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LIST OF PRODUCTS
* Digital Multimeter
* Digital AC & AC/DC Clampmeter
* AC Clamp Adaptor
* AC/DC Current Adaptor
* Thermo Anemometer
* Thermo Hygrometer
* Distance Meter
* Digital Lux Meter
* Network Cable Tester
* Power Factor Regulator
* Earth Resistance Tester
* Digital Panel Meters
* DC Power Supplies
* High Voltage Detectors
* Calibrators
* Gas Detectors
* Frequency Counter
* Function Generator
* Phasing Sticks
* Battery Tester
* Waterproof Pen Testers
* Solar Power Meter
* EMF Detector
* Discharge Rods(400 KV)
* Wood, Paper & Grain Moisture Meter
* Transistorised Electronic Analog & Digital Insulation
Resistance Testers(upto 15 KV)
* Digital Sound Level Meter & Sound Level Calibrator
* Digital contact & Non-contact Type Tachometer
* Digital Non-contact (infrared) Thermometer/ Thermal Imaging Camera
* Maximum Demand Controller/Digital Power Meter
* Digital Hand Held Temperature Indicators
Email : sales@kusam-meco.co.in
Website : www.kusamelectrical.com
®
AN ISO 9001:2015 COMPANY
TRMS DIGITAL MULTIMETER
MODEL - KM 2257
OPERATION MANUAL
®
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Related Manuals for Kusam-meco KM 2257
Summary of Contents for Kusam-meco KM 2257
- Page 1 * AC Clamp Adaptor * AC/DC Current Adaptor TRMS DIGITAL MULTIMETER * Thermo Anemometer * Thermo Hygrometer MODEL - KM 2257 * Distance Meter * Digital Lux Meter * Network Cable Tester * Power Factor Regulator * Earth Resistance Tester...
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Page 2: Table Of Contents
TABLE OF CONTENTS TAKE MEASUREMENTS CAREFULLY AND YOU’LL SPARE YOUR METER AND YOURSELF, SOME PAIN. Nearly every electrical engineer has a hand held Multimeter. We TITLE PAGE sometimes take them for granted, until we damage them or “burn them out”. If you incorrectly connect your DMM to a circuit or have the DMM on SAFETY................1 wrong setting, you damage the meter and possibly hurt yourself. -
Page 3: Safety
Only use the test probe assembly provided with the meter or a 1. SAFETY UL Listed test probe assembly with the same meter ratings or better. Optional offer premium test probe assembly using Terms in this manual silicone lead wire insulation, at agent’s discretion, is equipped with white inner insulation layers as wear indicators. -
Page 4: Cenelec Directives
4. SPECIFICATIONS : similar points) of the low-voltage MAINS installation. Examples are measurements on MAINS CIRCUITS of household appliances, portable tools and similar equipment. GENERAL SPECIFICATIONS : Display: 3-5/6 digits 6,000 counts. Update Rate: Marking of Electrical and Electronic Equipment (EEE). Do not dispose of this product as unsorted municipal 3-5/6 digits: Max 5 per second nominal waste. - Page 5 Overload Protections: µA & mA: 0.63A/1000V DC/AC rms, IR 30kA, F fuse or better Special Features: A: 12A/600V, IR 50kA for Vdc & 100kA For Vac, F fuse; or ● AutoHold 11A/1000V DC/AC rms, IR 30kA, F fuse; or better ●...
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Page 6: Electrical Specifications
ELECTRICAL SPECIFICATIONS : VFD_ACV (with Low Pass Filter ) Accuracy is given as ± (% of reading digits + number of digits) or RANGE ACCURACY otherwise specified @ 23°C ± 5°C. 10Hz ~ 100Hz (fundamental) ACV & ACA accuracies are specified from 1% to 100% of range 600.0V 1.0% + 3d or otherwise specified. - Page 7 AutoV_DCV RANGE ACCURACY 50Hz ~ 60Hz 6.000V, 60.00V, 600.0V 1.0% + 4d Overload Protection: 1100Vrms for AC; 660V for DC 1) Not specified at <1.5VDC Threshold: > +1.5VDC or < -1.5VDC nominal Input Impedance: Initially approx. 2.1kΩ, 164pF nominal; Impedance increases abruptly within a fraction of a second as display voltage is above 50V (typical).
- Page 8 LINE FREQUENCY AutoHold Real-Read Accuracy: Specified accuracy ± 50 digits AVAILABLE TRIGGER RANGE SENSITIVITY Availability: Resistance, Continuity, LoZ AutoV, VFD Volts, Voltage and FUNCTION LEVEL (SINE RMS) Current functions 10Hz ~ 50kHz TEMPERATURE ACV / DCV 10Hz ~ 1kHz 1)2) RANGE ACCURACY 400V...
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Page 9: Product Description
5) PRODUCT DESCRIPTION 6) OPERATION This user's manual uses only representative model(s) for illustrations. Note: Please refer detailed specifications for function availability to each model. ● Before and after hazardous voltage measurements, test the voltage function on a known source such as line voltage to determine proper meter functioning. - Page 10 Note: ●EF-Detection defaults to “EF-H”, the High sensitivity, when it is ready. ●Ghost-voltage Buster: Ghost-voltages are unwanted stray signals If it is too sensitive for your applications, short-press the (LEVEL) button coupled from adjacent hard signals, which confuse common multimeter to toggle to EF-L, the Low sensitivity.
- Page 11 ~Hz Line Frequency This function is only available to the ACV, VFD-ACV, DCV, µA, mA, & A functions. Long press the ~Hz button to toggle to the Line Frequency function. The input sensitivity varies according to the available function range selected on which the ~Hz function is activated. Trigger Level 0 is the highest sensitivity while Level 3 is the lowest.
- Page 12 ● Resistance; BeepLit Continuity; BeepLit Diode; ● BeepLit Continuity Capacitance This function is having improved convenience for checking wiring Inputs are made via the test lead terminals V-COM. Press the SELECT connections and operation of switches. Resistance threshold is being button momentarily to select the subject functions in sequence.
- Page 13 BeepLit Diode ● Reading indication: Forward voltage drop (forward-biased) for a good silicon diode is between 0.400V to 0.900V. A higher reading indicates a leaky diode (defective). A zero reading indicates a shorted diode (defective). An over-range display indicates an open diode (defective). Reverse the test leads connections (reverse-biased) across the diode.
- Page 14 AutoHold Real-Read™ MAX/MIN/AVG Record mode Short-press the REC button to activate MAX/MIN/AVG recording mode. AutoHold feature displays the last latched stable-reading for later viewing LCD “ MAX AVG MIN” turn on. The meter beeps when a new MAX when the test leads are removed from the test points after a significant- (maximum) or MIN (minimum) reading is updated.
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Page 15: Maintenance
Accuracy and Calibration Power-on Options Accuracy is specified for a period of one year after calibration. Periodic ● Disabling iAPO calibration at intervals of one year is recommended to maintain meter Press-and-hold the SELECT button while powering on the meter can accuracy. -
Page 16: 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 TRMS DIGITAL MULTIMETER goods.
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