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YOKOGAWA DpharpEJX vigilantplant EJX910A, Руководство пользователя

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YOKOGAWA DpharpEJX vigilantplant EJX910A Скачать руководство пользователя страница 49

IM 01C25R01-01E

9-5

9.  MAINTENANCE

F0904E.EPS

Press
forward

Output terminal cable

Zero-adjustment
screw pin

Slide 

switch

Boss

Zero-

adjustment

screw

Integral
indicator

Mounting screw

Amplifier Cover

CPU assembly

Bracket
(for zero-adjustment
screw pin)

LCD board assembly

Figure 9.4 Removing and Attaching LCD Board Assembly

and CPU Assembly

9.4.2 Replacing the CPU Board Assembly

This subsection describes the procedure for replacing
the CPU assembly. (See figure 9.4)

Removing the CPU Assembly

1) Remove the cover. If an integral indicator is

mounted, refer to subsection 9.4 and remove the
indicator.

2) Turn the zero-adjustment screw to the position

(where the screw head slot is horizontal) as shown
in figure 9.4.

3) Disconnect the output terminal cable (cable with

brown connector at the end) and RTD input
terminal cable (cable with blue connector at the
end). When doing this, lightly press the side of the
CPU assembly connector and pull the cable connec-
tor to disengage.

4) Use a socket driver (width across flats, 5.5mm) to

loosen the two bosses.

5) Carefully pull the CPU assembly straight forward to

remove it.

6) Disconnect the flat cable (cable with white connec-

tor at the end) that connects the CPU assembly and
the capsule.

NOTE

Be careful not to apply excessive force to the
CPU assembly when removing it.

Mounting the CPU Assembly

1) Connect the flat cable (with white connector)

between the CPU assembly and the capsule.

2) Connect the output terminal cable (with brown

connector) and RTD input terminal cable (with blue
connector).

NOTE

Make certain that the cables do not get pinched
between the case and the edge of the CPU
assembly.

3) Align and engage the zero-adjustment screw pin

with the groove on the bracket on the CPU assem-
bly. Then insert the CPU board assembly straight
onto the post in the amplifier case.

4) Tighten the two bosses. If the transmitter is

equipped with an integral indicator, refer to subsec-
tion 9.4.1 to mount the indicator.

NOTE

Confirm that the zero-adjustment screw pin is
placed properly in the groove on the bracket
prior to tightening the two bosses. If it is not, the
zero-adjustment mechanism will be damaged.

5) Replace the cover.

9.4.3 Cleaning and Replacing the Capsule

Assembly

This subsection describes the procedures for cleaning
and replacing the capsule assembly. (See figure 9.5.)

Содержание DpharpEJX vigilantplant EJX910A

Страница 1: ...User s Manual Y okogawa Electric Corporation EJX910A Multivariable Transmitters IM 01C25R01 01E IM 01C25R01 01E 2nd Edition...

Страница 2: ...ns Check 3 1 3 2 Unpacking 3 1 3 3 Storage 3 1 3 4 Selecting the Installation Location 3 2 3 5 Pressure Connection 3 2 3 6 Waterproofing of Cable Conduit Connections 3 2 3 7 Restrictions on Use of Rad...

Страница 3: ...ecting Shielded Cable with Cable Gland External temperature input code 1 2 3 and 4 7 3 7 6 2 Connecting Shielded Cable for Conduit Use External temperature input code B C and D 7 5 7 6 3 Removing Shie...

Страница 4: ...l Indicator 9 4 9 4 2 Replacing the CPU Board Assembly 9 5 9 4 3 Cleaning and Replacing the Capsule Assembly 9 5 9 4 4 Replacing the Process Connector Gaskets 9 7 9 5 Troubleshooting 9 7 9 5 1 Basic T...

Страница 5: ...this manual are limited to those for the standard type under the specified model number break down and do not cover custom made instruments Please note that changes in the specifications construction...

Страница 6: ...ician who has an expert knowledge of this device Operators are not allowed to carry out installation unless they meet this condition With high process temperatures care must be taken not to burn yours...

Страница 7: ...contact the Yokogawa representative from which this instrument was purchased or the nearest Yokogawa office If a problem arises with this instrument please inform us of the nature of the problem and...

Страница 8: ...Neem indien u aanwijzingen op het gebied van explosiebeveiliging nodig hebt in uw eigen taal contact op met de dichtstbijzijnde vestiging van Yokogawa of met een vertegenwoordiger SF Kaikkien ATEX Ex...

Страница 9: ...surement instruments can calculate and output the flow value using these three measured variables The EJXMVTool mass flow configuration software is used to configure mass flow calculation Simultaneous...

Страница 10: ...Location Flow Configure Bench Connect Power Supply Connect Personal Computer Perform Configuration Tasks see Chapter2 Review Installation Considerations see Chapter5 Mount Transmitter see Chapter5 Pe...

Страница 11: ...alue with a high level of accuracy The flow factors that are automati cally compensated are discharge coefficient diameter of primary device upstream internal pipe diameter gas expansion factor densit...

Страница 12: ...sired flow is obtained 7 Remove the HART modem from the EJX910A 8 Turn off the power supply NOTE 1 Refer to the following instruction manuals for a more detailed explanation When setting with the HART...

Страница 13: ...d Table 2 4 Normal Standard Volume Flow Unit HART protocol type T0204E EPS Unit LCD Communication normal cubic meter per hour Nm3 h normal liter per hour NL h Standard cubic feet per minute SCFM Tabl...

Страница 14: ...ameters 1 Selection of the flow equation Select the desired operational expression according to the fluid type and the flow unit category shown in Table 2 1 2 Confirming the unit The unit to be used i...

Страница 15: ...unit of use Differential pressure unit of use Pa Example 2 Calculation of Kfactor When Qm unit kg s Differential pressure unit kPa Kfactor 4 Nc C 1 4 d2 2 b 1 K 0 7853982 31 62278 0 6043 1 0 1296 0 9...

Страница 16: ...lected at 1 5 Downloading flow parameter to transmitter Input Kfactor Tb SPb and TempK1 liquid to the transmitter by a communication tool or EJXMVTool IMPORTANT If either the setting of flow unit or d...

Страница 17: ...pecifications are written on the name plate attached to the case F0302E EPS Figure 3 2 Name Plate 3 2 Unpacking Keep the transmitter in its original packaging to prevent it from being damaged during s...

Страница 18: ...g precautions must be observed in order to safely operate the transmitter under pressure a Make sure that all the process connector bolts are tightened firmly b Make sure that there are no leaks in th...

Страница 19: ...or FOUNDATION Filedbus explosion protedted type please refer to IM 01C25R03 01E If a customer makes a repair or modification to an intrinsically safe or explosionproof instrument and the instrument is...

Страница 20: ...tion wiring shall be in conduit as shown in the figure WARNING A SEAL SHALL BE INSTALLED WITHIN 50cm OF THE ENCLOSURE UN SCELLEMENT DOIT TRE INSTALL MOINS DE 50cm DU BO TIER WARNING WHEN INSTALLED IN...

Страница 21: ...sive atmospheres No KEMA 06ATEX0037 X Applicable Standard EN 50014 EN 50020 EN 50284 EN 50281 1 1 Type of Protection and Marking code EEx ia IIC T4 Group II Category 1G 1D Ambient Temperature for gas...

Страница 22: ...a resistor R such that Imaxout Uz R The safety barrier shall be certified by notify body EU as ATEX When using non isolation barrier connect 1 to IS earthing system Note 2 RTD sensor is prepared by t...

Страница 23: ...conduits or use shielded twisted pair cabling when installing EJX series transmitters in a plant 3 11 Pressure Equipment Directive PED 1 General EJX series pressure transmitters are categorized as pr...

Страница 24: ...oor atmosphere Normally only non conductive pollution occurs Occasionally however temporary conductivity caused by condenstaion must be expected 2 Installation Category I Overvoltage category Installa...

Страница 25: ...tion Note 2 Note 1 See subsection 10 2 Model and Suffix Codes for details Note 2 Applicable for HART communication type Set the switches as shown in the figure above to set the burn out direction and...

Страница 26: ...nce between the impulse piping connection ports is usually 54 mm figure 5 1 By changing the orientation of the process connector the dimension can be changed to 51 mm or 57 mm The transmitter can be m...

Страница 27: ...ust be repositioned To reposition a drain vent plug use a wrench to slowly and gently unscrew it Then remove and remount it on the opposite side Wrap sealing tape around the drain vent plug threads 1...

Страница 28: ...in vent plugs to the opposite side as described in subsection 4 3 F0505E EPS Process connector Setscrew Before After rotating 180 Figure 5 5 Before and After Modification 5 4 2 Using the Communicator...

Страница 29: ...on more than the above limit F0507E EPS Vertical impulse piping type Horizontal impulse piping type Pressure detector section Transmitter section Rotate 0 to 180 segments Rotate 0 to 180 segments Tran...

Страница 30: ...ounting bolts uniformly 4 Removing the Impulse Piping Connecting Port Dustproof Cap The impulse piping connecting port on the transmitter is covered with a plastic cap to keep out dust This cap must b...

Страница 31: ...ter and 3 valve manifold be sure to CLOSE the low pressure and high pressure stop valves OPEN the equalizing valve and leave the manifold with the equalizing valve OPEN You must do this in order to a...

Страница 32: ...s no temperature difference between them 5 Condensate Pots for Steam Flow Measure ment If the liquid in the impulse piping repeatedly condenses or vaporizes as a result of changes in the ambient or pr...

Страница 33: ...front The transmitter impulse piping connection is shown for a vertical impulse piping connection configura tion in which the direction of connection is either upwards or downwards If the impulse lin...

Страница 34: ...ded wires in areas that are susceptible to electrical noise c In areas with higher or lower ambient temperatures use appropriate wires or cables d In environment where oils solvents corrosive gases or...

Страница 35: ...4 Check Meter Connection Connect the check meter to the CHECK and _termi nals Use hooks A 4 to 20 mA DC output signal from the CHECK and _ terminals Note Use a check meter whose internal resistance is...

Страница 36: ...proof packing adapter or use a flameproof metal conduit Wiring cable through flameproof packing adapter Apply a non hardening sealant to the terminal box connection port and to the threads on the flam...

Страница 37: ...or the RTD electrical connection F0716E EPS Entry with Seal 1 2NPT Type M20 Type Running Coupler Gasket Entry with Seal Backnut Running Coupler Backnut CAUTION Input output signal is non isolated Do n...

Страница 38: ...e transmitter s terminal box 3 Insert the cable through the conduit and attach it to the RTD electrical connection CAUTION Do not pull the cable or subject it to excessive mechanical shock 7 6 3 Remov...

Страница 39: ...de RTD Terminal T0701E EPS RTD Terminal B A 2 Wire 3 Wire 4 Wire White White White a open b Blue2 Blue2 Blue1 and Blue2 Blue1 Blue1 NOTE The color display in the table shows the white line of the cabl...

Страница 40: ...For the shielded cables in this example of flowmeter installation use two wire separately shielded cables This supply voltage requires a power sourse with a maximum output current of no less than E R...

Страница 41: ...eck that there are no liquid leaks in the impulse piping 3 valve manifold transmitter or other components Venting Gas from the Transmitter Pressure detector Section Since the piping in the example of...

Страница 42: ...ocedure for the zero adjustment screw For the communicator procedure see the communication manual IMPORTANT Do not turn off the power to the transmitter immediately after performing a zero point adjus...

Страница 43: ...tained resistance as the input value then deliver it to the transmitter by means of a variable resistor Measure the resulting output signal with the voltmeter digital multimeter and check the output v...

Страница 44: ...drain vent screw on the transmitter to completely drain vent any stagnated liquid gas However since draining condensate or bleeding off gas disturbs the pressure measurement this should not be done wh...

Страница 45: ...libration Instruments Se lection Table 9 1 lists the instruments that can be used to calibrate a transmitter When selecting an instrument consider the required accuracy level Exercise care when handli...

Страница 46: ...ge close to that of the transmitter T0901E EPS for 0 to 10 kPa for 10 to 0 kPa for 25 to 130 kPa for 0 to 25 kPa for 80 to 0 kPa for 100 to 700 kPa for 0 to 100 kPa for 80 to 0 kPa for 0 to 3000 kPa f...

Страница 47: ...igure 9 1 Instrument Connections for Differential Pressure HART protocol type V R Rc P Using pressure generator Reference pressure High pressure side High pressure side Low pressure side open to atmos...

Страница 48: ...the cover can be opened When a cover is closed it should be locked by a shrouding bolt without fail Tighten the shroud ing bolt to a torque of 0 7 N m Shrouding Bolt Shrouding Bolt F0903E EPS Figure...

Страница 49: ...ll the CPU assembly straight forward to remove it 6 Disconnect the flat cable cable with white connec tor at the end that connects the CPU assembly and the capsule NOTE Be careful not to apply excessi...

Страница 50: ...two setscrews that connect the transmitter section and pressure detector section 3 Remove the hexagon head screw and the stopper 4 Separate the transmitter section and pressure detector section 5 Remo...

Страница 51: ...ersonnel 9 5 1 Basic Troubleshooting First determine whether the process variable is actually abnormal or a problem exists in the measurement system If the problem is in the measurement system isolate...

Страница 52: ...transmitter loop wiring Do the loop numbers match YES NO YES NO NO YES NO NO YES YES YES NO YES Check the sensor connection and correct it Is the sensor correctly connected NO Refer to error message s...

Страница 53: ...ected Check the sensor connection and correct it Connect a communicator and check self diagnostics Contact Yokogawa service personnel F0911E EPS Are valves opened or closed correctly Is impulse piping...

Страница 54: ...to operate and output Continues to operate and output AL 12 CAP TMP CT outside limit Capsule temperature is outside range 50 to 130 C AL 13 AMP TMP AT outside limit Amplifier temperature is outside ra...

Страница 55: ...isted immediately before the error occurred Continues to operate and output AL 55 SP ADJ SP SPAN trim err SP ZERO trim err Check settings and change them as needed Check Simulation Mode Leave from Tem...

Страница 56: ...0 to 850 273 to 1927 L M H Span Range Fixed Temperature K F C Measurement External Temperature Span Range FUNCTIONAL SPECIFICATIONS Output Dual output Both analog and pulse contact output can be obtai...

Страница 57: ...m value In Auto mode mass flow can be measured with high accuracy The flow factors that are automatically compensated are discharge coefficient diameter of primary device upstream internal pipe diamet...

Страница 58: ...gital communication Communication Requirements Safety approvals may affect electrical require ments HART Communication Distance Up to1 5 km 1 mile when using multiple twisted pair cables Communication...

Страница 59: ...Cable gland Nickel plating brass Weight 2 7 kg 6 0 lb without integral indicator mounting bracket process connector and RTD cable Connections Refer to MODEL AND SUFFIX CODE Related Instruments Power D...

Страница 60: ...Electrical connection Bolts and nuts material Installation Integral indicator Mounting bracket Fixed temperature without cable 5 RTD input with 0 5 m 1 64 ft of shielded cable and two cable glands RT...

Страница 61: ...tandards Association CSA 1 Code 4 is not applicable Table 10 5 Wetted Parts Materials Cover flange and process connector ASTM CF 8M 1 Capsule gasket Teflon coated 316L SST Drain Vent plug 316 SST Caps...

Страница 62: ...o 60 C Tp 100 C T120 C Tamb 40 to 60 C Tp 120 C Combined FF1 and FS1 CSA Explosionproof Approval 1 For CSA C22 2 Explosion proof for Class I Groups B C and D Dustignition proof for Class II III Groups...

Страница 63: ...1000 A 1 40 s 100 times Applicable Standards IEC 61000 4 4 IEC 61000 4 5 Amplifier cover and terminal cover Munsell 7 5 R4 14 PR NAMUR NE43 Compliant Output signal limits 3 8 mA to 20 5 mA Failure ala...

Страница 64: ...88 47 1 85 Integral Indicator optional Conduit connection for RTD for flame proof type Shrouding bolt Drain plug Low pressure side Vent plug High pressure side Ground terminal Zero adjustment 117 3 4...

Страница 65: ...optional 95 3 74 221 8 70 79 3 11 Conduit connection For RTD 2 inch pipe O D 60 5 mm Integral indicator optional Shrouding bolt for flame proof type Unit mm approx inch Bottom Process Connection Type...

Страница 66: ...t cable 3 5 3 9 3 Add CENELEC ATEX intrinsically safe type 3 6 3 10 Correct errors 3 11 Revise information for PED 3 12 Section added 7 1 7 1 Add note for fieldbus type in IMPORTANT notice 7 3 7 5 1 A...

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