Myron L Aquaswitch II - Manual (Page 7)

I. INTRODUCTION
Thank you for selecting one of the Myron L Company’s newest
AQUASWITCH Monitor/controllers. The new AQUASWITCH ™
series is based on input from ‘you’ - our customers, time proven
designs, and many years of instrumentation experience.
Since 1957, the Myron L Company has been providing customers
with quality products at an affordable price by designing and
producing products that are Accurate, Reliable, Simple to use.
Quality you have come to rely and depend on.
As you read through this operation manual you will see the new
AQUASWITCH is truly designed to be user friendly with simple
to install options, and easy re-rangeability as conditions or
applications change. This manual is actually more complex than
the
AQUASWITCH , but must be to address all the variables.
A . S C O P E
This operation manual provides the user with the necessary
information to install, operate and maintain the
Myron L Company's latest
AQUASWITCH Resistivity &
Conductivity/TDS Controllers.
Section I. Descriptions, Applications, Specifications.
Section II. Installation; mounting, wiring and set up.
Section III. Options and Accessory installation procedures.
Section IV. Operating procedures.
Section V. Identifies their primary components and provides the
user with easy-to-use calibration and preventive care
procedures.
Section VI. Options & Accessories List.
Section VII. Replacement Components.
Section VIII. Warranty information.
Section IX. Glossary, definitions.
Section X. Notes.
Section XI. Addendum.
1. FUNCTIONAL DESCRIPTIONS
Both models have water & corrosion resistant IP64/NEMA 3
housings suitable for panel, bench or surface mounting.
The AQUASWITCH I is packaged within a compact 6.0" x 4.8"
(152mm x 122mm) housing. The AQUASWITCH II is packaged
within a 6.0" x 10.8" (152mm x 274mm) housing.
The
AQUASWITCH I does not monitor water quality itself, but
should be used with any reliable resistivity or conductivity/TDS
controller such as the Myron L Company’s 750 Series
II
Resistivity or Conductivity/TDS Monitor/controllers.
The
AQUASWITCH II is an integrated unit requiring no other
Monitor/controller.
AQUASWITCH I:
Provides automatic switching from exhausted to fresh Dl banks;
push-button override for immediate bank change-over; adjustable
purge timer for “FAILSAFE” operation; front panel LED displays
provide continual status of both Dl banks; and an alarm is
automatically activated as each bank is depleted.
AQUASWITCH II:
AQUASWITCH II
combines the operating features of the
AQUASWITCH I with the additional features of a
Monitor/controller. These include: a 3 1/2 digit Liquid Crystal
Display and a front panel accessible “SET POINT CHECK” switch.
(Set point setting is internal to discourage unauthorized
adjustments).
NOTE: All specifications for the AQUASWITCH I also apply to
AQUASWITCH II unless otherwise indicated. Bright green/red
LEDs indicate HIGH/LOW set point readings. All AQUASWITCH
II ’s feature a heavy-duty 10 amp output relay, operating on either
increasing or decreasing readings. May use the optional 4-20mA
output for PLC or SCADA operations.
2 . A P P L I C A T I O N S
Conductivity/TDS
Reverse Osmosis
Process Control
Seawater Desalinization
Food Processing
Plating
Power Plants
Laboratories
Printing
Are just a few of the applications
Resistivity
Deionization (DI) and Distillation Ultrapure Water
Treatment Systems
Electronics
Pharmaceutical
Laboratories
Food Processing
Plating
Power Plants
Are just a few of the applications
B . S P E C I F I C A T I O N S
1. GENERAL ASI & ASII
INPUT POWER:
1 1 5 / 2 3 0 V A C ±15%, 50/60 Hz (User selectable)
overvoltage category II
100 mA Maximum Current
Double Insulated (with circuit board ground for OEM operation)
Fuse - 100mA Slow Blow (T.10A) for both 115 & 230 VAC (V
~
)
User replaceable
Humidity - 20-90% non-condensing
Max. Altitude -
40,000 ft/12,000 meters non-operating
10,000 ft/3000 meters operating
Pollution degree 2
24 VAC or 24 VDC Option available on Special Order
Overvoltage category II (24 VAC)
250 mA Maximum Current
Double Insulated (with circuit board ground for OEM operation)
Fuse - 250mA Slow Blow (T.25A) User replaceable
AMBIENT TEMPERATURE RANGE
32°F ( 0°C) to 131°F (55°C)
OUTPUT POWER:
24 VAC (Standard if ordered with Myron L valves)
115 VAC (Standard if ordered without Myron L valves)
230 VAC (Optional)
MAXIMUM LOAD PER VALVE OUTPUT:
200 milliamps;
(5 watts for a 24 V valve)
(25 watts for a 115 V valve)
(50 watts for a 230 V valve)
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