YOKOGAWA SC150, Instruction Manual

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IM 12D7B4-E-H
2
1-2. Application
The EXAxt converter is intended to be used for continuous on-line measurement of
conductivity or resistivity in industrial installations. The unit combines simple operation and
microprocessor-based performance with advanced self-diagnostics and enhanced
communications capability to meet the most advanced requirements. The measurement can
be used as part of an automated process control system. It can also be used to indicate
operating limits of a process, to monitor product quality, or to function as a controller for a
dosing/neutralisation system.
Yokogawa designed the EXAxt analyser to withstand industrial environments.
The contoller may only be installed in a panel mounted configuration.
The front panel forms an IP65 water tight seal against the flat face of the panel. Integral
mounting clamps can be operated from the front of the panel.
Sensors should normally be mounted close to the converter in order to ensure easy
calibration and peak performance. If the unit must be mounted remotely from the sensors,
WF10 extension cable can be used, up to a maximum of 50 meters (150 feet), with a BA10
junction box, and up 10 meters standard sensor cable.
The EXAxt is delivered with a general purpose default setting for programmable items (see
Chapter 5). While this initial configuration allows easy start-up, the configuration should be
adjusted to suit each particular application. An example of an adjustable item is the type of
temperature sensor used. The EXAxt can be adjusted for a number of different types of
temperature sensors.
Details provided in this instruction manual are sufficient to operate the EXAxt with all
Yokogawa sensor systems and a wide range of third-party commercially available probes.
For best results, read this manual in conjunction with the corresponding sensor instruction
manual.
Yokogawa designed and built the EXAxt to meet the CE regulatory standards. The unit
meets or exceeds stringent requirements (see section 2) without compromise, to assure the
user of continued accurate performance in even the most demanding industrial installations.