Yokogawa EJX115A - Manual

User’s
Manual
Contents
1. Introduction
1.1 For Safe Use of Product ..............................................2
1.2 Warranty ......................................................................3
1.3 ATEX Documentation ..................................................4
2. Handling Cautions
2.1 Model and Specifications Check .................................6
2.2 Selecting the Installation Location ..............................6
2.3 Pressure Connection ..................................................6
2.4 Installation of an Explosion-Protected Instrument ......6
2.5 EMC Conformity Standards ..................................... 15
2.6 Pressure Equipment Directive (PED) ...................... 16
2.7 Low Voltage Directive ............................................... 17
3. Installation
3.1 Mounting................................................................... 18
3.2 Mounting the Diaphragm Seals ......................................18
3.3 Diaphragm Seals Installation Consideration ............ 19
3.4 Mounting the Flushing Connection Ring .................. 20
3.5 Affixing the Teflon Film ............................................. 21
3.6 Rotating Transmitter Section .................................... 22
3.7 Changing the Direction of Integral Indicator............. 22
4. Installing Impulse Piping
4.1 Impulse Piping Installation Precautions ................... 23
4.2 Impulse Piping Connection Examples ..................... 25
4.3 Process Piping Installation Precautions (EJ115) 26
5. Wiring
5.1 Wiring Precautions ................................................... 28
5.2 Connections of External Wiring to Terminal Box ...... 28
5.3 Wiring ....................................................................... 30
5.4 RTD Cable Connection (EJX910A/EJX930A) ......... 31
5.5 Grounding ................................................................ 34
5.6 Power Supply Voltage and Load Resistance ........... 34
6. Operation
6.1 Preparation for Starting Operation ........................... 35
6.2 Zero Point Adjustment .............................................. 36
7. Errors and Countermeasures
8. Parameter Summary
1
2
3
4
5
6
7
8
EJX and EJA-E Series
Differential Pressure and
Pressure Transmitters
Installation Manual
IM 01C25A01-01E
IM 01C25A01-01E
7th Edition
CD-ROM included