USER'S MANUAL BM155
Contents
1. 1 lt lt 5 ge 3 5 A k 0 as Juco m 095 a E Powe kW1 kW2 In both un balanced and balanced load cases 3 Phase 4 Wire 3 U4W systems measure the phase to neutral powers kW kW2 and kW3 of each phase separately as illustrated System total power kWrotai is the summation of all three phase to neutral powers That is KWrotal kWi kW2 kW3 for both un balanced and balanced load cases In balanced load cases 3 Phase 4 Wire 3 U4W systems the system total power parameters can be simplified to three times of any of the phase to neutral powers That IS kWroal 3 x 1 for balanced load cases only kVAToal 3 KVA1 for balanced load cases only KVAR total 3 X KVAR1 for balanced load cases only 10 eMeasuring 3 Phase 3 Wire 3 3W Power Parameters 150F06 In both un balanced and balanced load cases 3 Phase 3 Wire 3 U3W systems measure the power components kW1 and kW2 separately as illustrated System total power kWrotal is the summation of the two measured power components That is kWrotal KW1 kW2 for both un balanced and balanced load cases In balanced load cases 3 Phase 3 Wire 3 U3W systems the system total power parameters can be achieved by the2. 2 WARNING To reduce the risk of fire or electric shock do not expose this product to rain or moisture The meter is intended only for indoor use To avoid electrical shock hazard observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms These voltage levels pose a potential shock hazard to the user Keep your hands fingers behind the hand finger barriers of the meter and the test leads that indicate the limits of safe access of the hand held part during measurement Inspect test leads connectors and probes for damaged insulation or exposed metal before using the instrument If any defects are found replace them immediately This Clamp on meter is designed to apply around or remove from uninsulated hazardous live conductors But still individual protective equipment must be used if hazardous live parts in the installation where measurement is to be carried out could be accessible CAUTION Disconnect the test leads from the test points before changing meter functions INTERNATIONAL ELECTRICAL SYMBOLS Caution Refer to the explanation in this Manual Caution Risk of electric shock Earth Ground Double Insulation or Reinforced insulation Fuse AC Alternating Current DC Direct Current Application around and removal from hazardous live conductors is permitted 0 i lt lt 2 CENELEC Directives The instruments conform to CENELEC Low voltage directive 73 23 EEC and Elect
3. 30V Add 1 to specified accuracy ACA fundamental lt 5A or ACV fundamental lt 90 Accuracy is not specified ACA fundamental lt 2A or ACV fundamental lt 50V A lags Indication A lags LCD annunciator turns on to indicate an inductive circuit or Current A lags Voltage V i e phase shift angle is YA lags Indication is specified at 50 60Hz fundamental without harmonics and atACV gt 90V ACA gt 9A amp PF lt 0 95 LIMITED WARRANTY BRY MEN warrants to the original product purchaser that each product it manufactures will be free from defects in material and workmanship under normal use and service within a period of one year from the date of purchase BRYMEN s warranty does not apply to accessories fuses fusible resistors Spark gaps batteries or any product which in BRYMEN s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation or handling To obtain warranty service contact your nearest BRY MEN authorized agent or send the product with proof of purchase and description of the difficulty postage and insurance prepaid to BRYMEN TECHNOLOGY CORPORATION BRYMEN assumes no risk for damage in transit BRYMEN will atits option repair or replace the defective product free of charge However if BRYMEN determines that the failure was caused by misused altered neglected or damaged by accident or abnormal conditions of operation or handling you will b
4. Ohm amp Hz functions 9999 counts LCD display s ACA clamp on function 4000 counts LCD display s 14 Update Rate Power function 1 per second nominal Voltage ACA clamp on Ohm Hz amp Temperature functions 4 per second nominal Polarity Automatic Low Battery Below approx 2 4V Operating Temperature 0 C to 40 C Relative Humidity Maximum relative humidity 80 for temperature up to 31 C decreasing linearly to 50 relative humidity at 40 C Altitude Operating below 2000m Storage Temperature 20 C to 60 C lt 80 R H with battery removed Temperature Coefficient nominal 0 15 x specified accuracy C 0 C 18 C or 28 C 40 C or otherwise specified Sensing True RMS sensing for all models Safety Meets IEC61010 2 032 1994 EN61010 2 032 1995 UL3111 2 032 1999 Measurement Category III 600 Volts ac amp dc Transient protection 6 5kV 1 2 50us surge for all models Pollution degree 2 E M C Meets EN61326 1997 1998 A1 EN61000 4 2 1995 and EN61000 4 3 1996 In an RF field of 3V m Total Accuracy Specified Accuracy 45 digits Performance above 3V m is not specified Overload Protections ACA Clamp on jaws AC 1000A rms continuous amp COM terminals all functions 600VDCNAC rms Power Supply standard 1 5V AAA Size NEDA 24A or IEC LR03 battery X 2 Power Consumption Voltage ACA Hz amp Power functions 10mA typical Ohm amp Temperature functions 4mA typical APO Timing Idle
5. for 17 minutes APO Consumption 10uA typical Dimension L224mm X W78mm X H40mm Weight 224 gm approx aw opening Conductor diameter 45mm max Special features Backlight display model 152 amp 155 only AutoVA Auto Selection on ACV DCV or ACA functions Power measurement of selectable W VAR amp VA with dual display Total Power F actor features Total harmonic distortion THD F model 155 only PEAK rms HOLD 15 Accessories Testleads pair batteries installed user s manual soft carrying pouch BKP 60 banana plug type K thermocouple model 152 amp 155 only Optional accessories BR 15 PC interface kit including BA 1XX optical adapter back BC 100R cable amp Bs15x software CD BKB32 banana plug to type K socket plug adaptor model 152 amp 155 only Electrical Specifications Accuracy is reading digits number of digits or otherwise specified at 23 C 5 C amp less than 75 R H True RMS all models ACV amp ACA clamp on accuracies are specified from 0 to 100 of range or otherwise specified Maximum Crest Factor are as specified below and with frequency spectrums besides fundamentals fall within the meter specified AC bandwidth for non sinusoidal waveforms Fundamentals are specified at 50Hz and 60Hz AC Voltage 0Hz 60Hz 00 0V 0 5 5d 00 0V 1 5 0 00 0V CMRR lt 6008 DC to 60Hz Rs 1kQ Input Impedance 2MQ 30pF nominal Crest F actor gt 2 3 1 at full scale 6 g
6. BM155 PowerClamp Series Power Clamp N THe ig 1 1 SAFETY This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the instrument in a safe operating condition If the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired The meter meets the requirements for double insulation to 1EC61010 2 032 2002 EN61010 2 032 2002 UL61010B 2 032 2003 Category Ill 600 Volts ac and dc PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY Il is energy consuming equipment to be Supplied from the fixed installation Note Examples include household office and laboratory appliances OVERVOLTAGE CATEGORY Ill Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations Note Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation OVERVOLTAGE CATEGORY IV Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation Note Examples include electricity meters and primary over current protection equipment TERMS IN THIS MANUAL WARNING identifies conditions and actions that could result in serious injury or even death to the user CAUTION identifies conditions and actions that could cause damage or malfunction in the instrument
7. e billed for the repair THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE BRYMEN WILL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES EBRO AOU Swiss Technology Company ELBRO LTD gt Gewerbestrasse 4 gt P O Box 11 gt CH 8162 Steinmaur e Phone 41 0 44 854 73 00 Fax 41 0 44 854 73 01 gt e mail info elbro com e www elbro com P N 7M1C 0591 A000
8. ecified accuracy 20 C 50 C or 4 F 58 F Frequency RANGE Accuracy Sensitivity Sine RMS 40A range gt 4A 400A range lt 8 1000A range gt 400A 600V range gt 30V THD F model 155 only 1 5 of Reading 6d 2nd 3rd 5 0 of Reading 6d 0 0 999 9 2 2 5 of Reading 6d 3 0 of Reading 0 4 5 of Reading 6d THD F is defined as Total Harmonic RMS Fundamental RMS x 100 Range for Dual Display mode 0 99 35 pecified accuracy ACA fundamental gt 5A ACV fundamental gt 50V Total Power Factor PF Accuracy o 21 6 2nd 5lst Specified accuracy ACA fundamental gt 2A ACV fundamental gt 50V 0 10 0 99 18 Power RANGE Accuracy 2 0 G00 0KVA F 10th 10 60 47th 5lst PF 0 99 0 1 2 0 60 3 5 60 5 5 60 RANGE 3 0 600 0KW KVAR F 10th 11th 25th PF 0 99 0 70 3 5 6d PF 0 70 0 50 10 6d PF 0 50 0 30 4 5 6d 1S pecified accuracy is for ACA clamp measurement at the center of jaws When the conductor is not positioned at the jaw center position errors introduced are Add 1 to specified accuracy for ACA measurements made WITHIN jaw marking lines away from jaw opening Accuracy is not specified for ACA measurement made BEYOND jaw marking lines toward jaws opening 200 1 to specified accuracy ACA fundamental lt 5A or ACV fundamental lt 90V Accuracy is not specified ACA fundamental gt 1A or ACV fundamental lt
9. following expressions kWroal kWi 2 Same as above kVAtotal V 3X KVA for balanced load cases only KVAR Total y KVAtotal KWrota for balanced load cases only 11 150F07 PCConm mos 300r feo At 5 2 F REC A o e a as cet Temperature function model 152 6 155 only Set the slide switch function selector to the C F position Default at last selected function Press SELECT button to toggle between C and F measurement functions Be sure to insert the banana plug type K temperature bead probe Bkp60 at correct polarities You can also use a plug adapter Bkb32 Optional purchase with banana pins to type K socket to adapt other type K standard mini plug temperature probes Q functions Set the slide switch function selector to the QQ function position Default at last selected function Press SELECT button to toggle between Q and measurement functions Backlighted display models 152 amp 155 only Press the SELECT button for 1 second or more to toggle the display backlight on or off Auto Power Off APO The meter turns off after approximately 17 minutes of neither switch nor button activity To wake up the meter from APO slide the function selector to other positions and back on again Always turn the function selector to OFF when the meter is not in use 12 Disabling A
10. le the APO feature press amp hold the HOLD button while setting the Slide switch function selector from any position to the Nie position before using Peak rms mode for long term measurements HOLD mode Hold mode freezes the display for later viewing When any function is auto selected or manual selected press HOLD button momentarily toggles to this mode The annunciator turns on 7 Notes on Displacement Power Factor amp Total Power Factor elntroduction Power is the rate of change of energy with respect to time in terms of voltage V and current A Instantaneous real power w vi where v is the instantaneous voltage and i the instantaneous current The average real power is the mean of vi and is given by W 2 7 vidt over the interval from 0 to 2 z l eDisplacement Power Factor more traditional Assuming V and A are pure Sinusoidal waveforms without harmonics as in most traditional cases that is v V sin tandi Jsin t the expression can be simplified to W 1 2 1 605 6 where Vand Zare the peak values is the displacement power factor angle and Cos Is the displacement power factor Using RMS values itis written as W Vims X Arms Cos 0 Practically in such cases without harmonics is also called the phase shift angle of the current A to the voltage V An inductive circuit is said to have a lagging power factor since current A lags voltage V phase shiftangle and th
11. n the secondary mini display 8 Denoting efficiency absolute PF value is adopted e A lags LCD annunciator turns on to indicate an inductive circuit or Current A lags Voltage V i e phase shiftangle is On the contrary together with significant PF values WITHOUT turning on A lags indicates a capacitive circuit or Current A leads Voltage V i e phase shift angle is au i Note 1 When measuring load circuits with power absorptions as in most applications positive W Real Power readings indicate correct measurement setups Negative readings LCD annunciator turns on indicate either the clamp on jaws direction or the test leads polarity is reversed in such cases Correct the setups to get proper A lags indications 2 When encountering largely distorted waveforms A lags detection might be affected due to the influence of harmonics As mentioned it is recommended to deal with e g filter out harmonics before correcting phase shift problems n eMeasuring One or Single Phase Power Parameters eMeasuring 3 Phase 4 Wire 3 4W Power Parameters 150F05
12. on V COM terminals the meter displays the voltage value in appropriate DC or AC whichever larger in peak magnitude LCD annunciator dc or turns on respectively 60 the contrary with no voltage signal present on V COM terminals but a ACA current Signal above the nominal threshold of AC 1A 40Hz 500Hz up to the rated 1000A is input via the jaws the meter displays the ACA current value LCD annunciator v turns on accordingly eThe Auto VA feature stays at the auto selected function as long as its signal remains above the specified threshold Press SELECT button momentarily to manually select thru the functions ACA ACV DCV and then goes back to Auto VA CAUTION Application and removal of the Clamp on meter eF ornon invasive ACA current measurements press the jaw trigger and clamp the jaws around only one single conductor of a circuit for load current measurement Make sure the jaws are completely closed or else it will introduce measurement errors Enclosing more than one conductor of a circuit will result in differential current like identifying leakage current measurement Locate the conductor s at the J aws center as much as possible to get the best measuring accuracy For removal press the jaw trigger and remove the jaws from the conductor s 5 eAdjacent current carrying devices such as transformers motors and conductor wires will affect measurement accuracy Keep the jaws away from them as much as possible
13. romagnetic compatibility directive 89 336 EEC 3 3 PRODUCT DESCRIPTION This user s manual uses only representative model s for illustrations Please refer Specification details for function availability to each model 1 Transformer Clamp J aws for AC Current magnetic field pick up 2 aw marking lines for ACA amp thus Power position error indication 3 Hand F inger Barrier to indicate the limits of Safe access to the jaws during current measurements 4 Push buttons for special functions amp features 5 Input J ack for all functions EXCEPT non invasive ACA current amp thus Power function 6 Common Ground reference Input J ack for all functions EXCEPT non invasive ACA current amp thus Power function MAX 1000A 600V CATIE PEAK rms HOLD E 7 PC Comm THD F kW PF True RMS 7 Slide switch Selector to turn the power ON OFF and Select a function 8 LCD display 9 aw trigger for opening the transformer clamp jaws 10 J aw center Indicators at where best ACA amp thus Power accuracy is 8 Specified 4 OPERATION 150F02 AutoVA function Set the slide switch function selector to the Auto position eWith no input the meter displays Auto when itis ready eWith no ACA current input via the jaws but a voltage signal above the nominal threshold of DC 2 4V or AC 30V 40Hz 500Hz up to the rated 600V is present
14. s from the input jacks and turn OFF the meter before opening the case Do not operate with open case Trouble Shooting If the instrument fails to operate check batteries and test leads etc and replace as necessary Double check operating procedure as described in this user s manual If the instrument voltage resistance input terminal has subjected to high voltage transient caused by lightning or switching surge to the system by accident or abnormal conditions of operation the series fusible resistors will be blown off become high impedance like fuses to protect the user and the instrument Most measuring functions through this terminal will then be open circuit The series fusible resistors and the spark gaps should then be replaced by qualified technician Refer to the LIMITED WARRANTY section for obtaining warranty or repairing service 13 Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store them separately Battery replacement The meter uses standard 1 5V AAA Size NEDA 24A or IEC LR03 battery X 2 Loosen the 2 captive screws from the battery cover case Lift the battery cover case Replace the batteries Replace battery cover case Re fasten the screws 6 Specifications General Specifications Display Voltage functions 6000 counts LCD display s Power
15. t 4 6 1 at half scale ACV AutoVA Threshold 30 6 40Hz 5002 only nominal DC Voltage 00 0V 0 5 5d NMRR gt 50dB 50 60Hz CMRR gt 120dB DC 50 60Hz Rs 1kQ Input Impedance 2MQ 30pF nominal DCV AutoVA Threshold 2 4VDC nominal 16 PEAK rms HOLD ACA amp ACV only Response 65ms to 90 Ohms 99 90 1 0 6d Open Circuit Voltage 0 4VDC typical Audible Continuity Tester Audible threshold between 10Q and 300Q Response time 250us ACA Current Clamp on 02 60Hz 0 00A 400 0A 1000A 1 0 5d 0 00A 400 0A 2 0 0 000A 2 5 5d 0 00A 400 0A 000A ACA AutoVA Threshold 1A AC 40Hz 500Hz only nominal Crest Factor gt 2 5 1atfull scale 6 lt 5 0 1 athalf scale for 40 00A amp 400 0A ranges lt 1 4 1atfull scale 6 gt 2 8 1 at half scale for 1000A range Induced error from adjacent current carrying conductor lt 0 06A A 25 pecified accuracy is from 1 to 100 of range and for measurements made atthe jaw center When the conductor is not positioned at the jaw center position errors introduced are Add 1 to specified accuracy for measurements made WITHIN jaw marking lines away from jaw opening Add 4 to specified accuracy for measurements made BEYOND jaw marking lines toward jaws opening 500Hz 3 1kHz 17 Temperature model 152 amp 155 only 50 C 300 C 58 F 572 Type K thermocouple range amp accuracy not included Add 3 C or 6 F to sp
16. to minimize influence 150F03 1 THD F Total Harmonic Distortion Fundamental function model 155 only THD F Total Harmonics RMS Fundamental RMS x 100 Total Harmonic Distortion Fundamental THD F is the percentage ratio of the Total Harmonics RMS value to the Fundamental RMS value of a voltage or current signal and is given by the above expression An ideal sinusoidal waveform has a value of 0 THD A badly distorted sinusoidal waveform may have a much higher THD value of up to several hundreds When the meter is in ACV or ACA function THD F values up to 99 THD will be displayed in the secondary mini display automatically Press THD F button momentarily toggles THD readings to main display to get full readings up to 999 9 THD 150F03 3 Line level Frequency function When ACV or ACA function is auto selected or manual selected press Hz button momentarily toggles to Line level Frequency function Frequency trigger levels vary automatically with function ranges Peak rms J mode Peak rms compares and displays the maximum RMS value of surge voltage or Current with durations as short as 65ms When ACV or ACA function is auto selected or manual selected press and hold Peak rms button for one second or more toggles to this mode The LCD annunciators P Max turn on Note Manually disab
17. us Sin are both anda Capacitive circuit is said to have a leading power factor since current A leads voltage V phase shift angle and thus Sin are both eTotal Power Factor encountering harmonics When encountering distorted waveforms with the presence of harmonics however the simplified power expression Should not be used since substituting the above mentioned pure sinusoidal V and A functions cannot fulfill the actual conditions Cosine of phase shift angle Cos 7 or the displacement power factor is no longer the only component constituting the overall power factor Harmonics do increase apparent power and thus decrease the overall power factor That is the Total Power Factor is actually affected by both phase shift angle and harmonics and is given by the expression Total Power Factor PF Real Power W Apparent P ower VA In order to improve overall system power factor nowadays power system engineer needs to address both phase shift and harmonics problems Practically harmonics should be dealt with e g filtering out before phase shift to be corrected e g installing Capacitors in parallel with inductive loads Power function Set the slide switch function selector to the Power position eDefault at last selected function Press SELECT button momentarily selects between W real power VAR reactive power amp VA apparent power measurement functions ePF Total Power Factor displays simultaneously i
18. uto Power Off APO Press and hold the HOLD button while sliding the function selector to a designated function selector position This disables the Auto Power Off feature of the functions on that particular function selector position The LCD displays AFF to confirm activation right after the HOLD button is released Slide the function selector to any other positions then resumes Auto P ower Off feature RS232C PC computer interface capabilities The instrument equips with an optical isolated data output port at the bottom case near the battery compartment Optional purchase PC interface kit BR 15X including BA 1XX Optical Adapter Back BC 100R Cable amp Bs15x Software CD is required to connect the meter to PC computer thru RS232C protocol The RS232C Data Recording System Software Bs15x equips with a digital meter an analog meter a comparator meter and a Data Graphical recorder Refer to the README file comes with the interface kit for further details Press and hold the Hz button while sliding the function selector to a designated function selector position This enables data output of the functions on that particular function selector position The LCD displays r to confirm activation right after the Hz button is released Slide the function selector to any other positions then disables data output 5 MAINTENANCE WARNING To avoid electrical shock disconnect the meter from any circuit remove the test lead
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