SC4200 Streaming Current Detector0 pages

MILTON ROY

SC42QO

PD 1042 SC

Effective 9/15/93

SC4200 STREAMING CURRENT DETECTOR

DESCRIPTION

The Milton Roy Model SC42CO Streaming Current Detector

<SCD) is an on line electrokinetic charge analyzer that mea*

sures the net ionic and particle surface charge in & chemically

treated water or wastewater sample. The SCDallows con-

tinuous monitoring and control of the coagulation process,

thereby providing:

• Consistent water quality

* Uniform chemical dosing under varying conditions

• Reduced chemical costs

• Reduced manual supervision and/or automate operation

of the treatment process

The SC4200 represents the most advanced level of Streaming

Current Technology available today. The SC42CC5 electron-

ire, sampling system and overall design are the direct result

of years of studies and research and development aimed at

advancing the technology. Though SCO's have been an ac-

cepted part of water treatment for over a decade; the SC420Q

incorporates a number of key improvements hat provide

even greater stability, response, and improved operation

over previous successful design*

In addition, the SC4200 is the first of a new generation of

SCO's designed to operate in wastewater treatment- Spedal

probe design* and electronic advances have opened the door

to controlling coagulant feed to belt presses, centrifuges, and

other dewatering equipment.

SC42C

JET WASH SAMPLE CELL CLEANING

The Automatic Jet Wash t± an optional patented sample cell

cleaning system available on Milton Roy SCO's. The sy&tem

Is designed to maintain cell cleanliness and signal reliability

by automatically flushing the sample cell on a predetermined

cycle. Flushing is accomplished by injecting water at high

velocity through the bottom of the sampling cell, which

scours the cell surfaces and forces contaminants into the

sample stream drain. Cleaning frequency is field adjustable

to suit the application. Signal output Is automatically locked

during the cleaning cycle to ensure control stability.

SC4200 MODEL SELECTION GUIDE

SC4200— [

9

Output Signal

4 = 4-20mA

0

Probe Cleaning Options

0 ■ Standard Manual Jet Wash

J - Automat* Jet Wash*

Operating Vol tag*

D ■ 1 IS VAC, SO/60 *2

E = 230 VAC, SO hz

ProtM Configuration

F ■ Standard Flow Through

W ■ High Row

9 s

Other Options

0 = None

X - Soeoal

Automatic )et Wash is factory set at 30 second* every 2 hours. |et Wash timing i& field adjustable.

Available settings are^30 second** to 7 minute* <30 second intervals) every IS, 30, or 45 minutes or 1,2. or 4 hours.