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OMEGA

HHM21

Digital Multimeter

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Summary of Contents for HHM21

Page 1: ...OMEGA HHM21 Digital Multimeter ...

Page 2: ...ll 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 Riverbend Technology Centre Northbank Irlam Tel 420 69 6311627 FAX 420 69 6311114 Manchester M44 5EX England e mail czech omega com Tel 44 161 777 6611 FAX 44 161 777 6622 France 9 rue Denis Papin 781...

Page 3: ...across 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 circuit Small amounts of current can be dangerous 4 Use caution when working above 60V dc or 30V ac rms Such voltages pose a shock hazard 5 When Using the probes keep your fingers behind the finger gua...

Page 4: ...e 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 Safety According to EN61010 1 protection class II overvoltage category CAT II 600V pollution degree 2 Auto Power off 30minutes after rotary switch and push button no changes except MAX MIN function Power single standard 9 volt battery Battery life 200 ho...

Page 5: ...nce 10MW Overload protection 600VDC or AC rms AC VOLTS 50Hz 2KHz Ranges 430mV 4 3V 43V 430V 600V Resolution 100µV Accuracy Input impedance 10MW Overload protection 600VDC or AC rms Range 50Hz 100Hz 100Hz 500Hz 500Hz 2KHz 430mV 1 5 rdg 3dgts N A 4 3V N A 43V 430V 600V 1 5 rdg 3dgts 0 75 rdg 2dgts ...

Page 6: ...mA 430mA 10A Resolution 100nA Accuracy 1 0 rdg 2dgts on µA mA ranges 2 5 rdg 2dgts on 10A range Burden voltage 1 4V on all ranges execpt 1 5V on 10A range Input protection 0 5A 250V fast blow ceramic fuse 10A 600V fast blow ceramic fuse RESISTANCE Ranges 430W 4 3KW 43KW 430KW 4300KW 43MW Resolution 100mW Accuracy 0 3 rdg 3dgts on 430W range 0 3 rdg 2dgts on 4 3KW to 4300KW ranges 1 5 rdg 4dgts on ...

Page 7: ...EST Accuracy 3 0 rdg 3dgts Resolution 1mV Test current 1 0 0 6mA Test voltage 3 5V TEMPERATURE Ranges 20 C to 1300 C 4 F to 2372 F Resolution 1 C 2 F Accuracy 2 0 rdg 3dgts on 20 C to 500 C 3 0 rdg 2dgts on 500 C to 1300 C 2 0 rdg 6dgts on 4 F to 932 F 3 0 rdg 4dgts on 932 F to 2372 F ...

Page 8: ...you press RANGE button the range and the input range annunciator increments and a new value is displayed To exit the Manual Range mode and return to autoranging press and hold down RANGE button for 2 seconds The AUTO annunciator turns back on MAX MIN Button Press MAX MIN to enter the MAX MIN AVG Recording mode manual range only The RECORD annuciator turns on and the automatic power off feature is ...

Page 9: ... D D D D Button Press RELD D D D D to enter the Relative mode zero the display and store the displayed reading as a reference value The relative mode annunciator D D D D D is displayed Press RELD D D D D again to exit the relative mode D D D D DSET Button The Relative value can also be changed by the user To set the Relative value press the D D D D DSET to enter the D D D D DSET mode relative valu...

Page 10: ...ied Current Measurements 1 Set the Function Range switch to the desired current range and press the A toggle button to select AC or DC 2 For current measurements less than 430mA connect the red test lead to the µAmA jack and the black test lead to the COM jack 3 For current measurements of 430mA or greater connect the red test lead to the 10A jack and the black test lead to the COM jack 4 Remove p...

Page 11: ...ironment eg radio telephone or similar 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 Touch probes to the diode A forward voltage drop is about 0 6V typical for a silicon diode 5 Reverse probes If the diode is good 1 OL is displayed If the diode is shorted 00...

Page 12: ...on 2 Push the F C key select the desired F C scale 3 Connectatypekthermocoupletothejackontheinstrument Placetheprobe or thermocouple tip on or in the material to be measured and take the temperature reading directly from the display WARNING Remove test leads being measured 10 ...

Page 13: ... 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 10A jack For access to fuses remove the four screws from the back of the meter and lift off the battery cover and case Replace F1 only with the original type 0 5A 250V fast acting ceramic fuse Replace F2 only w...

Page 14: ...ity 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 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...

Page 15: ...ne Paddlewheel Systems þ Totalizers Batch Controllers pH CONDUCTIVITY þ pH Electrodes Testers Accessories þ Benchtop Laboratory Meters þ Controllers Calibrators Simulators Pumps þ Industrial pH Conductivity Equipment DATA ACQUISITION þ Data Acquisition Engineering Software þ Communications Based Acquisition Systems þ Plug in Cards for Apple IBM Compatibles þ Datalogging Systems þ Recorders Printer...

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