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MULTICHANNEL SIGNAL CONDITIONER MODEL 482C27 GENERAL OPERATION MANUAL

Figure 7 Alternate Connections for Differential Voltage/Full Bridge Type Sensors

(sense leads connected at the signal conditioner)

5-2.

Half Bridge Mode

Figure 8 Recommended Connections for Half Bridge Type Sensors

(sense leads wired for optimum performance)

full bridge
sensor

SIG
GND

optional
shunt resistor
(external)

SIG -

SENSE -

V EXC -

V EXC +

SIG +

SENSE +

R SHUNT

internal half
bridge
completion

optional
shunt resistor
(external)

half bridge
sensor

SIG -

SENSE -

V EXC -

V EXC +

SIG
GND

SIG -

SIG +

SENSE +

R SHUNT

Содержание 482C27

Страница 1: ...ty regimen When in doubt about a calibration cycle a good rule of thumb is to recalibrate on an annual basis It is also good practice to recalibrate after exposure to any severe temperature extreme sh...

Страница 2: ...rchase Order should include authorization to proceed and return at current pricing which can be obtained from a factory customer service representative Contact Information International customers shou...

Страница 3: ...isclosure Table Pb Hg Cd Cr VI PBB PBDE O O O O O O PCB X O O O O O O O O O O O X O O O O O O O O O O O O O O O O O O O O O O O O O X O O O O O O O O O X O O O O O O O O O O O X O O O O O X O O O O O...

Страница 4: ...e O O X O O 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 Indica...

Страница 5: ...For powering differential voltage MEMS single ended MEMS and bridge quarter full half sensors this signal conditioner provides an effective method for managing small numbers of sensor channels A simp...

Страница 6: ...zation 7 The factory defaults are 7 2 3 Main Menu Format 7 2 4 Submenu Format and Command Selections 8 3 0 THEORY OF OPERATION 19 3 1 Sensor Excitation 19 3 2 Input Protection 20 3 3 Input Fault Detec...

Страница 7: ...Ethernet Communication 23 4 6 Model 482C27 Communication Guidelines 30 4 7 Model 482C27 Unit Initialization Procedure 30 4 8 Command Summary 30 4 9 Command Format 31 4 10 Commands 32 GAIN 32 SENS 32...

Страница 8: ...re 3 Input Fault Window Comparator with LED Indicator 20 Figure 4 Input Amplifier Configuration 20 Figure 5 Autoscale Overload Window Comparator 21 Figure 6 Differential Voltage Full Bridge Type Senso...

Страница 9: ...ualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid injury WARNING 2 This equipment is designed with user safety in mind however the protectio...

Страница 10: ...d Single Ended Main use is with MEMS sensors that have a single ended output Sensor examples are PCB model series 3711 and 3713 The bridge inputs are compatible with full and bridge sensors Internal s...

Страница 11: ...uency 50 or 60 Hz or a multiple of the fundamental frequency is present in the system when the sensors are at rest In order to maintain the operating specification of noise and reduce the effects of l...

Страница 12: ...the channel and increments This button is used to scroll UP through the options in the menus In the submenus this button can be used to change the channel and increments This button moves you in the...

Страница 13: ...PT from the main menu and hit enter Once in the submenu the flashing cursor will be in the channel column hit the up arrow button until the channel column reads 2 Chan Input Type 2 ICP Hit the left ri...

Страница 14: ...le from 1 to 200 0 step of 1 Use the left right arrow key to move the flashing cursor over any digit in the gain column to select an appropriate value In this example a gain of 10 is selected see exam...

Страница 15: ...istance If the unit becomes dusty and dirty it may be wiped off with a soft cloth 2 0 FRONT PANEL MODULE CONTROL 2 1 Introduction Model 482C27 is equipped with the capability of controlling functions...

Страница 16: ...t Disp Savs GType Pressing the down arrow key button once again shows GAIN SENS INPT FSOT FSIN FLTi 2 4 Submenu Format and Command Selections 1 Gain Functionality Includes five menu selections The fol...

Страница 17: ...GType must be set to the Normalize selection The submenus for SENS FSIN and FSOT appear like this The 482C27 has the ability to automatically normalize the output sensitivity of each channel based on...

Страница 18: ...to select either On or Off once you have the desired setting selected hit ENTER to apply it Chan INP Filter 2 Off 4 Output Filter FLTo on front panel A screen stating This Option is Not Installed will...

Страница 19: ...low it to be set while unless it is in ICP mode If a channel is selected from the EXCi menu that is inappropriate then NA will appear as shown below in place of the ICP current settings Also because o...

Страница 20: ...will not allow it to be set while in those modes If a channel is selected from the EXCv menu that is inappropriate then NA will appear as shown below in place of the voltage and polarity settings Als...

Страница 21: ...AUTOBAL AUTOZERO The selection can be changed by using the up or down buttons Chan AUTOZERO 1 AUTOBAL NOTE If the zero function fails either the message Error Removing MainBd DC Offset or Error Removi...

Страница 22: ...7 A This Option is Not Installed message will appear if it is selected SWOT CLMP Bias CHRD Cal LEDS 12 Bias Measurement Bias on the front panel The 482C27 is capable of measuring the bias voltage pres...

Страница 23: ...g the ENTER key on the front panel when the cursor is located on the CAL option CHRD CAL LEDS Ver Unit Reset The following submenu will appear Choose the channel you wish to change by using the up and...

Страница 24: ...ion Ver on front panel To determine the firmware version of the unit select the Ver menu option CHRD Cal LEDS Ver Unit Reset A screen similar to the one shown below will be displayed PCB 482C27 FW v4P...

Страница 25: ...ay Content Options Disp on front panel The display option allows the user to choose from 3 selections of front panel content To enter this mode place the cursor over the Disp option and hit enter Ver...

Страница 26: ...eplaces the gain setting The bias reading will be refreshed periodically Following is what the screen will look like if the display was set to show Bias B B I I B15 B15 B23 B23 The Output display opti...

Страница 27: ...w impedance voltage output The sensor is powered by a 24 VDC power supply having a typical constant current of 2 to 20 mA current can be fixed or variable depending on the signal conditioner model Sen...

Страница 28: ...front panel input fault LED lights NOTE Red LED implies input fault Figure 3 Input Fault Window Comparator with LED Indicator 3 4 Input Interface The input signal conditioning for each channel provid...

Страница 29: ...justment appears as ARNG on front panel display It first sets maximum gain on all channels then decreases the gain setting of any channel on which an overload has occurred Auto scale continues until t...

Страница 30: ...ferential voltage and bridge quarter half full mode sensor inputs NOTE If the sense lines are not used they should be tied to the excitation lines 3 10 RS 232 Ethernet connections See section 4 0 for...

Страница 31: ...umber of stop bits 1 Handshaking None Echo None Transmit EOL Carriage Return and Line Feed CR LF Receive EOL Carriage Return and Line Feed CR LF 4 4 RS 232 Rear Panel Pinout Listing Number of 9 Pin Co...

Страница 32: ...in the list You can verify it is the correct unit but comparing the Hardware MAC Address displayed to the one listed on the side of the 482 unit Selecting an item from the list shown below highlights...

Страница 33: ...rs though are not the default parameters of this device In the screens that follow the fields pointed to with arrows are the modified parameters Should you need to change them or want to check them if...

Страница 34: ...MANUAL 26 After the Login dialog the Settings pane will appear on the left as shown below click on Connection Make sure the parameters are set as shown If you need to change the Port do it here When...

Страница 35: ...MULTICHANNEL SIGNAL CONDITIONER MODEL 482C27 GENERAL OPERATION MANUAL 27...

Страница 36: ...MULTICHANNEL SIGNAL CONDITIONER MODEL 482C27 GENERAL OPERATION MANUAL 28...

Страница 37: ...MULTICHANNEL SIGNAL CONDITIONER MODEL 482C27 GENERAL OPERATION MANUAL 29...

Страница 38: ...el LEDs three times 4 8 Command Summary The table below is a summary of the 482C27 command set The 482C series is highly differentiated and some commands may not be valid in all units The 482C command...

Страница 39: ...onse being returned No response is ever given to a Global Unit command All messages must be terminated with a CR r and LF n combination Command Format Unit Ch Cmd value1 value2 Ch Cmd value1 value2 n...

Страница 40: ...0 10 0 200 0 3 5 0 10 0 10 0 200 0 4 5 0 10 0 10 0 200 0 SENS The SENS command provides a mechanism to have the transducer Sensitivity influence the Gain setting of the channel Channel Gain is calcul...

Страница 41: ...ong with the transducer sensitivity set the gain Channel Gain is calculated using the equation Gain FSO 1000 FSI SENS Setting 1 1 FSCO 10 000 r n unit 1 channel 1 FSO set to 10 0 Setting Response 1 FS...

Страница 42: ...P Voltage mode maximum is 200 so switching from Bridge to ICP Voltage will reset the Gain to the ICP maximum if the current Bridge setting is higher than the ICP maximum IEXC The IEXC command sets the...

Страница 43: ...Filter The Input Filter value is sent as an integer value of either 0 Disable or 1 Enable Setting 2 1 FLTR 1 r n unit 2 channel 1 Input Filter Enabled Setting Response 2 FLTR ok Query The FLTR query...

Страница 44: ...1 1 CPLG 1 r n unit 1 channel 1 DC Coupled Setting Response 2 CPLG ok Query The CPLG query returns all channels coupling setting Query Format Unit Ch CMD Response format Unit Cmd Ch 0 1 Query 1 1 CPLG...

Страница 45: ...ration setting Query Format Unit Ch CMD Response format Unit Cmd Ch 0 1 Query 1 1 CALB Response 1 CALB 1 4 Global Query 1 0 CALB Global Response 1 CALB 1 4 2 0 3 0 4 0 RTED The Read TEDS RTED command...

Страница 46: ...nly Query This command must be a directed command use of the global channel indicator is not allowed Query Format Unit Ch CMD Response format Unit Cmd Ch GAIN Gain value SENS SENS value FSCI FSCI valu...

Страница 47: ...nnel settings on power up Unit Bit 1 1 BAD EEPROM read for Unit options on power up Unit Bit 2 1 BAD EEPROM read for cal factors on power up For Unit bit map 0 no errors Channel Bit 0 Short input faul...

Страница 48: ...ILTER_PGMBTR 0x10 Prgm LP Butterworth filter Miscellaneous Options OPT_MISC_COUPLING 0x01 AC DC coupling OPT_MISC_CLAMP 0x02 Clamp OPT_MISC_TEDS 0x04 TEDS OPT_MISC_IEXC 0x08 current excitation OPT_MIS...

Страница 49: ...e following error codes could be reported by the auto zero balance function 11 Bridge DC Offset ERR Illegal Setting 12 Bridge DC Offset ERR Too Many iterations 13 ICP DC Offset ERR Bad RDG 14 ICP DC O...

Страница 50: ...e and then turns off the function automatically When Auto scale is ON the unit will continue to invoke the function adjusting the gain for the current input level until the function is turned OFF with...

Страница 51: ...d properly Unit Cmd String 1 CR LF Option Error The unit is not equipped with the option necessary to implement the command sent Unit Cmd String 2 CR LF Channel Error The channel number in the command...

Страница 52: ...lines must be connected The figures below illustrate the connections in each of these modes NOTE The shell of the DIN connector is connected as shown to earth ground internally 5 1 Differential Voltag...

Страница 53: ...e signal conditioner 5 2 Half Bridge Mode Figure 8 Recommended Connections for Half Bridge Type Sensors sense leads wired for optimum performance full bridge sensor SIG GND optional shunt resistor ext...

Страница 54: ...d be set to RSE mode which internally grounds the SIG input The voltage output from the sensor or other source may then be applied to the SIG non inverting input Set V EXC to unipolar at a voltage app...

Страница 55: ...rol keypad 1 Input Mode Select INPT on front panel Set sensor input type to Differential Voltage 2 Gain Type GType on front panel Set the gain type to GAIN 3 Gain GAIN on front panel Set signal condit...

Страница 56: ...ioner channel gain to 1 on all channels connected to a MEMS sensor 4 Coupling ACDC on front panel Set signal conditioner input coupling to DC 5 Voltage Excitation EXCv on front panel Set the excitatio...

Страница 57: ...10 Hz Gain x1 1 5 V Hz 1 5 V Hz 3 Spectral Noise 100 Hz Gain x1 1 0 V Hz 1 0 V Hz 3 Spectral Noise 1 kHz Gain x1 1 0 V Hz 1 0 V Hz 3 Spectral Noise 10 kHz Gain x1 1 0 V Hz 1 0 V Hz 3 Broadband Electri...

Страница 58: ......

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