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Содержание 3181-01

Страница 1: ...DIGITAL POWER HiTESTER INSTRUCTION MANUAL 3181 01 XP Hyosi A5 F E fm 1...

Страница 2: ...XP Hyosi A5 F E fm 2...

Страница 3: ...Crest Factor 10 Chapter 4 Names and Functions of Parts 11 Chapter 5 Operation 19 5 1 Preparing for Measurement 19 5 2 Power Current and Voltage Measurement 22 5 3 Integrated Watt Value Measurement 23...

Страница 4: ...Chapter 7 Maintenance and Service 37 7 1 Battery Replacement 37 7 2 Fuse Replacement 39 7 3 Cleaning 40 7 4 Service 40...

Страница 5: ...rformance from the unit please read this manual first and keep this at hand When the unit is delivered check and make sure that it has not been damaged in transit If the unit is damaged or fails to op...

Страница 6: ...CAUTION Indicates that incorrect operation presents possibility of injury to the user or damage to the equipment NOTE Denotes items of advice related to performance of the equipment or to its correct...

Страница 7: ...trocution accident will result WARNING In order to prevent an electrical accident do not make any connections while the power supply or the device to be measured is on Turn off the power for both devi...

Страница 8: ...teriorate and the unit may no longer satisfy its specifications To avoid damage to the unit do not short the output terminal and do not input voltage to the output terminal NOTE After initiating watth...

Страница 9: ...as consumer products Current and voltage are indicated as true rms values enabling accurate measurements even on distorted waveforms The integrator contains a timer allowing integration time to be set...

Страница 10: ...imer at 00 for continuous integration 4 Auto zero circuit ensures accurate power and watthour measurements over long time spans 5 Three simultaneous outputs for power current and voltage 6 Connecting...

Страница 11: ...250 V resolution 1 V Integrator Lo 200 W range 103 105 Wh Hi 2000 W range 104 106 Wh Accuracy Ambient temperature 23 5 line power 50 60 Hz power factor 1 0 Power meter Power 0 5 of rdg 0 3 of f s Curr...

Страница 12: ...rator OFF Open or Hi 5 V ON Closed or Lo 0V Dielectric strength AC 2 4 kV 1 min between input terminals and case Power supply 100 120 220 240 VAC 15 50 60 Hz Rated power Approx 3 5 W Effect of power s...

Страница 13: ...he block diagram The line voltage and current of the device under measurement are detected by a voltage transformer PT and current transformer CT respectively The resulting detected signals are voltag...

Страница 14: ...ut Current output To VF converter V IN A IN Multiplier 32 768 kHz 1 s pulse 1 min pulse 1 h pulse Figure 3 1 2 The Block Diagram 2 e Ecos t i lcos t P e i Elcos Elcos 2 t P Elcos Figure 3 1 3 Power Ca...

Страница 15: ...med after which conversion to the rms value is made Therefore measurements on distorted or other wise non sinusoidal waveforms will result in errors In the 3181 01 the true rms value is read by an abs...

Страница 16: ...switch If integration is performed at Wh Lo TIME MIN for one hour the resulting integration value N is calculated thus N Hz V Ei V T s 27 7 Hz V 1 V 3600 s 100000 By interlocking ranges and setting t...

Страница 17: ...sired time is set pressing the START switch resets the internal circuits and integration begins When the set time is reached the counter output is put on hold If the integrator is started with the tim...

Страница 18: ...lected based on the rms value waveform peaks will exceed the dynamic range of the circuit causing errors since the circuit is not operating linearly in this region The relation between the crest facto...

Страница 19: ...11 Chapter 4 Names and Functions of Parts Rear Panel 9 10 11 12 13 14 15 16 17 18 Front Panel 1 2 3 4 5 6 7 8 Chapter 4 Names and Functions of Parts...

Страница 20: ...and the decimal point will be displayed while the lower three digits will be blanked If the voltage of the backup battery falls below 4 V BATT will appear in the lower left corner INTEGRATOR display T...

Страница 21: ...rs the hold condition When the HOLD RUN switch is pressed the INTEGRATOR display value is held If the button is pressed a second time the display returns to the watthour value accumulated from the tim...

Страница 22: ...tor as applying voltage to or shorting the terminals of this connector can cause damage Battery compartment BATTERY BOX This holds the three R6P manganese batteries used for power backup The batteries...

Страница 23: ...be sure to connect the ground terminal to a proper ground Output terminals OUTPUT These output terminals output DC voltages proportional to the measured values of current and power 2 VDC f s The volt...

Страница 24: ...the equipment being measured When making connections always use conductors which have sufficient current carrying capacity tighten them securely and be careful to avoid looseness and shorts External c...

Страница 25: ...bove when using it in this manner S L I D E T O R O T A T E Handle Handle As shown in the figure below the handle may be rotated by sliding the grip at the sides of the handle in the direction of the...

Страница 26: ...18 Chapter 4 Names and Functions of Parts...

Страница 27: ...In order to maintain safety and assure the stable operating performance of this unit be sure to connect the ground terminal to a proper ground To avoid damage to the unit do not input a voltage curre...

Страница 28: ...e equipment to be measured to the measurement terminal strip as shown in Figure 5 1 1 or 5 1 2 either way When measuring only voltage or current refer to Figure 5 1 3 or 5 1 4 3 Turn the power on 4 Le...

Страница 29: ...21 Chapter 5 Operation LOAD SOURCE Figure 5 1 2 Power Current and Voltage Measurement LOAD SOURCE Figure 5 1 3 Voltage Measurement Only...

Страница 30: ...preliminaries have been completed power current and voltage are measured simply by setting the function switches If the display scale exceeds in the Lo range when power and current are being measured...

Страница 31: ...witch to a value appropriate to the power to be measured and the measurement time period Set the TIME SET dials and the timer to the desired integration time period If integration is to extend over a...

Страница 32: ...7 The display value can be put on hold as often as desired The value from the time integration was initiated by pressing the START switch can be read at any time simply by pressing the HOLD RUN switch...

Страница 33: ...25 Chapter 5 Operation Time T to overflow time Power display count Figure 5 3 4 Time Elapsed to Scale Overflow For MIN Lo T 10 000 power display For HOUR Hi T 1 000 000 power display...

Страница 34: ...26 Chapter 5 Operation...

Страница 35: ...tor of the equipment under measurement is calculated from these measured values Thus to get the power factor divide the measured power by the product of voltage and current The 3181 01 has three analo...

Страница 36: ...be ignored and the value when the display is put on hold will be printed out continuously The same situation will arise if the display is automatically held by the timer Thus the timer setting also m...

Страница 37: ...The 3171 external print terminal closed prints EXT PRINT the integrated watt value and the time elapsed in seconds The 3171 manual print ON prints MANUAL the integrated watt value and the time elapse...

Страница 38: ...terminals should have sufficient current carrying capacity and insulation NOTE Integration time Drive voltage Time base Switch Relay EXT CONTROL EXT CONTROL EXT CONTROL 6 4 External Control Terminal T...

Страница 39: ...al is closed 3 4 5 6 7 8 T1 T2 T3 T4 T5 T6 Digit signal T1 corresponds to the most significant digit 9 10 H R Hold Run Output Lo level 0 V when the power display is put on hold and Hi level 5 V in all...

Страница 40: ...5 16 DP3 DP4 DP5 Decimal Point 3 to 5 Indicate the INTEGRATOR display decimal point position outputs Hi level 5 V signal when display is turned on DP3 DP4 DP5 17 18 19 20 D C B A BCD data Synchronousl...

Страница 41: ...ions Hold Hold cleared Open 5 V Hold Closed 0 V DC voltage 2 V f s proportional to the measured power value External control 2 8 ms 90 s T 36 V ms V 80 s 70 s 60 s 0 5 s 20 s 0 5 s 60 s 40 s 720 s 5 V...

Страница 42: ...ge of the 3181 01 measurement should be performed after stepping these down using a voltage transformer PT and or current transformer CT Refer to figure below for the proper method of connection Note...

Страница 43: ...r Measurement using Voltage Current Transformers 6 7 Three Phase Three Wire Connection Two 3181 01 units may be used to calculate the algebraic sum of measured values enabling the determination of thr...

Страница 44: ...36 Chapter 6 Applications...

Страница 45: ...atteries do not install old batteries with new ones and do not mix different types of batteries Check the battery polarity carefully when inserting the batteries Do not short circuit used batteries di...

Страница 46: ...intenance and Service 1 Remove the battery box cover 2 Remove the battery snap 3 Slide out the battery box and replace the batteries 4 Slide the battery box back in and replace the battery snap and ba...

Страница 47: ...that does not meet the specifications or shorting the fuse holder may cause an accident that might result in injury or death 3 A 250 V 20 mm 5 mm dia 7 2 Fuse Replacement 1 Make sure that the power sw...

Страница 48: ...hol acetone ether ketones thinners or gasoline They may cause discoloration or damage CAUTION If the unit is not functioning properly check the batteries and fuse blowing If a problem is found contact...

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