The Yokogawa EJA118 series manual provides installation, wiring, operation, maintenance, and safety instructions for membrane‑seal differential pressure…
This manual covers the complete lifecycle of the EJA118W, EJA118N and EJA118Y membrane‑seal differential pressure transmitters. It includes detailed installation steps, wiring guidelines, operation procedures, zero‑adjustment, and maintenance tasks, along with extensive safety warnings and explosion‑proof certification information.
The document also lists the applicable explosion‑proof approvals (NEPSI, FM, CSA), environmental limits, and technical specifications such as temperature range, power supply voltage, and output signal. All installation and service work must be performed by qualified engineers or technicians.
Installation must be performed by a qualified engineer or technician.
Verify that the power is off, confirm the voltage, and apply a non‑curing sealant to the thread for waterproofing.