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34

Subject to change without notice

H M 8 1 1 2 - 3

6 ½ - D i g i t   P r e c i s i o n - M u l t i m e t e r
H M 8 1 1 2 - 3

6½-digit LCD-display (1.200.000 points)

True rms measurements of AC+DC or AC
2-wire- / 4-wire measurements

Resolutions 100 nV, 100 pA, 100 µ

, 0,01 °C / °F

Offset correction

Range selection automatically and manual

10 measurements per second

Measuring time 0,1 sec to 60 sec

Input impedance 

>

1 G

  (0,1 V and 1V

DC

 ranges)

RS-232 Interface (Option: USB, IEEE-488)

HZ42 19’’-rackmont-kit

Precise temperature
measurement with sensor
HZ887

˚C
˚F

RS-232

Содержание HM8112-3

Страница 1: ...6 D I G I T P R E C I S I O N M U L T I M E T E R H M 8 1 1 2 3 Handbuch Manual Deutsch English 99 Washington Street Melrose MA 02176 Fax 781 665 0780 TestEquipmentDepot com...

Страница 2: ...e sufficient to guard against the intrusion of undesired signals This will not cause destruction or malfunction of HAMEG instruments however small deviations from the guranteed specifications may occu...

Страница 3: ...ective Switch Off 37 Power supply 37 Line fuse 37 Power switch 37 Control Elements 38 Concept of the HM8112 3 39 Reference 39 Integrated AD converters 39 Moving average 39 Measurement of alternating v...

Страница 4: ...ments of AC DC or AC 2 wire 4 wire measurements Resolutions 100 nV 100 pA 100 0 01 C F Offset correction Range selection automatically and manual 10 measurements per second Measuring time 0 1 sec to 6...

Страница 5: ...sec 1 to 60 sec Display ranges 120 000 digit 1 200 000 digit 1 A range 100 000 digit 1 000 000 digit Resolution 1 nA 100 pA Accuracy DC 45 Hz 1 kHz 1 kHz 5 kHz 1 year 23 2 C 0 02 0 002 0 1 0 08 0 2 0...

Страница 6: ...1010 1 Please observe all warnings in this manual in order to preserve safety and guarantee operation without any danger to the operator According to safety class 1 requirements all parts of the housi...

Страница 7: ...on our web site http www hameg com Even after expiry of the warranty period please do not hesitate to contact our HAMEG customer service for repairs and spare parts Return Material Authorization RMA...

Страница 8: ...t series 17 MIN min value during a test series 18 MENU Call of the menu acceptance of values entered 19 ESC Leaving the menu without acceptance of the values entered 20 down Switching to a higher rang...

Страница 9: ...e frequency of the signal and the period will be calculated from the frequency This combined measurement of the number of zero points and of the period of a signal allows the measurement of very small...

Страница 10: ...must be chosen PT100 2 wire 4 wire 1 k range PT1000 2 wire 4 wire 10 k range Thermocouple VDC 100 mV range Whether 2 wire or 4 wire measurement has to be selected depends on the PT temperature sensor...

Страница 11: ...up to 600 V true RMS with DC component Direct coupling of the circuit to the instrument and using of the same high precision input divider like VDC The input impedance of the HM8112 3 is 10 G in 100 m...

Страница 12: ...d 100 ms to 60 s Delay 100 ms after change of function Display Dimension C or F Linearisation according to EN60584 V A SENSE SOURCE LO HI max 250Vrms max 850 Vpk max 850 Vpk FUSE 1A F250V CAT II max I...

Страница 13: ...fter switch on a value of 100 ms will be preset Removal of the line voltage will not save a selected value If the measurement function is changed the HM8112 3 assumes the default sampling rate unless...

Страница 14: ...MENU MENU 2 Temp 16 8 4 2 Off default Choice temperature sensor PT100 PT100 Fe CuNi NiCr Ni MENU MENU 3 Sensor K J PT1000 PT100 Comp Fixing the reference for the thermocouple MENU MENU Comp Comp Ext...

Страница 15: ...es If several thermocouples will be attached to the HM8112 3 via a scanner the use of the ice bath would be necessary for each thermocouple To overcome this the ambient temperature or even a source wi...

Страница 16: ...is displayed 7 COM In this menu the baud rate can be chosen Either 9600 baud or 19200 baud are available The remaining interface parameters cannot be changed Interface parameters adjustable Rs Off The...

Страница 17: ...ring connectors Therefore all terminals V SENSE 24 ground 25 and A SOURCE 26 should be disconnected The cover of the fuse holder has to be turned ccw with a screw driver having a suitable blade As the...

Страница 18: ...y of at least 35 ms must be observed then the next command can be sent A transmission of invalid commands is answered with 2D0LF 2D0LF 2D0LF 2D0LF 2D0LF in case of wrong length of the command or void...

Страница 19: ...ty 10 Ohm D Sensor RTD 2WIRE Pt100 Pt1000 E Sensor RTD 4WIRE Pt100 Pt1000 F Sensor TH J K 0 AUTO RANGE OFF ON UP DOWN 1 MEAS Time 10ms 50ms 100ms 500ms 1s 10s 60s UP DOWN 3 Filter CONT 2 4 8 16 0 4 Ma...

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