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Page 25

R

Viewing Data (cont’d.)

Total will show the event value for entire recording session (this value is NOT GOING to be overwritten
if the DM-II is looping

Interval - Points on the graph represent event values for each of the time intervals (these values ARE
going to be overwritten if the DM-II starts looping).

TOTAL (EVENT)

INTERVAL

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Summary of Contents for DMII PRO

Page 1: ... AMPROBE DMII PRO Data Logger Recorder User s Manual Amprobe thanks you for purchasing the DMII PRO For your safety please read this instruction manual in its entirety z Part No 995758 Rev A ...

Page 2: ...lated current carrying surfaces Wear lineman gloves safety glasses and protective clothing at all times 4 Before installing or removing batteries and or fuses disconnect all inputs to the instrument and remove power cord from the outlet 5 Before applying test leads to circuit under test make certain that leads are plugged into proper jacks 6 Before using the DM II PRO always check condition of ins...

Page 3: ...tions 27 Fuse Replacement Voltage Protection Procedure 28 Total Power Quantities 29 Battery Replacement 30 Setting Voltage Selection Switch 31 Specifications 32 33 User Interface 34 Notes 35 Helpful Hints in using this manual All button commands will be represented in a bold typeface For example Press HOLD button You will be able to walk your way through the commands by following the Steps indicat...

Page 4: ...instrument is powered by batteries Batteries are used as a power back up If the power is interrupted the DMII will continue recording using its internal batteries The LCD screen will briefly display an information screen then will finally switch to a SET UP screen Step 2 ADJUST THE BRIGHTNESS OF YOUR LCD SCREEN Since the LCD screen is sensitive to temperature the brightness of your screen may vary...

Page 5: ...ms that follow STEP 1 Press SET UP button phase should be highlighted STEP 2 Press ENTER STEP 3 Scroll through the 4 Phase screens Before you press OK check Drawings A through D on pages 6 7 for instructions for connecting test leads Press OK after the test leads are connected R Phase Set up Page 5 ...

Page 6: ...A 3 Phase 4 Wire phase to neutral measurement DRAWING B 3 Phase 3 Wire phase to phase measurement Page 6 NOTE V2 and I4 inputs are NOT used NOTE Use 3 Phase 3 Wire set up below for phase voltage measurement on 3 phase 4 wire system ...

Page 7: ...R Phase Set up cont d DRAWING C 1 Phase 2 Wire DRAWING D 1 Phase 3 Wire Page 7 ...

Page 8: ...up screen using up down arrows on the keypad and press ENTER red square Step 2 Using same arrow keys highlight desired CT Step 3 Press ENTER again PROPER SET UP TYPE OF CURRENT TRANSDUCERS RANGE OF THE DM II DM CT or Standard CTs 0 1000 amps CT DM CT DM CT CE shipped with every DM II PRO ACF 3000DM Optional flexible CTs set up 30 300 amps CT ACF3000 300 ACF 3000 DM Optional flexible CTs 300 3000 a...

Page 9: ...anguage Step 3 Press ENTER If you are satisfied with the choice of language on your screen skip this section Page 9 Step 1 Under SET UP screen using arrows on the keypad select clock then press ENTER Step 2 If clock needs to be changed using arrow keys change time and date Step 3 Once correct information has been obtained press OK to return to SET UP screen ...

Page 10: ...en it will be selected before you download to your PC Please refer to the software section of your manual on how to use this feature Page 10 R Fund Fundamental Frequency Set up Step 1 Select a FUND under SET UP screen Step 2 Using arrows on keypad press ENTER to toggle between 50 or 60 Hz Step 3 Once the user selects the fundamental frequency of the system this frequency will become the default se...

Page 11: ...phases are within expected values For example if nominal voltage of the system is 480V but you are reading only 270V something is apparently wrong In this case double check the set up of the test leads and the DM II itself The meter mode allows you to view real time readings of voltage current power power factor Step 2 Begin meter mode by pressing METER button For definitions of terms see Pages 16...

Page 12: ...ither ØA ØB or ØC to view respectively phase A B or C press RN to view current in the neutral wire press TOTAL to view power and power factor NOTE Indicated readings should be of an actual condition Go to Phase B Go to Phase C Go to Neutral Wire Go to Total Power Readings ...

Page 13: ...sing the TOTAL corresponding black key you can display the total 3 Phase power measurements from all three phases Use LINE V I button to go back to volt and amp NOTE Indicated readings should be of an actual condition Page 13 ...

Page 14: ...R Meter Mode 1Ø 2 Wire Page 14 NOTE Indicated readings should be of an actual condition ...

Page 15: ...R Meter Mode 1Ø 3 Wire Press V2I2 to view Phase 2 Press V1I1 to view Phase 1 Page 15 NOTE Indicated readings should be of an actual condition ...

Page 16: ...NOT record anything Selecting or deselecting one parameter at a time Using the arrow keys you can move the blinking cursor to one of the selection boxes Press the ENTER button to change between blank not record and black record For RMS voltage and current you can change between blank black or black with T Threshold Page 16 ARROW KEYS Black box indicates parameter selected for recording Box with T ...

Page 17: ...see drawing on Page 18 In the scheduling screen there are three different recording variables that the user must set MODE RATE AND INTERVAL Using the arrow keys you can move between Mode Rate and Interval MODE Normal THE DMII will automatically stop when the memory is full Loop THE DMII will override previously recorded data except events like A max D peak B min E energy C average F demand These d...

Page 18: ... average power in 15 or 30 minute intervals with a rate of 1 second throughout 30 days time For their energy cost computations they take the highest average result Changing number of parameters selected for recording The more parameters selected the shorter the total time of recording If you are recording events like max min average peak or energy only there is no time limit for recording The tota...

Page 19: ...ncel and return to the RECORD selection screen press NO middle right black button Previously recorded data will remain in the memory To start a recording session press START Remember all previously recorded data will be lost To terminate the recording session press STOP button NOTE YOU WILL TERMINATE THE RECORDING SESSION BY PRESSING ON OFF BUTTON At this stage you can view data being recorded by ...

Page 20: ... the scroll feature of the charts is not available All features will be available when the recording session is complete Step 1 To view data simply push the VIEW button A black selection box indicates that the parameter was recorded and can be viewed A blank selection box indicates that the parameter was NOT recorded and cannot be viewed Depending on the phase set up you will see one of the four s...

Page 21: ...ve blinking cursor to the parameter If you selected parameter other than POWER press ENTER Press VIEW button to return to the You will be able to scroll throughout selection screen the chart only if recording was finished R Viewing Data cont d For events max min ave peak or energy the numerical value wil be displayed For example For RMS value a chart will be displayed For example ENTER ENTER ...

Page 22: ...pparent Power PF Power Factor Press VIEW button to return to the selection screen Here is an example for single phase system Notice that if you are viewing data while recording you can t scroll through the data This feature will be available after the recording is finished R Viewing Data Page 22 ...

Page 23: ...esired parameter move blinking cursor to the parameter If you selected RMS the chart on Page 21 will be shown If you selected POWER the parameters are going to be displayed the same way as on Page 22 If you selected events max min ave peak or energy the total and interval selection is available explained in the next section ...

Page 24: ...Page 24 R Viewing Data cont d If you selected DEMAND available for three phase set up only the peak and interval selection is available explained in the next section ...

Page 25: ...r entire recording session this value is NOT GOING to be overwritten if the DM II is looping Interval Points on the graph represent event values for each of the time intervals these values ARE going to be overwritten if the DM II starts looping TOTAL EVENT INTERVAL ...

Page 26: ... cont d Page 26 DEMAND will show the Peak Demand for entire recording session this value is not going to be overwritten if the DM II starts looping For Peak Demand definition refer to Page 18 What is Energy on Demand ...

Page 27: ... of the RMS voltage or current which occurred during the recording time RMS avg Average RMS value of voltage or current which is a sum of all RMS measured values divided by the number of values PEAK max The greatest instantaneous value of voltage or current the highest point of the sinusoid 1ø Power Power in the selected phase 1ø Energy Energy in the selected phase 3ø Power Total power in all phas...

Page 28: ...ng heat light motion machine output etc Apparent Volt Amperes S VA The total power required to be generated to provide the desired work ing power output Reactive Volt Amperes Q VAR The non working or phantom power that is needed to charge capacitors and magnetize inductors i e reactive power to sustain electromagnetic fields Vrms ΣV 2 n n P ΣVrmsn Irmsn COS θDIFFn n Q ΣVrmsn Irmsn sin θDIFFn n S V...

Page 29: ...idal systems Power factor can be leading or lagging depending on the sign of the reactive Volt Amperes Q VAR The following table summarizes Power Factor Sign of Q Type of Load Current Voltage Relationship Lagging Positive Inductive Current Lags Voltage Leading Negative Capacitive Current Leads Voltage DM II Total Power Quantities P Q S PF for 3Ø Systems 3Ø 3W Delta and 3Ø 4W Wye configurations inc...

Page 30: ...Step 2 Remove batteries from battery compartment Step 3 Install new batteries Use six D size alkaline batteries Always replace all six batteries at the same time observe polarity symbols on battery holder Step 4 Replace battery cover and tighten two lid cover screws COVER SCREWS R Battery Replacement ...

Page 31: ... module 3 Rotate the fuse holder so that the desired voltage setting is aligned with the window Slide the fuse holder back into the compartment until it snaps into place 4 Snap the fuse compartment door back into place Fusing The fuse holder accepts the 0 25A 250V 1 4 1 4 x 1 1 4 5 x 20mm fuse WARNING For continued protection against fire hazard replace only with the same type and rating of fuse a...

Page 32: ...ms AC Current measurements True RMS 1 to 1000 Arms with four supplied DM CTs Accuracy Voltage measurements 1 of reading 3 LSDs Current measurements 1 of reading 3 LSDs Voltage and Current measurement selections True RMS voltage and current RMS max RMS min RMS avg Peak max Power measurement capabilities Real power P watts Apparent Volt amperes S VA Reactive Volt amperes Q VAR True Power Factor tPF ...

Page 33: ...ay data analysis and report generation User selectable baud rates of 9600 19200 and 38400 baud Power Requirements AC line voltage with battery backup operation The ON OFF dual color LED indicates the unit s power source green indicates AC line power red indicates battery power Safety Standards Designed to meet UL3111 1 CE LVD EMC EMI Case Material Injection molded flame retardant ABS911 rugged wat...

Page 34: ...dows 95 98 NT 2000 Pentium Processor or higher 8 MB RAM minimum 16 MB recommmended ACCESSORIES REPLACEMENTS Test Leads Alligator Clips set of four DVL 4 Current Transducer Black DM CT BL CE Current Transducer Red DM CT R CE Current Transducer Blue DM CT B CE Current Transducer Yellow DM CT Y CE Output Lead RS 232 Power Cord PC 4 DM II View PRO 3 5 Discs set of 2 DISC II Flexible Current Transducer...

Page 35: ...NOTES ...

Page 36: ...Telephone 305 757 8811 Fax 305 757 2153 www amprobe com ...

Page 37: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information AMPROBE DM II PRO ...

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