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Model 8120-110A

POWER SUPPLY

Installation and Operating Manual

For assistance with the operation of this product,

contact PCB Piezotronics, Inc.

Toll-free: 800-828-8840

24-hour SensorLine: 716-684-0001

Fax: 716-684-0987

E-mail: [email protected]

Web: www.pcb.com

Содержание 8120-110A

Страница 1: ...PPLY Installation and Operating Manual For assistance with the operation of this product contact PCB Piezotronics Inc Toll free 800 828 8840 24 hour SensorLine 716 684 0001 Fax 716 684 0987 E mail info pcb com Web www pcb com ...

Страница 2: ...ialized tests including sensitivity at elevated or cryogenic temperatures phase response extended high or low frequency response extended range leak testing hydrostatic pressure testing and others For more information contact your local PCB Piezotronics distributor sales representative or factory customer service representative Returning Equipment If factory repair is required our representatives ...

Страница 3: ...ation on particular operating steps The following symbols may be found on the equipment described in this manual This symbol on the unit indicates that high voltage may be present Use standard safety precautions to avoid personal contact with this voltage This symbol on the unit indicates that the user should refer to the operating instructions located in the manual This symbol indicates safety ea...

Страница 4: ...E 住房 O O O O O O PCB板 X O O O O O 电气连接器 O O O O O O 压电晶体 X O O O O O 环氧 O O O O O O 铁氟龙 O O O O O O 电子 O O O O O O 厚膜基板 O O X O O O 电线 O O O O O O 电缆 X O O O O O 塑料 O O O O O O 焊接 X O O O O O 铜合金黄铜 X O O O O O 本表格依据 SJ T 11364 的规定编制 O 表示该有害物质在该部件所有均质材料中的含量均在 GB T 26572 规定的限量要求以下 X 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB T 26572 规定的限量要求铅是欧洲RoHS指令2011 65 EU附件三和附件四目前由于允许的豁免 CHINA RoHS COMPLIANCE ...

Страница 5: ... O Wires O O O O O O Cables X O O O O O Plastic O O O O O O Solder X O O O O O Copper Alloy Brass X O O O O O This table is prepared in accordance with the provisions of SJ T 11364 O Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of GB T 26572 X Indicates that said hazardous substance contained in at least one of t...

Страница 6: ...T WITH DIGITAL INDICATOR 2 2 FULL SCALE DISPLAYS FOR THREE RANGES 4 3 SCALE DECIMAL POINT DUMMY ZERO SWITCHES 4 4 A D CONVERTER TIMING DIAGRAM 8 5 BLOCK DIAGRAM DESCRIPTION 9 Tables 1 8120 SERIES MODEL NUMBERING 2 2 SPECIFICATIONS 3 If you need information regarding specific Model 8120 components and circuitry please contact the Force Torque Division of PCB toll free at 888 684 0004 or e mail forc...

Страница 7: ...t consists of a printed circuit board on which are mounted the required circuit components for digitizing the analog output of the Signal Conditioner and the light emitting diode LED display This board is mounted above the circuit board that contains the components for the Signal Conditioner The digits that comprise the display are mounted on a small board which is affixed to the digitizer board w...

Страница 8: ...ctions are given in the accompanying Signal Conditioner Instruction Manual The following paragraphs provide the instructions for legend installation scale selection decimal point dummy zero selection and ac power connection Legend Installation A sheet of dry transfer lettering is supplied with each instrument to provide the user with a means of affixing an engineering unit legend to the front pane...

Страница 9: ...the 8120 Series Instruments are equipped with a three conductor power cord When the cord is plugged into the appropriate receptacle the instrument is grounded The offset pin on the power cord is ground To maintain the safety ground when operating the instrument from a two contact outlet use a three prong to two prong adaptor and connect the green pigtail on the adaptor to ground To prepare the ins...

Страница 10: ...ntegrate cycle and a Reference Integrate cycle Each cycle has a time base in which a certain amount of clock pulses occur The clock used is a 100 kHz crystal oscillator The Auto Zero cycle is used to bring the output of the integrator to zero and lasts 10 000 counts The next cycle is the Signal Integrate cycle which also lasts 10 000 counts If the analog input is zero at the start of the Signal In...

Страница 11: ...s and the B SELECT input is high The Y data is transferred to the output of the Bit Selector and the display count is by 1 s On the 10000 range the A SELECT input is held low except when the Dl DIGIT DRIVE is high When D1 is high the A SELECT is high and the B SELECT is low transferring the X data to the Z ports of the Bit Selector and allowing the display to count by 2 s Operation on the 20000 ra...

Страница 12: ...les of the A D Converter then it goes low This causes the output of the OR gate to go low The BLANK port of the BCD to 7 Segment Decoder is normally held high through an external resistor When the OR gate output goes low the BLANK port is pulled low through a diode causing DS2 through DS6 to flash Since DS1 is not driven from the decoder a second diode and resistor are used to pull the A D Convert...

Страница 13: ...MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL 8 Figure 4 A D Converter Timing Diagram ...

Страница 14: ...MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL 9 Figure 5 Block Diagram ...

Страница 15: ...fication of Normal Operation 3 5 0 Repair Service 4 6 0 Return Procedure 4 7 0 Customer Service Warranty 4 Reference Figures and Tables FIGURE 1 Star Bridge Construction 4 FIGURE 2 Front Panel Description 6 FIGURE 3 Rear Panel Description 6 FIGURE 4 Instrument Mounting Dimensions 7 FIGURE 5 Instrument Panel Mountings 8 FIGURE 6 PCB Model 8120 Instrument I O Connector w pin Designations 9 TABLE 1 S...

Страница 16: ... of installations are shown in Figure 4 of the manual Panel cut out dimensions for mounting the 8120 are also shown in Figure 4 Up to four 8120 Instruments can be mounted in a 19 inch rack by using the 1 3 4 inch high Rack Adaptor See B on Figure 1 page 7 To panel mount a 8120 in a panel cut out please see Item C on Figure 4 page 7 and Figure 5 on page 8 for details It is important when panel moun...

Страница 17: ...f interfacing the 8120 to the customer s transducer and will provide a quotation if desired Transducer Excitation Either 5 volt or 10 volt bridge excitation can be selected In general 5 volt excitation is used with 120 ohm transducers and the 10 volt excitation is used with 350 ohm transducers However for any transducer which has a 4 mV V or higher sensitivity 5 volt excitation must be used to mai...

Страница 18: ...000 x 350 49 44 of full scale 2472 lbs 59000 x 3 4 0 Verification of Normal Operation It is the purpose of this section to aid the user in determining in the event of a malfunction to which the Model 8120 is suspected of contributing whether the module is functioning normally or whether it is a source of the observed trouble In the event the module requires repair the user may contact the factory ...

Страница 19: ... contact the International Sales department at PCB to request shipping instructions and an RMA For assistance please call 716 684 0001 or fax us at 716 684 8877 You may also receive assistance via e mail at force pcb com or visit our web site at www pcb com 7 0 Customer Service Warranty The employees of PCB strive to provide superior unmatched customer service Should you at any time find yourself ...

Страница 20: ...stments 10 turn coarse and fine 1 to 8 mV V full scale Analog Outputs Three analog outputs available 0 to 5 volts with 50 over range 5 milliamperes maximum Band pass is dc to 2 kHz dc to 200 Hz or dc to 2 Hz depending on output used Active low pass filters provide for roll off of 60 dB per decade above cutoff frequency Full scale slew time is 1 4 f seconds where f is the cutoff frequency Common Mo...

Страница 21: ...hese switches located in the upper right corner of the panel place the decimal point in its proper place for the measurement range Moving one 1 of the switches places the decimal point at the selected position on the front panel display Switching the rightmost switch on causes an inert zero to be displayed RANGE PUSHBUTTONS These pushbuttons control the range shown on the front panel display For i...

Страница 22: ...MODEL 8120 100 110 STRAIN GAGE CONDITIONER OPERATION MANUAL 7 Figure 4 Instrument Mounting Dimensions ...

Страница 23: ...MODEL 8120 100 110 STRAIN GAGE CONDITIONER OPERATION MANUAL 8 Figure 5 Instrument Panel Mounting ...

Страница 24: ...MODEL 8120 100 110 STRAIN GAGE CONDITIONER OPERATION MANUAL 9 Figure 6 PCB Model 8120 Instrument I O Connector w pin Designations MANUAL NUMBER 18221 MANUAL REVISION NR ...

Страница 25: ......

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