WPH410/420 | pH/ORP Controllers0 pages

An Iwaki America Company
WPH410/420 | pH/ORP Controllers
OVERVIEW
The WPH410/420 Series pH/ORP on-line process controllers are designed
for a broad range of industrial, commercial, and municipal water treatment
applications. WPH controllers are easily configured to accurately measure pH
or mV (ORP) values from Walchem’s WEL and WDS differential combination
electrodes, or any conventional combination electrode.
A versatile output configuration allows you to program up to four outputs in
a variety of control modes. Select from on/off mechanical relays or pulse
proportional control for direct connection to metering pumps. The easy-to-use
menu format and pre-wired, pre-mounted panel system options make set-up
and installation quick and simple.
Integrated datalogging is available to validate system performance. A USB
memory stick is all that’s needed to extract data and event logs that include
electrode measurements, temperature and relay status. Download log files
from the USB stick to a PC at your convenience. It couldn’t be easier!
SUMMARY OF KEY BENEFITS
Applications
Wastewater
Plating
Cooling Tower
Versatility for a Broad Range of Applications
Select from pH or ORP measurements and from five output options. Use In-Range to control
a solenoid valve to dump a batch treatment tank when measurement value is within limits, or
program for Out-of-Range Alarm in waste treatment applications when the measurement value
is too high or low.
Ideal for Harsh Environments
The NEMA 4X enclosure, combined with Walchem’s WEL and WDS electrodes, provides a
waterproof system with no BNC connectors exposed to wet or corrosive environments.
Built-in Safety Features
Programmable output limit timers prevent run-away chemical addition. Digital Interlock Input may be
used from a flow switch or level input to prevent chemical addition based on a stagnant sample, or
control of an empty batch tank.
TA
DA
Simple, Integrated Data Collection
Download stored data from the controller to a USB stick with the press of a
button. Use the data to simply and easily validate system performance, document
compliance, and reduce liability. The data and event logs show pH/ORP and
temperature values, as well as accumulated chemical feed and relay activation
times.