BRAIN TERMINAL BT200 Operation. YOKOGAWA EJA 440A, EJA 430A, EJA 310A
Below you will find brief information for Pressure Transmitter EJA310A, Pressure Transmitter EJA430A, Pressure Transmitter EJA440A. The EJA-A Series pressure transmitters are a versatile and reliable solution for a wide range of pressure measurement applications. These transmitters are designed for use in demanding industrial environments and offer a number of features that make them ideal for a variety of applications.
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(2) Flameproof Type
Wire cables through a flameproof packing adapter, or using a flameproof metal conduit.
■ Wiring cable through flameproof packing adapter.
• Apply a nonhardening sealant to the terminal box connection port and to the threads on the flameproof packing adapter for waterproofing.
Flameproof packing adapter
Flexible metal conduit
Wiring metal conduit
Apply a non-hardening sealant to the threads for waterproofing.
Tee
Drain plug
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Figure 6.8 Typical Cable Wiring Using Flameproof
Packing Adapter
■ Flameproof metal conduit wiring
• A seal fitting must be installed near the terminal box connection port for a sealed construction.
• Apply a non-hardening sealant to the threads of the terminal box connection port, flexible metal conduit and seal fitting for waterproofing.
Gas sealing device
Non-hazardous area
Flameproof flexible metal conduit
Hazardous area
Flameproof heavy-gauge steel conduit
Apply a non-hardening sealant to the threads of these fittings for waterproofing
Tee
Drain plug
Seal fitting
After wiring, impregnate the fitting with a compound to seal tubing.
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Figure 6.9 Typical Wiring Using Flameproof Metal
Conduit
<6. Wiring>
6-3
6.5 Grounding
Grounding is always required for the proper operation of transmitters. Follow the domestic electrical requirements as regulated in each country. For a transmitter with built-in lightning protector, grounding should satisfy ground resistance of 10Ω or less.
Ground terminals are located on the inside and outside of the terminal box. Either of these terminals may be used.
Transmitter terminal box
Ground terminal
(Inside)
Ground terminal
(Outside)
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Figure 6.10 Ground Terminals
6.6 Power Supply Voltage and
Load Resistance
When configuring the loop, make sure that the external load resistance is within the range in the figure below.
(Note) In case of an intrinsically safe transmitter, external load resistance includes safety barrier resistance.
600
External load resistance
R (Ω)
250
Communication applicable range
BRAIN and HART
0 10.5 16.4
24.7
Power supply voltage E (V DC)
42
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Figure 6.11 Relationship between Power Supply
Voltage and External Load Resistance
IM 01C21D01-01E
7. Operation
7.1 Preparation for Starting
Operation
The Model EJA310A, EJA430A and EJA440A pressure transmitter measures the pressure of liquids, gases, and steam. This section describes the operation procedure for the EJA430A as shown in Figure 7.1 (vertical impulse piping type, highpressure connection: right side) when measuring a pressure.
NOTE
Confirm that the process pressure tap valve, drain valve, and stop valve are closed.
(a) Introduce a process fluid into the impulse piping and then to the transmitter in the following procedure:
1) Open the tap valve (main valve) to fill the impulse piping with process fluid.
2) Gradually open the stop valve to introduce process fluid into the transmitter pressuredetector section.
3) Confirm that there is no pressure leak in the impulse piping, transmitter, or other components.
(b) Venting Gas from the Transmitter Pressuredetector Section
Since the piping in the example of Figure 7.1 is constructed to be self-venting, no venting operation is required. If it is not possible to make the piping self-venting, refer to
Subsection 7.5 for instructions.
(c) Turn ON power and connect the BT200.
Open the terminal box cover, and connect the
BT200 to the SUPPLY + and – terminals.
(d) Using the BT200, confirm that the transmitter is operating properly. Check parameter values or change the setpoints as necessary. See
Chapter 8 for BT200 operation.
If the transmitter is equipped with an integral indicator, its indication can be used to confirm that the transmitter is operating properly.
Vent plug (Fill plug)
<7. Operation>
Stop valve
Tap valve
7-1
Drain valve
Figure 7.1 Liquid Flow Measurement
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Confirming that Transmitter is Operating
Properly
Using the BT200
• If the wiring system is faulty, ‘communication error’ appears on the display.
• If the transmitter is faulty, ‘SELF CHECK
ERROR’ appears on the display.
C60:SELF CHECK
ERROR communication error
Communication error
(Faulty wiring)
DATA DIAG PRNT
Self-diagnostic error
(Faulty transmitter)
ESC
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Using the integral indicator
• If the wiring system is faulty, the display stays blank.
• If the transmitter is faulty, an error code will appear on the display according to the nature of the error.
Self-diagnostic error on the integral indicator
(Faulty transmitter)
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NOTE
If any of the error indications above appears on the display of the integral indicator or BT200, refer to Subsection 8.5.2 for corrective action.
Verify and Change Transmitter
Parameter Setting and Values
The following parameters are the minimum settings required for operation. The transmitter has been shipped with these parameters. To confirm or change the values, see Subsection 8.3.3.
• Measuring range … See Subsection 8.3.3 (2)
• Operation mode … See Subsection 8.3.3 (7)
<7. Operation>
7-2
7.2 Zero Point Adjustment
Adjust the zero point after operating preparation is completed.
IMPORTANT
Do not turn off the power to the transmitter immediately after a zero adjustment. Powering off within 30 seconds after a zero adjustment will return the adjustment back to the previous settings.
The zero point adjustment can be made in either way: using the zero-adjustment screw of the transmitter or the BT200 operation.
For output signal checking, display the parameter
A10: OUTPUT (%) in the BT200.
BT200
A10:OUTPUT(%)
A11:ENGR OUTPUT
A20:AMP TEMP
Output signal (%) display
DATA DIAG PRNT ESC
Zero-adjustment Screw
Zero-adjustment screw
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After reviewing this parameter you are prepared to adjust the zero point. When making the zero adjustment on a pressure transmitter, the process pressure value does not have to be set to the low limit of the measurement range (0%). In such case, adjust the transmitter output signal to the actual measured value obtained from a high-accuracy pressure measuring instrument.
IM 01C21D01-01E
7.2.1 When you can obtain Low Range
Value from actual measured value of
0% (0 kPa, atmospheric pressure);
For pressure measurement using gauge pressure transmitters, follow the step below before zero point adjustment.
1) Close the tap valve (main valve).
2) Loosen the fill plug so that the pressure applied to the transmitter is only the head of the seal liquid.
3) Adjust the zero point at this status.
4) After the adjustment, close the fill plug and then gradually open the tap valve.
Using the Transmitter Zero-adjustment
Screw
Before adjusting a screw, check that the parameter
J20: EXT ZERO ADJ displays ENABLE. See
Subsection 8.3.3 (11) for the setting procedure.
Use a slotted screwdriver to turn the zeroadjustment screw. Turn the screw clockwise to increase the output or counterclockwise to decrease the output. The zero point adjustment can be made with a resolution of 0.01% of the setting range. Since the degree of zero adjustments varies with the screw turning speed, turn the screw slowly for fine adjustment and quickly for coarse adjustment.
Using the BT200
Zero point can be adjusted by simple key operation of the BT200.
Select parameter J10: ZERO ADJ, and press the
ENTER key twice. The zero point will be adjusted automatically to the output signal 0% (4 mA DC).
Confirm that the setting value displayed for the parameter is ‘0.0%’ before pressing the ENTER key. See Subsection 8.3.3 (11) for BT200 operating procedures.
SET
J10:ZERO ADJ
A display when parameter
J10 is selected.
Press key twice for 0% output 4 mA DC.
CLR ESC
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<7. Operation>
7-3
7.2.2 When you cannot obtain Low Range
Value from actual measured value of
0%;
Convert the actual measured value obtained by a digital manometer or a glass gauge into %.
[Example]
The measuring range of 50 to 250 kPa; the actual measured value of 130 kPa.
Actual measured value=
130–50
250–50 x 100=40.0%
Using the Transmitter Zero-Adjustment
Screw
Turn the screw to match the output signal to the actual measured value in %.
Using the BT200
Select the parameter
J10: ZERO ADJ. Change the set point (%) displayed for the parameter to the actual measured value (%), and press the ENTER key twice. See Subsection 8.3.3 (11) for operation details.
SET
J10:ZERO ADJ
-0.0 %
+ 000.0
A display at J10
CLR ESC
J10:ZERO ADJ
+ 040.0
CLR ESC
Change setting to the actually measured value (40.0%).
Press key twice for 40% output 10.4 mA DC.
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7.3 Starting Operation
After completing the zero point adjustment, follow the procedure below to start operation.
1) Confirm the operating status. If the output signal exhibits wide fluctuations (hunting) due to periodic variation in the process pressure, use BT200 to dampen the transmitter output signal. Confirm the hunting using a receiving instrument or the integral indicator, and set the optimum damping time constant. See
Subsection 8.3.3 (3), “Damping Time Constant
Setup.”
2) After confirming the operating status, perform the following.
IMPORTANT
• Remove the BT200 from the terminal box, and confirm that none of the terminal screws are loosened.
• Close the terminal box cover and the amplifier cover. Screw each cover in tightly until it will not turn further.
• Two covers are required to be locked on the CENELEC and IECEx Flameproof type transmitters. An Allen head bolts (shrouding bolts) are provided under edge of the each cover for locking. When a shrouding bolts are driven counterclockwise by an
Allen wrench, it is coming out and locks up a cover. (See page 9-3) After locking, the covers should be confirmed not to be opened by hand.
• Tighten the zero-adjustment cover mounting screw to fix the cover in position.
<7. Operation>
7.4 Shutting Down Operation
Shut down the transmitter operation as follows.
1) Turn off the power.
2) Close the stop valve.
3) Close the tap valves.
7-4
NOTE
Whenever shutting down the transmitter for a long period, remove any process fluid from the transmitter pressure-detector section.
7.5 Venting or Draining
Transmitter Pressuredetector Section
Since this transmitter is designed to be selfdraining and self-venting with vertical impulse piping connections, neither draining nor venting will be required if the impulse piping is configured appropriately for self-draining or self-venting operation.
If condensate (or gas) collects in the transmitter pressure-detector section, the measured pressure may be in error. If it is not possible to configure the piping for self-draining (or self-venting) operation, you will need to loosen the drain (vent) screw on the transmitter to completely drain (vent) any stagnated liquid (gas).
However, since draining condensate or bleeding off gas gives the pressure measurement disturbance, this should not be done when the loop is in operation.
WARNING
Since the accumulated liquid (or gas) may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors.
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7.5.1 Draining Condensate
1) Gradually open the drain screw or drain plug and drain the transmitter pressure-detector section. (See Figure 7.2)
2) When all accumulated liquid is completely removed, close the drain screw or drain plug.
3) Tighten the drain screw to a torque of 10 N·m, and the drain plug to a torque of 34 to 39 N·m.
Drain plug
Drain screw
When you loosen the drain screw or drain plug, the accumulated liquid will be expelled in the direction of the arrow.
Figure 7.2 Draining the Transmitter
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7.5.2 Venting Gas
1) Gradually open the vent screw to vent gas from the transmitter pressur-detector section. (See
Figure 7.3)
2) When the transmitter is completely vented, close the vent screw.
3) Tighen the vent screw to a torque of 10 N·m.
Vent screw
Vent screw
When you loosen the vent screw, the gas escpes in the direction of the arrow.
Figure 7.3 Venting the Transmitter
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<7. Operation>
7-5
7.6 Setting the Range Using the
Range-setting Switch
With actual pressure being applied to the transmitter, the range-setting switch (push-button) located on the optional integral indicator plate and the external zero-adjustment screw allow users to change (re-range) the low- and high-limit values for the measurement range (LRV and HRV) without using BT200. However, other changes in the display settings (scale range and engineering unit) for the integral indicator requires BT200.
Follow the procedure below to change the LRV and
HRV settings.
[Example]
Rerange LRV to 0 and HRV to 3 MPa.
1) Connect the transmitter and apparatus as shown in Figure 9.1 and warm up for at least five minutes.
2) Press the range-setting push-button.
The integral indicator then displays “ LSET.”
3) Apply a pressure of 0 kPa (atmospheric pressure) to the transmitter. (Note 1)
4) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %. (Note 2)
5) Adjust the output signal to 0% (1 V DC) by rotating the external zero-adjustment screw.
Doing so completes the LRV setting.
6) Press the range-setting push-button. The integral indicator then displays “ HSET.”
7) Apply a pressure of 3 MPa to the transmitter.
(Note 1)
8) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %. (Note 2)
9) Adjust the output signal to 100% (5 V DC) by rotating the external zero-adjustment screw.
Doing so completes the HRV setting.
10) Press the range-setting push-button. The transmitter then switches back to the normal operation mode with the measurement range of
0 to 3 MPa.
Note 1: Wait until the pressure inside the pressure-detector section has stabilized before proceeding to the next step.
Note 2: If the pressure applied to the transmitter exceeds the previous LRV (or HRV), the integral indicator may display error number “Er.07” (In this case, the output signal percent and “Er.07” are displayed alternately every two seconds).
Although “Er.07” is displayed, you may proceed to the next step. However, should any other error number be displayed, take the appropriate measure in reference to
Subsection 8.5.2, “Errors and Countermeasures.”
IM 01C21D01-01E
IMPORTANT
• Do not turn off the power to the transmitter immediately after completion of the change in the LRV and/or HRV setting(s). Note that powering off within thirty seconds after setting will cause a return to the previous settings.
• Changing LRV automatically changes HRV to the following value.
HRV = previous HRV + (new LRV – previous LRV)
• If the range-setting push-button and external zero-adjustment screw are not touched during a range-change operation, the transmitter automatically switches back to the normal operation mode.
Integral indicator
Note : Use a thin bar which has a blunt tip, e.g., a hexagonal wrench, to press the rangesetting push-button
Range-setting switch
(Push-button)
Figure 7.4 Range-setting Switch
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<7. Operation>
7-6
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<8. BRAIN TERMINAL BT200 Operation>
8. BRAIN TERMINAL BT200 Operation
8-1
The DPharp is equipped with BRAIN communications capabilities, so that range changes, Tag No. setup, monitoring of selfdiagnostic results, and zero point adjustment can be handled by remote control via BT200 BRAIN
TERMINAL or CENTUM CS console. This section describes procedures for setting parameters using the BT200. For details concerning the BT200, see
IM 01C00A11-01E, “BT200 User’s Manual.”
8.1 BT200 Operation
Precautions
8.1.1 Connecting the BT200
The transmitter and the BT200 can be connected either to the BT200 connection hooks in the transmitter terminal box or to a relaying terminal board.
• Note for Connecting the BT200
IMPORTANT
• Analog output may change temporally in connecting with BRAIN terminal due to an initial current flowed to it. To prevent communication signal affecting the upper system, it is recommended to install a lowpass filter (approximately 0.1s).
• Communication signal is superimposed on analog output signal. It is recommended to set a low-pass filter (approximately
0.1s) to the receiver in order to reduce the output effect from communication signal.
Before online-communication, confirm that communication signal does not give effect on the upper system.
Relaying terminals
Control room
Terminal board
Figure 8.1 Connecting the BT200
Distributor
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8.1.2 Conditions of Communication Line
• Communication Line Requirements
[Protocol specification] Yokogawa original protocol
[Modulation] Burst modulation
0: 2400Hz
1: Signal without carrier
[Baud rate] 1200bps
[Communication signal] host to device: +/- 0.5V (load resistance 250Ω) device to host: +/- 2mA
Cable resistance Rc
Power supply cc
Load resistance R
Cable resistance Rc
DPharp
● Loop resistance = R + 2Rc
= 250 to 600Ω
● Loop capacitance = 0.22 µF max.
BT200
Figure 8.2 Conditions of Communication Line
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8.2 BT200 Operating Procedures
8.2.1 Key Layout and Screen Display
Figure 8.3 shows the arrangement of the operating keys on the BT200 keypad, and Figure 8.4 shows the BT200 screen component.
<8. BRAIN TERMINAL BT200 Operation>
8-2
8.2.2 Operating Key Functions
(1) Alphanumeric Keys and Shift Keys
You can use the alphanumeric keys in conjunction with the shift keys to enter symbols, as well as alphanumeric keys.
LCD
(21 character × 8 lines)
Alphanumeric keys
Function keys
Movement keys
ENTER key
Power ON/OFF key
Alphanumeric keys
Shift keys
Figure 8.3 BT200 Key Layout
MENU SCREEN
BATTERY
A:DISPLAY
B:SENSOR TYPE
Screen title
Parameters
HOME SET ADJ ESC
PARAMETER SCREEN
PARAM
A10:OUTPUT
A11:ENGR. OUTPUT
1000 mmH20
A20:AMP TEMP
23 deg C
DATA DI AG PRNT
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Messages
Menu choices
Function commands
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Figure 8.4 BT200 Screen Component
Shift keys
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a. Entering Digits, Symbols, and Spaces
Simply press the alphanumeric keys.
Key-in Sequence Entry
–4
0.3
1 –9
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b. Entering Letters (A through Z)
Press an alphanumeric key following a shift key to enter the letter shown on that side which the shift key represents. You must press the shift key before entering each letter.
Left-side letter on the alphanumeric key
Right-side letter on the alphanumeric key
Entry
W
IC
Key-in Sequence
J. B
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Use the function key [F2]
CAPS
to select between uppercase and lowercase (for letters only). The case toggles between uppercase and lowercase each time you press [F2] CAPS.
Entering uppercase
CODE CAPS CLR ESC
Entering lowercase
CODE caps CLR ESC
Entry
Boy
( B )
Key-in Sequence
to lower case
( o ) ( y )
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Use the function key [F1]
CODE
to enter symbols.
The following symbols will appear in sequence, one at a time, at the cursor each time you press [F1]
CODE:
/ . − , + * ) ( ’ & % $ # ” !
To enter characters next to these symbols, press [>] to move the cursor.
Entry Key-in Sequence
symbol command l/m
( I ) ( / ) ( m )
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(2) Function Keys
The functions of the function keys depend on the function commands on display.
MENU
B:SENSOR TYPE
<8. BRAIN TERMINAL BT200 Operation>
HOME SET ADJ ESC
Function commands
Function keys
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Function Command List
OK
PARM
SET
SLOT
UTIL
*COPY
*FEED
*LIST
*PON/
POFF
*PRNT
*GO
*STOP
Command
ADJ
Function
Displays the ADJ menu
CAPS/caps Selects uppercase or lowercase
CODE
CLR
Selects symbols
Erases input data or deletes all data
DATA
DEL
DIAG
ESC
HOME
NO
Updates parameter data
Deletes one character
Calls the self-check panel
Returns to the most recent display
Displays the menu panel
Quits setup and returns to the previous display
Proceeds to the next panel
Enters the parameter number setup mode
Displays the SET menu
Returns to the slot selection panel
Calls the utility panel
Prints out parameters on display
Paper feed
Lists all parameters in the menu
Automatic printout mode on or off
Changes to the print mode
Starts printing
Cancels printing
* Available on BT200-P00 (with printer).
8-3
IM 01C21D01-01E
<8. BRAIN TERMINAL BT200 Operation>
8.2.3 Calling Up Menu Addresses Using the Operating Keys
STARTUP
SCREEN
--WELCOME--
ID: BT200 check connection push ENTER key
UTIL FEED
UTILITY
1.ID
2.SECURITY CODE
3.LANGUAGE SELECT
4.LCD CONTRAST
5.PRINTER ADJUST
(UTIL) esc
The utility screen contains the following items.
1. BT200 ID settings
2. Security code settings
3. Switching language of messages
(Japanese or English)
4. LCD contrast setting
5. Adjusting printout tone
(BT200-P00 only)
INITIAL
DATA
SCREEN
01:MODEL
EJA430A-DA
02:TAG NO.
YOKOGAWA
03:SELF CHECK
GOOD
OK
MENU
SCREEN
(HOME MENU SCREEN)
MENU
B.SENSOR TYPE
HOME SET ADJ ESC
(ESC)
(SET)
(SET MENU SCREEN)
MENU
C.SETTING
D.AUX SET 1
H:AUTO SET
1.MENU
2.UPLOAD TO BT200
3.DOWNLOAD TO INST
4.PRINT ALL DATA
HOME SET ADJ ESC
(ADJ)
(ADJ MENU SCREEN)
MENU
J.ADJUST
K.TEST
P:RECORD
HOME SET ADJ ESC HOME SET ADJ ESC
8-4
A60:SELF CHECK
GOOD
PARA-
METER
SCREEN
DATA DIAG PRNT
PARAM
A10:OUTPUT(%)
DATA DIAG PRNT
20.0 M
A20:AMP TEMP
24.5 deg C
DATA DIAG PRNT
ESC
ESC
ESC
C60:SELF CHECK
GOOD
DATA DIAG PRNT
PARAM
C10:TAG NO.
DATA DIAG PRNT
kPa
C21:LOW RANGE
0 kPa
DATA DIAG PRNT
ESC
ESC
ESC
J60:SELF CHECK
GOOD
PARAM
J10:ZERO ADJ
DATA DIAG PRNT
22.2 %
J20:EXT. ZERO ADJ
ENABLE
DATA DIAG PRNT
ESC
ESC
SETUP
SCREEN
SET
C10:TAG NO.
YOKOGAWA
YOKOGAWA
CODE CAPS CLR ESC
See “BT200 Instruction Manual” for details concerning uploading and downloading parameters and printouts (BT200-P00).
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<8. BRAIN TERMINAL BT200 Operation>
8.3 Setting Parameters Using the BT200
8.3.1 Parameter Summary
Instruments to which applicable:
F: Differential pressure transmitters
P: Pressure transmitters
L: Liquid level transmitters
EJA110A, EJA120A, and EJA130A
EJA310A, EJA430A, EJA440A, EJA510A, and EJA530A
EJA210A and EJA220A
8-5
No.
Item Description
01 MODEL
02 TAG NO.
03 SELF CHECK
A DISPLAY
A10 OUTPUT (%)
Model+capsule type
Tag number
Self-diagnostic result
Measured data display
Output (in %)
A11 ENGR. OUTPUT Output (in engineering units)
A20 AMP TEMP Amplifier temperature
A21 CAPSULE
TEMP
Capsule temperature
A30 STATIC PRESS Static pressure
A40 INPUT
A60 SELF CHECK
Input (indicated as the value after zeroing)
Self-diagnostic messages
B SENSOR TYPE Sensor type
B10 MODEL Model+span
B11 STYLE NO.
B20 LRL
B21 URL
B30 MIN SPAN
B40 MAX STAT.P.
B60 SELF CHECK
C SETTING
C10 TAG. NO.
C20 PRESS UNIT
C21 LOW RANGE
Style number
Lower range-limit
Upper range-limit
Minimum span
Maximum static pressure*
Self-diagnostic messages
Setting data
Tag number
Measurement range units
6
Measurement range, lower range value
C22 HIGH RANGE Measurement range, higher range value
C30 AMP DAMPING Damping time constant
C40 OUTPUT MODE Output mode and integral
C60 SELF CHECK indicator mode
Self-diagnostic messages
–
–
–
–
–
–
–
–
–
Rewritability
–
–
–
–
–
–
–
–
Remarks
16 alphanumerics
GOOD/ERROR
Menu name
–5 to 110%* 3
–19999 to 19999
Unit specified in D30
Unit specified in D30
–
–
–
Unit specified in D31* 1
–32000 to 32000
–
Default Value
–
GOOD/ERROR, CAP MODULE FAULT, AMP
MODULE FAULT, OUT OF RANGE, OUT OF SP
RANGE* 1 , OVER TEMP (CAP), OVER TEMP (AMP),
OVER OUTPUT, OVER DISPLAY, ILLEGAL LRV,
ILLEGAL HRV, ILLEGAL SPAN, and ZERO ADJ OVER
Menu name
16 uppercase alphanumerics
–32000 to 32000
–32000 to 32000
–32000 to 32000
–
Same as A60
Menu name
16 alphanumerics
Selected from mmH
2
O, mmAq, mmWG, mmHg, Torr,
Pa, hPa, kPa, MPa, mbar, bar, gf/cm 2 , kgf/cm 2 , inH
2
O, inHg, ftH
2
O, psi, or atm
–32000 to 32000(but within measurement range)
–32000 to 32000(but within measurement range)
Selected from 0.2* 2 , 0.5, 1.0,
2.0, 4.0, 8.0, 16.0, 32.0, or
64.0 sec.
Selected from OUT:LIN; DSP:
LIN, OUT:LIN; DSP:SQR,
OUT:SQR; DSP:SQR
As specified when ordered.
As specified when ordered.
As specified when ordered.
As specified when ordered.
2.0 s
As specified when ordered.
If not specified, OUT:
LIN; DSP: LIN.
Same as A60
– –
Applicability
F P L
IM 01C21D01-01E
<8. BRAIN TERMINAL BT200 Operation>
No.
Item Description
D AUX SET 1
D10 LOW CUT
Auxiliary setting data 1
Low cut
D11 LOW CUT
MODE
D15 OUT LIMIT(L)
Low cut mode
Lower output range-limit
D16 OUT LIMIT(H) Upper output range-limit
D20 DISP SELECT Display selection
D21 DISP UNIT
D22 DISP LRV
D23 DISP HRV
D30 TEMP UNIT
D31 STAT. P. UNIT
D40 REV OUTPUT Output reversal
D45 H/L SWAP
D52 BURN OUT
D53 ERROR OUT
Impulse piping accessing direction
CPU error
Hardware error
D60 SELF CHECK
E AUX SET 2
Self-diagnostic messages
Auxiliary setting data 2
E10 DFS MODE
E50 AUTO
RECOVER
E60 SELF CHECK
H AUTO SET
H10 AUTO LRV
DFS mode
E14 TEMP SELECT Reference temperature sensor
E15 TEMP ZERO Zero shift conpensation setup
E30 BI DIRE MODE Bidirectional mode
Auto-recover from sensor error
Self-diagnostic messages
Automatic setup
H11 AUTO HRV
H60 SELF CHECK
J ADJUST
Automatic measurement range lower range value setup
Automatic measurement range higher range value setup
Self-diagnostic messages
J10 ZERO ADJ
J11 ZERO DEV.
J15 SPAN ADJ
Adjustment data
Automatic zero adjustment
Manual zero adjustment
Manual span adjustment
J20 EXT. ZERO ADJ External zero-adjustment screw permission
J30 AOUTPUT 4mA 4mA adjustment
J31 OUTPUT 20mA 20mA adjustment
J60 ASELF CHECK Self-diagnostic messages
K TEST Tests
K10 OUTPUT in % Test output % setting
K60 SELF CHECK Self-diagnostic messages
Engineering unit for display
Engineering range, lower range value
Engineering range, higher range value
Temperature setting units
Static pressure setting units
–
–
Rewritability
–
–
–
–
Remarks
Menu name
0.0 to 20.0%
LINEAR/ZERO
HIGH/LOW, –5 to 110%* 3
HOLD/HIGH/LOW,
–5 to 110%* 3
Same as A60
Menu name
OFF/ON* 5
AMP. TEMP/CAP. TEMP* 5
ON
CAP. TEMP
0.00
Default Value
10.0%
LINEAR
–5.0 to 110.0%
–5.0 to 110.0%
NORMAL %/USER SET,
USER & %/INP PRES, PRES
& %
8 uppercase alphanumerics
–19999 to 19999
–5.0%*
110.0%
7
As specified when ordered.
–19999 to 19999 deg C/deg F
Selected from mmH
2
O, mmAq, mmWG, mmHg, Torr,
Pa, hPa, kPa, MPa, mbar, bar, gf/cm 2 , kgf/cm 2 , inH
2
O, inHg, ftH
2
O, psi, or atm
NORMAL/REVERSE
NORMAL/REVERSE* 4
As specified when ordered.
As specified when ordered.
deg C
As specified when ordered. If not specified, MPa.
If not specified,
NORMAL.
NORMAL
HIGH
HIGH
±10.00* 5
OFF/ON
OFF/ON
OFF
ON
–
–
Same as A60
Menu name
–32000 to 32000
–32000 to 32000
Displays the same data as C21.
Displays the same data as C22.
Same as A60
Menu name
–5 to 110.0%* 3
0.00%
–
–
–
–10.00 to 10.00%
ENABLE/INHIBIT
–10.00 to 10.00%
–10.00 to 10.00%
Same as A60
Menu name
–5 to 110.0%* 3 Displays
‘ACTIVE’ while executing
Same as A60
0.00%
0.00%
–
– –
–
–
–
– –
8-6
Applicability
F P L
IM 01C21D01-01E
<8. BRAIN TERMINAL BT200 Operation>
8-7
No.
Item Description
Rewritability
Remarks Default Value
M MEMO
M10 MEMO 1
M20 MEMO 2
M30 MEMO 3
Memo
Memo
Memo
Memo
M40 MEMO 4
M50 MEMO 5
Memo
Memo
M60 SELF CHECK Self-diagnostic messages
P RECORD History of the errors
P10 ERROR REC 1 Last error
P11 ERROR REC 2
P12 ERROR REC 3
P13 ERROR REC 4
P60 SELF CHECK
One time before
Two time before
Three time before
Self-diagnostic messages
–
–
–
–
Menu name
8 uppercase alphanumerics
8 uppercase alphanumerics
8 uppercase alphanumerics
8 uppercase alphanumerics
8 uppercase alphanumerics
Same as A60
Display the error
Display the error
Display the error
Display the error
Same as A60
*1: In case of Model EJA120A, static pressure cannot be measured. The display is always 0 MPa, but this is not a measured value.
*2: When Optional code /F1 is specified, substitute the value with 0.1.
*3: When Optional code /F1 is specified, substitute the value –5 with –2.5.
*4: Not applicable for Model EJA115.
*5: Applicable only for Model EJA118W, EJA118N, EJA118Y, EJA438W, and EJA438N.
*6: See MWP(max. working pressure) on the nameplate. B40 shows an approximate value of maximum pressure for the capsule.
*7: Unless otherwise specified by order. When optional code /F1 is specified, substitute the value –5 with –2.5.
Applicability
F P L
IM 01C21D01-01E
8.3.2 Parameter Usage and Selection
Before describing the procedure for setting parameters, we present the following table showing how the parameters are used and in what case.
<8. BRAIN TERMINAL BT200 Operation>
IMPORTANT
8-8
If the transmitter is turned off within 30 seconds after parameters have been set, the set data will not be stored and the terminal returns to previous settings.
Table 8.1 Parameter Usage and Selection
Setup Item
Tag No. setup
P. 8-9
Calibration range setup
P. 8-9
Damping time constant setup
P. 8-10
Output signal low cut mode setup
P. 8-11
Change the output limits
P. 8-11
Integral indicator scale range and unit setup
P. 8-11
Description
Sets the Tag No. (using 16 alphanumeric characters).
Note: Up to 8 alphanumerics (upper case letters) can be used in the BT100.
Sets the calibration range for 4 to 20 mA DC. Sets three data items: range unit, input value at 4 mA DC (LRV), and input value at 20 mA DC (HRV).
Note: LRV and HRV can be specified with range value specifications up to 5 digits (excluding any decimal point) within the range of –32000 to 32000.
Adjusts the output response speed for 4 to 20 mA DC.
Can be set in 9 increments from 0.2 to 64 s.
Used mainly to stabilize output near 0% if output signal is the square root mode.
Two modes are available: forcing output to 0% for input below a specific value, or changing to proportional output for input below a specific value.
Change the range of normal output.
Sets the following 5 types of integral indicator scale ranges and units:
% scale indicator, user set scale indicator, alternate indication of user set scale and
% scale, input pressure display, alternate indication of input pressure and % scale
When using the user set scale, 4 types of data can be set:
user set scale setting, unit (BT200 only), display value at 4 mA DC (LRV), and display value at 20 mA DC (HRV).
Note: LRV and HRV can be specified with range value specifications up to 5 digits (excluding any decimal point) within the range of –19999 to 19999.
Sets a unit for temperatures displayed on the BT200.
Unit setup for displayed temperature
P. 8-13
Operation mode (normal/ reverse signal) setup
P. 8-13
Output status display/setup when a CPU failure
P. 8-13
Output status setup when a hardware error occurs
P. 8-14
Range change (while applying actual inputs)
P. 8-14
Zero point adjustment
P. 8-15
Span adjustment
P. 8-16
Test output (fixed current output) setup
P. 8-17
User memo fields
P. 8-17
Reverses the direction for 4 to 20 mA DC output relative to input.
Reverse mode is used for applications in which safety requires that output be driven toward 20 mA if input is lost.
Displays the status of 4 to 20 mA DC output when a CPU failure. The parameter of the standard unit is fixed to the high limit value.
Sets the status of the 4 to 20 mA DC output when an abnormal status is detected with the capsule or the amplifier as the result of self-diagnosis. One of the following statuses; last held, high limit, and low limit values, can be selected.
Range for 4 to 20 mA DC signal is set with actual input applied. Sets 20 mA DC output precisely with respect to user’s reference instrument output. Note that DPharp is calibrated with high accuracy before shipment, so span should be set using the normal range setup.
Adjusts zero point. This can be done either using the external zero-adjustment screw on the transmitteror using the BT200.
Adjust the characterization curve. All the transmitters are calibrated at factory and this adjustment is normally not necessary for most cases. Use for specific purposes.
Used for loop checks.
Output can be set freely from –5% to 110% in 1% steps.
Allows user to enter up to 5 items of any desired text in up to 8 uppercase alphanumeric characters per item.
IM 01C21D01-01E
8.3.3 Setting Parameters
Set or change the parameters as necessary. After completing these, do not fail to use the “DIAG” key to confirm that “GOOD” is displayed for the selfdiagnostic result at _ 60: SELF CHECK.
(1) Tag No. Setup
(C10: TAG NO)
Use the procedure below to change the Tag No. Up to 16 alphanumeric characters can be entered.
<8. BRAIN TERMINAL BT200 Operation>
C10:TAG NO.
FIC-1a _
Set TAG NO. and press the
key.
CODE caps CLE ESC
When you have made an entry mistake, return the cursor using the key, then reenter.
• Example: Set a Tag No. to FIC-1a
Press the key to turn on the BT200.
<When power is off>
BRAIN TERMINAL
ID: BT200 check connection push ENTER key
UTIL FEED
PARAM
01:MODEL
EJA430A-DM
02:TAG NO.
03:SELF CHECK
GOOD
A:DISPLAY
B:SENSOR TYPE
OK
Connect DPharp and BT200 using a communication cable and
press the key.
Displays the name of connected
DPharp model, TAG NO. and diagnostics information. Press the
(OK) key after confirmation.
Press the (SET) key to display the SET menu panel.
HOME SET ADJ ESC
C:SETTING
D:AUX SET 1
E:AUX SET 2
H:AUTO SET
Select C: SETTING and press the
key.
HOME SET ADJ ESC
YOKOGAWA
C20:PRESS UNIT
kPa
C21:LOW RANGE
0 kPa
DATA DIAG PRNT
SET
C10:TAG NO.
ESC
Select C10: TAG NO. and press the key.
CODE CAPS CLR ESC
Set the new TAG NO. (FIC-1a).
FOKOGAWA
FIKOGAWA
FICOGAWA
FIC-GAWA
FIC-1AWA
FIC-1aWA
FIC-1a
F0812-1.ai
8-9
SET
C10:TAG NO.
PRINTER OFF
F2:PRINTER ON
FEED POFF NO
C10:TAG NO.
FIC-1a
FEED NO OK
C10:TAG NO.
FIC-1a
C20:PRESS UNIT
kPa
C21:LOW RANGE
DATA DIAG PRNT ESC
This is the panel for confirming set data. The set data items flash.
When all items have been confirmed, press the again. (To go back to the setting panel, press the (NO) key.
The DPharp TAG NO. was overwritten.
Press the (OK) key to return to the parameter panel.
Press the (NO) key to return to the setting panel.
F0812-2.ai
(2) Calibration Range Setup a. Setting Calibration Range Unit
(C20: PRESS UNIT)
The unit is set at the factory before shipment if specified at the time of order. Follow the procedure below to change the unit.
• Example: Change the unit from
mmH
2
O to
kPa.
SET
C20:PRESS UNIT
< mmWG >
< mmHG >
< Torr >
< kPa >
ESC
Use the or key to select “kPa.”
Press the key twice to enter the setting.
C20:PRESS UNIT
kPa
Press the (OK) key.
FEED mmH
2
O mmAq mmWG mmHg
Torr kPa
MPa mbar bar gf/cm 2 kgf/cm 2 inH
2
O inHg ftH
2
O psi atm
NO OK
F0813.ai
IM 01C21D01-01E
b. Setting Calibration Range Lower Range
Value and Higher Range Value
(C21: LOW RANGE, C22: HIGH RANGE)
These range values are set as specified in the order before the instrument is shipped. Follow the procedure below to change the range.
• The measurement span is determined by the high and low range limit values. In this instrument, changing the low range value also automatically changes the high range value, keeping the span constant.
• Example 1: With present settings of 0 to
30 kPa, set the lower range value to 0.5 kPa.
C21:LOW RANGE
+ 0.5
Set 0.5.
Press the key twice to enter the setting.
DEL CLR
C21:LOW RANGE
0.5 kPa
ESC
Press the (OK) key.
FEED NO OK
SET
C20:PRESS UNIT
kPa
C21:LOW RANGE
C22:HIGH RANGE
30.5 kPa
DATA DIAG PRNT ESC
The higher range value is changed while the span remains constant.
(Span = Higher range value – Lower range value )
F0814.ai
• Note, however, that changing the higher range value does not cause the lower range value to change. Thus, changing the higher range value also changes the span.
• Calibration range can be specified with range value specifications up to 5 digits (excluding any decimal point) for low or high range limits within the range of −32000 to 32000.
<8. BRAIN TERMINAL BT200 Operation>
DEL CLR
SET
10 kPa
ESC
Press the (OK) key.
8-10
• Example 2: With present settings of 0 to
30 kPa, set the Higher range value to10 kPa.
SET
C22:HIGH RANGE
30 kPa
+ 10
Set 10.
Press the key twice to enter the setting.
FEED NO OK
C20:PRESS UNIT
kPa
0 kPa
C22:HIGH RANGE
10 kPa
DATA DIAG PRNT ESC
The low range value is not changed, so the span changes.
F0815.ai
(3) Damping Time Constant Setup
(C30: AMP DAMPING)
When the instrument is shipped, the damping time constant is set at 2.0 seconds. Follow the procedure below to change the time constant.
• Example: Change from 2.0 sec to 4.0 sec.
2.0 sec
< 2.0 sec >
< 4.0 sec >
< 8.0 sec >
< 16.0 sec >
ESC
Use the or key to select 4.0 sec.
Press the key twice to enter the setting.
Press the (OK) key.
FEED
0.2sec
0.5sec
1.0sec
2.0sec
4.0sec
8.0sec
16.0sec
32.0sec
64.0sec
NO OK
F0816.ai
Note: The damping time constant set here is the damping time constant for the amplifier assembly. The damping time constant for the entire transmitter is the sum of the values for the amplifier assembly and for the capsule assembly.
For the capsule assembly damping time constant (fixed), see the “General Specifications” found at the end of this manual. (See Chapter 10.)
IM 01C21D01-01E
(4) Output Signal Low Cut Mode Setup
(D10: LOW CUT, D11: LOW CUT MODE)
Low cut mode can be used to stabilize the output signal near the zero point. The low cut point can be set in a range from 0 to 20% of output. (Hysteresis of cut point: ±1%)
Select “ ZERO” as the low cut mode.
LOW CUT mode ZERO at 10%
50
<8. BRAIN TERMINAL BT200 Operation>
8-11
(5) Change Output Limits
(D15: OUT LIMIT(L), D16: OUT LIMIT(H))
The range of normal output is preset at factory from
-5.0 to 110.0% unless otherwise specified, and the output is limited with these upper and lower values.
This output range can be changed, for example, to meet the requirements of NAMUR, etc. within the settable range. Set the lower limit with
D15:OUT
LIMIT(L) and upper limit with D16:OUT LIMIT(H).
Settable range: −5.0 to 110.0 (%)
Lower limit < Upper limit
Output (%)
10
(6) Integral Indicator Scale Setup
The following 5 displays are available for integral indicators.
0
10
Input(%)
50
● Example: Change the low cut setting range from 5% to 10%, and the low cut mode from
LINEAR to ZERO.
D10:LOW CUT
+ 10.0
Set “10.”
Press the key twice to enter the setting.
CLR ESC
D10:LOW CUT
10.0 %
Press the (OK) key.
Next, the [D11: LOW CUT MODE] setting panel is displayed.
FEED NO OK
D11:LOW CUT MODE
LINEAR
D11:LOW CUT MODE
ZERO
ESC
Use the or key to select “ZERO.”
Press the key twice to enter the setting.
Press the (OK) key.
FEED NO
D10:LOW CUT
10.0 %
D11:LOW CUT MODE
ZERO
D20:DISP SELECT
DATA DIAG PRNT
OK
ESC
F0817.ai
F0818.ai
D20: DISP SELECT and Display
NORMAL %
USER SET
Description and Related parameters
Indicates –5 to 110% range depending on the Measurement range (C21, C22).
A10:OUTPUT (%)
45.6 %
Indicates values depending on the
Engineering range (D22, D23).
(
Note 1
)
Units set using Engineering unit
(D21) are not indicated.
USER & %
INP PRES
PRES & %
A11:ENGR.OUTPUT
20.0 M
Indicates user set and % alternately in 3 second intervals.
A10:OUTPUT (%)
45.6 %
A11:ENGR. OUTPUT
20.0 M
Indicates input pressure.
(
Note 2
)
Indication limits –19999 to 19999.
A40:INPUT
456 kPa
Indicates input pressure and % alternately in 3 second intervals.
A10:OUTPUT (%)
45.6 %
A40:INPUT
456 kPa
F0819.ai
Note 1: Scale range can be specified with range limit specifications up to 5 digits (excluding any decimal point) for low or high range limits within the range of
–19999 to 19999.
The range with decimals is available to the third decimal place.
Note 2: It indicates the value after zeroing.
See (a.) through (c.) for each setting procedure.
IM 01C21D01-01E
% indication and input pressure indication
D20: DISP SELECT
NORMAL %
INP PRES
PRES & %
Transmitter is set for “% display” when shipped.
User-set engineering unit display
D20: DISP SELECT
USER SET
USER & %
Set for user-set engineering unit display.
<8. BRAIN TERMINAL BT200 Operation>
8-12 b. Setting User-set Engineering Unit
(D21: DISP UNIT)
This parameter allows entry of the engineering units to be displayed on the BT200. When the instrument is shipped, this is set as specified in the order.
Follow the procedure below to change this setting.
This parameter need not be set for % display.
D21: DISP UNIT
Set a unit to be displayed on the BT200.
• Example: Set an engineering unit M.
D21:DISP UNIT
M_
Set “M.”
Press the key twice to enter the setting.
CODE CAPS CLR ESC
Press the (OK) key.
D21:DISP UNIT
M
D22: DISP LRV
Set a numeric value for engineering unit for 4 mA output (LRV).
FEED NO OK
F0822.ai
D23: DISP HRV
Set a numeric value for engineering unit for 20 mA output (HRV).
F0820.ai
a. Display Selection (D20: DISP SELECT)
Follow the instructions given to the below to change the range of integral indication scales.
When
USER SET is selected, the user set values of integral indication and A11: ENGR. OUTPUT parameter are indicated.
c. Lower and Higher Range Value Setup in
Engineering Unit
(D22: DISP LRV, D23: DISP HRV)
These parameter items are used to set the lower and higher range values for the engineering unit display.
When the instrument is shipped, these are set as specified in the order. Follow the procedure below to change these settings. Note that these parameters need not be set for % display.
• Example: Set the integral indicator scale to
engineering units display.
SET
D20:DISP SELECT
NORMAL %
<NORMAL %>
<USER & %>
<INP PRES>
SET
USER SET
ESC
Use the or key to select “USER SET.”
Press the key twice to enter the setting.
Press the (OK) key.
FEED NO OK
The “%” disappears from the integral indicator display.
F0821.ai
IM 01C21D01-01E
• Example: Set lower range value (LRV) to –50 and higher range value (HRV) to 50.
Setting LRV
D22:DISP LRV
- 50
Set “–50.”
Press the key twice to enter the setting.
DEL CLR ESC
<8. BRAIN TERMINAL BT200 Operation>
8-13
(8) Operation Mode Setup
(D40: REV OUTPUT)
This parameter allows the direction of the 4 to 20 mA output to be reversed with respect to input.
Follow the procedure below to make this change.
Setting HRV
100M
+ 50
DEL CLR ESC
Set “50.”
Press the key twice to enter the setting.
• Example: Change 4 to 20 mA output to 20 to
4 mA output.
D40:REV OUTPUT
NORMAL
ESC
Use the or key to select REVERSE.
Press the key twice to enter the setting.
F0825.ai
Press the (OK) key.
FEED NO
D21:DISP UNT
M
D22:DISP LRV
- 50M
D23:DISP HRV
DATA DIAG PRNT
OK
ESC
F0823.ai
(7) Unit Setup for Displayed Temperature
(D30: TEMP UNIT)
When the instrument is shipped, the temperature units are set to degC. Follow the procedure below to change this setting. Note that changing the unit here changes the unit for A20: AMP TEMP
(amplifier temperature) and A21: CAPSULE TEMP
(capsule temperature).
(9) Output Status Display/Setup when a CPU
Failure
(D52: BURN OUT)
This parameter displays the status of 4 to 20 mA
DC output if a CPU failure occurs. In case of a failure, communication is disabled.
Setting of HIGH or LOW is enabled. This is done with the pin (CN4) on the CPU assembly. See
Chapter 3 for details.
Standard specifications
The parameter is set to HIGH. If a failure, the transmitter outputs the signal of 110% or higher.
The parameter D53: ERROR OUT is set to HIGH from the factory.
Optional code/C1
The parameter is set to LOW. If a failure, output which is −5% or lower is generated. The parameter
D53: ERROR OUT is set to LOW from the factory.
• Example: Change the unit for the temperature
display.
SET
D30:TEMP UNIT
< deg C >
< deg F >
ESC
Use the or key to select “deg F.”
Press the key twice to enter the setting.
F0824.ai
• Example: Standard specifications pin (CN4) position: H
• Example: Optional code/C1
D52: BURN OUT
LOW pin (CN4) position: L
F0826.ai
IM 01C21D01-01E
(10) Output Status Setup when a Hardware
Error Occurs
(D53: ERROR OUT)
This parameter allows the setting of the output status when a hardware error occurs. The following three selections are available.
(a) HOLD; Outputs the last value held before the error occurred.
(b) HIGH; Outputs an output of 110% when an error has occurred.
(c) LOW; Outputs an output of −5% when an error has occurred.
Note: A hardware error means CAP MODULE FAULT of Er.01 or AMP MODULE FAULT of Er. 02 which are shown in
8.5.2 “Errors and Countermeasures.”)
• Example: Set the output status to LOW when
a hardware error occurs.
SET
D53:ERROR OUT
HIGH
< HIGH>
ESC
Use the or key to select “LOW.”
Press the key twice to enter the setting.
F0827.ai
<8. BRAIN TERMINAL BT200 Operation>
8-14
• Example 1: When changing the lower range
value to 0.5 kPa for the present
H10:AUTO LRV
+ 0
H10:AUTO LRV
0.5000 kPa setting of 0 to 30 kPa, take the following action with input pressure of 0.5 kPa applied.
ESC
Press the key twice.
The lower range value is changed to 0.5 kPa.
Press the (OK) key.
FEED NO OK
PARAM
H10:AUTO LRV
0.5000 kPa
H11:AUTO HRV
H60:SELF CHEC
GOOD
DATA DIAG PRNT ESC
The higher range value is changed keeping the span constant.
Parameters C21 and C22 are changed at the same time.
F0828.ai
Note that changing the higher range value does not cause the lower range value to change but does change the span.
(11) Range Change while Applying Actual
Inputs
(H10: AUTO LRV, H11: AUTO HRV)
This feature allows the lower and higher range values to be set up automatically with the actual input applied. If the lower and higher range values are set, C21: LOW RANGE and C22: HIGH
RANGE are changed at this same time.
Follow the procedure in the figure below.
The measurement span is determined by the higher and lower range values. Changing the lower range value results in the higher range value changing auto-matically, keeping the span constant.
• Example 2: When the higher range value is to
be changed to 10 kPa with the present setting of 0 to 30 kPa, take the following action with an input pressure of 10 kPa applied.
SET
H11:AUTO HRV
30 kPa
+ 30
Press the key twice.
The higher range value is changed to 10 kPa.
ESC
SET
10.000 kPa
Press the (OK) key.
FEED NO
PARAM
H10:AUTO LRV
H11:AUTO HRV
10.000 kPa
H60:SELF CHECK
GOOD
DATA DIAG PRNT
OK
ESC
The lower range value is not changed, so the span changes.
Parameter C22 is changed at the same time.
F0829.ai
IM 01C21D01-01E
(12) Zero Point Adjustment
(J10: ZERO ADJ, J11: ZERO DEV, J20: EXT
ZERO ADJ)
The DPharp supports several adjustment methods.
Select the method best suited for the conditions of your application.
Note that output signal can be checked by displaying parameter A10:OUTPUT (%) on the
BT200.
Adjustment
Method
Using the
BT200
Using the external zeroadjustment screw
P.8-15
Description
Set the present input to 0%.
Adjust for 0% output at input level of
0%.
Adjust output to the reference value obtained using other means.
If the input level cannot easily be made 0% (because of tank level, etc.), adjust output to the reference value obtained using other means, such as a sight glass.
Adjust zero point using the zeroadjustment screw on the transmitter.
This permits zero adjustment without using the BT200. Accurately adjust the output current to 4 mA DC or other target output value using an ammeter that accuratly reads output currents.
<8. BRAIN TERMINAL BT200 Operation>
8-15
(b) In tank level measurement, if the actual level cannot be brought to zero for zero adjustment, then the output can be adjusted to correspond to the actual level obtained using another measuring instrument such as a glass gauge.
[Example]
Measurement range: 50 to 250 kPa, Actual value:
130 kPa.
Actual value(%)
=
Actual value
–Measurement range lower range value
Measurement range higher range value
–Measurement range lower range value x 100
=
130–50
250–50 x 100=40.0%
(b)-1 Follow the procedure below to use
J10:
ZERO ADJ.
J10:ZERO ADJ
+ 040.0
CLR ESC
Present output is 41.0%.
Enter the present actual level,
40%.
Press the key twice.
The output is changed to 40%.
(a) Follow the procedure below when setting the present output to 0% (4 mA).
A10:OUTPUT (%)
0.5 %
0.0 %
+ 000.0
CLR ESC
Output is 0.5%.
Press the key twice.
Zero adjustment is completed.
Press the (OK) key.
(b)-2 Follow the procedure below to use
J11:
ZERO DEV.
F0831.ai
Present output is 41.0%.
Output error = 40.0–41.0= –1.0%.
SET
J11:ZERO DEV.
ESC
Since “J11: ZERO DEV.” contains the previous correction, obtain the correction value by adding –1.0% to it. 2.50% + (–1.0%) = 1.50%
FEED NO OK
SET
J11:ZERO DEV.
2.50 %
1.50
Set the correction value, 1.50.
Press the key twice.
A10:OUTPUT (%)
0.0 %
Output is 0%.
ECS
F0830.ai
A10:OUTPUT (%)
40.0 %
The output is changed to 40%.
When the zero point is adjusted, the displayed value of A40 is as follows.
F0832.ai
IM 01C21D01-01E
[Example]
When the zero point is shifted by 20 kPa for the actual pressure, the parameter of A40 indicates 50 kPa.
70 kPa
50 kPa
20 kPa
0 kPa
Zero adjustment volume(J11)
Zero adjustment
Actual differential pressure/pressure
Input value of A40
0 kPa
F0833.ai
(c) Zero Point Adjustment Using the External Zero
Adjustment Screw
• Enabling/inhibiting of zero point adjustment using the external zero-adjustment screw on the transmitter (J20: EXT ZERO ADJ)
Follow the procedure below to enable or inhibit zero point adjustment from the zero-adjustment screw on the transmitter.
This is set to “ENABLE” when the instrument is shipped.
• Example: Inhibiting zero adjustment by the
external zero-adjustment screw
J20:EXIT ZERO ADJ
ENABLE
< ENABLE >
< INHIBIT>
ESC
Use the or key to select “INHIBIT.”
Press the key twice to enter the setting.
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• Zero point adjustment using external zeroadjustment screw on the transmitter
Turn the zero-adjustment screw on the outside of the transmitter case using a slotted screwdriver.
Turn the screw to the right to increase the zero point or to the left to decrease the zero output; the zero adjusts in increments of 0.01% of the range setting.
Note that the amount of adjustment to the zero point changes according to the speed at which the screw is turned. To make fine adjustments, turn the screw slowly; to make coarse adjustments, turn the screw quickly.
Note: When a zero point adjustment has been made, do not turn off the transmitter less than 30 seconds after adjustment.
<8. BRAIN TERMINAL BT200 Operation>
8-16
(13) Span Adjustment
Each DPharp EJA series transmitter is factory characterized according to the specification.
Mounting position effects or zero shifts caused by static pressure are typically compensated by a zero adjustment.
A span adjustment is a function to correct the slope error from a zero point in characterizing 100% point
(HRV). This function can be used when span drifts may be caused or characterization to the specific pressure standard is required.
Therefore, the zero point adjustment should always be performed before the upper point adjustment in order to maintain the pitch between zero and 100% points within the calibration range.
You can manually perform the trimming procedure by using J15: SPAN ADJ.
• Span adjustment value
The span adjustment value is calculated as follows.
Span adjustment value (%) =
P
1
– A40
P
1
×
100
P
1
: Actual differential pressure/pressure value
A40: Input (indicated as the value after zeroing)
Measurement pressure
A40
0
P
1
Applied pressure
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IM 01C21D01-01E
• Example: For the range of 0 to 30 kPa.
A40: INPUT = 30.15 kPa
J15: SPAN ADJ = 0.15 %
Suppose that a standard pressure of 30 kPa is applied and the value of the parameter of A40:INPUT is 30.15 kPa.
Firstly, obtain the slope error for the span as follows;
Span adjustment value (%) =
=
P
1
– A40
P
1
×100
30.00 – 30.15
30.00
×100 = −0.5 (%)
Add −0.5% to 0.15% of the current value to calculate the accumulated span adjustment value.
0.15 + (−0.50) = –0.35
<8. BRAIN TERMINAL BT200 Operation>
8-17
(14) Test Output Setup
(K10: OUTPUT X%)
This feature can be used to output a fixed current from 3.2 mA (−5%) to 21.6 mA (110%) for loop checks.
• Example: Output 12 mA (50%) fixed current.
0.0 %
+ 050.0
Set “50.0%.”
Press the key twice to output a fixed current at 50%.
ESC
SET
50.0 % ACTIVE
FEED NO OK
“Active” is displayed while this is being executed.
Press the (OK) key to cancel the fixed current output.
J15:SPAN ADJ
- 0.35
Set −0.35.
Press key twice.
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DEL
J15:SPAN ADJ
-0.35 %
FEED
CLR
NO
ESC
OK
Press the (OK) key.
Note: Enter 0.00 to J15: SPAN ADJ to reset the span adjustment to the initial value at the shipment.
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IMPORTANT
1. Test output is held for approximately 10 minutes, and then released automatically after the time has elapsed. Even if the
BT200 power supply is turned off or the communication cable is disconnected during test output, it is held for approximately 10 minutes.
2. Press the [F4] (OK) key to release test output immediately.
(15) User Memo Fields
(M: MEMO)
This feature provides 5 user memo fields, each holding up to 8 alphanumeric characters. Up to 5 items such as inspection date, inspector, and other information can be saved in these fields.
• Example: Save an inspection date of January
30, 1995.
M20:MEMO 2
M30:MEMO 3
DATA DIAG PRNT
SET
M10:MEMO 1
95.1.30_
ESC
Set “95.1.30” in the order of year, month, and day.
Press the key twice to enter the setting.
ESC
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8.4 Displaying Data Using the
BT200
8.4.1 Displaying Measured Data
The BT200 can be used to display measured data.
The measured data is updated automatically every
7 seconds. In addition, the display can be updated to the present data value at any time by pressing the [F1] (DATA) key. For parameters associated with the display of measured data, see Subsection
8.3.1, “Parameter Summary.”
<8. BRAIN TERMINAL BT200 Operation>
8.5 Self-Diagnostics
8.5.1 Checking for Problems
8-18
(1) Identifying Problems with BT200
The following four areas can be checked.
(a) Whether connections are good.
(b) Whether BT200 was properly operated.
(c) Whether settings were properly entered.
(d) History of the errors.
See examples below.
• Example: Display output.
A:DISPLAY
B:SENSOR TYPE
HOME SET ADJ ESC
A10:OUTPUT (%)
XX.X %
A11:ENGR.OUTPUT
YY.Y %
A20:AMP TEMP
DATA DIAG PRNT ESC
PARAM
A10:OUTPUT (%)
A11:ENGR.OUTPUT
A20:AMP TEMP communi
Display “A10: OUTPUT (%).”
Data is updated automatically at 7-second intervals.
• Example 1: Connection errors
BRAIN TERMINAL
ID: BT200 check connection push ENTER key
UTIL FEED
Press the key.
When the panel shown on the left appears, press the key.
communication error
ESC
Since communications will be unsuccessful if there is a problem in the connection to the BT200, the display at the left will appear.
Recheck the connection.
Press the (OK) key.
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8.4.2 Display Transmitter Model and
Specifications
The BT200 can be used to display the model and specifications of the transmitter.
• Example: View transmitter model name.
Press .
A:DISPLAY
B:SENSOR TYPE
HOME SET ADJ ESC
• Example 2: Setting entry errors
01:MODEL
EJA430A-DA
YOKOGAWA
ERROR
The initial data panel shows the result of current transmitter diagnostics.
OK
C20:PRESS UNIT
kPa
600 kPa
C22:HIGH RANGE
600 kPa
DATA DIAG PRNT
C60:SELF CHECK
ERROR
< ERROR >
< ILLEGAL LRV >
ESC
Press the (DIAG) key in the parameter panel to go to the diagnostics panel
(C60: SELF CHECK).
An error message is displayed when an error occurs in the diagnostics panel.
FEED PRNT ESC
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PARAM
B10:MODEL
EJA430A-DA
B11:STYLE NO.
S1.01
B20:LRL
- 98.07 kPa
DATA DIAG PRNT ESC
For the associated parameters, see
Subsection 8.3.1,
Parameter Summary.
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IM 01C21D01-01E
• Example 3: Checking the history of the errors
MENU
J:ADJUST
M:MEMO
P:RECORD
Connect the BT200 to the transmitter, and call item “P.”
HOME SET ADJ ESC
PARAM
P10:ERROR REC 1
P11:ERROR REC 2
P12:ERROR REC 3
DATA DIAG PRNT ESC
P10: “ERROR REC 1” displays the last error.
P11: “ERROR REC 2” displays the error one time before the last error occurred.
P12: “ERROR REC 3” displays the error two times before the last error occurred.
P13: “ERROR REC 4” displays the error three times before the last error occurred.
The history of up to four errors can be stored. When the
5th error has occurred, it is stored in “P10”. The error stored in “P13” will be deleted, and then, the error in “P12” will be copied to “P13”. In this sequence, the history of the most previously occurred error will be removed from memory.
“GOOD” will be displayed if there was no previous error.
P10:ERROR REC 1
ERROR
< ILLEGAL LRV >
< ILLEGAL HRV >
ESC
<(a) SETUP PANEL>
Select P10: ERROR REC1 and press the key to display the error message.
For the details of the messages listed below, see Table
8.5.1 Error Message Summary.
<8. BRAIN TERMINAL BT200 Operation>
8-19
(2) Checking with Integral Indicator
NOTE
If an error is detected in the self-diagnostic, an error number is displayed on the integral indicator. If there is more than one error, the error number changes at two-second intervals. See
Table 8.2 regarding the error numbers.
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Figure 8.5 Identifying Problems Using the Integral
Indicator
CAP MODULE FAULT
AMP MODULE FAULT
OUT OF RANGE
OUT OF SP RANGE
OVER TEMP (CAP)
OVER TEMP (AMP)
OVER OUTPUT
OVER DISPLAY
ILLEGAL LRV
ILLEGAL HRV
ILLEGAL SPAN
ZERO ADJ OVER
Note 1: Press the key twice in the setting panel
(panel 1) to clear all error message (P10 to P13) information.
Note 2: After two hours from when an error occurs, the error message of that error will be recorded.
Therefore, if you switch off the transmitter within two hours from when the error occurs, there is no history of that error stored in the transmitter, and this function is meaningless.
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IM 01C21D01-01E

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Key features
- High Accuracy
- Wide Operating Range
- Robust Construction
- Easy Installation
- Versatile Configuration
- Explosion Proof Models Available
- Intrinsically Safe Models Available
- Foundation Fieldbus™, PROFIBUS PA and HART Protocol Versions
- Integral Indicator
- Digital Settings via BT200