Hameg HM8118 Скачать руководство пользователя страница 4

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Important Notes

1  Important Notes

1.1 Symbols

(1)

(2)

(3)

Symbol 1:  Caution, general danger zone – 

Refer to product documentation

Symbol 2: Risk of electric shock
Symbol 3:  Ground terminal

1.2 Unpacking

While unpacking, check the package contents for com-
pleteness (measuring instrument, power cable, product 
CD, possibly optional accessories). After unpacking, check 
the instrument for mechanical damage occurred during 
transport and for loose parts inside. In case of transport 
damage, please inform the supplier immediately. The in-
strument must not be operated in this case.

1.3  Setting Up the Instrument

Two positions are possible: .

According to Fig. 1 the front feet are folded down and are 
used to lift the instrument so its front points slightly up-
ward (approx. 10 degrees). If the feet are not used (Fig. 2) 
the instrument can be stacked safely with many other HA-
MEG  instruments. In case several instruments are stak-
ked (Fig. 3) the feet rest in the recesses of the instrument 
below so the instruments can not be inadvertently mo-
ved. Please do not stack more than 3 instruments. A hig-
her stack will become unstable, also heat dissipation may 
be impaired.

Fig. 1

Fig. 2

Fig. 3

1.4 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 
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. To maintain this condition and to ensure safe op-
eration, the user must observe all instructions and warn-
ings given in this operating manual. Casing, chassis and 
all measuring ports are connected to a protective earth 
conductor. The instrument is designed in compliance with 
the regulations of protection class 0.

For safety reasons, the instrument may only be operated 
with authorized safety sockets. The power cord must be 
plugged in before signal circuits may be connected. Never 
use the product if the power cable is damaged. Check reg-
ularly if the power cables are in perfect condition. Choose 
suitable protective measures and installation types to en-
sure that the power cord cannot be damaged and that no 
harm is caused by tripping hazards or from electric shock, 
for instance.

If it is assumed that a safe operation is no longer possible, 
the instrument must be shut down and secured against 
any unintended operation. 

Safe operation can no longer be assumed:

If the measuring instrument shows visible damage

If the measuring instrument no longer functions properly

After an extended period of storage under unfavorable
conditions (e.g. outdoors or in damp rooms)

After rough handling during transport (e.g. packaging that

does not meet the minimum requirements by post office,

railway or forwarding agency).

In case of doubt the power connector should be checked 
according to DIN VDE 0100/610:

❙ Only qualified personnel may open the instrument

Prior to opening the instrument must be disconnected
from the line and all other inputs/outputs.

1.5  Intended Operation

The measuring instrument is intended only for use by per-
sonnel familiar with the potential risks of measuring elec-
trical quantities. For safety reasons, the measuring instru-
ment may only be connected to properly installed safety 
socket outlets. Separating the grounds is prohibited. The 
power plug must be inserted before signal circuits may be 
connected. The product may be operated only under the 

operating conditions and in the positions specified by the 

manufacturer, without the product’s ventilation being ob-

structed. If the manufacturer’s specifications are not ob

-

served, this can result in electric shock, fire and/or serious 

personal injury, and in some cases, death. Applicable local 

It is prohibited to disconnect the earthed protective 

connection inside or outside the instrument!

Содержание HM8118

Страница 1: ...HM8118 Programmable LCR Bridge User Manual...

Страница 2: ...not leave the premises All signal connec tions must be shielded e g coax such as RG58 U With signal generators double shielded cables are manda tory It is especially important to establish good ground...

Страница 3: ...rement Range 51 6 5 Circuit Type 52 7 Instrument Functions 52 7 1 SETUP Menu 52 7 1 1 Measurement Frequency FRQ 52 7 1 2 Voltage LEV 53 7 1 3 Preload Bias Current BIAS 53 7 1 4 Measurement Range RNG 5...

Страница 4: ...fety reasons the instrument may only be operated with authorized safety sockets The power cord must be plugged in before signal circuits may be connected Never use the product if the power cable is da...

Страница 5: ...n the back panel has to be unplugged The product may only be opened by authorized and qualified personnel Prior to working on the product or before the product is opened it must be disconnected from t...

Страница 6: ...Cells and batteries must be recycled and kept separate from residual waste Cells and batteries must be recy cled and kept separate from residual waste Recharge able batteries and normal batteries tha...

Страница 7: ...ng the parallel equivalent circuit RANGE 17 AUTO HOLD Activating the automatic measurement range LED lights up or the range HOLD function 18 UP Range up 19 DOWN Range down Connectors 20 L CUR BNC sock...

Страница 8: ...38 L Q 1 Selection of the measurement function Induc tance and Quality factor Q resp entering numeric value 1 39 Z 7 Selection of the measurement function Im pedance Z and Phase angle resp entering nu...

Страница 9: ...be very low at this setting The smaller the loss angle the more the real world com ponents will come close to the ideal An ideal inductor has a loss angle of zero degrees An ideal capacitor also has a...

Страница 10: ...esistors will be measured using the parallel equivalent circuit 4 First Time Ope ration 4 1 Connecting the instrument Prior to connecting the instrument to the mains check whether the mains voltage co...

Страница 11: ...result of multiple possibly overlapping individual capacities inductances and impedances This can easily cause some misunderstandings especially with coils magnetic field eddy currents hysteresis etc...

Страница 12: ...d by the dissipation factor DF The equivalent series resistance ESR is frequency depen dent according to the formula ESR Rs D Cs where Omega 2 f circular frequency represents Traditionally the inducta...

Страница 13: ...only be displayed with an integrated binning interface HO118 Use the keys L R 2 36 C D 3 34 C R 4 32 R Q 5 30 to select the sub menus associated with the menu functions Depending on the function you...

Страница 14: ...elative measurement value deviation in percent Press the SELECT key 3 to use the SETUP and the set ting DEV_M for the main measurement value display and DEV_S for the secondary measurement value displ...

Страница 15: ...nts the instrument from constantly switching the measurement range if the measurement va lue is close to the switching threshold of a measurement range The following table shows the switching threshol...

Страница 16: ...be better suited as equivalent circuit diagram for the measurement circuit In the auto matic mode the bridge selects the serial equivalent circuit diagram for impedances below 1k and the parallel equ...

Страница 17: ...m i e after switching off the bias current it is required to wait for the coils to discharge before the component is disconnected from the measuring instrument During the discharge Please wait is show...

Страница 18: ...e RNG The measurement range can be selected automatically or manually If the measurement range is changed the inter nal measurement circuit replacement circuit will be mo dified and internal relays wi...

Страница 19: ...rigger event measurement has been triggered or the selected measurement function has been selected incorrectly lue via keypad confirm the entry by pressing the ENTER key or by pressing the knob again...

Страница 20: ...g HZ184 are used If the DUT ex hibits impedances of more than 25k at frequencies of more than 100kHz is is also recommended to use the GUARD function REF_S In the SETUP menu use the arrow keys 7 to s...

Страница 21: ...ithout components connected The short compensation is possible for impedances of up to 15 and resistances of up to 10 LOAD A compensation with adjustment compensation of a known load impedance is suit...

Страница 22: ...enter a value After en tering the value via keypad confirm the entry by pressing the ENTER key or by pressing the knob again The LOADM or LOADS function is not necessary for Hameg ac cessories In this...

Страница 23: ...FRQ function to choose the line frequency press the knob 6 editing mode and select the desired line frequency 50Hz 60Hz via knob Press the knob again to confirm the selection 7 3 6 Instrument Informat...

Страница 24: ...nt panel During a measure ment do not touch the component directly with hands or indi rectly with objects as this may distort the measurement results Always remove measurement accessories such as test...

Страница 25: ...rate via 4 wire con nection with LCR bridge HM8118 Measurable components Resistances coils or capacitators Frequency range 20 Hz to 200 kHz Test lead length approximately 35 cm Connectors BNC sockets...

Страница 26: ...he unknown state of the prema gnetized core The component to be measured is depen dent on the frequency as well as on the applied measure ment voltage The measuring instrument determines the values fo...

Страница 27: ...de termining the leakage inductance requires the secondary transformer side to be short circuited see fig 8 11 If the secondary side is short circuited the measured values of the primary side correspo...

Страница 28: ...easurement se tup are implemented it becomes necessary to perform a new compensation For more information about the OPEN SHORT compensation see chapter 7 2 8 5 Sorting Components with Option HO118 Bin...

Страница 29: ...nge for the sorting bins 0 5 and only the secondary parameters exceed the limit for sorting bin 6 7 General Fai lure BIN This sorting bin output is activated if the sorting does not apply to one of th...

Страница 30: ...sponds to TTL level and triggers with falling slopes It is protected against voltages of up to 15 volts For more information on the binning interface in the con text of the PIN and jumper assignment r...

Страница 31: ...E 488 controller control unit of a IEEE 488 bus system Any PC equipped with the corresponding plug in card can function as IEEE 488 controller If a IEC 625 cable must be used an appropriate plug in ad...

Страница 32: ...ort parallel processing of commands measuring instrument and if the instrument is ready to per form another measurement WAI The WAI command is a synchronization command that stops every subsequent com...

Страница 33: ...easurement circuit By de fault the automatic circuit type i 2 is selected Use i 0 The constant voltage CST V function must be switched on for measurements with bias current or external preload The err...

Страница 34: ...ative measurement value deviation REF_M for the main measurement value display if the measurement value de viation of the main measurement value display was previ ously activated via OUTP 1 or OUTP 2...

Страница 35: ...o 0 or if the automatic measurement mode AUTO is selected an error message is issued 10 3 Command List Binning Interface only with integrated binning interface HO118 XBIN The XBIN query queries the nu...

Страница 36: ...to 180 999 99 to 999 99 M 1 H to 100H N 0 95 to 500 Measurement conditions and functions Test frequency 20Hz to 200kHz 69 steps Frequency accuracy 100ppm AC test signal level 50mVrms to 1 5Vrms Resol...

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