measurement you can extend the blue cable.
GSC53N - GSC57 - ZG47 TEST LEADS Before each measurement always make sure that the calibration is referred to the cables in use. During a continuity test, if the resistance value free of calibration (that is the resistance value less the calibration offset value) is negative, the symbols ...
GSC53N - GSC57 - ZG47 6.1.2. Measurement Procedure 1. Select the desired mode by means of the F1 key. 2. Connect the black and blue test leads to B1 and B4 input terminals respectively Connection of the test leads during LOW test.
GSC53N - GSC57 - ZG47 6.1.3. Results of "AUTO" mode At the end of the test, if Average resistance value 05.06.01 (Ravg) the average resistance value Ravg is lower 1.05 than 5 the instrument emits a double sound signal...
GSC53N - GSC57 - ZG47 6.1.5. "AUTO", RT+", "RT-" faulty cases If the instrument detect 05.06.01 External Power supply adapter -.- - connected to instrument Disconnect the External Power Supply Adapter will show the message displayed to side. ---mA ---mA ...
Page 22
GSC53N - GSC57 - ZG47 If value Resistance value higher 05.06.01 than 5 Resistance is higher than 5 (but lower than 5.17 99.9 ) the instrument emits a long sound signal and displays one Test current 5.17 5.17...
GSC53N - GSC57 - ZG47 6.2. INSULATION RESISTANCE MEASUREMENT WITH 50V, 100V, 250V, 500V, 1000V TEST VOLTAGE WARNING Before effecting the insulation test make sure that the circuit under test is not energised and all the loads are disconnected. Turn the switch on M position.
Page 24
GSC53N - GSC57 - ZG47 Standard Brief description Test voltage Maximum limit value EN60439 Electrical panel boards 230/400V 500VDC > 230k EN60204 Electrical equipment of machines 500VDC > 1M Table1: Table reporting the test voltage and the corresponding limit values for few Guidelines.
GSC53N - GSC57 - ZG47 6.2.2. Results of "MAN" mode At the end of the test if 05.06.02 Insulation Resistance the Insulation resistance is lower than R (see Voltage during the Test 1.07 Table2), upper to set limit value...
GSC53N - GSC57 - ZG47 6.2.3. Results of "TMR" mode At the end of the test if 05.06.02 Insulation Resistance the Insulation resistance is lower than R (see Voltage during the Test 1.07 Table2), upper to set limit value...
GSC53N - GSC57 - ZG47 6.2.4. "MAN" and "TIMER" mode faulty cases If the instrument detect 05.06.01 External Power -.- - supply adapter connected Disconnect External instrument will show Power Supply Adapter the message displayed ---V to side. REMOVE POWER 500V LIM:0.50M...
GSC53N - GSC57 - ZG47 6.3. RCD: TEST ON "A" AND "AC" RCDS TYPE WARNING The automatic check of the RCD features causes the tripping of the RCD itself. Therefore check that all devices connected downstream the RCD under test are not damaged by power off. Possibly disconnect all the loads connected downstream the RCD as they could add additional leakage currents to the instrument ones and so making the test results void.
Page 29
GSC53N - GSC57 - ZG47 The F2 key permits to select one of the following rated tripping currents of the RCD (which can be shown cyclically when pressing the key): 10mA. 30mA. 100mA. 300mA. 500mA.
GSC53N - GSC57 - ZG47 6.3.1. Tripping times for the general and selective RCDs Table of tripping times for I x1, I x2, I x5 and AUTO tests. If the parameters set on the instrument comply with the type of RCD under test (and...
GSC53N - GSC57 - ZG47 6.3.2. Measurement procedure 1. Select the desired test parameter by means of the F1, F2, F3, F4 key. 2. Connect the Black, Green and Blue connectors of the three-terminal shuko cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4...
GSC53N - GSC57 - ZG47 6.3.2.1. Results of "x½" mode START 4. Press the START key once to execute a test with 0° Current waveform. STOP Press the START key twice to execute a test with 180° Current waveform. WARNING Never disconnect the test leads from the circuit under test when the message "...
GSC53N - GSC57 - ZG47 6.3.2.2. Results of "x1, x2, x5" mode START 4. Press the START key once to execute a test with 0° Current waveform. STOP Press the START key twice to execute a test with 180° Current waveform.
GSC53N - GSC57 - ZG47 6.3.2.3. Results of "AUTO" mode START 4. Press the START key once to execute the test. The instrument carries out the STOP following six tests with different values of rated current: 1/2I with 0° current waveform (the RCD shall not trip).
GSC53N - GSC57 - ZG47 6.3.2.4. Results of "RAMP " mode START 4. Press the START key once to execute a test with 0° Current waveform. STOP Press the START key twice to execute a test with 180° Current waveform.
GSC53N - GSC57 - ZG47 6.3.2.5. Results of " R " mode START 4. Press the START key once: the instrument carries out the test. STOP WARNING Never disconnect the test leads from the circuit under test when the message " MEASURING " is displayed.
GSC53N - GSC57 - ZG47 6.3.3. RCD Faulty cases 6.3.3.1. Connection troubles If the instrument detect 05.06.01 External Power supply adapter - - - connected to instrument will show the message Disconnect the External FRQ=50.0Hz Ut= ---V displayed to side.
Page 38
GSC53N - GSC57 - ZG47 This screen is displayed 05.06.01 when phase conductor been - - - exchanged with Protection Conductors. The instrument does not FRQ=50.0Hz Ut= ---V VP-N= VP-PE= 230V effect the test. Reverse CHANGE P-PE phase...
GSC53N - GSC57 - ZG47 If the instrument gets 05.06.01 overheated, tests cannot be carried out and the - - - message alongside is displayed. Wait until the initial screen is back in FRQ=50.0Hz ---V VP-N=231V VP-PE= 230V order to proceed with ...
Page 40
GSC53N - GSC57 - ZG47 In the tests MAN x1, x2, 05.06.01 x5 and AUTO (during x1 and x5 tests), if the RCD RCD tripping time. trips to separate the circuit within a time not complying with the limits FRQ=50.0Hz...
Page 41
GSC53N - GSC57 - ZG47 During the ramp test if Maximum current generated by 05.06.01 the instrument during the test for the RCD tripping current general RCDs (the value > 42 is higher than I (Type indicated is referred to an AC AC) or 1.4 I...
" MEASURING " is displayed. 6.4.1. High resolution Impedance measurement (0.1m ) The GSC53N, GSC57 and ZG47 models can be connected to an external optional accessory (IMP57) capable of measuring high resolution impedance close to a power transformer. The high Resolution impedance measurement is available inside the LOOP P-P, P-N, P-PE modes by mean Un/IΔn key.
GSC53N - GSC57 - ZG47 6.4.2. Measurement procedure and results of "P-N" mode 1. Select P-N mode by means of the F1 key. 2. Connect the Black, Green and Blue connectors of the three-terminal shuko cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4...
Page 44
GSC53N - GSC57 - ZG47 Formula for calculation of prospective short circuit current: where U = Nominal phase to neutral voltage = 127 if V meas 230 if 150V< V meas This result can be stored pressing the SAVE key twice (according to paragraph 9.1).
GSC53N - GSC57 - ZG47 6.4.3. Measurement procedure and results of "P-P" mode 1. Select P-P mode by means of the F1 key. 2. Connect the Black, Green and Blue connectors of the three-terminal shuko cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4 Instrument connection for P-P test in a 400V three-phase system 3.
Page 46
GSC53N - GSC57 - ZG47 WARNING Never disconnect the test leads from the circuit under test when the message " MEASURING " is displayed. Formula for calculation of prospective short circuit current: where U = phase to phase voltage 127 if V meas 230 if 150V<...
GSC53N - GSC57 - ZG47 6.4.4. Measurement procedure and results of "P-PE" mode 1. Select P-PE mode by means of the F1 key. 2. Connect the Black, Green and Blue connectors of the three-terminal shuko cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4.
Page 48
GSC53N - GSC57 - ZG47 At the end of the test the instrument emits a LOOP 05.06.01 double sound signal Value of phase to Earth Resistance expressed in indicating that the test 1.07 correctly terminated Value of the phase to Earth...
GSC53N - GSC57 - ZG47 6.4.5. Measurement procedure and results of " R " mode 1. Select R mode by means of the F1 key. 2. Connect the Black, Green and Blue connectors of the three-terminal shuko cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4.
Page 50
GSC53N - GSC57 - ZG47 At the end of the test the instrument emits a LOOP 05.06.01 double sound signal Value of phase to Earth Resistance expressed in indicating that the test correctly terminated Effective value of the phase...
GSC53N - GSC57 - ZG47 6.4.6. Measurement procedure and results of " " mode 1. Select mode by means of the F1 key. 2. Connect the Black, Red and Green connectors of the split cables to the corresponding input terminals of the instrument B1, B2, B3.
GSC53N - GSC57 - ZG47 6.4.7. LOOP Faulty Cases If the instrument detect LOOP 05.06.01 External Power - - - supply adapter connected to instrument ---A Disconnect the External Power Supply Adapter will show the message displayed to side.
Page 53
GSC53N - GSC57 - ZG47 This screen is displayed LOOP 05.06.01 when phase - - - conductor been exchanged with ---A neutral one. The instrument does not FRQ=50.0HZ effect the test. Reverse VP-N=231V VP-PE= shuko plug Phase Neutral CHANGE P-N...
Page 54
GSC53N - GSC57 - ZG47 If a contact voltage U LOOP 05.06.01 higher than - - - selected limit (U ) is detected the instrument ---A interrupts the test and emits a long sound FRQ=50.0HZ signal at the end of the Message “Ut”:...
Page 55
GSC53N - GSC57 - ZG47 Using the " " mode, if LOOP 05.06.01 Phase Phase - - - voltage is lower than 100V, instrument displays screen FRQ =50.0HZ VR-S=391V indicated on side. VS-T= VT-R= LOW VOLTAGE T Phase "T2 Voltage is lower PHASE ROTATION ...
Page 56
GSC53N - GSC57 - ZG47 In the mode P-P, P-N Message ">199.9" means LOOP 05.06.01 that Resistance mode instrument measured is higher than >199.9 carries out the test and the maximum measurable detects a resistance to ---A higher than 199.9 , the...
GSC53N - GSC57 - ZG47 6.5. EARTH: SOIL RESISTANCE AND RESISTIVITY MEASUREMENTS Turn the switch on EARTH position. The F1 key permits to select one of the following measuring modes (which can be shown cyclically when pressing the key): Mode "2-W" (the instrument measures the resistance between 2 points).
GSC53N - GSC57 - ZG47 6.5.1. Measurement procedure and results of "2-W"and "3-W" mode 1. Select "2-W" or "3-W" Earth measurement mode by means of the F1 key. 2. Connect the Black, Red, Green and Blue cables to the corresponding input terminals of the instrument B1, B2, B3, B4 (see possible connections in the following pictures).
Page 59
GSC53N - GSC57 - ZG47 At the end of the test the instrument emits a EARTH 05.06.01 double sound signal Earth Resistance value expressed in indicating that 0.77 test correctly terminated Voltage value of electrical Vd= 1V displays values noise alongside.
GSC53N - GSC57 - ZG47 6.5.2. Measurement procedure and results of " " mode 1. Select measurement mode by means of the F1 key. 2. Select the distance d between the earth rods by means the F3 and F4 keys.
GSC53N - GSC57 - ZG47 6.5.3. "2-W", "3-W" and " " faulty cases If the instrument detect EARTH 05.06.01 External Power - - - supply adapter connected to instrument Disconnect the External Vd= ---V Power Supply Adapter will show the message displayed to side.
Page 62
GSC53N - GSC57 - ZG47 The message "Rp high" indicates that the instrument can't EARTH 05.06.01 measure correctly the - - - Voltage from Auxiliary Earth rod. Check that Vd= 1V terminals correctly connected and Test:04 the Auxiliary earth rod RAVG=0.74...
Page 63
GSC53N - GSC57 - ZG47 If Instrument detects a Resistance value higher than Message ">1999" means that EARTH 05.06.01 the resistance value is higher 1999 , the instrument than maximum > 1999 will show the screen measurable. alongside. Vd= 1V Test:04 RAVG=0.74...
GSC53N - GSC57 - ZG47 6.6. LOW10A: CONTINUITY TEST WITH 10A TEST CURRENT (GSC57 ONLY) WARNING Before carrying out the continuity test make sure that there is no voltage at the ends of the conductor under test. Turn the switch on LOW 10A position.
GSC53N - GSC57 - ZG47 6.6.1. Measurement Procedure and Result of "RMEAS" mode 1. Select the "RMEAS" mode by means of the F1 key. 2. Connect the test leads to B1, B2, B3, B4 input terminals according to the following picture: 1.3A...
GSC53N - GSC57 - ZG47 6.6.2. Measurement Procedure and Result of "VDROP" mode 1. Select the "VDROP" mode by means of the F1 key. 2. Connect the test leads to B1, B2, B3, B4 input terminals according to the following picture: 1.3A...
GSC53N - GSC57 - ZG47 6.6.3. "RMEAS" and "VDROP" faulty cases if the instrument doesn't notice the presence of LOW 10A 05.06.01 Power in the socket "Power ONLY 10A", - - - visualizes screens represented to side. Check if the C5700 cable is...
Page 68
GSC53N - GSC57 - ZG47 In the RMIS mode If the Resistance value higher 05.06.01 than maximum value of the resistance measurable. is over the maximum measurable, >0.999 instrument emits acoustic signal Test current displays a screen similar 9.12A...
GSC53N - GSC57 - ZG47 7. AUX: MEASUREMENT WITH EXTERNAL PROBES Turn the switch on AUX position. The F4 function key effects the following operations: Pressing this key the instrument shows one of the following working mode displayed circularly: ...
GSC53N - GSC57 - ZG47 7.1. ENVIRONMENTAL PARAMETER AND LEAKAGE CURRENT: REAL TIME MEASUREMENT This working mode allows to execute real time measurement and recording of Environmental Parameter and Leakage current 1. Press this key to access to "AUX" mode.
Page 71
GSC53N - GSC57 - ZG47 PE (Protection Cunductor) PE (Protection Cunductor) SINGLE PHASE THREE PHASE PHASE LOAD OR LOAD OR ELECTRICAL PLANT ELECTRICAL PLANT NEUTRAL POSSIBLE POSSIBLE ADDITIONAL ADDITIONAL CLAMPS CLAMPS Indirect Leakage Current measurement in a Indirect Leakage Current measurement in a...
GSC53N - GSC57 - ZG47 7.2. ENVIRONMENTAL PARAMETER AND LEAKAGE CURRENT: RECORDING Before starting a recording we recommend You to check that real time values are correct. To this purpose follow the measurement procedure described in paragraph 7.1. in addition it's fundamental that Instrument settings correspond to the accessories is use.
Page 73
GSC53N - GSC57 - ZG47 To Select MANUAL or AUTOMATIC MENU start/stop mode, place the cursor on RECORDER CONFIG MANU or AUTO using the key F1 or S T A R T F2 and select the desired mode using M A N U F3 or F4.
GSC53N - GSC57 - ZG47 7.2.2. RECORDING: setting of Typical Configurations The following “Typical Configurations” are selectable inside meter: Standard Configuration Description LEAKAGE (I1) Setting of measuring and recording mode of Leakage current on I1 channel. TEMP. °C(I1) Setting of measuring and recording mode of Temperature (°C) on I1 channel.
GSC53N - GSC57 - ZG47 8. ANALYSER This function allows the following operations: display in real time the electrical parameters of a single phase and three-phase systems (with and without neutral wire) and the harmonic analysis of voltages and currents.
GSC53N - GSC57 - ZG47 8.1. BASIC SETTING: ANALYSER CONFIG Place the rotary switch in the ANALYSER position, press the MENU key, using the F1/F2 keys select the ANALYSER CONFIG item and press the ENTER Key. The following page will be displayed:...
Set the desired value by pressing the keys F3 and F4. WARNING If “FlexINT” is selected (GSC53N and ZG47), the current range could be set only to 1000A or 3000A. 8.1.5. How to set the value of the transformer voltage ratio (TV RATIO)
GSC53N - GSC57 - ZG47 8.2. BASIC SETTING: RECORDER CONFIG Place the rotary switch in the ANALYSER position, press the MENU key, using the F1/F2 keys select the RECORDER CONFIG item and press the ENTER Key. This option allows you to check and eventually modify the recording parameters and the selected parameters (up to a maximum of 62+Frequency).
Page 79
GSC53N - GSC57 - ZG47 To Select MANUAL or AUTOMATIC MENU start/stop mode, place the cursor on RECORDER CONFIG MANU or AUTO using the key F1 or S T A R T F2 and select the desired mode using M A N U F3 or F4.
Page 80
GSC53N - GSC57 - ZG47 Use the keys F1, F2 to position the cursor on the desired word and use the keys F3 / F4 to modify the value or select / deselect the desired parameter (it’s selected if marked in black).
Page 81
GSC53N - GSC57 - ZG47 From 3 page of RECORDER CONFIG MENU ENTER RECORDER CONFIG C O - G E N E R A T I O N : O N P O W E R : P g...
Page 82
GSC53N - GSC57 - ZG47 From 3 page of RECORDER CONFIG MENU ENTER RECORDER CONFIG C O - G E N E R A T I O N : O N P O W E R : P g...
Page 83
GSC53N - GSC57 - ZG47 Symbols Description Advised settings The recording of all the selected parameters will start at 00 START:MAN seconds after pressing START/STOP (see chapter _Ref6712586 \r \h 10.1). The recording of all the selected parameters will be interrupted ...
Page 84
GSC53N - GSC57 - ZG47 ON = the instrument is able to face situations of CO-GENERATION of electrical equipment (that is, the equipment under test is able to generate energy besides absorbing it). Accordingly, the instrument will record the powers and energies both absorbed CO-GENERATION and generated (see paragraph 17.12.1).
GSC53N - GSC57 - ZG47 8.3. ANALYSER FUNCTIONS For a simple usage, the main working mode of the ANALYSER mode can be selected by means of F3 and F4. "VOLTAGE" function: to be used to display voltage and corresponding harmonics (see paragraph 8.4)
GSC53N - GSC57 - ZG47 8.4. "VOLTAGE" FUNCTION This function permits you to display in real time the RMS value of AC/DC voltage, the peak and Thd value of the 3 phase voltages (see paragraph REF _Ref530398168 \r \h 17.11), the waveform and the harmonic spectrum of the 3 phase voltages.
GSC53N - GSC57 - ZG47 8.4.2. "METER" mode In this mode the instrument shows one of the below screens according to the settings made as per paragraph 8.1. 27.09.00 17:35:12 27.09.00 17:35:12 27.09.00 17:35:12 VOL TA G E V O L T A G E...
GSC53N - GSC57 - ZG47 8.4.3. "HARM" mode Selecting the HARM mode one of the below screens will be displayed according to the settings made as per paragraph 8.12. The screens show the harmonics (see paragraph 17.11) of the phase or phase-to-phase voltage.
GSC53N - GSC57 - ZG47 8.4.4. "WAVE" mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 8.1. The screens show the waveform of the phase or phase-to-phase voltage.
GSC53N - GSC57 - ZG47 8.5. "CURRENT" FUNCTION This function permits to display in real time the RMS value of AC/DC currents, the peak and Thdl value (see paragraph 17.11) of the 3 phase currents, the waveform and the harmonic spectrum of the 3 phase currents.
GSC53N - GSC57 - ZG47 8.5.2. “METER" mode In this mode the instrument shows one of the screens below according to the settings made as per paragraph 8.1. 27.09.00 17:35:12 27.09.00 17:35:12 27.09.00 17:35:12 CUR RE N T C U R R E N T...
GSC53N - GSC57 - ZG47 8.5.3. “HARM" mode Selecting the HARM mode one of the screens below will be displayed according to the settings made as per paragraph 8.1. The screens show the harmonics (see paragraph 17.11) of the phase currents.
GSC53N - GSC57 - ZG47 8.5.4. "WAVE" mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 8.1. The screens show the waveform of the phase currents. 27.09.00 17:35:12 27.09.00...
GSC53N - GSC57 - ZG47 8.6. "POWER" FUNCTION This function permits you to display in real time the RMS value of AC/DC voltage, the peak and ThdV value of the 3 phase voltages, the waveform of the 3 phase voltages, the RMS value of AC/DC currents, the peak and Thdl of the 3 phase currents, the waveform of the 3 phase currents.
GSC53N - GSC57 - ZG47 8.6.2. "METER" mode In this mode the instrument shows one of the below screens according to the settings made as per paragraph 8.1. 27.09.00 17:35:12 27.09.00 17:35:12 27.09.00 17:35:12 PO WE R P O W E R...
GSC53N - GSC57 - ZG47 8.6.2.1. PEAK ENERGY DEMAND In three-phase system selecting the POWER mode and pressing F1 key 3 times you can reach the “Peak Demand” mode. The “Peak Demand” screen shows the Max Average value of Active Power (and the corresponding Energy) measured during the last (or running) recording.
GSC53N - GSC57 - ZG47 8.6.3. "WAVE" mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 8.1. The screens show the waveform of the phase currents and the phase (or phase-to-phase) voltage.
GSC53N - GSC57 - ZG47 8.7. "ENERGY" FUNCTION This function permits to display the values of the phase and total active powers, the value of the phase and total capacitive and inductive reactive powers, the values of the power factors and phase and total cos . Furthermore, the instrument is able to measure directly (see 8.7.2) the values of the phase and total active energies and the values of the phase...
GSC53N - GSC57 - ZG47 8.7.2. "METER" mode In this mode the instrument shows one of the below screens according to the settings made as per paragraph 8.1. 27.09.00 17:35:12 27.09.00 17:35:12 27.09.00 17:35:12 EN ER G Y E N E R G Y...
GSC53N - GSC57 - ZG47 8.8. MEASURING PROCEDURES 8.8.1. Using the Instrument in a Single Phase System WARNING The maximum voltage between B1 and B4 inputs is 600 V~ (CATII) / 350V~ phase – earth or 600V~ (CATIII) / 300 V~ phase to earth.
GSC53N - GSC57 - ZG47 8.8.2. Using the Instrument in a Three Phase 4 Wire System WARNING The maximum voltage between B1, B2, B3, B4 inputs is 600 V~ (CATII) / 350V~ phase – earth or 600V~ (CATIII) / 300 V~ phase to earth.
Page 102
GSC53N - GSC57 - ZG47 6. The values of the available electrical parameters will be displayed. For further details see the paragraph relevant to the position of the switch. 7. You can eventually press HOLD to interrupt the updating in real time of the displayed values.
GSC53N - GSC57 - ZG47 8.8.3. Using the Instrument in a Three Phase 3 Wire System WARNING The maximum voltage between B1 and B4 inputs is 600 V~ (CATII) / 350V~ phase – earth or 600V~ (CATIII) / 300 V~ phase to earth.
Page 104
GSC53N - GSC57 - ZG47 b) The active power P of each phase is positive. If negative, turn the clamp of the phase in question. c) The value of the Pf of each phase is not excessively low (typically it’s not lower than 0.4).
GSC53N - GSC57 - ZG47 9. SAVING RESULTS The SAVE button can be used to store the displayed results related to the rotary switch position: SAFETY TEST and for AUX rotary switch position: pressing this key the instrument will store the displayed result generating a corresponding record in the SAFETY TEST MEMORY (see paragraph 11.1)
GSC53N - GSC57 - ZG47 RECORDINGS 10.1. START A RECORDING The recording function is available for ANALYSER and AUX rotary switch position. As you can read in the paragraphs 7.2.1 and 8.2, a recording can be started manually or automatically. Therefore, after setting all the parameters and leaving the Menu, the instrument will start to record: ...
GSC53N - GSC57 - ZG47 10.2. SETTING TYPICAL CONFIGURATIONS In order to facilitate this task, the instrument is provided of the following two pre-setting recording modes: 1. Default Configuration: it’s comprehensive which should fit most cases. 2. Typical Configuration: it’s possible to select recording with pre-setting parameters for...
GSC53N - GSC57 - ZG47 If the user changed the instrument’s settings can quickly resume the above configuration using the RESET option (see paragraph 5.4). By pressing START/STOP the recording of the selected parameters is started according to the settings made in the MENU (see paragraphs 8.1 and 8.2). The rotary switch position doesn’t affect the recording setting.
Page 109
GSC53N - GSC57 - ZG47 4. Press ENTER key. The instrument displays the message “Data saved” for a while to confirm the desired configuration (see above on the right). The instrument return to the measure mode. Below you can find the parameters for each of 5 Typical Configurations: EN50160 ...
Page 110
GSC53N - GSC57 - ZG47 HARMONICS ANALYSER CONFIG: System: not modified Frequency: not modified Current Range: not modified Clamp Type: not modified TV Ratio: not modified Password: not modified RECORDER CONFIG: Start: MANU Stop: MANU Integration period: 10min...
Page 111
GSC53N - GSC57 - ZG47 POWER & ENERGY ANALYSER CONFIG: System: not modified Frequency: not modified Current Range: not modified Clamp Type: not modified TV Ratio: not modified Password: not modified RECORDER CONFIG: Start: MANU Stop: MANU Integration period:...
GSC53N - GSC57 - ZG47 10.3. DURING A RECORDING If during a recording the external power supply is de-energised, the instrument will continue the recording using the internal battery power until the batteries are exhausted (the data stored up to the point the instrument shuts down won’t get lost). For this we recommend you ALWAYS insert a new set of batteries before a long recording.
GSC53N - GSC57 - ZG47 10.3.2. Rotary Switch during a recording If You move the rotary switch during a recording the following screen will appear: R e c o r d i ng R e c o r d i n g This page means that a recording is running but the actual rotary switch position doesn't correspond to this.
GSC53N - GSC57 - ZG47 10.4. STOPPING A RECORDING OR AN ENERGY MEASUREMENT The instrument uses a protective routine to avoid the risk of being disturbed or interrupted during a recording or an energy measurement. Once a recording or a direct energy measurement (see paragraph 8.7.2) has been started (with the option PASSWORD...
GSC53N - GSC57 - ZG47 INSTRUMENT'S MEMORY By pressing the MENU key the following screen will be displayed: MENU GENERAL S A F E T Y T E S T M E M O R Y A N A L Y S E R M E M O R Y...
GSC53N - GSC57 - ZG47 11.2. ANALYSER MEMORY This option permits you to display: The present content of the instrument memory The size of the memorised data The residual space available for future recordings (expressed in days and hours) All the stored data can be displayed and analysed only downloading them into a PC with the operating software.
GSC53N - GSC57 - ZG47 CONNECTING THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must connect the Optical serial cable code C2001 shipped with the instrument to a PC COM port. The available transmission speeds are the following:...
GSC53N - GSC57 - ZG47 MAINTENANCE 14.1. GENERAL INSTRUCTION 1. The tester you have purchased is a precision instrument. Strictly follow the instructions for use and storage reported in this manual to avoid any possible damage or danger during use.
GSC53N - GSC57 - ZG47 TECHNICAL SPECIFICATIONS 15.1. TECHNICAL FEATURES Accuracy is indicated as [% of reading + number of digits]. It refers to the following atmospheric conditions: a temperature of 23°C ± 5°C with a relative humidity < 60%.
Page 120
GSC53N - GSC57 - ZG47 FREQUENCY MEASUREMENT Range [Hz] Resolution [Hz] Accuracy 47.0 63.6 (0.1%rdg +1 digit) RCD and LOOP function are active only for 50Hz 0,5Hz frequency VOLTAGE MEASUREMENT (RCD, LOOP, PHASE ROTATION) Range [V] Resolution [V]...
ZG47) (*): Example: with a 1000A/1V full scale clamp , the instrument detect only current higher than 5A, AC frequency 45 .. 65Hz. AC CURRENT MEASUREMENT with FlexINT clamps (GSC53N and ZG47) - 1000A range Range (A) Voltage input...
GSC53N - GSC57 - ZG47 Cos MEASUREMENT – SINGLE PHASE AND THREE PHASE SYSTEM Resolution Accuracy [°] 0.20 0.50 0.50 0.80 0.01 0.80 1.00 AC frequency 45 .. 65Hz VOLTANGE AND CURRENT HARMONICS MEASUREMENT – SINGLE PHASE AND THREE PHASE SYSTEM...
GSC53N - GSC57 - ZG47 15.5. ACCESSORIES GSC57 - Standard accessories Description Code Cable with 3 terminals with shuko plug C2033X Set with 4 cables (2m), 4 crocodiles, 2 test leads KITGSC5 Set with 4 cables and 4 earth rods...
Page 125
GSC53N - GSC57 - ZG47 GSC53N and ZG47 - Standard accessories Description Code Cable with 3 terminals with shuko plug C2033X Set with 4 cables (2m), 4 crocodiles, 2 test leads KITGSC5 Set with 4 cables and 4 earth rods...
GSC53N - GSC57 - ZG47 SERVICE 16.1. WARRANTY CONDITIONS This instrument is guaranteed against any defect in material and manufacturing in compliance with the general sales terms and conditions. Throughout the period of guarantee all defective parts may be replaced and the manufacturer reserves the right to repair or replace the product.
GSC53N - GSC57 - ZG47 PRACTICAL REPORTS FOR ELECTRICAL TESTS 17.1. Continuity Test on Protective Conductors PURPOSE OF THE TEST Check the continuity of: protective conductors (PE), main equalising potential conductors (EQP), secondary equalising potential conductors (EQS) in TT and TN-S systems.
Page 128
GSC53N - GSC57 - ZG47 Check the continuity among: a) earth poles of all the plugs and earth collector or node. b) earth terminals of class I instruments (Boiler etc.) and earth collector or node. c) main external masses (water, gas pipes etc.) and earth collector or node.
GSC53N - GSC57 - ZG47 17.2. Insulation Resistance Measurement of The Electrical Installations (250Vdc, 500Vdc, 1000Vdc) EXAMPLE OF INSULATION MEASUREMENT ON AN INSTALLATION Enel meter Switch A Switch B OPEN OPEN OPEN OPEN OPEN Switch C FM socket Switch E...
Page 130
GSC53N - GSC57 - ZG47 PURPOSE OF THE TEST Check that the insulation resistance of the installation complies with the requirements of IEE 16 edition standard. NOTA: This test is to be effected on an open circuit with any load disconnected.
Page 131
GSC53N - GSC57 - ZG47 ALLOWABLE VALUES Insulation resistance Rated circuit voltage Test voltage (M ) SELV and PELV* 0.250 Up to 500 V included, except for the 0.500 above circuits. Over 500 V 1000 1.000 * In the new standards the terms SELV and PELV replace the old definitions "safety low voltage"...
GSC53N - GSC57 - ZG47 17.3. Check of the Circuit Separation PURPOSE OF THE TEST The test, to be effected in case the protection is realised through separation (SELV or PELV or electrical separation), shall check that the insulation resistance measured according to the indications below (depending on the separation type) complies with the limits reported in the table relative to the insulation measurements.
Page 133
GSC53N - GSC57 - ZG47 EXAMPLE OF CHECKING THE SEPARATION AMONG ELECTRICAL CIRCUITS Insulation or safety transformer making the separation among the circuits. Between the active parts of the separated circuit..And among those Test among the active parts.
Page 134
GSC53N - GSC57 - ZG47 ALLOWABLE VALUES The test result is positive when the insulation resistance indicates values higher or equal to those indicated in the table reported in the section relative to insulation tests. Notes: SELV system: is a system of category zero or very low safety voltage featured by: ...
GSC53N - GSC57 - ZG47 17.4. Earth Resistance Measurement in TT Systems PURPOSE OF THE TEST Check that the RCD is co-ordinated with the earth resistance value. It is not possible to assume an earth resistance value as reference limit when controlling the test result, while it is necessary to check every time that the co-ordination complies with the requirements of the standards.
GSC53N - GSC57 - ZG47 EXAMPLE FOR EARTH RESISTANCE TEST Let’s assume an installation protected by a 30 mA RCD. Let’s measure the earth resistance using one of the methods quoted above, to evaluate whether the installation resistance is complying with the standards in force and multiply the result by 0.03A (30 mA).
GSC53N - GSC57 - ZG47 ALLOWABLE VALUES To compare the measurements make reference to the Table 3 reporting the limits for the tripping times. On each RCD it is necessary to effect: a test with leakage current in phase with voltage and a leakage current phase shifted by 180° with respect to the voltage.
GSC53N - GSC57 - ZG47 17.7. Measurement of Short-Circuit Fault Impedance (Z PURPOSE OF THE TEST Check that the tripping power of the RCD is higher than the maximum fault current of the installation. INSTALLATION PARTS TO BE CHECKED The test shall be effected in the point where the short circuit current is the highest possible, usually immediately downstream the RCD to be checked.
GSC53N - GSC57 - ZG47 17.9. Earth Resistivity Measurement PURPOSE OF THE TEST This test aims at analysing the resistivity value of the ground in order to define the type of rods to be used. EQUIPMENT PARTS TO BE TESTED For the resistivity test admissible values do not exist.
Page 140
GSC53N - GSC57 - ZG47 The measuring method allows to define the specific resistance depth corresponding approximately to the distance “a” between the rods. If you increase the distance “a” you can reach deeper ground layers and check the ground homogeneity.
GSC53N - GSC57 - ZG47 17.10. VOLTAGE ANOMALIES (VOLTAGE SAG AND SURGE) The instruments are able to record as voltage anomalies all those rms values, calculated every 10ms, beyond the percent thresholds of Voltage Reference (Vref) set during the programming from 3% to 30 % (with step of 1%).
Page 142
GSC53N - GSC57 - ZG47 LEGEND: 1. Fundamental 2. Third Harmonic 3. Distorted Waveform Effect of the sum of 2 multiple frequencies. In the mains voltage, the fundamental has a frequency of 50 Hz, the second harmonic has a frequency of 100 Hz, the third harmonic has a frequency of 150 Hz and so on. Harmonic distortion is a constant problem and should not be confused with short events such as sags, surges or fluctuations.
GSC53N - GSC57 - ZG47 17.11.2. Limit values for harmonics EN50160 standard fixes the limits for the harmonic voltages, which can be introduced into the network by the power supplier. In normal conditions, during whatever period of a week, 95% if the RMS value of each harmonic voltage, mediated on 10 minutes, will have to be inferior than or equal to the values stated in the following table.
GSC53N - GSC57 - ZG47 17.11.4. Presence of harmonics: consequences In general, even harmonics, i.e. the 2 etc., do not cause problems. Triple harmonics, odd multiples of three, are added on the neutral (instead of cancelling each other) thus creating a condition of overheating of the wire which is extremely dangerous.
Page 145
GSC53N - GSC57 - ZG47 In presence of distorted voltages and currents the previous relations vary as follows: Phase Active Power: (n=1,2,3) Phase Apparent Power: (n=1,2,3) Phase Reactive Power: (n=1,2,3) Phase Power Factor: (n=1,2,3) Distorted Power Factor =cosf phase displacement between the...
GSC53N - GSC57 - ZG47 17.12.1. Conventions on powers and power factors As for the recognition of the type of reactive power, of the type of power factor and of the direction of the active power, the below conventions must be applied. The stated angles are those of phase-displacement of the current compared to the voltage (for example, in the first panel the current is in advance from 0°...
GSC53N - GSC57 - ZG47 17.12.2. 3 Phase 3 Wire System In the electrical systems distributed without neutral, the phase voltages and the power factors and phase cos lose importance. Only the phase to phase voltages, the phase currents and the total powers remain defined.
GSC53N - GSC57 - ZG47 17.13. MEASURING METHOD: OUTLINES The instrument is able to measure: voltages, currents, active powers, inductive and capacitive reactive powers, apparent powers, inductive and capacitive power factors, analogical or impulse parameters. All these parameters are analysed in a digital way: for each phase (voltage and current), 6 x 128 samples are acquired on a module of 16 x 20ms, repeated for the three phases.
GSC53N - GSC57 - ZG47 APPENDIX 1 – MESSAGES DISPLAYED ADVICES MESSAGE DESCRIPTION Available memory autonomy for the recording which is AUTONOM: being effected The operator is trying to cancel all the recordings effected Press ESC in order not to cancel the whole...
GSC53N - GSC57 - ZG47 APPENDIX 2 – RECORDABLE PARAMETERS: SYMBOLS Symbol Description V1, V2, V3 RMS value of the voltage of phase 1, phase 2, phase 3 respectively V12, V23 V31 Value of phase to phase voltages I1, I2, I3...
Need help?
Do you have a question about the GSC53N and is the answer not in the manual?
Questions and answers