Contents 1 INTRODUCTION ......................... 1 Scope ..........................1 Features ..........................1 Compatibility ........................1 How to Use this Manual ....................1 2 SETUP ............................ 2 Options ..........................2 Normal Operation ......................2 Operation During Setup ....................3 Operator and Supervisor Setup ..................3 Activating Operator Setup ....................
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Configure Retransmit Signal ..................25 Set Calibration Table ..................... 26 Set Analog Retransmit Zero Value ................26 Set Analog Retransmit Fullscale Value ................ 27 Set Specific Gravity Correction Factor ................ 27 Lamp Test ........................28 Set Update Rate ......................28 Signal Source ........................
Scope This manual covers features and programming specifically for the following versions of Weschler Instruments BarGraph™ TC (TriColor) instruments: • BG-252TC • BV5ATC • PC101TC • BW1316TC • BG-241TC • BG-251TC • BG-261TC • BG-281TC Note: Your BarGraph™ may not contain all the options described in this manual. Features Weschler Instruments BG TC, TriColor BarGraph provide the quickest way to spot problems in process control panels.
Options Weschler BarGraph™ displays are individually configured for every purchase order. This manual is intended as a reference for all options that may be ordered on BarGraph™ displays. Your particular unit may not include all options listed in this manual. Please consult the ordering guide and the part number on the BarGraph™...
Pressing all three pushbuttons simultaneously will reset the captured Peak value,the cpatured Valley value and reset the latching relays. Note that the state of latching relays and the Peak/Valley values are stored electronically. If power to the unit is interrupted the latched relay states will be lost and Peak/Valley values will be reset.
Activating Operator Setup If Operator Setup was enabled under Supervisor Setup, pressing the red ENTER/SAVE pushbutton and holding it for more than 3 seconds activates Operator Setup. When operator setup is first enabled, is displayed on the digital display. This is the point at which the user enters Operator Setup.
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P A S S Supervisor Setup allows access to BarGraph parameters that should not be changed routinely and may even lead to dangerous situations if inadvertently changed. For this reason, entry into the Supervisor Setup mode is protected by a password. The display will show (zero), prompting the user to enter the correct pass- word.
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A L 1 A L 2 A L 3 A L 4 Up to four alarm setpoints are provided, depending on the options ordered. In Operator Setup these setpoint values may be examined and changed only if Operator Setup was enabled under Supervisor Setup (see Enable/Disable Operator Setup). The type of setpoint FSAFE ) and state of the relay contact ( ) may be examined but can only...
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B R I G H LED brightness can be controlled from Operator Setup. Sixteen settings are available: is the dimmest setting while is the brightest. The factory default setting is The display will show the current LED brightness setting. Press ENTER/SAVE Pressing INCREASE or DECREASE will increment or decrement the LED brightness setting one step.
D . F L S H During an overrange/underrange condition, the Digital Display may be set to flash. This func- tion is used to enable or disable the flashing of the Digital Display. The display will show to indicate the current state. Press ENTER/SAVE Pressing INCREASE sets flashing...
Activating Supervisor Setup Supervisor Setup can only be activated by entering the correct password (see page 5). After the password is accepted, is displayed on the digital display*. This is the point at which the user enters Supervisor Setup. To leave Supervisor Setup, scroll to and press the ENTER/SAVE pushbutton or wait for time-out.
Supervisor Setup Command Summary C N F B . C O L Entry (Configuration) Bar Zone Color P A S S H I . C O L High Setpoint Color Password A L 1 L O . C O L Low Setpoint Color Alarm 1 A L 2...
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P A S S Supervisor Setup allows access to BarGraph parameters that should not be changed routinely and may even lead to dangerous situations if inadvertently changed. For this reason, entry into the Supervisor Setup mode is protected by a password. After entry into Supervisor Setup, you may change the password as follows: The display will show the current password.
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A L 1 A L 2 A L 3 A L 4 Up to four alarm setpoints are provided, depending on the options ordered. Each of these setpoints may be programmed as a high or low setpoint and for standard or failsafe relay operation in Supervisor Setup.
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H Y S Hysteresis may be set in 0.01% increments from 0 to 10% of Full Scale. Attempting to incre- ment past 10% will enable latching for all alarms. The display will show the current hysteresis setting. Press ENTER/SAVE Pressing the INCREASE or DECREASE pushbutton will increase or decrease the hysteresis setting.
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Z E R O This is a calibration function. This function and BarGraph FullScale function are used to calibrate for linear process measurement. They affect the value displayed on the digital display of the BarGraph. For nonlinear process measurement, use the Table function. See Section 3, Calibration, for details.
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F U L L This is a calibration function. This function and BarGraph Zero function are used to calibrate for linear process measurement. They affect the value displayed on the digital display of the BarGraph. For nonlinear process measurement, use the Table function. See Section 3, Calibra- tion, for details.
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B A R This function allows the user to set the bar display format. The most common display format is bottom zero, i.e.; starts at the bottom (or most left for horizontal displays) and increasing up (towards the right for horizontal displays). The BarGraph™ zero point can be located or refer- enced anywhere on or off the scale in this setup.
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B . Z E R O This function will not be enabled or displayed unless barform has been set to Deviation or Variable barform (see Barform function). The BarGraph™ zero display point may be set to a certain display value. This is not a calibration function. It only affects the range of values that the bar display will show.
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O P E R Operator Setup can be enabled or disabled through this function (see page 4). If Operator Setup is disabled, only LampTest is available. The display will show to indicate whether Operator Setup is currently disabled or enabled. Press ENTER/SAVE Pressing the INCREASE or DECREASE pushbutton will set Operator Setup...
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D E C This function is used to set the position of the decimal point on the digital display. The display will show the current display decimal point setting. Options for display decimal settings and the order they appear are shown below. Press ENTER/SAVE Pressing the INCREASE or DECREASE pushbutton will cycle through the...
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B . F I L L B. C OL This function is used to control how the bar display changes color. The function is used to set the colors. Five different regions in the bar display are defined by through •...
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B . C O L This function is used to set the color of the bar display in 5 distinct regions on the bar display. Five different regions in the bar display are defined by through • > • A L 1 A L 2 •...
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The display will show the current setpoint value. The bar shows the color displayed while the bar is in the region Press ENTER/SAVE 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.
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H I . C O L B. F ILL (TriColor). This function is used This function is active only if was set to to set the default color for the setpoints. One segment of the bar display will be illumi- nated in this color at the alarm setpoint values.
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B R I G H This function controls LED brightness. Sixteen settings are available: is the dimmest setting while is the brightest. The factory default setting is The display will show the current LED brightness setting. Press ENTER/SAVE Pressing INCREASE or DECREASE will increment or decrement the LED brightness setting one step.
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D . F L S H During an overrange/underrange condition, the Digital Display may be set to flash. This func- tion is used to enable or disable the flashing of the Digital Display. The display will show to indicate the current state. Press ENTER/SAVE Pressing INCREASE sets flashing...
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Set Calibration Table This is a calibration function which utilizes a table of values to achieve a linear indication, when a non-linear set of signal values defines the process being measured. If this prompt is visible, the ZERO and FULL calibration methods will no longer function and calibration must be performed in accordance with section 3.2.
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A . F U L L This function controls the fullscale value of the analog retransmit signal. It may be set to any value between 0 and 20 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.
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L . T E S T 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. Press All segments of the bar display should be illuminated yellow and the digital ENTER/SAVE 8.
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S G M A L This function defines which signal source will be displayed. There are 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) The display will show the current signal source.
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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. The display will show the current communication ID. Press ENTER/SAVE Pressing the INCREASE or DECREASE pushbutton will increase or decrease...
Calibration Methods The first step in the calibration process is to decide which calibration method will be used. There are two different calibration methods available. Choice of calibration method depends on the process being monitored. The first method involves a simple two-point calibration and is useful for linear process vari- ables.
™ ™ ™ Linear Calibration Procedure 1. To calibrate TriColor Bargraphs, access to Supervisor Setup functions is required. PASS To do this, the function must be accessed and the correct password entered as de- scribed on page 5 of this manual. 2.
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10. Apply the desired Full Scale input value into the BarGraph signal input terminals. Use a calibrated lab-standard. 11. Press INCREASE ( ) or DECREASE ( ) to load the new Full Scale value into the meter. 12. Make sure the desired bar segment and digital display value are correct. Press and release the ENTER pushbutton.
Nonlinear Calibration Commands Due to the amount of information that must be provided for multi-point calibration, the TABLE function has four levels of sub functions. These levels are shown graphically below and each level is described in detail: Level One T A B L E Press ENTER to start multi-point calibration...
™ ™ ™ Nonlinear Calibration Procedure 1. To calibrate a TriColor BarGraph, access to Supervisor Setup functions is required. PASS To do this, the function must be accessed and the correct password entered as de- scribed on page 5 of this manual. 2.
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13. Step the INCREASE ( ) pushbutton to scroll through the setup modes until you return to R U N 14. Press ENTER ( ). At this point, the BarGraph 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.
4.3 BG261TC Physical Dimensions 4.4 BG251TC and BG281TC Physical Dimensions...
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4.5 Terminal Assignments - BG-252TC, BH-252TC, BD-101TC, BV-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)
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4.6 Terminal Assignments: BG-241TC, BG-251TC, BG-261TC and BG-281TC These Terminals May be Used for Loop Power or Analog Retransmit, but the options may not be ordered together. Signal, Input and Output Terminal Assignments Signal, Input or Terminal Assignment Signal, Input or Terminal Assignment Output Type...
4.6 Terminal Connections - BG-241TC, BG-251TC, BG-261TC and BG-281TC POWER COMMUNICATIONS RETRANSMIT RELAY CONTACTS* SIGNAL...
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Press and hold ENTER/SAVE for three seconds = Digital Display = Increase Pushbutton = Decrease Pushbutton = ENTER/SAVE Pushbutton PASS 99999 _9999 Enter Supervisor Setup (if correct password was entered) FSAFE 99999 _9999 FSAFE 99999 _9999 FSAFE 99999 _9999 FSAFE 99999 _9999 BRIGH...
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Entered only from Operator Setup (see Operator Setup) = Digital Display = Increase Pushbutton = Decrease Pushbutton = ENTER/SAVE Pushbutton PASS 99999 _9999 FSAFE 99999 _9999 FSAFE 99999 _9999 FSAFE 99999 _9999 FSAFE 99999 _9999 DELAY 10000 ZERO NOCAL 99999 _9999 FULL NOCAL...
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Previous Page Bottom 0 Center 0 Top 0 Variable Deviation B. Z ERO 99999 _9999 = Digital Display = Increase Pushbutton B. F ULL = Decrease Pushbutton 99999 _9999 = ENTER/SAVE Pushbutton OPER . 0 2 . 0 03 . 0 004 NONE B.
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Previous Page B. F LSH = Digital Display = Increase Pushbutton = Decrease Pushbutton D. F LSH = ENTER/SAVE Pushbutton DIGIT TABLE 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 A.
6. WARRANTY All BarGraph instruments from Weschler Instruments are warranted against defects in material and workmanship for a period of two years from the date of delivery. Weschler Instruments, at its option, will repair or replace all defective instruments returned to it during the warranty period without charge, provided there is no evidence that the equipment was mishandled or abused.
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Bar Display Input Sensitivities (ANSI C39.1) Edgewise: 40 segment LED, 2.5% resolution Frequency (50 Hz to 20 kHz) Level 5 to 250 V p-p 4" height Accuracy 0.1 % of full scale ± 1 count Line Frequency (55 Hz to 65 Hz) Circular: 50 segment LED, 2% resolution Accuracy 0.01 % of full scale ±...
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