. Copyright HT ITALIA 2017 Release EN 1.02 -.GSC60 Table of contents: PRECAUTIONS AND SAFETY MEASURES. Preliminary instructions. During use. After use.4 1.4. Definition of measurement (overvoltage) category.4 GENERAL DESCRIPTION.
5.GSC60 6.7.4. Anomalous situations in 3-wire and 2-wire earth measurements.
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AUX: Measure and recording of ambient parameters. ∆V%: Voltage drop of main lines.78 6.9.1. Anomalous situations.82.(such as construction sites, swimming pools, etc.) and higher than 50V in normal environments, since a risk of electrical shock exists. Only use original HT accessories. The following symbols are used in this manual: CAUTION: observe the instructions given in this manual; improper use could damage the instrument, its components or create dangerous situations for the operator.GSC60 1.2. DURING USE Please carefully read the following recommendations and instructions: CAUTION Failure to comply with the caution notes and/or instructions may damage the instrument and/or its components or be a source of danger for the operator.
Before changing function, disconnect the test leads from the circuit under test.GSC60 2. GENERAL DESCRIPTION 2.1. FOREWORD The instrument is equipped with a TFT color LCD display, with capacitive 'touch-screen' that can be handled simply with the touch of a finger by the user and is structured with an icon-based menu allowing the direct selection of measurement functions for quick and intuitive use.GSC60 3. PREPARATION FOR USE 3.1. INITIAL CHECKS Before shipping, the instrument has been checked from an electric as well as mechanical point of view. All possible precautions have been taken so that the instrument is delivered undamaged.
However, we recommend checking it to detect any damage possibly suffered during transport.GSC60 4. NOMENCLATURE 4.1. INSTRUMENT DESCRIPTION CAPTION: 1. LCD Touch screen display 3. Function keys F1, F2, F3, F4 4. ,, , / ENTER keys 5.
Compartment of the connector for optical cable/USB port 6. ESC key 7.INITIAL SCREEN When switching on the instrument, the initial screen appears for a few seconds.
It shows: The HT manufacturer's logo The instrument model The Firmware version (LCD and CPU) The serial number (SN:) of the instrument .GSC60 5. GENERAL MENU Pressing the ENTER key in any condition of the instrument allows to go back to the general menu in which internal parameters may be set, the saved measures can be displayed and the desired measuring function may be selected.GSC60 5.1.2. Reference country Touch the icon to select the reference country. This choice have influence on the LOOP and EARTH measurements (see § 6.4 and § 6.7) as shown in Table 1. The screen to the side appears on the display.GSC60 5.1.5. Operator name entry Touch the icon to enter the name of the operator that will be displayed in the header of each measurement downloaded to PC. The screen to the side appears on the display.
Set the desired name using the virtual keyboard (max 12 characters).GSC60 6. OPERATING INSTRUCTIONS 6.1. RPE: CONTINUITY OF PROTECTIVE CONDUCTORS This function is performed in compliance with standards IEC/EN61557-4 and allows measuring the resistance of protective and equipotential conductors. CAUTION The instrument can be used for measurements on installations with overvoltage category CAT IV 300V to earth and max 600V between inputs.GSC60 Touch the icon. The screen to the side appears on the display. The instrument automatically carries out the test for the presence of voltage between the inputs (shown on the display) and blocks the test in case of voltage higher than 10V Touch the “AUTO”.GSC60 Perform, if necessary, the compensation of the measuring leads resistance by connecting the cables or the remote lead as shown in Fig. 7: Compensation of single cables and remote lead resistance Touch the icon to activate the measurement.
After a few seconds, the instrument provides the screen to the side if the operation is successful (Rcables .GSC60 At the end of the test, if the value of the measured resistance is higher than the set limit, the screen to the side is shown on the display. The value is shown in red and the symbol indicates the negative result of the measurement.GSC60 6.2. M: MEASUREMENT OF INSULATION RESISTANCE This function is performed in compliance with standards IEC/EN61557-2 and allows measuring the insulation resistance between the active conductors and between each active conductor and the earth. CAUTION The instrument can be used for measurements on installations with overvoltage category CAT IV 300V to earth and max 600V between inputs.GSC60 Touch the icon. The screen to the side appears on the display. The instrument automatically carries out the test for the presence of voltage between the inputs (shown on the display) and blocks the test in case of voltage higher than approx.
10V Touch the “AUTO”.GSC60 CAUTION Disconnect any cable not strictly involved in measurement and especially check that no cable is connected to In1 input. Before connecting the test leads, make sure that there is no voltage at the ends of the conductors to be tested.GSC60 6.2.1. Anomalous situations If the instrument measures a resistance higher than the set limit value but for which it is not able to generate the rated voltage, the screen to the side is displayed. Symbol is shown on the display and the values of the real test voltage are indicated in red.GSC60 6.3. RCD: TEST ON DIFFERENTIAL SWITCHES This function is performed in compliance with standard IEC/EN61557-6 and allows measuring the tripping time and current of molded case differential switches of type A ( AC ( ) and B ( ), being General (G), Selective (S) and Delayed ( ). The instrument allows performing tests on earth leakage relay RCDs with currents up to 10A (with optional accessory RCDX10).GSC60 Fig.
13: Connection for a 400V + N + PE by means of single cables and remote lead Fig. 14: Connection for a 400V + N (no PE), single cables, remote lead (no RCD B type) Fig. 15: Connection for a 400V + PE (no N) single cables, remote lead (no RCD B type) Fig.GSC60 Select the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). Touch the icon.
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The screen to the side appears on the display. Touch the icon to the left to set the RCD operating mode.GSC60 Touch the third icon at the bottom of display and select the desired type of test among the options:: x ½ Manual with multiplier ½ Idn x 1 Manual with multiplier 1Idn x 2 Manual with multiplier 2Idn .GSC60 6.3.1. Press the GO/STOP key for 2s on the instrument or the START key on the remote lead.
The instrument will start the measurement. The screen to the side is shown on the display when icon indicates the performance of the test.GSC60 6.3.2. X½, x1, x2, x5 modes 9. Press the GO/STOP key for 2s on the instrument or the START key on the remote lead. The instrument will start the measurement. The screen to the side (concerning multiplier x1) is.GSC60 6.3.4. Mode The standard defines, for molded case type STD, the tripping times for RCDs at nominal current.
The mode is used to detect the minimum tripping current (which could also be lower than the nominal voltage). Press the GO/STOP key for 2s on the instrument or the START key on the remote lead.GSC60 6.3.5. Test on earth leakage relay RCD The instrument allows performing tests on earth leakage relay RCD with currents up to 10A (with optional accessory RCDX10) 8. Connect the instrument and the optional accessory RCDX10 to the installation (see Fig.GSC60 6.3.6. Anomalous situations 1. If the voltage between inputs B1 and B4 and inputs B1 and B3 is higher than 265V, the instrument provides the warning screen shown to the side and blocks the execution of the tests.
If the voltage between inputs B1 and B4 and inputs B1.GSC60 6. If the instrument detects that the phase and neutral leads are inverted, it does not carry out the test and a screen similar to the one reported to the side is displayed. Rotate the shuko plug or check the connection of measuring cables.GSC60 11 If the instrument detects a voltage Vn-pe 50V (or the analogue Vn-pe 25V) it provides the warning screen shown to the side and blocks the test for safety reasons. Check the PE conductor and earth plant efficiency.GSC60 6.4. LOOP: LINE IMPEDANCE/LOOP AND OVERALL EARTH RESISTANCE This function is performed in compliance with standard IEC/EN61557-3 and allows measuring the line impedance, the fault loop impedance and the prospective short-circuit current. CAUTION The instrument can be used for measurements on installations with overvoltage category CAT IV 300V to earth and max 600V between inputs.GSC60 Fig. 18: P-N/P-PE measure for single-phase/two-phase 230V with cables and remote lead Fig.
19: P-N/P-PE test for 400V+N+PE by means of single cables and remote lead Fig. 20: P-P test for 400V+N+PE three-phase systems Fig. 21: P-PE/P-N test for 400V + PE (no N) by means of single cables and remote lead Fig.GSC60 6.4.1.
Test types The protection of electrical lines is the essential part of a project so as to guarantee the correct functionality and avoid damages to persons or property. To this purpose, the safety guidelines impose on electrical designers also to design the electrical installation in order to reach: 1.GSC60 The following table summarizes the possible measures executable depending on the type of system (TT, TN and IT), of selected modes and the relationships that define limit values Mode Condition x OK outcome Condition x OK outcome Condition x OK outcome.GSC60 6.4.2. STD Mode – Generic test This mode performs the impedance measurement and the calculation of prospective short circuit current without applying any evaluation. Therefore, at the end of the test, no outcome is given by the instrument. Select the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz”.GSC60 6.
The value of the assumed short-circuit current (Isc) is shown in the upper part of the display, while the Line/Loop Z impedance is shown at the bottom of the display. Press the SAVE button or touch the icon to save the measurement (see §.GSC60 6.4.3. Mode kA – Verify of breaking capacity of protection device 1. Select the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4).GSC60 5.
Press the GO/STOP key for 2s or the START key on the remote lead. During this whole stage, do not disconnect the measuring leads of the instrument from the system under test. In case of positive outcome, the screen to the side is shown by the instrument.GSC60 6.4.4.
Mode I t – Verify of protection against short-circuit CAUTION The verify of conductor protection against the thermic effect of short-circuit is performed under the following conditions: Ambient temperature of 25°C Presence of external insulation (not live conductor) .GSC60 Touch the icon to zero the value in the In field and use the virtual keyboard to set the value of the RCD rated current within the values allowed by the instrument. The following selections are available on the instrument .GSC60 6.
If possible, disconnect all loads connected downstream of the measured point, as the impedance of these users could distort the test results. Connect the shuko plug, the alligator clips or the remote lead to the electrical mains according to Fig.
19 and Fig.GSC60 6.4.5. Mode - Verify of protection coordination 1.
Select the reference country (see § 5.1.2), the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). NOTE: for “USA” country.GSC60 5. Move the slide bar reference by selecting the protection tripping time between the options: 0.1s, 0.2s, 0.4s, 5s.
Confirm the choice by going back to the initial measurement screen. If possible, disconnect all loads connected downstream of the measured point, as the impedance of these users could distort the test results.GSC60 6.4.6. Mode - Verify of protection coordination – Norvay country 1. Select the “Norvay” country (see § 5.1.2), the options “TN, or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see §.GSC60 5. Move the slide bar reference by selecting the protection tripping time between the options: 0.1s, 0.2s, 0.4s, 5s.
Confirm the choice by going back to the initial measurement screen. Touch the fourth icon to set the calculation coefficient of the short circuit current Isc.GSC60 9. In case of negative result (minimum short-circuit current NOT interrupted by the protection device within the time indicated by the performed selections), the screen to the side is displayed by the instrument.
Note the presence of the measurement result highlighted in red.GSC60 5. Move the slide bar reference by selecting the protection tripping time between the options: 0.1s, 0.2s, 0.4s, 5s. Confirm the choice by going back to the initial measurement screen 6. If possible, disconnect all loads connected downstream of the measured point, as the impedance of these users could distort the test results.GSC60 6.4.8. Verify of protection against indirect contacts (IT systems) 1.
Select the options 'IT', “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). Touch the icon. The screen to the side appears on the display.GSC60 6.4.9.
Verify of protection against indirect contacts (TT systems) 1. Select the options 'TT', “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). Touch the icon. The screen to the side appears on the display.GSC60 5.
Press the GO/STOP key for 2s or the START key on the remote lead. During this whole stage, do not disconnect the measuring leads of the instrument from the system under test.
In case of positive result (overall earth resistance lower.GSC60 6.4.10. Impedance measurement by means of the accessory IMP57 Impedance measurements performed with the optional accessory IMP57 involve its connection to the instrument via optical connector through the optical cable/RS-232 C2001 supplied with same accessory.
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The IMP57 must be directly powered by the mains on which measurements are performed.GSC60 4. The symbol indicates the correct connection and recognition of the IMP57 by the instrument. Check the green STATUS LED lighting on the IMP57. The value of the voltage between the measurement points is shown in the upper part of the display.GSC60 6.4.11. Anomalous situations 1. If the instrument detects an L-N or L-PE voltage higher than the maximum limit (265V), it does not carry out the test and displays a screen like the one to the side. Check the connection of measuring cables.GSC60 6.
If the instrument detects that the phase and neutral leads are inverted, it does not carry out the test and a screen similar to the one reported to the side is displayed. Rotate the shuko plug or check the connection of measuring cables.GSC60 6.5. SEQ: PHASE SEQUENCE AND PHASE CONCORDANCE TEST This function is performed in compliance with standards IEC/EN61557-7 and allows testing the phase sequence and concordance by direct contact with live parts (not on cables with insulating sheath). The following operating modes are available: CAUTION .GSC60 2. Move the slide bar reference in the position '1T' for the selection of the test with 1 terminal or in the position '2T' for the selection of the test with 2 terminals. Confirm the choice by going back to the following initial measurement screen.GSC60 7. The symbol for the tip on phase L2 and the hourglass indicating the status of pending recognition of a voltage higher than the maximum allowed.
Once the correct voltage recognized, the symbol is shown on the display. At the end of the test, if the detected phase sequence is correct, the instrument displays a screen like the one shown to the side (result '1-2-3').GSC60 6.5.1. Anomalous situations 1. If between the test start and the acquisition of the first voltage or between the acquisition of the first and second voltage, a time longer than around 10s has elapsed, the instrument displays a screen like the one to the side.GSC60 6.6. LEAKAGE: LEAKAGE CURRENT MEASUREMENT AND RECORDING This function allows measuring and recording the leakage current in single-phase or three- phase systems by means of the optional accessory HT96U clamp.
25: Indirect measurement of leakage current in three-phase systems Fig.GSC60 3. Move the left slide bar cursor in order to select the aggregation time (see § 12.17) among the options: 2s, 5s, 10s, 30s, 1min, 2min, 5min, 10min, 15min, 30min Move the central slide bar cursor (“GO” symbol) to the positions: .GSC60 7. Press the GO/STOP key to start recording. The instrument enters stand-by mode (waiting for the next minute or the set date/time) and the “ ” symbol is displayed as shown in the screen to the side. With recording running, the “.GSC60 6.7.
EARTH: MEASUREMENT OF EARTH RESISTANCE The instrument allows performing the measurement of earth resistance of an installation in the following ways: Measurement of earth resistance with 3-wire or 2-wire voltammetric method Measurement of ground resistivity () with Wenner 4-wire method .GSC60 Fig. 28: Two-wire earth resistance measurement using an auxiliary rod Fig. 29: Two-wire earth resistance measurement from the panel board Fig. 30: Ground resistivity measurement EN - 63.GSC60 1. Select the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). Touch the icon.
The screen to the side (TT and IT systems) is shown on the display.GSC60 Touch the icon to zero the value in the 'A' field and use the virtual keyboard to set the value of fault current (declared by the Energy distribution board) between 1A and 9999A. Confirm the choice by going back to the initial measurement screen.GSC60 11Drive the auxiliary rods into the ground keeping to the distance instructions provided by the standards (see § 12.12).
12Connect the alligator clips to the auxiliary rods and to the installation under test according to Fig. 30.GSC60 16 For earth resistance measurement in TN systems, in case of positive result (see § 12.11), the screen to the side is displayed by the instrument.
It contains the value of contact voltage in the secondary display, the value of contact resistance of the voltage probe (Rs) and the value of contact resistance of the current probe (Rh).GSC60 6.7.2. 3-wire or 2-wire earth measure – USA, Extra Europe and Germany countries 1. Select the “USA”, “Extra Europe” or “Germany” reference countries (see § 5.1.2).
Select the options “TN”, “TT” (measurement not available for USA country) or “IT” (measurement not available for USA country), “25 or 50V”, “50Hz or 60Hz”.GSC60 Touch the icon to zero the value in the '' field and use the virtual keyboard to set the value of limit earth resistance between 1 and 999. Confirm the choice by going back to the initial measurement screen.GSC60 9. For earth resistance measurement in TN systems, in case of positive result (measured value LOWER than set limit value), the screen to the side is displayed by the instrument. It contains also the value of contact resistance of the voltage probe (Rs) and the value of contact resistance of the current probe (Rh).GSC60 6.7.3. Earth measurement with optional clamp T2100 This measurement allows evaluating the partial resistances of the single earth rods of complex ring networks without disconnecting them and performs the calculation of the corresponden parallel resistance. Please refer to the user manual of clamp T2100 for specific details.GSC60 1.
Select the options “TN, TT or “IT”, “25 or 50V”, “50Hz or 60Hz” and the reference voltage in the general settings of the instrument (see § 5.1.4). Touch the icon, touch the first icon in the lower left corner and set the measurement mode (see §.GSC60 5. After the insertion of the value of the first rod it will be not possible to transfer the eventually measrements saved inside the T2100 by means the key.
Perform the same procedure for each rod of the network in question. At the end of the measurements, press the GO/STOP key on the instrument.GSC60 6.7.4. Anomalous situations in 3-wire and 2-wire earth measurements 1. When starting a measurement, if the instrument detects an interfering voltage higher than 10V at the volt and ampere circuits input, it does not perform the test and displays the screen to the side.GSC60 6.8. AUX: MEASURE AND RECORDING OF AMBIENT PARAMETERS By means of external transducers, this function allows measuring and recording the following environmental parameters: °C air temperature in °C by means of thermometric transducer °F air temperature in °F by means of thermometric transducer.GSC60 3 Move the left slide bar cursor in order to select the aggregation time (see § 12.17) among the options: 2s, 5s, 10s, 30s, 1min, 2min, 5min, 10min, 15min, 30min Move the central slide bar cursor (“GO” symbol) to the positions: .GSC60 6.
Press the GO/STOP key to start recording. The instrument enters stand-by mode (waiting for the next minute or the set date/time) and the “ ” symbol is displayed as shown in the screen to the side. With recording running, the “.GSC60 6.9. ΔV%: VOLTAGE DROP OF MAIN LINES This feature allows to evaluating the percentage value of voltage drop between two points of a main line in which a protection device is installed and comparing this value to possible limit value specified by guidelines. The following modes are available: Measurement of Phase to Neutral line impedance.GSC60 Fig.
34: Connection of the instrument for L-L mode voltage drop measurement 1. Select the option “50Hz or 60Hz” and the reference Phase-Neutral or Phase-Phase voltage in the general settings of the instrument (see § 5.1.4). Touch the icon and then the icon.GSC60 Touch the icon to zero the value in the “” field and use the virtual keyboard to set the value of the Offset Z1 impedance within the range 0.000 to 9999. Confirm the selection and go back to the previous screen.GSC60 8. The value of Z1 (Offset) impedance is shown on the display and is automatically included on the lower right icon, together with the “ ” symbol to indicate the instantaneous saving of the value 9. Connect the instrument to the final point of the main line being tested according to Fig.GSC60 6.9.1. Anomalous situations 1.
If the instrument detects an L-N or L-PE voltage higher than the maximum limit (265V), it does not carry out the test and displays a screen like the one to the side. Check the connection of measuring cables 2.GSC60 6.
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If the instrument detects that the phase and neutral leads are inverted, it does not carry out the test and a screen similar to the one reported to the side is displayed. Rotate the shuko plug or check the connection of measuring cables 7.GSC60 6.10. PQA: MEASUREMENT AND RECORDING OF MAIN PARAMETERS In this section the instrument allows the below operations: Real-time display of numeric values of any electrical parameters of a single-phase and three-phase 3-wire or 4-wire system, harmonic analysis of voltages and currents up to order, power/energies and power peaks absorbed/generated .GSC60 Fig. 35: Connection for measurement on single-phase 1-2WIRES Fig. 36: Connection for measurement on Three-phase system 3-4WIRES Fig. 37: Connection for measurement on Three-phase system 3-3WIRES EN - 85.GSC60 Fig. 38: Connection for measurement on Three-phase system 3-ARON Fig.
39: Connection for measurement on Three-phase system 4-wires 3-High Leg EN - 86.GSC60 Fig. 40: Connection for measurement on Three-phase system 3-wires 3- Open Fig.
41: Connection for measurement on Two-phase system 3-wires 3-Y Open Fig. 42: Connection for measurement on Two-phase system 3-wires 3-2El. 43: Connection for measurement on Two-phase system 3-wires 1- CentrePoint.GSC60 6.10.2.
General settings Touch the icon and then the icon. The display shows the screen on the right. Touch the icon in order to set: The type of connection The nominal reference voltage and the percentage of positive and negative thresholds for the detection of voltage anomalies .GSC60 3. Move the slide bar cursor in order to select the type of clamp phase current neutral current measurement (marked in blue color), considering that the clamps can be of different types, between the options: Flexible transducer clamp type (FLEX) .GSC60 Touch the icon in order to select the pre-set configuration (see § 12.18) among those made available by the instrument. A screen like the one to the side is shown. The following options can be selectable: EN50160 .GSC60 8.
The “ ” and “ ” symbols show the Inductive or Capacitive type of the load, respectively. Press the SAVE button or touch the icon to save the measurement on the display as instantaneous snapshot (see § 7.1).GSC60 Touch the icon to show the parameters of harmonic analysis. The screen like the one to the side shows a three-phase situation. The histogram graph of percentage amplitude relevant to fundamental and voltage/current harmonics from DC, from the 1° up to the 49°.GSC60 16 Press the GO/STOP key to stop recording; the instrument automatically saves the result in its memory (see § 7.1.3). The message to the side is shown. Confirm by touching the “ ” icon or touch the “ ” icon to go back to the previous screen.GSC60 6.11. LIST OF MESSAGE AT DISPLAY MESSAGE DESCRIPTION Range: 1.15 Range: 5.999 Range: 0.01.100 Range: 1.500 Range: 0.04.10s Values out of range.
Check the setup of instrument Range: 0.199 Range: 1.200 Range: 1.999 Range: 1.3000 Internal synchronization Synchronization error. Switch off and on the instrument Checksum error Communication error.GSC60 7. OPERATIONS WITH THE MEMORY 7.1. SAVING MEASUREMENTS The structure of the memory is divided into two independent areas for the SAFETY section (safety test and PQA, LEAKAGE, AUX snapshots – max 999 locations) and for RECORDINGS (PQA, AUX, LEAKAGE recordings. The SAFETY section memory is of 'tree'.GSC60 7.1.2.
Recall and delete safety measurements and snapshots Touch the icon in the general menu. The screen to the side appears on the display. Each measurement is identified by the icons (test with positive result) (test with negative result) or (test without outcome).Touch the desired measurement.GSC60 7.1.3. Recall and delete saved recordings The recordings are automatically saved inside memory at the pressure of GO/STOP key or at the end of set stop date/time.
The SAVE key allows saving the instantaneous snapshots show at display and follow the same features of safety tests.GSC60 7.1.4. Anomalous situations 3. In case there is no measure saved and the instrument memory is accessed, a screen similar to the one reported here to the side is displayed. In case tries to define a new sub-node over the 3rd.GSC60 8. CONNECTING THE INSTRUMENT TO A PC OR MOBILE DEVICES The connection between a PC and the instrument can be done via a serial port (see Fig. 3) by means of an optical cable/USB C2006 or by means a WiFi connection. Before making the connection in USB mode, it is necessary to install on the PC the C2006 cable drivers present in the supplied CD-ROM in addition to the management software.GSC60 9.
MAINTENANCE 9.1. GENERAL INFORMATION While using and storing the instrument, carefully observe the recommendations listed in this manual in order to prevent possible damage or danger during use.
Do not use the instrument in environments with high humidity levels or high temperatures.GSC60 TECHNICAL SPECIFICATIONS Accuracy is calculated as: ±%reading + (no. Of digits). resolution at 23°C, 5% FS, cos=0.5, f=50.0Hz) FS clamp Range kW Resolution kW Accuracy 0.000 9.999 0.001 10A 10.00 99.99 0.01 0.00 99.99 0.01 10A.