<1. Introduction> Introduction Thank you for purchasing the DPharp EJX series • Yokogawa makes no warranty of any kind with pressure transmitter/EJA series pressure regard to this manual, including, but not limited transmitter (“transmitter”). to, implied warranty of merchantability and fitness for a particular purpose.
• When draining condensate from the pressure detector section, take appropriate precautions (e) Modification to prevent the inhalation of harmful vapors and • Yokogawa will not be liable for malfunctions or the contact of toxic process fluids with the skin damage resulting from any modification made or eyes. to this instrument by the customer.
- Use of the product in question in a location not conforming to the standards specified by Yokogawa, or due to improper maintenance of the installation location. - Failure or damage due to modification or repair by any party except Yokogawa or an approved representative of Yokogawa. - Malfunction or damage from improper relocation of the product in question after delivery.
4 to 20 mA DC analog signal. Since Requirements the modulated wave is a communication signal, superimposing it on the normal signal will, [Protocol specification] Yokogawa original protocol from basic principles, cause no error in the DC [Modulation] B urst modulation component of the analog signal. Thus, monitoring...
<2. Connection> Power Supply Voltage and Integral Indicator Display Load Resistance When Powering On When configuring the loop, make sure that the For models with the integral indicator code “D”, the external load resistance is within the range in the display shows all segments in the LCD and then figure below.
<3. Operation> Operation The transmitter is equipped with BRAIN MENU SCREEN Messages communications capabilities, so that range MENU BATTERY A:DISPLAY changes, Tag No. setup, monitoring of self- B:SENSOR TYPE C:BASIC SETUP diagnostic results, and zero point adjustment Menu choices D:AUX SET1 Screen title E:AUX SET2 can be handled remotely via the BT200 BRAIN...
<3. Operation> b. Entering Alphabetic Characters (2) Function Keys The function command carried out by each function Press either the left or right shift key and then an alphanumeric key to enter the desired alphabetic key is displayed directly above the key. character.
4. LCD contrast setting 5. Adjusting printout tone (UTIL) (BT200-P00 only) PARAM 01:MODEL EJX110A-DM FUNCTION SCREEN INITIAL 02:TAG NO. FUNC DATA YOKOGAWA 1.MENU (ESC) 03:SELF CHECK SCREEN 2.UPLOAD TO HHT GOOD 3.DOWNLOAD TO INST 4.PRINT ALL DATA HOME (SET) (ADJ)
<3. Operation> Setting Parameters Using IMPORTANT the BT200 After setting and sending data with the BT200, wait 30 seconds before turning off the 3.2.1 Parameter Usage and Selection transmitter. If it is turned off too soon, the settings Before setting a parameter, please see the following will not be stored in the transmitter. table for a summary of how and when each parameter is used.
Select C10: TAG NO. and press FEED C10:TAG NO. key. YOKOGAWA C20:PRES UNIT F0312.ai C21:PRES LRV Note that the Yokogawa default setting for the 0.00000 kPa DATA DIAG PRNT standard temperature is 4°C (39.2°F). For the Set the new TAG NO. (FIC-1a). units of mmH...
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<3. Operation> b. Setting Calibration Range Lower Range • Entering the range values as LRV>URV Value and Upper Range Value reverses the direction of the output signal (C21: PRES LRV, C22: PRES URV) of 4-20 mA to 20-4 mA corresponding to the calibration range of 0 to 100%.
<3. Operation> (3) Damping Time Constant Setup • Output mode for 4-20 mA output (C30: AMP DAMPING) • Example: Set output mode from Linear to When the instrument is shipped, the damping time Square root. constant is set at 2.00 seconds unless otherwise Use the specified in the order. Follow the procedure below C40:OUTPUT MODE...
<3. Operation> (6) Integral Indicator Scale Setup • Example: Change the low cut setting range The following five displays are available for integral from 10% to 20%, and the low indicators: input pressure* , % of range, user cut mode from LINEAR to ZERO in set scale, input static pressure, and % of static the SQUARE ROOT output mode.
3-10 <3. Operation> a. Display Selection (I10: DISP OUT1) Follow the procedure below to change the settings. Select the variable for the parameter I10: DISP • Example: Set an engineering unit M. OUT1 to display on the integral indicator. Set M. I30:ENGR.UNIT •...
3-11 <3. Operation> d. Setting Static Pressure Unit and Scale (8) Operation Mode Setup (D30: SP UNIT, D33: SP LRV, and D34: SP (D22: REV OUTPUT) URV) This parameter allows the direction of the 4-20 mA Static pressure can be displayed in measured output to be reversed with respect to input.
3-12 <3. Operation> (10) CPU Failure Burnout Direction and (11) Software Write Protect Hardware Write Protect (D55: WRT PROTECT, D56: WRT (D25: BURNOUT) ENABLE, D57: NEW PASSWORD) There are two slide switches on the CPU assembly Transmitter configured data can be saved by the board. One sets the burnout direction at CPU write protect function.
50% to 100% output. function by using general password. Contact Yokogawa about the general password. When • Example: If measurement range is 0 to 10 kPa the password is used, the status shown in the...
3-14 <3. Operation> (14) Range Change while Applying Actual • Example 2: When the upper range value is to Inputs be changed to 10 kPa with the (H10: AUTO P LRV, H11: AUTO P URV) present setting of 0 to 30 kPa, take This feature allows the lower and upper range the following action with an input values to be set up automatically with the actual...
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3-15 <3. Operation> a. Zero Trim (J11: P ZERO ADJ, J15: P ZERO DEV, J55: EXT ZERO ADJ) Transmitter measures pressure of A11:PRES 0.03585 kPa 0.03585 kPa. The transmitter supports several adjustment methods. Select the method best suited for the A pressure of 0 kPa is applied.
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3-16 <3. Operation> a-3. Using External Zero-adjustment Screw b-1. Auto Sensor Trim This method permits zero adjustment without the • Example: For the range of 10 to 30 kPa. BT200. Use a slotted screwdriver to turn the zero- adjustment screw. See the hardware manual for Setting a lower point Transmitter indicates 9.94 kPa as details.
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3-17 <3. Operation> b-2. Manual Sensor Trim c. Sensor Trim for Static Pressure (J21: SP ZERO ADJ, J22: SP SPAN ADJ, • Example: For the range of 10 to 30 kPa. J25: SP ZERO DEV, J26: SP SPAN DEV) J15: P ZERO DEV = –0.04 kPa For the transmitters (Except for EJX120A/EJA120E), J16: P SPAN DEV = –0.03 kPa zeroing and full sensor trim of the static pressure...
3-18 <3. Operation> (16) Test Output Setup (17) Signal Characterizer (K10: OUTPUT X %) This function is used to compensate the output for non-linear applications. The characterized This feature can be used to output a fixed current values are applied to the 4-20 mA output. For for loop checks. The available range for test output the measured pressure, a maximum of nine depends on the setting at parameters D20: OUT coordinates can be specified between 0-100%.
3-19 <3. Operation> (18) Process Alarm • Example: Set the first coordinates (X1, Y1) as (G10: P AL MODE, G11: P HI.AL VAL, (12, 14) in %. G12: P LO.AL.VAL) Set 12 for X1. The function is used to display the alarm codes T22:X1 10.00% Press the...
3-20 <3. Operation> (19) Status Output (option code AL) Example: Status output operation of ON WHEN AL. DETECT This feature is used for a transistor output (open ● Status output for higher alert value collector) of an on/off signal according to the status of high and low alarm limits, which are Output 5%* of hysteresis user-configurable values as shown in (18) Process...
3-21 <3. Operation> (20) Capillary Fill Fluid Density ● EJX118A/EJA118E Compensation (E10: T.ZERO CMP, E11: TEMP ZERO) For transmitters with diaphragm seals, this function Transmitter is used to compensate the zero shift caused by the ambient temperature effect on the capillary tubes. The following equation indicates the relationship ●...
3-22 <3. Operation> (21) Adjustment Information and User 3.3.2 Display Transmitter Model and Memo Fields Specifications (J50: ADJ WHO, J51: ADJ DATE, J52: The BT200 can be used to display the model and ADJ LOC, J53: ADJ DESC, M17 to M19: specifications of the transmitter.
PARAM <50:P ILLEG LRV > display the error message. 01:MODEL EJX110 M result of current transmitter 02:TAG NO. YOKOGAWA diagnostics. <(a) SETUP PANEL> 03:SELF CHECK ERROR For the details of the messages, see Table 4.1 Alarm PARAM Press the (DIAG) key in the Message Summary.
<4. Self-diagnostics> 4.1.2 Checking with Integral Indicator NOTE If an error is detected by running self-diagnostics, an error number is displayed on the integral indicator. If there is more than one error, the error number changes at three-second intervals. F0404.ai See table 4.1 regarding the alarm codes.
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<4. Self-diagnostics> Output operation Indicator BT200 display Cause Countermeasure during error AL. 50 50: P ILLEG LRV Specified value is outside of Holds output Check settings and P. LRV setting range. immediately before change them as needed. error occurred. AL. 51 51: P ILLEG URV P.
<5. Parameter Summary> Parameter Summary Instruments to which applicable: F: Differential pressure transmitters P: Absolute and gauge pressure transmitters L: Flange mounted differential pressure transmitters Applicable model Parameter name Item Content Default value MODEL Model EJX (for EJX series) — EJA (for EJA series) TAG No. Tag number As specified —...
<5. Parameter Summary> Applicable model Parameter name Item Content Default value AUX SET 1 Auxiliary setting data 1 D10 LOW CUT Low cut 0.00 to 20.00% 10.00% LOW CUT MODE Low cut mode LINEAR or ZERO LINEAR ...
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<5. Parameter Summary> Applicable model Parameter name Item Content Default value ALARM SET Alarm setting G10 P AL MODE Alert mode INHIBIT, HI. AL DETECT, LO. INHIBIT — AL DETECT, or HI/LO. AL DETECT G11 P HI. AL VAL High side alert value -32000 to 32000, unit 100.000 kPa...
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<5. Parameter Summary> Applicable model Parameter name Item Content Default value ADJUST Adjusting data ADJ UNIT Pressure adjusting unit select % or PRES UNIT PRES UNIT — ADJ PRES Adjustment reference pressure Unit specified in J09 — P ZERO ADJ Automatic zero adjustment -32000 to 32000, unit...
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<5. Parameter Summary> Applicable model Parameter name Item Content Default value M20 ISOL MATL Capsule material — M21 FILL FLUID Fill fluid — M22 GASKET MATL Gasket material — M23 PRO CON MATL Flange material —...
Yokogawa. (Website address: https://www.yokogawa.com/solutions/products-platforms/field-instruments/) In order to satisfy the requirement of Safety Instrumented System, executing parameters setting is required. Please refer to 3.2 “Setting Parameters Using the BT200” for setting range.
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Rev-1 Revision Information Title : DPharp BRAIN Communication Type Manual No. : IM 01C25T03-01E Edition Date Page Revised Item Apr. 2004 — New publication. Oct. 2004 3-19 3.2.3(20) • Add capillary fill fluid density compensation setting procedure. Aug. 2009 3.2.3(5) • Add example for hysteresis. 3-14 3.2.3(15) •...
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