Table of Contents
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Table of Contents
Related Manuals for Hameg HM8118
Summary of Contents for Hameg HM8118
- Page 1 HM8118 Programmable LCR-Bridge User Manual...
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Page 2: Declaration Of Conformity
Our tests for conformity are based upon the rele- vant norms. Whenever different maximum limits are optio- nal Hameg will select the most stringent ones. As regards emissions class 1B limits for small business will be ap- plied. As regards susceptibility the limits for industrial en- vironments will be applied. -
Page 3: Table Of Contents
Content Content Important Notes ..... . . 40 Menu Function SYST ......58 Symbols . -
Page 4: Important Notes
Important Notes 1 Important Notes Safety This instrument was built in compliance with VDE 0411 part 1, safety regulations for electrical measuring instru- ments, control units and Iaboratory equipment. It has Symbols been tested and shipped from the plant in safe condition. It is in compliance with the regulations of the European standard EN 61010-1 and the international standard IEC 61010-1. -
Page 5: Ambient Conditions
Only original parts may be used for replacing parts Use the measuring instrument only with original HAMEG measur- relevant to safety (e.g. power switches, power transform- ing equipment, measuring cables and power cord. Never use in- ers, fuses). -
Page 6: Product Disposal
Important Notes 3. Cells or batteries must not be short-circuited. Cells or batteries must not be stored in a box or in a drawer where they can short-circuit each other, or where they can be short-circuited by other conductive materials. Cells and batteries must not be removed from their original packaging until they are ready to be used. -
Page 7: Description Of The Operating Elements
R und ‘Quality factor‘ Q resp. entering numeric SHORT – Activating the SHORT calibration value 5 LOAD – Activating the LOAD calibration 8 10 15 14 16 12 11 13 18 17 19 Fig. 2.1: Front panel of HM8118... - Page 8 Back panel of HM8118 TRIG. INPUT (BNC socket) – Trigger input for external trigger BIAS FUSE (Fuse holder) – Fuse for external voltage input ext. BIAS Fig. 2.2: Back panel of HM8118...
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Page 9: Introduction
As the instrument is set to automatic mode, the measure- ❙ 1 x HAMEG 280 µH inductor (not contained in shipment) ment function will be automatically switched to function ❙ 1 x HAMEG 100 kΩ resistor (not contained in shipment). -
Page 10: First-Time Operation
Prior to connecting the instrument to the mains, check The HM8118, upon connection of the resistor, automat- whether the mains voltage conforms to the mains voltage ically changed the internal equivalent circuit from series range specified on the rear panel. -
Page 11: Line Frequency
Measurement Principle individual capacities, inductances and impedances. This The LCR meter HM8118 is not a traditional Wien, Maxwell can easily cause some misunderstandings especially with or Thomson measurement bridge. Rather, when connec- coils (magnetic field, eddy currents, hysteresis, etc.) -
Page 12: Measurement Accuracy
❙ The measurement frequency. as indicated in the data sheet pertains only to the base ac- curacy of the HM8118 bridge. The base accuracy only indi- As an example, a 10 pF capacitator with an impedance of cates the general measurement uncertainty of the instru- 15 MΩ... -
Page 13: Setting Of Parameters
Setting of Parameters 5 Setting of The values of the component set in into the formula: 15 MΩ Accuracy = 0,2% + Parameters @1kHz 1,5 GΩ 15 x 10 Ω Accuracy = 0,2% + @1kHz 1,5 x 10 Ω 15 Ω Genauigkeit = 0,2% + @1kHz... -
Page 14: Measurement Value Display
Before confirming the parameter, you can delete the value that has been entered incorrectly by pressing the The values measured with the LCR bridge HM8118 can be key. The ESC key allows you to cancel the operation to en- shown on the LCD display in three different versions: ter parameters. -
Page 15: Reference Value (Ref_M, Ref_S)
It is recommended to primarily use the ma- proximately 10% prevents the instrument from constantly The LCR bridge HM8118 does not create a 50Ω system. Instead, it changes its internal resistance dependent on measurement During the measurement of an inductance in the AUTO mode, it function and measurement range. -
Page 16: Circuit Type
7.1.1 Measurement Frequency FRQ The circuit type displays the equivalent circuit diagram of The LCR bridge HM8118 includes a measurement fre- the measurement circuit. Typically, the inductance of coils quency range from 20 Hz to 200 kHz (in 69 increments) is measured in serial mode. -
Page 17: Preload/ Bias Current Bias
Instrument Functions The LCR bridge HM8118 generates a sinusoidal measure- internal preload helps measurements on semiconductor ment AC voltage between 50 mV and 1.5 V with a re- components. solution of 10 mV . You can set the measurement AC vol-... -
Page 18: Measurement Range Rng
Component and measurement mode are identical to the example with the internal preload. The external DC preload is generated for the HM8118 by a power supply unit (here: Hameg HMP2020) in this example. The voltage is applied to the power supply unit at 20V and the current is limited to 250mA. -
Page 19: Triggering Trig
For very low measurement dium) setting is the medium averaging mode. The bridge frequencies, the measurement speed is automatically HM8118 performs 6 consecutive measurements, rejects reduced. the lowest and highest measurement values and generates an average based on the four remaining measurements. -
Page 20: Deviation Dev_M
This does not work for the Kelvin test lead provided with put via numeric keypad. A value input window will be ope- the HM8118, as this is not properly converted (the shields ned. You can use the numeric keys to enter a value. After... -
Page 21: Corr Menu
Instrument Functions The following table shows the change in the impedance ❙ SHORT: ranges when the constant voltage mode is deactivated A short compensation is performed to compensate for pa- (CST V OFF): rasitic effects (impedances) caused by connections between measurement accessories and component. To Measurement Range Component Impedance perform the short compensation, it is essential to only 1 to 2... -
Page 22: Menu Function Syst
5 parameter groups. Therefore, it is important that the The LOADM or LOADS function is not necessary for Hameg ac- 5 parameter groups have different frequencies for the load cessories. In this case, the regular OPEN /SHORT compensation impedance correction. -
Page 23: Saving / Loading Of Settings
Instrument Functions row keys to select the CONTRAST function meters. Use ESC or press the RECALL/STORE key again to choose the screen contrast, press the knob (editing to close the menu. mode) and select the desired contrast setting via knob. By pressing the knob again, you can activate the manual va- Factory Settings lue input via numeric keypad. -
Page 24: Measuring Equipment
LCR Maximum voltage: ± 40 V maximum value (AC+DC) bridge HM8118 by means of a suitable test lead. The test Connectors: BNC sockets (4), measurement contacts (2) lead will be connected with the bridge via the four front Safety standards: EN61010-1;... -
Page 25: Kelvin-Test Lead Hz184
The Kelvin test lead with Kelvin clamps allows for the be stored in the memory of the LCR bridge HM8118 and 4-wire measurement of components that could otherwise are valid until another compensation is performed. If any... - Page 26 (OPEN/SHORT compensation) with the LCR bridge HM8118. For the open compensation, the four test leads are connected to the measurement adapter HZ186. Be- fore starting the open compensation, the two black test leads (which are connected to the „COMMON“...
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Page 27: 4-Wire Smd Test Adapter Hz188
The short circuit principle is applied to determine the its net weight, it is recommended to mount the measure- leakage inductance for the HM8118 bridge. The wiring to ment adapter and bridge to a flat surface (e.g. a table). The... -
Page 28: Sorting Components With Option Ho118 Binning
Taste nach links zu drücken, bis beide Kontaktstifte resistance which impact the accuracy of the measured va- LCR bridge HM8118 and are valid until another compensa- elektrisch verbunden sind. Danach ist der rechte Kontakt- lues. To minimize these impacts, the compensation of im- tion is performed. - Page 29 ❙ Bin 7 (General Failure BIN 7) does not have a menu entry. tions can also be operated via remote control interface. The bridge HM8118 can sort components in up to 8 sepa- BIN OPEN or CLOSED: rate bins: six pass sorting bins, one secondary parameter ❙...
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Page 30: Remote Control
(DTE, e.g. a PC with measurement software) to the set to -1%. Press BIN. HM8118 bridge (DCE), or to be read by the external instru- 4. Select BIN 6 and enter the range limit (0.0001). Open ment. It is also possible to send commands and read mea- the bin (BIN). -
Page 31: Usb / Vcp
Hameg website www.hameg. com and unpacked into an appropriate directory. If you do not have a driver for the HM8118 bridge installed on the PC, the operation system issues the message "New hard- ware found“ once the connection between the bridge and the PC has been established. -
Page 32: Command Reference
*SAV i The *SAV command saves the current measuring instru- No remote PC software is available for the HM8118 bridge. The ment parameters in the memory location. You can select a supported commands can be embedded in any software environ- memory location between 0 and 9. - Page 33 2.4kHz 10kHz 60kHz sage (ERROR) if the HM8118 is not set to perform an in- ductance measurement or a transformer measurement (L- Q, L-R, N-Θ or M). Use the BIAS 1 (= internal) command The FREQ? query queries the set measurement frequency to activate the bias current which was previously activa- in Hz.
- Page 34 OUTS 1 or OUTS 2 command (DEV_S). This com- mand generates an error message (ERROR), if the automa- The PMOD? query queries the selected measurement tic HM8118 measurement range selection (AUTO) or the M function. measurement is activated (by means of the interference of mutual inductance).
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Page 35: Command List Binning Interface
The BING command locks (i=0) and enables (i=1) the bin- tion was successful (0) or if it failed (-1). ning. If no sorting bin is opened or if the measurement mode „AUTO“ is selected for the HM8118 , an error mes- sage is issued. XALL? -
Page 36: Technical Data
0 to +5,00 V Resolution 10 mV External bias voltage 0 to +40 Vdc (fused 0.5 A) 200 kHz LCR-Bridge HM8118 Internal bias current 0 to +200 mA All data valid at 23 °C after 30 minutes warm-up. Resolution 1 mA...
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