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Kusam-meco KM 2777 Operation Manual

Kusam-meco KM 2777 Operation Manual

Ac / dc trms clamp-on multimeter with vfd, ef-detection & pc interface

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An ISO 9001:2008 Company
SPECIAL FEATURES :
TM
AutoCheck Voltage & Ohms
VFD-V & VFD-Hz function
5ms CREST-MAX capture mode (Peak Hold)
Autoranging Relative -Zero mode
Display Hold function
GENERAL SPECIFICATIONS :
Sensing : TRMS sensing
Jaw Opening : 55mm max.
Display : 3-5/6 digits 6000 counts &
3½ digits 1,999 counts for Hz.
Update Rate : 5 per second nominal
Polarity : Automatic
Low Battery : Below approx 2.4V
Operating Temperature : 0 C to 40 C
Relative Humidity : Maximum 80% R. H.
o
for temperature upto 31 C decreasing linearly
to 50% Relative Humidity at 40 C
Storage Temperature : -20 C to 60 C,
< 80% R.H. (With battery removed)
SAFETY :
Double insulation per IEC/EN61010-1 2 Ed.,
nd
UL61010-1 2 Ed., & CAN/CSA C22.2
No.61010.1-0.92 to Category
CAT IV 1000V AC & DC.
Transient Protection : 12 kV (1.2/50 s surge)
Overload Protection :
Clamp-on jaws : 2000A rms continuous
" + " & COM Terminals (all other functions) :
1000V rms.
Accuracy is ± (% readings digits + number of digits) or otherwise specified, at 23 C ± 5 C & less than 75% R.H.
True RMS Model KM 2777 voltage accuracies are specified from 5% to 100% of range or otherwise specified.
ACA CURRENT(Clamp on)
Range
Resolution
50Hz – 60Hz
200.0
A
100 mA
0 ~ 500
A
1
A
500~2000 A
1
A
40Hz~50Hz & 60Hz~400Hz
200.0
A
100 mA
0 ~ 500
A
1
A
500~1000 A
1
A
1000~2000 A
1
A
True RMS Crest Factor :
< 1.4:1 at full scale & <2.8:1 at half scale
1)
Induced error from adjacent current carrying conductor :
<0.1A/A
D:\Chhaya\My Documents\Chhaya\backup\catlog\New cat\KM 2776-KM 2777.cdr
®
AC / DC TRMS Clamp-On Multimeter with
EF-Detection (NCV)
Backlight LCD Display
Auto Power Off
Diode Test & Continuity Test
PC Interface (Optional)
Altitude : Operating below 2000m
Temperature Coefficient : nominal 0.15 x (specified accuracy) / °C @
Power supply : Standard 1.5V AAA Battery x 2.
Power Consumption : Typical 14mA for Current function,
APO Timing : Idle for 34 minutes
o
o
APO Consumption : 10 A typical
Dimension : 264(L) x 97(W) x 43(H) mm
Weight : Approx. 608gm.
o
Accessories : Test leads (pair), user's manual, Bkp60 banana plug
o
o
Optional Accessories : USB interface kit BRUA-19X,
nd
Pollution degree : 2
EMC : Meets EN61326-1:2006 (EN55022,EN61000-3-2,EN61000-3-3,
EN61000-4-2, EN61000-4-3, EN61000-4-4,EN61000-4-5,EN61000-4-6,
EN61000-4-8,EN61000-4-11)
In an RF field of 3V/m :
Performance above 3V/m is not specified.
ELECTRICAL SPECIFICATIONS : KM 2777
Maximum Crest Factor <1.4:1 at full scale & <2.8:1 at half scale, & with frequency components
within the specified frequency bandwidth for non-sinusoidal waveforms.
DCA CURRENT(Clamp on)
1)
Range
Accuracy
200.0
±(2.0%rdg + 5dgts)
0 ~ 500
±(2.5%rdg + 5dgts)
500~2000 A
±(3.0%rdg + 5dgts)
1 )
Induced error from adjacent current carrying conductor :
<0.1A/A
2 )
Specified with Relative Zero
±(2.5%rdg + 5dgts)
non-zero residual readings, if any.
±(3.0%rdg + 5dgts)
±(3.5%rdg + 5dgts)
Unspecified
VFD, EF-Detection & PC Interface
Model KM 2777 - TRUE RMS SENSING
o
o
o
o
(0 C--18 C or 28 C--40 C), or otherwise specified
& 5.2mA for others.
K-type Thermocouple x 1 & carrying case.
plug to type-K socket plug adaptor
Capacitance function is not specified
Other function ranges : Total Accuracy = Specified Accuracy + 200 digits
Resolution
Accuracy
±(2.0%rdg + 5dgts)
A
100 mA
±(2.0%rdg + 5dgts)
A
1
A
±(2.5%rdg + 5dgts)
1
A
mode applied to offset the
BKB32 banana
Preliminary Data
o
o
DC + ACA CURRENT(Clamp on)
1)2)
Range
Resolution
DC, 50Hz ~ 60Hz
200.0
A
100 mA
2000
A
1
40Hz ~ 50Hz & 60Hz ~ 400Hz
200.0
A
100 mA
0 ~ 1000
A
1
1000~2000 A
1
True RMS Crest Factor :
< 1.4:1 at full scale & <2.8:1 at half scale
1)
Induced error from adjacent current carrying conductor :
<0.1A/A
2 )
Specified with Relative Zero
non-zero residual readings, if any.
Note: All Specification are Subject to change without prior notice.
1)2)
Accuracy
±(3.0%rdg + 8dgts)
A
±(3.5%rdg + 8dgts)
A
Unspecified
A
mode applied to offset the
Contd....2

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Summary of Contents for Kusam-meco KM 2777

  • Page 1 Accuracy is ± (% readings digits + number of digits) or otherwise specified, at 23 C ± 5 C & less than 75% R.H. True RMS Model KM 2777 voltage accuracies are specified from 5% to 100% of range or otherwise specified.
  • Page 2 G-17, Bharat Industrial Estate, T. J. Road, Sewree (W), Mumbai - 400 015. INDIA. Sales Direct : 022 - 24156638. Tel.: 022 -24124540, 24181649 Fax : 022 - 24149659 An ISO 9001:2008 Company Email : kusam_meco@vsnl.net, Website : www.kusamelectrical.com, www.kusam-meco.co.in D:\Chhaya\My Documents\Chhaya\backup\catlog\New cat\KM 2777.cdr...
  • Page 3 ® WHAT IS DC + AC TRUE RMS DC AC TRUE RMS AC True RMS is a term which identifies a DMM that responds accurately to the total effective RMS value regardless of the waveform, and is given by the expression : DC + AC True RMS voltage is the total effective voltage having the same heating value corresponding a DC voltage.
  • Page 4 ® USE TRUE RMS WHEN MEASURING AC WAVEFORMS The waveforms on today’s AC power lines are anything but clean. Electronic equipment such as office computers, with their switching power supplies, produce harmonics that distort power-line waveforms. These distortions make measuring AC voltage inaccurate when you use an averaging DMM.
  • Page 5 * Wood, Paper & Grain Moisture Meter * Transistorised Electronic Analog & Digital Insulation Resistance Testers(upto 10 KV) MODEL - KM 2777 * Digital Sound Level Meter & Sound Level Calibrator * Digital contact & Non-contact Type Tachometer * Digital Non-contact (infrared) Thermometer...
  • Page 6 AC / DC TRMS Clamp-On Multimeter with VFD, EF-Detection & PC Interface MODEL - KM 2777...
  • Page 7: Table Of Contents

    TABLE OF CONTENTS This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the TITLE PAGE NO. instrument in a safe operating condition. If the instrument is used in a manner not specified by the manufacturer, the SAFETY................01 protection provided by the instrument may be impaired.
  • Page 8 INTERNATIONAL ELECTRICAL SYMBOLS Identifies conditions and actions that could result Caution ! Refer to the explanation in this Manual in serious injury or even death to the user. Identifies conditions and actions that could cause Caution ! Risk of electric shock damage or malfunction in the instrument.
  • Page 9: Safety

    í SPECIAL FEATURES: Power supply : Standard 1.5V AAA Battery x 2. í Power Consumption : Typical 14mA for Current function, — AutoCheck Voltage & Ohms & 5.2mA for others. — VFD-V & VFD-Hz function — í APO Timing : Idle for 34 minutes 5ms CREST-MAX capture mode (Peak Hold) —...
  • Page 10: Electrical Specification

    23 C ± 5 C & less than 75% R.H. ±(2.0%rdg + 5dgts) 0 ~ 500 True RMS Model KM 2777 voltage accuracies are specified from ±(2.5%rdg + 5dgts) 500~2000 A 5% to 100% of range or otherwise specified.
  • Page 11 DC VOLTAGE VFD_ ACV (with Low Pass Filter) Range Accuracy Accuracy Resolution Resolution Range 6.000 V 10Hz ~ 20Hz 60.00 V 6.000 ±(0.5%rdg + 5dgts) 600.0 V 100 mV 60.00 ±(4%rdg + 80dgts) 100 mV 1000 V 600.0 Input Impedance : 10MW, 50pF nominal 1000 20Hz ~ 200Hz AC VOLTAGE...
  • Page 12 AUTOCHECK _DCV NON-CONTACT EF-DETECTION Accuracy Bar-Graph Range Resolution Typical Voltage Indication 6.000 20V (tolerance : 10V ~ 36V) 60.00 ±(1.3%rdg + 5dgts) - - - 55V (tolerance : 23V ~ 85V) 100 mV 600.0 - - - - - 110V (tolerance : 59V ~ 600V) 1000 Indication : Bar-graph segments &...
  • Page 13 ~Hz LINE LEVEL FREQUENCY AUTOCHECK _ACV Sensitivity Accuracy Resolution Range Range Function (Sine RMS) 50Hz ~ 60Hz 40Hz ~ 1999Hz 6.000 20 V 40Hz ~ 1999Hz 60.00 ±(1.5%rdg + 5dgts) 100 V 40Hz ~ 1999Hz 100 mV 600.0 600 V 40Hz ~ 1999Hz 1000 1000...
  • Page 14: Product Description

    PRODUCT DESCRIPTION OPERATION 1) Antenna for Non-Contact CAUTION : Before and after hazardous voltage measurements, test EF-Detection the voltage function on a known source such as line voltage to 2) Hand/Finger Barrier to determine proper meter functioning. indicate the limits of safe AutoCheck mode access of the meter This...
  • Page 15 Note: VFD-ACV & ACV functions *Range-Lock and Function-Lock Feature: When a measurement Inputs are made through the test leads terminals. reading is being displayed in AutoCheck mode, press the RANGE or SELECT button momentarily 1 time can lock the range VFD-ACV function is to deal with VFD (Variable Frequency Device) or function it was in.
  • Page 16 580. 2 1338 SELECT SELECT ACA , DCA & DC+ACA (Model KM 2777) functions CAUTION (Application and removal of the Clamp-on meter) For non-invasive current measurements, press the jaw trigger and Input is made through the clamp ± clamp the jaws around conductor(s) of only one single pole of a jaws for non-invasive current circuit for load current measurement.
  • Page 17 Adjacent current-carrying devices such as transformers, motors and conductor wires will affect measurement accuracy. Keep the jaws away from them as much as possible to minimize influence. W Resistance & Continuity Functions Inputs are made through the test leads terminals. Defaults at W RESISTANCE.
  • Page 18 Temperature Function Electric Field EF-Detection In Voltage or Current function, press the EF button for one second or more and release to toggle to EF-Detection feature. The meter displays “E.F.” when it is ready. Signal strength is indicated as a s e r i e s o f b a r - g r a p h segments on the display Live...
  • Page 19 ●Non-Contact EF-Detection: An antenna is located along the top- Backlighted LCD display (Model KM 2777) right end of the clamp jaw, which detects electric field surrounds Press the SELECT button for 1 second or more to toggle the LCD energized conductors. It is ideal for tracing live wiring connections, backlight.
  • Page 20: Maintenance

    blown off (become high impedance) like fuses to protect the user Auto-Power-Off (APO) and the instrument. Most measuring functions through this terminal The Auto-Power-Off (APO) mode turns the meter off automatically will then be open circuit. to extend battery life after approximately 34 minutes of no rotary switch or push button operations.
  • Page 21: Test Certificate

    WARRANTY MUMBAI Each “KUSAM-MECO” product is warranted to be free from defects in TEST CERTIFICATE material and workmanship under normal use & service. The warranty period is one year (12 months) and begins from the date of despatch of AC/DC CLAMP-ON MULTIMETER goods.