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Side-Stream/By-Pass Flat-Surface, Self-Cleaning pH and ORP Electrodes - S645 Series

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• Range:
0-14pH (0-12pH without Na+ error)
+/- 2000mV for ORP
• Quick disconnect design saves time and money
• Installs in seconds, no tools needed
• Flat surface design resists coating
• CPVC and PVDF construction
• Available with or without ATC elements

Model Number: S645 Series
Data Sheet:

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Product Specification

S645 Series Side-Stream/By-Pass Flat-Surface, Self-Cleaning pH and ORP Electrodes

Item No.: S645CD, S645CD-HT, S645CD-ORP, S645KD, S645KDORP, S645KD-HT

S645 Series Side-Stream/By-Pass pH and ORP Electrodes Features
• Quick disconnect design saves time and money
• Installs in seconds, no tools needed
• Flat surface design resists coating
• CPVC and PVDF construction
• Available with or without ATC elements

S645 Series Side-Stream/By-Pass pH and ORP Electrodes Description
Side stream mountings are particularly useful in applications involving oily coating or moderately viscous materials. This mounting hardware allows the velocity past the electrode to be controlled in a predictable manner. In the 3/4 inch flow cell, restricted 1/4 inch flow channel, each GPM of flow provides two ft/sec past the flat electrode's sensing surface. Flow rates of three to five GPM provide adequate cleaning velocities. Exact control of flow rates is not required.

In viscous material applications the above flow rates may be difficult to achieve; however, lower rates still provide flow in shear to assure that fresh material is at the measuring surface.

S645 Series Side-Stream/By-Pass pH and ORP Electrodes Specifications

Range	0-14pH (0-12pH without Na+ error) +/- 2000mV for ORP
Wetted Materials Body/Junction: CPVC/HDPE ("-CD" models) PVDF/ Porous PVDF ("-KD" models) Measuring Surface: pH glass (pH), Platinum or Gold (ORP)
Temperature/Pressure Range (all models ending in "-CD") = 0C* - 75C (0-100psig), 80C (0-85psig) (all models ending in "-KD") = 0C* - 100C (0-100psig) Note: From 0 to 10C, electrodes will exhibit slower response time.
Reference Type	Ag/AgCl, Sealed Double Junction

S645 Series Side-Stream/By-Pass pH and ORP Electrodes ORDERING INFORMATION

Systems without temperature compensation

ORDER 3 ITEMS	DESCRIPTION	CPVC PARTS	KYNAR (PVDF) PARTS
1. Select one flow cell	Flow cell	FC60C	FC60K

2. Select one electrode	Combination pH electrode	S645CD	S645KD
	pH combination electrode( high temp)	S645CD-HT	S645KD-HT
	ORP combination electrode	S645CD-ORP	S645KD-ORP
	ORP combination electrode (high temp)	S645CD-ORP-HT	INQUIRE

3. Select cable assembly	For conduit use	S653-"cable length"-"connector"	S653K-"cable length"-"connector"

Systems with temperature compensation

ORDER 2 ITEMS	DESCRIPTION	CPVC PARTS	KYNAR (PVDF) PARTS
1. Select one flow cell	Flow cell, cable assembly with ATC	FC60TC-"ATC CODE"-cable length	FC6oTK-”ATC CODE”-cable length
1. Select one flow cell	pH combination electrode( high temp)	connectors	connectors

2. Select one electrode	Combination pH electrode	S645CD	S645KD
2. Select one electrode	pH combination electrode( high temp)	S645CD-HT	S645KD-HT