Table of Contents
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User's
Manual
EJX and EJA-E Series
Differential Pressure and
Pressure Transmitters
Installation Manual
Contents
1.
1.1
1.2
2.
3.
3.1
3.2
4.
5.
5.1
5.3
5.5
6.
6.1
7.
For Safe Use of Product ..............................................3
Warranty ......................................................................5
.................................7
..................................................7
..................................... 31
................................................... 32
................................ 33
Mounting................................................................... 34
......................................34
............................................. 37
.................................... 38
Wiring Precautions ................................................... 44
Wiring ....................................................................... 47
Grounding ................................................................ 51
Preparation for Starting Operation ........................... 52
.............................................. 52
.......................................... 53
..............................7
......7
...................... 31
............ 35
.................. 36
............. 38
................... 39
..................... 42
115
42
...... 44
......... 49
........... 51
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Table of Contents
Related Manuals for YOKOGAWA Dpharp EJX430A
Summarization of Contents
1. Introduction
1.1 For Safe Use of Product
Provides guidelines for the safe use of the instrument and system.
1.2 Warranty
Details the warranty coverage period and conditions for repairs.
2. Handling Cautions
2.1 Model and Specifications Check
Verifies the model name and specifications on the name plate.
2.2 Selecting the Installation Location
Provides precautions for choosing an appropriate installation site.
2.3 Pressure Connection
Details precautions for connecting the pressure impulse lines.
2.4 Installation of Explosion-Protected Instruments
Explains installation procedures for explosion-protected instruments.
3. Installation
3.1 Mounting
Describes how to mount the transmitter using the supplied bracket.
3.2 Diaphragm Seal Mounting
Provides instructions and considerations for mounting diaphragm seals.
3.3 Flushing Connection Ring Mounting
Details the procedure for mounting the flushing connection ring.
3.4 Teflon Film Application
Explains how to affix the Teflon film for optimal performance.
3.5 Rotating Transmitter Section
Describes how to rotate and secure the transmitter section.
3.6 Integral Indicator Direction Change
Guides on how to change the orientation of the integral indicator.
4. Installing Impulse Piping
4.1 Impulse Piping Installation Precautions
General precautions for installing impulse piping.
4.2 Impulse Piping Connection Examples
Shows typical connection examples for impulse piping.
4.3 Process Piping Installation Precautions
Installation precautions for process piping.
5. Wiring
5.1 Wiring Precautions
General precautions to follow during wiring.
5.2 External Wiring to Terminal Box
Details how to connect external wiring to the terminal box.
5.3 Loop Configuration and Wiring
Explains loop configuration and wiring installation procedures.
5.4 RTD Cable Connection
Connecting RTD cable to the terminal box side.
5.5 Grounding
Procedures and requirements for grounding the transmitter.
5.6 Power Supply Voltage and Load Resistance
Relationship between power supply voltage and load resistance.
6. Operation
6.1 Starting Operation Preparation
Steps to prepare the transmitter for starting operation.
6.2 Zero Point Adjustment
Procedures for adjusting the zero point of the transmitter.
6.3 Local Parameter Setting
How to set parameters locally using buttons and screws.
7. Errors and Countermeasures
Alarm Message Summary (Except EJX910A/EJX930A)
Lists error messages and their causes/countermeasures.
Alarm Message Summary (For EJX910A/EJX930A)
Lists error messages and countermeasures for specific models.
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