background image

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.

Max. Hold Feature

Press "MAX" to toggle in and out of the Maximun Hold mode.(holding the
highest reading.) In the MAX mode, the MAX annunciator is displayed and
maximun reading are stored in display register, If the new reading is higher
than the reading being displayed, the higher reading is transferred to the
display register. A "higher" reading is defined as the reading with the higher
absolute value.
The MAX hold function is disable in the frequency count mode, but the MAX
annunciator is still displayed.

Voltage Measurements

1. Connect the red test lead to the "V

W

" jack and the black test lead to the

"COM" jack.

2. Set the Function/Range switch to the desired voltage range and press the

"AC/DC"  switch to toggle between  the desired voltage type. If magnitude
of voltage is not known, set switch to the highest range and reduce until a
satisfactory reading is obtained.

3. Connect the test leads to the device or circuit being measured.
4. For dc, a (-) sign is displayed for negative polarity; positive polarity is implied.

Summary of Contents for HHM23

Page 1: ...OMEGA HHM23 Digital Multimeter...

Page 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...

Page 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...

Page 4: ...minal Operating Environment 0 C to 40 C at 70 relative humidity 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 S...

Page 5: ...es 200mV 2V 20V 200V 600V Resolution 100 V Accuracy 1 0 rdg 4dgts on 200mV to 200V ranges 2 0 rdg 4dgts on 600V range Input impedance 10MW Overload protection 500VDC or AC rms on 200mV range 600VDC or...

Page 6: ...W 2KW 20KW 200KW 2MW 20MW Accuracy 0 4 rdg 4dgts on 200W range 0 4 rdg 1dgt on 2KW to 2MW ranges 3 0 rdg 4dgts on 20MW range Open circuit volts 0 3Vdc 3 0Vdc on 200W range Overload protection 500VDC o...

Page 7: ...g 1dgt Sensitivity 1 0Vrms min Overload protection 500VDC or AC rms Effect Reading 10 1999 LOGIC TEST Threshold Logic Hi 2 8 0 8V Logic Lo 0 8 0 5V Indication 40 msec beep at logic low Frequency respo...

Page 8: ...g being displayed the higher reading is transferred to the display register A higher reading is defined as the reading with the higher absolute value The MAX hold function is disable in the frequency...

Page 9: ...circuit 5 Use caution when measuring 10 amps on 10A range for 60s please waiting for 10 minutes for next measurement of 10 amps for safety reason Resistance and Continuity Measurements 1 Set the Func...

Page 10: ...displayed 6 If the diode is open OL is displayed in both directions 7 If the junction is measured in a circuit and a low reading is obtained with both lead connections the junction may be shunted by a...

Page 11: ...ge switch to the Hz position 2 Connect the red test lead to the VW jack and the black test lead to the COM jack 3 Connect the test leads to the point of measurement and read the frequency from the dis...

Page 12: ...he 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 10A jack For...

Page 13: ...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...

Page 14: ...rs Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conducti...

Reviews: