Related Manuals for HT HT9022
Summary of Contents for HT HT9022
- Page 1 ENGLISH User manual 1.800.561.8187 information@itm.com www. .com © Copyright HT ITALIA 2011 Release EN 1.02 - 26/05/2011...
- Page 2 1.800.561.8187 information@itm.com www. .com...
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Page 3: Table Of Contents
HT9022 Table of contents: PRECAUTIONS AND SAFETY MEASURES ................3 1.1. Preliminary instructions ........................4 1.2. During use ............................4 1.3. After use ............................4 1.4. Definition of measurement (overvoltage) category ................5 GENERAL DESCRIPTION ....................... 6 2.1. Measuring average values and TRMS values ................. 7 2.2. - Page 4 HT9022 5.5. Position “W ”: DC, AC+DC power measurement ................. 28 5.5.1. DC power measurement ........................29 5.5.1.1. Key F2 “Par” ............................ 29 5.5.1.2. DC power ............................30 5.5.1.2.1. Key F4 “Fnz” in DC Power measurement ................... 30 5.5.1.3. DC voltage and current ........................30 5.5.1.3.1.
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Page 5: Precautions And Safety Measures
HT9022 1. PRECAUTIONS AND SAFETY MEASURES The instrument has been designed in compliance with directive IEC/EN61010-1 relevant to electronic measuring instruments. For your safety and in order to prevent damaging the instrument, please carefully follow the procedures described in this manual and read all notes preceded by the symbol with the utmost attention. -
Page 6: Preliminary Instructions
HT9022 1.1. PRELIMINARY INSTRUCTIONS • This clamp has been designed for use in environments of pollution degree 2. • It can be used for CURRENT and VOLTAGE measurements on installations with measurement category CAT IV 600V and CAT III 1000V. For a definition of measurement categories, see §... -
Page 7: Definition Of Measurement (Overvoltage) Category
HT9022 1.4. DEFINITION OF MEASUREMENT (OVERVOLTAGE) CATEGORY Standard CEI 61010: Safety requirements for electrical equipment for measurement, control and laboratory use, Part 1: General requirements” defines what measurement category, commonly called overvoltage category, is. In § 6.7.4: Measured circuits, circuits... -
Page 8: General Description
HT9022 2. GENERAL DESCRIPTION The clamp meter HT9022 carries out the following measurements: • DC voltage and AC+CD TRMS voltage • DC current and AC+CD TRMS current • Phase sequence • Active, reactive, apparent power and power factor on single-phase and/or balanced three phase systems •... -
Page 9: Measuring Average Values And Trms Values
HT9022 2.1. MEASURING AVERAGE VALUES AND TRMS VALUES Measuring instruments of alternating quantities are divided into two big families: • AVERAGE-VALUE meters: instruments measuring the value of the sole wave at fundamental frequency from 10 to 400Hz • TRMS (True Root Mean Square) VALUE meters: instruments measuring the TRMS value of the quantity being tested. -
Page 10: Preparation For Use
HT9022 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 generally checking the instrument in order to detect possible damage suffered during transport. -
Page 11: Operating Instructions
HT9022 4. OPERATING INSTRUCTIONS 4.1. INSTRUMENT DESCRIPTION 4.1.1. Description of the controls CAPTION: 1. Inductive clamp jaw 2. AC voltage indicator LED 3. Jaw trigger 4. Rotary selector switch 5. Key H / backlight 6. Function keys F1 – F2 – F3 – F4 7. -
Page 12: Hand Protection
HT9022 4.1.3. Hand protection CAPTION: 1. Hand protection 2. Safe area Fig. 3: hand protection Always keep your hands under the hand protection. This protection is always located in a suitable position to guarantee a correct safety distance from possible exposed or live parts (see Fig. -
Page 13: Initial Screen
HT9022 4.3. INITIAL SCREEN H T 9 0 2 2 When switching on the instrument, the initial screen appears for a few seconds. It shows: • the instrument model; S n 1 0 1 2 0 0 2 0 • the serial number of the instrument;... -
Page 14: Instrument Functions
HT9022 5. INSTRUMENT FUNCTIONS 5.1. PHASE DETECTION With the selector switch set to “V ” (Voltage measurement) or “A ” (Current measurement), by taking the end of the clamp jaw near an AC source, the red LED at the base of the clamp jaw will turn on (see Fig. 1 – part 2), which indicates that current is present. -
Page 15: Log
HT9022 5.2.3. Log ▼ ▲ By selecting “Log”, the screen to the side will appear. Press keys F2, F3 ( , ) to change the duration of the I n t . P e r i o d : integration period. It will take the following values: 1, 5, 10, 30, 60, 120, 300, 600 or 900 seconds. -
Page 16: Position "V ": Dc, Ac+Dc Voltage Measurement And Phase Sequence Verification
HT9022 5.3. POSITION “V ”: DC, AC+DC VOLTAGE MEASUREMENT AND PHASE SEQUENCE VERIFICATION WARNING The maximum DC or AC+DC input voltage is 1000V. When the display shows “> 999.9V”, it means that the maximum value the clamp is able to measure has been exceeded. -
Page 17: Key F4 "Fnz
HT9022 Insert the red cable into the input lead VΩ and the black cable into the input lead COM (Fig. 5), and position the leads to the desired points of the circuit being tested. The screen shows an example of DC Voltage measurement. -
Page 18: Ac+Dc Voltage And Voltage Harmonics Measurement
HT9022 5.3.2. AC+DC voltage and Voltage Harmonics measurement Fig. 6: AC+DC voltage measurement Insert the red cable into the input lead VΩ and the black cable into the input lead COM, and position the leads to the desired points of the circuit being tested (Fig. 6). The voltage and frequency value is shown on the display. -
Page 19: Key F4 "Fnz" In Ac+Dc Voltage Measurement
HT9022 5.3.2.2.1. Key F4 “Fnz” in AC+DC voltage measurement While measuring AC+DC voltage, press key F4 (Fnz) to open the drop-down menu shown on the screen to the side. At each 5 0 . 0 H z subsequent pressure of key F4, the cursor will scroll through the available items, as follows: •... -
Page 20: Hold
HT9022 • %: it displays the value of the harmonics as percentage value with respect to the fundamental; • Rst: it deletes all stored Max, Min values; Esc: it goes back to a normal measuring mode. • Note: since the menu contains functions with a different meaning (Max-Min and Abs-%), it is necessary to enter the menu twice: once for displaying Abs or % values and another time to enable the Max or Min functions. -
Page 21: Checking Phase Sequence And Phase Concordance With A Lead
HT9022 5.3.3. Checking phase sequence and phase concordance with a lead WARNING While measuring, the instrument must be held in the operator’s hand. < 1 0 . 0 H z Press key F1 (Mod) to open the drop-down menu shown on the Ph Seq screen to the side. - Page 22 HT9022 WARNING If the frequency of the measured voltage is lower than 40Hz or higher than 70Hz, the display shows the message “F<40 Hz” or “F>70 Hz” and phase detection does not start. P h S e q 3. When a voltage higher than or equal to 100V is detected, the...
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Page 23: Verification Of Phase Concordance
HT9022 7. If the two phases, to which the test lead has been connected, P h S e q are in the correct sequence, the instrument displays the screen here to the side. Should the phase sequence be 1 2 3 incorrect, the display shows “132”. - Page 24 HT9022 P h S e q 3. When a voltage higher than or equal to 100V is detected, the instrument gives an acoustic signal (buzzer) and the P H 1 message “Meas” is shown on the display. Do not press any key and keep the test lead connected to L1 phase cable.
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Page 25: Position "A ": Dc, Ac+Dc Current Measurement
HT9022 5.4. POSITION “A ”: DC, AC+DC CURRENT MEASUREMENT WARNING The maximum measurable DC or AC+DC current is 1000A. When the display shows “> 999.9A”, it means that the maximum value the clamp is able to measure has been exceeded. Exceeding these limits could result in electrical shocks to the user and damage to the instrument. -
Page 26: Key F4 "Fnz
HT9022 The screen shows an example of DC current measurement. 1 0 0 . 0 19/01-17:00:00 5.4.1.1. Key F4 “Fnz” Press key F4 (Fnz) to open the drop-down menu shown on the screen to the side. At each subsequent pressure of key F4, the cursor will scroll through the available items, as follows: •... -
Page 27: Ac+Dc Current And Current Harmonics Measurement
HT9022 5.4.2. AC+DC current and Current Harmonics measurement Fig. 10: AC+DC current measurement WARNING Insert the cable in the middle of the clamp jaws, in order to obtain accurate measures. Use the marks as a reference (see Fig. 2). 5.4.2.1. -
Page 28: Key F4 "Fnz" In Ac+Dc Current Measurement
HT9022 5.4.2.2.1. Key F4 “Fnz” in AC+DC current measurement While measuring Current, press key F4 (Fnz) to open the drop- down menu shown on the screen to the side. At each 5 0 . 0 H z subsequent pressure of key F4, the cursor will scroll through the available items, as follows: •... -
Page 29: Hold
HT9022 • %: it displays the value of the harmonics as percentage value with respect to the fundamental; • Rst: it deletes all stored Max and Min values; Esc: it goes back to a normal measuring mode. • Note: since the menu contains functions with a different meaning (Max-Min and Abs-%), it is necessary to enter the menu twice: once for displaying Abs or % values and another time to enable the Max or Min functions. -
Page 30: Position "W ": Dc, Ac+Dc Power Measurement
HT9022 5.5. POSITION “W ”: DC, AC+DC POWER MEASUREMENT WARNING The maximum DC or AC+DC input voltage is 1000V and the maximum measurable DC or AC+DC current is 1000A. Do not measure voltages and currents exceeding the limits given in this manual. Exceeding these limits could result in electrical shocks to the user and damage to the instrument. -
Page 31: Dc Power Measurement
HT9022 5.5.1. DC power measurement Fig. 11: DC power measurement Insert the red cable into input lead VΩ and the black cable into input lead COM. Position the red lead to “+” and the black lead to “-” and insert the “+” cable into the clamp jaws, respecting the direction of current indicated by the arrow (see Fig. -
Page 32: Dc Power
HT9022 5.5.1.2. DC power Par Sys The screen to the side shows an example of DC power 0 . 4 0 measurement. 19/01-17:00:00 5.5.1.2.1. Key F4 “Fnz” in DC Power measurement While measuring DC Power, press key F4 (Fnz) to open the drop-down menu shown on the screen to the side. -
Page 33: Key F4 "Fnz" In Dc Voltage And Current Measurement
HT9022 5.5.1.3.1. Key F4 “Fnz” in DC Voltage and Current measurement While measuring Voltage and Current, press key F4 (Fnz) to open the drop-down menu shown on the screen to the side. At each subsequent pressure of key F4, the cursor will scroll through the available items, as follows: 8 0 . -
Page 34: Measurement Of Ac 1P Or Ac 3P Powers
HT9022 5.5.2. Measurement of AC 1P or AC 3P Powers Fig. 12: measurement of AC 1P or AC 3P Powers Insert the red cable into the input lead VΩ and the black cable into the input lead COM, and connect the instrument as described in Fig. 12. -
Page 35: Ac+Dc Power
HT9022 5.5.2.2. AC+DC power The screen shows an example of AC+DC Power measurement. Par Sys 5 0 . 0 H z 2 1 . 4 7 7 . 6 8 k V a r i 2 2 . 9 0... -
Page 36: Ac+Dc Voltage And Current
HT9022 5.5.2.4. AC+DC Voltage and Current The screen shows an example of AC+DC Voltage and Current Par Sys measurement. 5 0 . 0 H z 2 2 9 . 7 9 9 . 6 19/01-17:00:00 5.5.2.4.1. Key F4 “Fnz” in AC Voltage and Current measurement While measuring Voltage and Current, press key F4 (Fnz) to open the drop-down menu shown on the screen to the side. -
Page 37: Voltage Harmonics
HT9022 5.5.2.5. Voltage harmonics The screen shows an example of Voltage Harmonics ◄ ► measurement. By pressing keys F1 (◄) or F3 (►), it is possible to move the cursor over the graph and to select the harmonic to be measured. -
Page 38: Ac Energy
HT9022 5.5.2.7. AC Energy The screen shows an example of AC Energy measurement. Par Sys The values of Active Energy, Reactive Energy, Inductive Energy 5 0 . 0 H z and Capacitive Reactive Energy are shown. 2 . 2 4 k W h 0 . -
Page 39: Position "W ": Log, On-Line Scope, Snapshot, Memory, Download
HT9022 5.6. POSITION “W ”: LOG, ON-LINE SCOPE, SNAPSHOT, MEMORY, DOWNLOAD WARNING The maximum DC or AC+DC input voltage is 1000V and the maximum measurable DC or AC+DC current is 1000A. Do not measure voltages and currents exceeding the limits given in this manual. Exceeding these limits could result in electrical shocks to the user and damage to the instrument. -
Page 40: On-Line
HT9022 WARNING When a recording is in progress, if the selector switch of the clamp is moved to any other position, the recording shall be interrupted. In the memory, you will find the values stored up to that moment. Par Sys 5 0 . -
Page 41: Memory
HT9022 During a Bluetooh transmission, press key F3 (Sys) to open the Stop 5 0 . 0 H z drop-down menu shown in the screen to the side. At each 2 1 . 4 7 subsequent pressure of key F3, the cursor will scroll through the available items, as follows: 7 . -
Page 42: Download
HT9022 5.6.1.5. Download Upon confirming the “Download” item, the instrument sets to the mode for downloading the data saved in the memory and shows D o w n l o a d the screen to the side. Pressing key F4 (Esc) goes back to the parameter measuring screen. -
Page 43: Position "Ω ": Resistance And Continuity Measurement
HT9022 5.7. POSITION “Ω ”: RESISTANCE AND CONTINUITY MEASUREMENT WARNING Before attempting any resistance measurement, remove power from the circuit under test and discharge all capacitors, if present. By positioning the selector switch to “Ω ”, the screen to the side >... -
Page 44: Key F4 "Fnz
HT9022 The screen shows an example of Resistance measurement. 50.0 kΩ 19/01-17:00:00 The screen shows an example of Continuity measurement. If the measured resistance is lower than the limit resistance Ω value set (see par. 5.2.5) shown below (Lim Res: 1Ω), the Buzzer sounds continuously. -
Page 45: Position "Inrush A ": Inrush Current Measurement
HT9022 5.8. POSITION “INRUSH A ”: INRUSH CURRENT MEASUREMENT WARNING • The maximum measurable DC or AC+DC current is 1000A. Do not measure currents exceeding the limits given in this manual. Exceeding these limits could result in electrical shocks to the user and damage to the instrument. -
Page 46: Virtual Key "Zero
HT9022 5.8.1. Virtual key “Zero” By pressing key F2 (Zero), the average value of measured current is zeroed. WARNING Note: carry out current zeroing before clamping the conductor. 5.8.2. Key F3 “Run” WARNING For any frequency of 50Hz, 60Hz and DC, 32 samples are taken in each half- period for 100 half-periods, while for a frequency of 400Hz 8 samples are taken every half-period for 100 half-periods. - Page 47 HT9022 By pressing key F4 (Esc) once, the selected item is not confirmed. Pressing key F4 again takes you back to the Inrush Current measuring screen. ▼ Pressing key F3 (OK) shows the trend of inrush current relevant 24/01-16:30:47 to the selected memory location. It shows: 1/10 •...
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Page 48: Maintenance
HT9022 6. MAINTENANCE 6.1. GENERAL INFORMATION 1. The instrument you purchased is a precision instrument. While using and storing the instrument, carefully observe the recommendations listed in this manual in order to prevent possible damage or danger during use. 2. Do not use the instrument in environments with high humidity levels or high temperatures. -
Page 49: Technical Specifications
HT9022 7. TECHNICAL SPECIFICATIONS 7.1. TECHNICAL CHARACTERISTICS Uncertainty is indicated as [% of reading + digit number]. It is referred to the following reference conditions: temperature 23°C ± 5°C with relative humidity < 80%. DC voltage Protection against Range Resolution... - Page 50 HT9022 Range [kW], [kVA] Resolution [kW], [kVA] Uncertainty 0.00 ÷ 99.99 0.01 ±(3.0%rdg+3dgt) 100.0 ÷ 999.9 Uncertainty defined for: sine waveform > 65Hz, Voltage > 10V, Current ≥ 5A, Pf ≥ 0.5 Active Energy Range [kWh] Resolution [kWh] Uncertainty 0.00 ÷ 99.99 0.01...
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Page 51: Safety Standards
HT9022 7.1.1. Safety standards Compliant with Standards: IEC / EN61010-1, IEC / EN61010-2 – 032 Technical documentation: IEC/EN61187 Safety of measuring accessories: IEC/EN61010-31 Insulation: Class 2, double insulation Pollution level: Max height: 2000m, indoor use Overvoltage category: CAT IV 600V / CAT III 1000V to earth, max 1000V between inputs 7.1.2. -
Page 52: Service
HT9022 8. SERVICE 8.1. WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect, in compliance with the general sales conditions. During the warranty period, defective parts may be replaced. However, the manufacturer reserves the right to repair or replace the product. -
Page 53: Appendix - Theoretical Outline
HT9022 9. APPENDIX – THEORETICAL OUTLINE 9.1. CALCULATION OF POWERS IN “AC 1P” MODE The instrument measures the values of Rms Voltage and Rms Current and calculates the average Power values for each period. The formulas for power calculation are: ∑... -
Page 54: Voltage And Current Harmonics
HT9022 9.4. VOLTAGE AND CURRENT HARMONICS Any periodic non-sinusoidal wave may be represented by a sum of sinusoidal waves, each with a frequency which is a whole multiple of the fundamental, according to the relationship: ∞ ∑ ω ϕ v(t) -
Page 55: Limit Values For Harmonics
HT9022 9.5. LIMIT VALUES FOR HARMONICS Standard EN-50160 prescribes the limits for the Voltage Harmonics the Energy Provider may introduce into the network. In normal operating conditions, at any time in a week, 95% of the efficient values of each harmonic voltage, averaged to 10 minutes, must be lower than or equal to the values indicated in the following Table. -
Page 56: Consequence Of The Presence Of Harmonics
HT9022 9.7. CONSEQUENCE OF THE PRESENCE OF HARMONICS Generally, harmonics of even, 2 etc. order do not create problems. Designers must consider the following points when designing a power distribution system containing harmonic currents: Installation parts Effects attributed to Harmonics...
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