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6

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.

Auto Power-down mode

If unused for about 30 minutes, the tester will power-down automatically.
Press RESET button switches to resume power-on mode. If you should
disable Auto Power-down mode, press SELECT buttom when you turn on the
meter.

SELECT Function Button (DC/AC),(

W

W

W

W

W

/

)

The SELECT Function button is Yellow in color. Press it to toggle to the
alternate function (AC, Audible continuity , and Diode ) shown in Yellow on the
meter face.

Hz-% Function Button

Press HZ-% button toggle  between frequency and duty cycle mode.

REL

D

D

D

D

D

 Button

Press (REL

D

) to enter the Relative mode, zero the display, and store the

displayed reading as a reference value. The relative mode annunciator(

D

) is

displayed.
Press (REL

D

) again to exit the relative mode.

Содержание HHM27

Страница 1: ...OMEGA HHM27 Digital Multimeter...

Страница 2: ...l Free in Germany 0800 82 66342 e mail nl omega com e mail germany omega com Czech Republic United Kingdom ISO 9002 Certified ul Rude armady 1868 733 01 Karvina One Omega Drive Hranice Czech Repubic R...

Страница 3: ...cross a high voltage high energy power source when the meter is set up for mA measurement may be very hazardous 3 Turn off power to the circuit under test before cutting unsoldering or breaking the ci...

Страница 4: ...y Storage Temperature 20 C to 60 C 0 to 80 R H with battery removed from meter Accuracy Stated accuracy at 23 C 5 C 75 relative humidity Safety According to EN61010 1 protection class II overvoltage c...

Страница 5: ...tion on 250mV range Input impedance 10MW Overload protection 600VDC or AC rms DC CURRENT Ranges 250 A 2 5mA 25mA 250mA 2 5A 10A Resolution 100nA Accuracy 0 75 rdg 10dgts on 250 A 25mA ranges 0 75 rdg...

Страница 6: ...mic fuse 10A 600V fast blow ceramic fuse RESISTANCE Ranges 250W 2 5KW 25KW 250KW 2500KW 25MW Resolution 100mW Accuracy 0 3 rdg 3dgts on 250W range 0 3 rdg 1dgt on 2 5KW to 2500KW ranges 3 5 rdg 4dgts...

Страница 7: ...tion 500VDC or AC rms FREQUENCY Autoranging Ranges 5 000Hz 50 00Hz 500 0Hz 5 000KHz 50 00KHz 500 0KHz 5 000MHz Resolution 0 001Hz Accuracy 0 05 rdg 2dgts Sensitivity 1 0V rms min on 5 000Hz to 1 000MH...

Страница 8: ...witches to resume power on mode If you should disable Auto Power down mode press SELECT buttom when you turn on the meter SELECT Function Button DC AC W W W W W The SELECT Function button is Yellow in...

Страница 9: ...back on Back Light and Data Hold Switch 2sec H Press this button briefly to activate DATA HOLD mode The H annunciator is displayed Press this button for 2 seconds to turn the Back Light on As this als...

Страница 10: ...r circuit being measured 4 Fordc a signisdisplayedfornegativepolarity positivepolarityisimplied Current Measurements 1 Set the Function Range switch to the desired current range A mA A position 2 To t...

Страница 11: ...ted electromagnetic field environment eg radio telephone or similar Diode Tests 1 Set the Function Range switch to W position 2 Remove power from the equipment under test 3 To toggle the W continity d...

Страница 12: ...ments 1 Set the Function Range switch to the Hz position and then press Hz to toggle between Hz and DUTY mode 2 Connect the red test lead to the VW jack and the black test lead to the COM jack 3 Conne...

Страница 13: ...Function Range switch to the desired range Press RELD to zero the display 2 Dischange capacitors before trying to measure it 3 Connect the lead to the VW jack and the lead to the COM jack 4 Read the...

Страница 14: ...the battery from battery contacts Fuse Replacement If no current measurements are possible check for a blown overload protec tion fuse There are two fuses F1 for the mA jack and F2 for the A jack For...

Страница 15: ...ty or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipmen...

Страница 16: ...rs Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conducti...

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