Hughes weschler instruments BarGraph BG-241TC Owner'S Manual Download Page 1

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BarGraph TriColor Series

Owners Manual

Manual Part Number OMTCM100

Revision 3.5, February, 2019

16900 FOLTZ PARKWAY, CLEVELAND, OHIO 44149

440/238-2550, FAX 440/238-0660 e-mail:

[email protected]

Summary of Contents for weschler instruments BarGraph BG-241TC

Page 1: ...BarGraph TriColor Series Owners Manual Manual Part Number OMTCM100 Revision 3 5 February 2019 16900 FOLTZ PARKWAY CLEVELAND OHIO 44149 440 238 2550 FAX 440 238 0660 e mail sales weschler com ...

Page 2: ...e 8 Lamp Test 8 Run 8 2 2 SUPERVISOR SETUP PROGRAMMING 9 Activating Supervisor Setup 9 Supervisor Setup Functions 9 Supervisor Setup Command Summary 10 Password 11 Alarm Setpoints 12 Set Hysteresis 13 Set Alarm Delay 13 BarGraph Zero 14 BarGraph Full Scale 15 Set Bar Form 16 Set Bar Zero 17 Set Bar Full Scale 17 Enable Disable Operator Setup 18 Enable Disable Peak Valley 18 Set Decimal Point 19 Se...

Page 3: ...BRATION 32 Linear Calibration Procedure 32 3 2 NONLINEAR CALIBRATION 34 Nonlinear Calibration Commands 34 Nonlinear Calibration Procedure 35 4 PHYSICAL DIMENSIONS 37 4 1 BG252TC and BH252TC Physical Dimensions 37 4 2 BG241TC Physical Dimensions 37 4 3 BG261TC Physical Dimensions 38 4 4 BG251TC and BG281TC Physical Dimensions 38 4 5 Terminal Connections BG 252TC and BH 252TC 39 4 6 Terminal Connect...

Page 4: ...trol panels Each segment in the LED Bar display can be illuminated as Red danger Yellow caution or Green safe TriColor BarGraph instruments also provide these features 5 digit display with resolution to 0 01 Alphanumeric mnemonics for setup and calibration Compatibility Retrofit sizes for GE Yokogawa 180 GE Yokogawa AB40 Crompton 128 Dixson SA BB 101 Dixson BEW51 Weschler VX252 Sigma International...

Page 5: ...OVER Three pushbutton switches are located on the front of the BarGraph two black pushbuttons with white triangular arrows and a red pushbutton with no markings The pushbutton switch with the triangular arrow pointing up is the INCREASE pushbutton The pushbutton with the triangular arrow pointing down is the DECREASE pushbutton ENTER SAVE is the red pushbutton During normal operation the front pan...

Page 6: ...need to be changed on a routine basis for normal operation of the instrument These functions include changing the alarm setpoint values LED brightness control and Lamp Test The ability to perform alarm setpoint programming LED brightness control Bar Digital display flashing Peak Valley value reset and latching relay reset may all be disallowed by disabling Operator mode in Supervisor Setup Supervi...

Page 7: ...l go to CNF and pressing the DECREASE pushbutton while CNF is displayed will go to RUN C N F A L 1 A L 2 A L 3 A L 4 B R I G H B F L S H D F L S H L T E S T R U N Enter Operator Setup Configure Enter password to access Supervisor Setup Adjust Alarm 1 setpoint Adjust Alarm 2 setpoint Adjust Alarm 3 setpoint Adjust Alarm 4 setpoint Set LED brightness Enable Disable bar display flashing Enable Disabl...

Page 8: ... Supervisor Setup mode Entering the correct password under Operator Setup will allow entry into Supervisor Setup Press ENTER SAVE Pressing the ENTER SAVE pushbutton once the correct password number is displayed will allow entry to Supervisor Setup If the correct password was not displayed the display will continue on to the next available setting and will not enter Supervisor Setup Notes As shippe...

Page 9: ... condition Failsafe outputs use an energized relay coil i e the relay coil must be de energized to indicate an alarm condition This cannot be changed in Operator Setup Press ENTER SAVE Setpoint value for this alarm is displayed The bar and digital displays both indicate value of the setpoint Press INCREASE DECREASE INCREASE and DECREASE pushbuttons can be used to change the setpoint value Hold it ...

Page 10: ...e new setting is saved once you have cho sen it and the BarGraph defaults to normal display mode You must press ENTER SAVE to store the new LED brightness setting and make it effective During an overrange underrange condition the Bar Display may be set to flash This function is used to enable or disable the flashing of the Bar Display Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The d...

Page 11: ...faults to normal display mode You must press ENTER SAVE to store the new setting and make it ef fective L TEST Lamp Test Press ENTER SAVE Press and hold ENTER SAVE All segments of the bar display be lit and the digital display will be lit as long as ENTER SAVE is held All segments of the bar display should be illuminated yellow and the digital display should show 8 8 8 8 8 If any segment of the ba...

Page 12: ...t for every purchase order Your particular unit may not include all functions listed on the next page depending on which options were ordered Supervisor Setup functions are cycled through using the INCREASE and DECREASE pushbuttons A particular function can be set by pressing the ENTER SAVE pushbutton Press ing the INCREASE pushbutton while RUN is displayed will go to CNF and pressing the DECREASE...

Page 13: ...librate Fullscale Barform Bar Zero Bar Fullscale Operator Setup Enable Disable Peak Valley Enable Disable Decimal Point Position Bar Display Fill Mode Bar Zone Color High Setpoint Color Low Setpoint Color LED Brightness Bar Flash Enable Disable Digital Flash Enable Disable Retransmit Signal Calibration Table nonlinear calibration Analog Retransmit Zero Analog Retransmit Fullscale Specific Gravity ...

Page 14: ...w password value is reached The longer the pushbutton is held the faster the display moves The password can be any numeric value between _9999 and 99999 Press ENTER SAVE Press the ENTER SAVE pushbutton to save the new password Notes As shipped from the factory the password is set to 0 This allows the user to enter Supervisor Setup and change the password It is recommended that the password be chan...

Page 15: ...SE pushbuttons can be used to change the setpoint value Hold it until the new setpoint value is reached The longer the pushbutton is held the faster the display moves to the required setpoint value Press ENTER SAVE To save the new setpoint value press the ENTER SAVE pushbutton Press INCREASE DECREASE INCREASE or DECREASE pushbutton can now be used to set the alarm HI or L0 respectively HI indicate...

Page 16: ...ting The delay before alarms are activated may be set from 0 to 10000 milliseconds 0 to 10 sec onds in 100 millisecond 0 100 second steps This provides some filtering for momentary conditions that may exceed alarm values but are not valid alarm conditions Note This delay is in addition to the normal response time and Update Rate Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display...

Page 17: ...BarGraph it merely defines what the number that corresponds to zero scale input will be for the existing calibration Press ENTER SAVE Press INCREASE DECREASE The display will show the saved state CAL or MOCAL The display will toggle between CAL and MOCAL CAL indicates that the user will use a laboratory standard to recalibrate the zero point see Section 3 for the complete Calibration Procedure MOC...

Page 18: ...arGraph it merely defines what the number that corresponds to fullscale input will be for the existing calibration Press ENTER SAVE Press INCREASE DECREASE The display will show the saved state CAL or MOCAL The display will toggle between CAL and MOCAL CAL indicates that the user will use a laboratory standard to recalibrate the fullscale point see Section 3 for the complete Calibration Procedure ...

Page 19: ... of Full Scale at the bottom and increasing up to 100 of Full Scale at the top Center 0 Zero point at 50 of bar display BarGraph reads 50 of Full Scale at the bottom and increases up to 50 at the top Top 0 Zero point at 100 of bar display This effectively re verses the bar display with 100 of Full Scale at the bottom of bar display and 0 of Full Scale at the top Variable allows the user to set any...

Page 20: ...orm has been set to Deviation or Variable barform see Barform function The BarGraph Full Scale display point may be set to a display value This is not a calibration command It only affects the bar display This command and the Set Bar Zero function may be used to limit the values shown on the bar display to a specific region of interest See Example at bottom of page Press ENTER SAVE Press INCREASE ...

Page 21: ...ssing the INCREASE or DECREASE pushbutton will set Peak Valley OM or OFF respectively Press ENTER SAVE to store the new setting Peak Valley allows the BarGraph to display the highest Peak and lowest Valley level during the reading cycle as determined by the reset During normal operation the front panel pushbuttons may be used to display and reset Peak Valley values Pressing the INCREASE pushbutton...

Page 22: ...display decimal settings and the order they appear are shown below Pressing the INCREASE or DECREASE pushbutton will cycle through the decimal options shown below 0 digits after the decimal point 1 digit after the decimal point 2 digits after the decimal point 0 0 2 0 0 3 0 0 0 4 1 Press ENTER SAVE Press ENTER SAVE to store the new setting M O M E 3 digits after the decimal point 4 digits after th...

Page 23: ...ions shown below TriColor mode The bar is one solid color that changes for each of the regions described above Typically the bar is set for green safe for AL2 to AL3 yellow caution for AL1 to AL2 or AL3 to AL4 and red danger for AL1 or AL4 T R I B A M D Press ENTER SAVE Press ENTER SAVE to store the new setting Color banding mode The bar has a specific color in each of 5 different regions on the d...

Page 24: ... ENTER SAVE Press INCREASE DECREASE The display will show the currentAL1 setpoint value The bar shows the color displayed while the bar is in the region AL1 to AL2 Pressing the INCREASE or DECREASE pushbutton will cycle through the colors Yellow Green and Red The bar display color will change to show the current choice Typically this is set to Yellow caution Press ENTER SAVE Press INCREASE DECREAS...

Page 25: ...hoice Typically this is set to Red danger Press ENTER SAVE The new settings will be saved Example If B FILL is set to TRI TriColor mode and the typical colors de scribed above are chosen the bar display will be Green as long as the display value is between the AL2 and AL3 setpoints The entire bar will illuminate Yellow in the regions AL1 to AL2 or AL3 to AL4 The entire bar will illuminate Red in t...

Page 26: ... color setting press the ENTER SAVE pushbutton This function is active only if B FILL was set to TRI TriColor This function is used to set the default color for the LO setpoints One segment of the bar display will be illumi nated in this color at the alarm setpoint values Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The bar display will change to a solid bar with the current LO setpoi...

Page 27: ...he LED brightness setting one step The display brightness will change to show the effect of the new setting To save the new LED brightness press the ENTER SAVE pushbutton During an overrange underrange condition the Bar Display may be set to flash This function is used to enable or disable the flashing of the Bar Display Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display will sh...

Page 28: ...ress the ENTER SAVE pushbutton R E T Configure Retransmit Signal Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display will show DIGIT digit or BAR to indicate the current state Pressing INCREASE or DECREASE will set the retransmit signal to DIGIT or BAR respectively If it is set to DIGIT digit the retransmit signal will track the digital display If set to BAR it will track the bar...

Page 29: ...s two pins on the CPU module The CPU module is located immediately behind the display module 4 Install the jumper in the location shown in the photo below 5 Insert the instrument internals into the case and reinstall the three screws removed in step 1 Do not install the cover at this time 6 Install a jumper across JA1 pins 1 and 2 on the display module 7 Power up the instrument and allow it to rei...

Page 30: ...0 mA milliAmps in 0 001 mA increments Typical values are 1 for a 0 to 1 mA signal and 20 mA for a 4 to 20 mA signal S GRAV Set Specific Gravity Correction Factor Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display will show the current specific gravity correction factor setting Pressing the INCREASE or DECREASE pushbutton will increase or decrease the specific gravity correction ...

Page 31: ...ment U RATE Set Update Rate Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display will show the current Update Rate Pressing the INCREASE or DECREASE pushbutton will increase or decrease the Update Rate in 0 1 second increments Press ENTER SAVE to store the new setting This function is used to set BarGraph Update Rate for display of new values It may be set from 0 000 to 10 000 sec...

Page 32: ...e two choices DC AC the signal source is an AC or DC signal input analog ASCII the display value is sent as ASCII characters from a serial port digital B SIZE Set Buffer Size Press ENTER SAVE Press INCREASE DECREASE Press ENTER SAVE The display will show the current buffer size Pressing the INCREASE or DECREASE pushbutton will increase or decrease the buffer size The minimum is 1 the maximum is 20...

Page 33: ... Press ENTER SAVE to store the new setting This function is used to set BarGraph communication ID Each BarGraph hooked to the communication lines must have its own unique ID to distinguish it from other units Commu nication ID s may range from 00 to 99 R U N Exit Supervisor Setup Press ENTER SAVE The BarGraph will exit Supervisor Setup mode and resume normal operation This is the point at which Su...

Page 34: ...ss variable is assumed to be linear straight line between these two points The second method involves calibration at a number of points and performs linear interpola tion between these points This method of calibration is useful for nonlinear process variables As few as three or as many as 50 points may be entered and calibrated The two different methods of calibration are illustrated graphically ...

Page 35: ...e displayed and the ENTER pushbutton pressed Pressing the IN CREASE or DECREASE pushbuttons will toggle between CAL and MOCAL Make sure that CAL appears on the digital display and press ENTER 4 The display will change to show 000 or previously set BarGraph Zero on the digital display 5 Apply the desired zero input value into the BarGraph signal input terminals Use a calibrated lab standard 6 Press...

Page 36: ...lease the ENTER pushbutton The desired Full Scale value is stored in memory and the displays change from the Full Scale value to the next setup function BAR if enabled 13 Step the INCREASE pushbutton to scroll through the setup modes until you return to RUN 14 Press ENTER At this point the BarGraph will return to normal operation 15 Recheck your BarGraph s Zero and Full Scale values with the lab s...

Page 37: ...ange the number of points in table Press INCREASE or DECREASE to en ter a new number of points in the table The number of points may range from 3 to 49 Table points are numbered from 0 to total pts 1 Press ENTER to save the new number of points PT 0 Level Four Press ENTER to access the calibration value at that point Press INCREASE or DECREASE to increment or decrement the point num ber Press INCR...

Page 38: ... change the number of points in the table The number of points in the table must be at least 3 and can be no more than 50 6 When the correct number of points for the table are displayed press ENTER The new value for table length will be stored and the display will change to showPT0 the first point in the table At this point the BarGraph instrument is ready to calibrate every point in the table 7 P...

Page 39: ...Graph will return to normal operation 15 Recheck your BarGraph s calibration values with the lab standard input signal source and verify that you have accomplished the desired results Values between each of the calibra tion points should be checked to insure that accuracy is maintained across the full range of calibration values ...

Page 40: ...AL DIMENSIONS 4 1 BG252TC and BH252TC Physical Dimensions 4 2 BG241TC Physical Dimensions A Inches 0 00 0 02 Number of Instruments A millimeters 0 00 0 51 1 2 3 4 8 1 770 3 510 5 250 6 990 13 95 45 89 139 178 354 ...

Page 41: ...ons 4 4 BG251TC and BG281TC Physical Dimensions Dim B Inches mm METER TYPE BG 251TC 7 562 185 27 Dim C Inches mm Dim D Inches mm BG 281TC 2 055 3 275 R 52 20 83 19 3 440 R 87 38 10 062 246 52 2 055 4 455 R 52 20 113 16 4 754 R 120 75 ...

Page 42: ...5ATC PC 101TC Frequency Tachometer or 3 and 4 Wire RTD Signal Inputs OP1 DC Volt Millivolt Amp or Milliamp Signal Inputs OP3 Line Frequency or Frequency Tachometer Signal Inputs OP4 AC or DC Volt Milliamp Amp Milliamp or Line Frequency Signal Inputs OP6 39 ...

Page 43: ...ive Voltage Current 1 2 HI LO Communications RS 485 1 2 3 LO Signal Ground HI RTD 1 2 3 4 Source Sense Sense source Relay Contacts 1 2 3 4 5 6 7 8 9 10 11 12 HI HI Normally Open HI HI Common HI HI Normally Closed HI Normally Open HI Common HI Normally Closed LO Normally Open LO Common LO Normally Closed LO LO Normally Open LO LO Common LO LO Normally Closed Reluctance Pickup Tachometer and Wide Ra...

Page 44: ...ONS 1 Receive 2 Common 3 Transmit RELAY CONTACTS 1 Hi Hi N O 2 Hi Hi C 3 Hi Hi N C 4 Hi N O 5 Hi C 6 Hi N C 7 Lo N O 8 Lo C 9 Lo N C 10 Lo Lo N O 11 Lo Lo C 12 Lo Lo N C N O Normally Open N C Normally Closed C Common POWER 1 Low Side 2 High Side RETRANSMIT 3 Output 4 Output SIGNAL 5 Input Low 6 Input High ...

Page 45: ...N STD STD STD STD _9999 99999 99999 99999 99999 LO LO LO LO 1 OFF OFF FSAFE FSAFE FSAFE FSAFE Enter Supervisor Setup if correct password was entered and all bar segments are illuminated Active as long as ENTER SAVE is held Return to Normal Operation These settings may be examined but cannot be changed in Operator Setup Press and hold ENTER SAVE for three seconds 5 Configuration Flowcharts Operator...

Page 46: ...9 _9999 HI HI HI HI 0 0 STD STD STD STD 99999 99999 99999 99999 99999 LO LO LO LO LCH 10000 FSAFE FSAFE FSAFE FSAFE CAL NOCAL CAL NOCAL _9999 _9999 99999 99999 Next Page Entered only from Operator Setup see Operator Setup Zero and FULL are shown for noCAL only CAL is a calibration and requires a laboratory standard Please see Section 3 Cal Supervisor Setup ...

Page 47: ...CNF Digital Display Increase Pushbutton Decrease Pushbutton ENTER SAVE Pushbutton KEY BAR B ZERO B FULL OPER PEA DEC B FILL B COL _9999 _9999 ON ON 99999 99999 OFF OFF 0 100 DEV 50 VAR 0 02 0004 NONE 1 003 TRI 100 80 60 40 20 BAND Next Page Bar FS Hi Hi Setp Hi Setp Lo Setp Lo Lo Setp Previous Page Bottom 0 Center 0 Top 0 Variable Deviation Supervisor Setup 44 ...

Page 48: ...ive as long as ENTER SAVE is held Return to Normal Operation B FLSH D FLSH RET TABLE L TEST U RATE 8 8 8 8 8 ID RUN ON ON BAR OFF OFF DIGIT 0 000 00 10 000 99 S GRAV 0 2 000 Previous Page This is a calibration function and requires a laboratory standar Non linear calibration will be enabled at the factory if require Please see Section 3 Calibration for a detailed Calibration Pr Supervisor Setup ...

Page 49: ...entative are not warranted by Weschler Instruments Field service is only available on a contract basis All products returned to Weschler Instruments must be insured by the sender and carefully packaged to prevent breakage from shock and rough handling All applicable shipping charges insurance duties and taxes must be paid by the sender WARNING Removal of instrument enclosures may expose users to h...

Page 50: ...20 240 VAC 15 50 60 400 Hz 1 3 VA 12 24 28 48 125 or 250 VDC 10 8W Input Sensitivities ANSI C39 1 Frequency 50 Hz to 20 kHz Level 5 to 250 V p p Accuracy 0 1 of full scale 1 count Line Frequency 55 Hz to 65 Hz Accuracy 0 01 of full scale 1 count DC Current 50 µA to 5A Voltage 50mV to 250V Accuracy 0 04 of full scale 1 count RMS Current 50 mA to 5A AC Voltage 1 to 250V AC Accuracy 0 1 of full scale...

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