Kusam-meco KM 255 Manual
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Kusam-meco KM 255 Manual

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DIGITAL
MULTIMETER
MODEL - KM 255 / KM 257
AUTO
MAX MIN
H
C
8888
LoZ
Hz
SELECT
RANGE
REL
REC
Temp
mV
V
V
OFF
Auto
Check
(Loz)
JACK
mA
A
JACK
COM
A
MAX 0.6A
MAX 8A
HBC FUSED
HBC FUSED
300V CAT IV
600V CAT III
1kV CAT II
PC-Comm
M
kHz
F
mVA
EF
HOLD
CREST
A
mA
A
Temp
V
!
we damage them or "burn them out". If you incorrectly

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Summary of Contents for Kusam-meco KM 255

  • Page 1 DIGITAL we damage them or “burn them out”. If you incorrectly MULTIMETER MODEL - KM 255 / KM 257 AUTO MAX MIN 8888 SELECT RANGE HOLD CREST Temp Auto Check (Loz) Temp JACK JACK MAX 0.6A MAX 8A HBC FUSED...

  • Page 2: Table Of Contents

    1) SAFETY TABLE OF CONTENTS Title Page Terms in this manual WARNING : Identifies condition and actions that Safety..............01 could result in serious injury or even death to the user. Cenelec Directives..........04 CAUTION : identifies conditions and action that General Specifications........04 could cause damage or malfunction in the instrument.
  • Page 3 Per IEC61010-1 2nd Ed. (2001) Measurement Warning Category To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. To avoid Measurement Category IV (CAT IV) is for electrical shock hazard, observe the proper safety measurements performed at the source of the low- precautions when working with voltage above voltage installation.

  • Page 4: Cenelec Directives

    2) CENELEC DIRECTIVES Pollution Degree : 2 The instruments conforms to CENELEC Low-voltage Safety : Double insulation per IEC61010-1 2nd Ed. directive 2006/95/EC and Electromagnetic EN6100-1 2nd Ed., UL61010-1 2nd Ed. & compatibility directive 2004/108/EC CAN / CSA C22.2 No. 61010.1-0.92 to Category II 1000V, CAT III 600V and CAT IV 300V AC &...

  • Page 5: Electrical Specifications

    Low Battery : Blow approx. 2.3V 4) Electrical Specification Accuracy is given as ±(%of reading digits + number of digits) or otherwise specified @ 23°C±5°C and Power Supply: 1.5V AAA Size battery x 2 less than 75% R.H. True RMS model KM257 ACV & ACA accuracies Power Consumption (typical): 3.5mA are specified from 5% to 100% of range or other- wise specified .
  • Page 6 AutoCheck _ACV Resistance Range Accuracy Range Accuracy Resolution Resolution 600.0 50Hz / 60Hz ±(1.4%rdg+5dgts) 6.000 K 1.000V~1000V 1mV~1V ±(0.5%rdg + 4dgts) 60.00 K AutoCheck Lo-Z ACV Thershold : >1V nominal 600.0 K AutoCheck Lo-Z ACV input Impedance: ±(0.7%rdg + 4dgts) 6.000 M Initially approx.
  • Page 7 Capacitance AC Current Range Accuracy Resolution Range Accuracy Resolution 50Hz ~ 400Hz 60.00 nF ±(2.0%rdg + 5dgts) 600.0 100 nA 600.0 nF 6000 6.000 60.00 mA ±(1.5%rdg + 5dgts) 60.00 ±(1.0%rdg + 3dgts) 600.0 mA 600.0 6.000 mA ±(2.0%rdg + 5dgts) 3000 8.00 Accuracies with film capacitor or better...

  • Page 8: International Electrical Symbols

    Temperature 5) INTERNATIONAL ELECTRICAL SYMBOLS Range Accuracy Caution ! Refer to the explanation in this ±(0.3%rdg + 3dgts) -50°C ~ 1000°C Manual ±(0.3%rdg + 6dgts) -58°F ~ 1832°F K Type Thermocouple range & accuracy not included. Caution ! Risk of electric shock Supplied Thermocouple suitable for measurement upto 250°C.

  • Page 9: Product Description

    6) PRODUCT DESCRIPTION Analog bar-graph Note: Top of the line model is used as representative The analog bar graph provides a visual indication for illustration purposes. Please refer to your of measurement like a traditional analog meter respective model for function availability. needle.
  • Page 10 1) Overheated transformers, generators and CMRR (Common Mode Rejection Ratio) motors to burn out faster than normal Common mode voltage is voltage present on both the COM and VOLTAGE input terminals of a DMM, 2) Circuit breakers to trip prematurely with respect to ground.

  • Page 11: Operation

    AutoCheck mode 7) OPERATION CAUTION This innovative AutoCheck feature automatically B e f o r e a n d a f t e r h a z a r d o u s v o l t a g e selects measurement function of DCA, ACV or measurements, test the voltage function on a Resistance ( ) based on the input via the test...
  • Page 12 *As Hazardous-Alter : When making resistance DCV, ACV & Line Frequency functions measurement in AutoCheck mode, an unexpected Press the Hz push-buttion for one second or more display of voltage readings alters you that the object to activate or to exit Hz. under test is being energized.
  • Page 13 Note: Resistance, Continuity , Capacitance, Diode test functions *Input sensitivity varies automatically with function range selected before activating the Hz function. Press the SELECT button momentarily to select the 6V function range has the highest and the 1000V subject functions in sequence. Last selection will be range has the lowest.
  • Page 14 CAUTION DCmV, ACmV, Temperature °C & °F functions Press the SELECT button momentarily to select Discharge capacitors before making any the subject functions in sequence. Last selection measurement. Large value capacitors should be will be saved as power up default for repeat discharged through an appropriate resistance load.
  • Page 15 Note : Be sure insert the banana plug K-type temperature bead probe Bkp60 with correct + - polarities. You can also use a plug adapter Bkb32 (Optional purchase) with banana AUTO AUTO pins to K-type socket to adapt other standard 2 08 K type mini plug temperature probes.
  • Page 16 Electric Field EF-Detection Non-Contact EF-Detection : At Volt or Current funcion, press the EF button for An antenna is located along the top-right end of the one second or more and release to toggle to mater, which detects electric field surrounds current EF-Detection feature.
  • Page 17 5ms CREST capture mode Manual or Auto- ranging Press the RANGE button momentarily to select Press CREST button momentarily to activate manual-ranging, and the meter will remain in the CREST (instantaneous Peak-Hold) mode to capture range it was in, the LCD AUTO turns off.

  • Page 18: Maintenance

    Trouble Shooting Disabling Auto-Power-Off Press the SELECT button while turning the meter If the instrument fails to operate, check battery, on to temporarily disable the Auto-Power-Off (APO) fuses, leads, etc., and replace as necessary. feature. Turn the rotary switch OFF and then back Double check operating procedure as described in on to resume.

  • Page 19: Test Certificate

    Re-fasten the screw. The instrument has been calibrated by using equipment which has already been calibrated to standards traceable to national standards. KM 255 / 257 MODEL NO. __________ SERIAL NO. ___________ DATE: ___________ ISO 9001 KUSAM-MECO...

  • Page 20: Warranty

    All transaction are subject to Mumbai Jurisdiction. 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 Email : kusam_meco@vsnl.net Website : www.kusamelectrical.com, www.kusam-meco.co.in...

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Km 257

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