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Summary of Contents for Omega HHM15

  • Page 1 OMEGA...
  • Page 2 European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
  • Page 3: Safety Information

    SAFETY INFORMATION The following safety information must be observed to insure maximum personal safety during the operation at this meter: 1. Do not use the meter if the meter or test leads look damaged, or if you suspect that the meter is not operating properly. 2.
  • Page 4: Specifications

    SPECIFICATIONS Display: 3¾ digit liquid crystal display (LCD) with a maximum reading of 3999. Polarity: Automatic, positive implied, negative polarity indication. Overrange: (OL) or (-OL) is displayed. Zero: Automatic. Low battery indication: the " " is displayed when the battery voltage drops below the operating level.
  • Page 5 DC VOLTS Ranges: 400mV,4V,40V,400V,1000V Resolution: 100µV Accuracy: ±(0.5%rdg + 1dgt) Input impedance: 10MW Overload protection: 500VDC or AC rms on 400mV range 1000VDC or 750VAC rms on all other ranges AC VOLTS (50Hz - 500Hz) Ranges: 400mV,4V,40V,400V,750V Resolution: 100µV Accuracy: ±(1.0%rdg + 4dgts) on 400mV to 400V ranges ±(2.0%rdg + 4dgts) on 750V range Input impedance: 10MW Overload protection: 500VDC or AC rms on 400mV range...
  • Page 6 AC CURRENT (50Hz-500Hz) Ranges: 40mA,400mA,10A Accuracy: ±(1.5%rdg + 4dgts) on mA range ±(3.5%rdg + 4dgts) on 10A range Input protection: 0.5A / 250V fast blow fuse 10A / 600V fast blow ceramic fuse RESISTANCE Ranges: 400W ,4KW ,40KW ,400KW ,4000KW ,40MW ,4000MW Accuracy: ±(0.8%rdg + 4dgts) on 400W range ±(0.8%rdg + 2dgts) on 4KW to 4MW ranges ±(3.0%rdg + 4dgts) on 40MW range...
  • Page 7 CAPACITANCE Ranges: 4nF,40nF,400nF,4µF,400µF Accuracy: ±(5.0%rdg + 10dgts) on all ranges ±(8.0%rdg + 10dgts) above 100µF Test frequency: 4nF,40nF ranges 1kHz 400nF, µF ranges 270Hz 400µF range 27Hz INDUCTANCE Ranges: 4mH,40mH,400mH,4H,40H Accuracy: ±(5.0% rdg + 20dgts) on 4mH range ±(5.0% rdg + 10dgts) on other ranges Test frequency: 4mH, 40mH ranges 1kHz 400mH 4H ranges 270Hz 40H range 27Hz...
  • Page 8 LOGIC TEST Threshold: Logic Hi (2.8 ± 0.8V) Logic Lo (0.8 ± 0.5V) Indication: 40 msec beep at logic low Frequency response: 20MHz Detectable pulse width: 25nS Pulse limits: >30% & <70% duty Overload protection: 500VDC or AC rms TRANSISTOR hFE Ranges: 0 - 1000 Base current: 10µAdc approx.
  • Page 9: Operation

    OPERATION Before taking any measurements, read the Safety Information Section. Always examine the instrument for damage, contamination (excessive dirt, grease, etc.) and defects. Examine the test leads for cracked or frayed insulation. If any abnormal conditions exist do not attempt to make any measurements.
  • Page 10 Current Measurements 1. Set the Function/Range switch to the desired current range and press the "AC/DC" switch toggle between to the desired current type. 2. For current measurements less than 400mA, connect the red test lead to the mA jack and the black test lead to the COM jack. 3.
  • Page 11 5.When using 4000MW Range ; The 4000MW range has a fixed 20±1-count offset in the reading. When the test leads are shorted together in this ranges, the meter will display 020. The residual reading must be subtraceted from the reading obtained in step 4 when this range is used. For example, when measuring 1100MW on the 4000MW range, the display will read 1120, from which the 20 residual is subtracted to obtain the actual resistance of 1100MW .
  • Page 12 Capacitance & Inductance Measurements 1. Set the Function/Range switch to the desired F (capacitance) or H(inductance) range. 2. Never apply an external voltage to the Cx Lx sockets. Damage to the meter may result. 3. Insert the capacitor or inductance leads directly into the Cx Lx socket. 4.
  • Page 13 Diode Tests 1. Connect the red test lead to the "VW " jack and the black test lead to the "COM" jack. 2. Set the Function/Range switch to the " " position. 3. Turn off power to the circuit under test. 4.
  • Page 14: Maintenance

    MAINTENANCE WARNING Remove test leads before changing battery or fuse or performing any servicing. Battery Replacement Power is supplied by a 9 volt "transistor" battery. (NEDA 1604, IEC 6F22). The " " appears on the LCD display when replacement is needed. To replace the battery, remove the two screws from the back of the meter and lift off the battery case.
  • Page 15 CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a "Basic Component" under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any...
  • Page 16: Data Acquisition

    Where Do I Find Everything I Need for Process Measurement and Control? OMEGA...Of Course! TEMPERATURE DATA ACQUISITION PRESSURE/STRAIN AND FORCE HEATERS FLOW/LEVEL ENVIRONMENTAL MONITORING AND CONTROL pH/CONDUCTIVITY M-2887/0799...

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