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.
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