Siemens Chem-Ad User Manual

Water Technologies

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Diaphragm

Wallace & Tiernan
Chem-Ad® Series A
Diaphragm Metering

The Wallace & Tiernan Chem-Ad Series A is an electronically

controlled, motor driven diaphragm metering pump. It is

designed specifically for very low feedrate applications,

particularly sodium hypochlorite. The pump features a

unique, constant circulation liquid end with a calibrated,

adjustable plunger for precise feedrate control. This design

ensures consistent performance, even with chemicals that

tend to outgas, such as hypochlorite.

The Chem-Ad series of diaphragm metering pumps provided

by Siemens Water Technologies are designed to handle

the most demanding applications in the treatment of

potable water, swimming pools, wastewater and industrial

processes. A well-balanced range of capacities combines

with excellent reproducibility and optimal chemical

resistance. Chem-Ad metering pumps are of the positive

displacement-type driven by proven overload-proof motors.

Since they are available with a wide choice of configurations

ranging from manual to flow proportional to setpoint, these

pumps can cover any metering requirement.

Pump

Technical Information
TI 440.600-1 UA

The XL Series, shown below, features an integrated LED

display panel, touch-pad controls and multiple control

functions, including feedrate setpoint with closed-loop

control, flow/no-flow monitoring, batch operation and

feedrate display.

Key Benefits:

Dependable low capacity metering from 0.06

•

USGPH (0.2 LPH) to 0.44 USGPH (0.5 LPH) and back

pressures to 120 PSI (10 BAR @ 50 Hz)

Reliable metering of most multi-phase fluids,

•

particularly Sodium Hypochlorite, with integral

auto de-gasing

Flexible automatic signal input - analog or pulse

•

Simple user-friendly pump calibration

•

Continuous accurate chemical dosing

•

Suitable for unmanned installations with auto

•

controls and optional flow monitoring

Easy to read back-lit digital display of pump

•

capacity, strokes operating mode and alarm

Low maintenance PVDF head standard

•

Corrosion resistant IP65 enclosure

•

CE marked electronics

•

Description

internal

82 %

I II III

The Chem-Ad Series A model features manual control, or

optional external control, and is designed to handle multi-

phase solutions that tend to out-gas.

Due to its unique design incorporating pre-feeding and

a gasket-free ceramic piston/cylinder unit the pump can

maintain a high reproducibility even when handling very low

feed rates at maximum stroke frequency.

Its smooth pulsation characteristics ensure high metering

accuracy and long life of diaphragms and valves. Due to its

unparalleled low noise level and its enclosure, IP65, the Chem-

Ad Series A is perfectly suitable for laboratories and humid

ambient conditions.

The basic model has an ON/OFF switch, a level switch input,

and alarm output connection. The standard liquid end made

of PVDF ensures a wide range of chemical resistance.

Controls

Manual - E11

Manual control on-line by means of a mechanical stroke

length adjustment via a two-turn knob graduated 0 to 100%.

An on/off switch is also provided. There are connections to

accept level input and alarm output.

Automatic - E30

The E30 Automatic option provides:

Manual on-line stroke frequency

•

regulation - from 0-100%.

External control by 0/4-20mA or

•

pulse input with stop function.

Alarm output/stroke pulse output.

•

Automatic - E60 (XL Model)

The automatic E60 (XL Model) includes:

An integrated LED display panel for easy to read,

•

clear indication of operating status and user friendly

programming.

A four key membrane touch pad simplifies function

•

selection.

Local or remote control via analog (0/4-20mA or 20-

•

4/0mA) or pulse input signals.

Sign a l scal i n g all o w s for

•

multiplying or division of the

pulse input signal.

Flow/no flow verification via an

•

optional flow monitor.

Automatic - E60 Plus (XL Model)

With the addition of an intelligent control package (ICP)

and Oval Gear Meter (OGM), the E60 becomes the full

featured E60 Plus and includes:

Se t po int cont rols wit h au tom a tic fre quen cy

•

compensation for constant chemical feed

Chemical consumption data logging

•

Real time feed rate display

•

Plug and play with calibration data storage on OGM

•

Adjustable flow alarm points

•

Spares and Accessories

Liquid End PM Kits® Parts

For every model of the Chem-Ad Series A, a corresponding

maintenance kit is available. This economically

priced package contains all spare and wear

parts for a prompt and quick maintenance of

the liquid end. The Chem-Ad series is available

with additional useful accessories.

Suction Lance

This option includes pre-wired, built-in low and

empty level switches, foot valve and strainer.

This option is recommended with the Series

A pump.

Oval Gear Meter

Intelligent Control Pack