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Ground-Loop Interrupt Flat-Surface Self-Cleaning pH and ORP Electrodes - DA650 Series

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• Rang:
0-14pH (0-12pH without Na+ error)
+/- 2000mV for ORP
• Quick disconnect design saves time and money
• Installs in seconds! No tools necessary!
• Flat surface design resists coating
• Sends pH signal over 1000 feet
• Mounting hardware available with or without ATC elements
• New compact size

Model Number: DA650 Series
Data Sheet:

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Product Specification

DA650 Series Ground-Loop Interrupt Flat-Surface Self-Cleaning pH and ORP Electrodes

Item No.: DA650CD, DA650CD-ORP, DA650CD-HT, DA660CD, DA660CD-ORP, DA661CD,
DA661CD-ORP, DA662CD, DA662CD-ORP, DA650CD-ORP-HT

DA650 Series Ground-Loop Interrupt pH and ORP Electrodes Features
• Quick disconnect design saves time and money
• Installs in seconds! No tools necessary!
• Flat surface design resists coating
• Sends pH signal over 1000 feet
• Mounting hardware available with or without ATC elements
• New compact size

DA650 Series Ground-Loop Interrupt pH and ORP Electrodes Description
The DA series of pH and ORP electrodes are designed to solve operational problems in the presence of stray electrical voltage in solution and electrical ground loops. Installations with plastic tanks and piping are especially susceptible to ground loop problems because of the non-conductive nature of the plastic (cannot serve as earth ground). Dirty motors from pumps or mixers and even conductivity electrodes mounted near pH and ORP electrodes can leak voltage into the solution in which pH and ORP are being measured. This voltage damages the reference part of electrodes, giving erroneous readings in the application and calibration errors, leading to short service life. The DA series electrodes combat ground loop problems by utilizing a solution ground rod that is fed into an internal battery-powered (two year battery life) differential amplifier. An additional benefit of the amplifier is that it allows long cable runs of over 1000 feet.

DA650 Series Ground-Loop Interrupt pH and ORP Electrodes Specifications

Range	0-14pH (0-12pH without Na+ error) +/- 2000mV for ORP
Wetted Materials	CPVC, porous HDPE, pH Glass, Platinum or gold
Min. Temperature	0 deg C / 32 deg F
Max Temperature/Pressure	70C(158F)/ 100 psig
Reference Type	Double Junction, Ag/AgCl

DA650 Series Ground-Loop Interrupt pH and ORP Electrodes ORDERING INFORMATION

SUBMERSION SYSTEMS
Systems without temperature compensation

ORDER 2 ITEMS	DESCRIPTION	CPVC PARTS
1. Select one electrode (pH or ORP)	pH combination electrode	DA650CD
	pH combination electrode (high temp)	DA650CD-HT
	ORP combination electrode	DA650CD-ORP
	ORP combination electrode (high temp)	DA650CD-ORP-HT

2. Select one cable assembly	For conduit use	S653- "cable length" - "Connector"

Systems with temperature compensation

ORDER 2 ITEMS	DESCRIPTION	CPVC PARTS
1. Select one electrode (pH or ORP)	pH combination electrode	DA650CD
1. Select one electrode (pH or ORP)	pH combination electrode (high temp)	DA650CD-HT

2. Select one cable assembly	For conduit use	S653TC - "TC TYPE" - "cable length" - "Connectors"

IN-LINE SYSTEMS
Systems without temperature compensation

ORDER 3 ITEMS	DESCRIPTION	CPVC PARTS
1. Select one flow cell and gland or gland only	Flow cell and gland	FC66C(3/4"), FC67C(1"), FC68C(2")
1. Select one flow cell and gland or gland only	Gland only (1" and 2" include reducing bushing)	FC66P(3/4"), FC67P(1"), FC68P(2")

2. Select one electrode	Combination pH electrode	DA660CD (3/4"), DX661CD(1"), DA662CD(2")
2. Select one electrode	ORP combination electrode	DA660CD-ORP(3/4"), DA661CD-ORP(1") DA662CD-ORP(2")

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

Systems with temperature compensation

ORDER 2 ITEMS	DESCRIPTION	CPVC PARTS
1. Select one flow cell, gland and cable	Flow cell, gland and cable	FC66TC - "cable length" - "connector" (3/4") FC67TC - "cable length" - "connector" (1") FC68TC - "cable length" - "connector" (2")

2. Select one electrode	Combination pH electrode	DA660CD (3/4"), DA661CD(1"), DA662CD(2")