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Laboratory/General Use Plastic and Glass ORP Electrodes - SG500/S500 Series

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• Range of Measurement: +/-2000mV or range of ORP meter
• Temperature/Pressure: Max 176F(80C)/50psig(3.4bar)
• Cable Length: 39" (1m)
• Silver or gold versions available
• Combination or half cell designs
• Single or double reference junction
• Sealed or refillable junctions
• Glass or plastic bodies

Model Number: SG500/S500 Series
Data Sheet:

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Product Specification

Laboratory/General Use Plastic and Glass ORP Electrodes

Parts covered by this product data sheet include:
Model # SG500C-ORP, SG500CD-ORP, S500C-ORP, S500CD-ORP, S550C-ORP, S550CD-ORP, S555C-ORP, S555C-ORP-AU, S555CD-ORP, S350CD-ORP, S450CD-ORP

Plastic and Glass ORP Electrodes Features
• Choice of extended rod or high surface area
• Silver or gold versions available
• Combination or half cell designs
• Single or double reference junction
• Sealed or refillable junctions
• Glass or plastic bodies

Plastic and Glass ORP Electrodes Description
Which material and configuration should I choose?
Sensorex makes both types—separate ORP half cells and combination ORP electrodes. The convenience of handling one combination electrode as compared to using separate ORP and reference electrodes has been well established in laboratory and portable ORP measurements. And since the price of Sensorex combination electrodes is much less than the total price of the separate electrodes, separate electrodes are used only for special purposes.

Sensorex utilizes 99.993% pure platinum to ensure there are no impurities in the platinum that could cause adverse reactions or interferences in ORP measurements

Glass or Plastic Body Electrodes?
Sensorex makes both body types, and they both provide identical excellent ORP measurements. Today's plastics allow ORP electrodes to be constructed with sturdy and chemically resistant epoxy or premium ULTEM bodies. A recessed protected design of the Sensorex plastic body electrodes extends over the extended tip or band measuring to ensure that the surface will not be damaged.

Single or Double Junction Reference?

Most ORP measurements can be made with single junction reference electrodes. However, materials such as heavy metals, proteins and sulfides can precipitate at the junction. Double junction designs use a buffering salt such as KNO3 in the lower chamber contacting the sample, and prevent these reactions. For separate reference half cells, see LabSpecs.

Plastic and Glass ORP Electrodes Specifications

Wetted Materials	Epoxy (body), Glass, Platinum, Gold or silver (special versions)
Range of Measurement	+/-2000mV or range of ORP meter
Temperature/Pressure	Max 176F(80C)/50psig(3.4bar)
Cable Length	39" (1m)

Plastic and Glass ORP Electrodes Ordering Information

Model Number	Dimensions (L x Dia.)	Measuring Surface	Junction Type
S500C-ORP	6” (150mm) x ½” (12mm)	Platinum Polished Rod	Single Junction
S500CD-ORP	6” (150mm) x ½” (12mm)	Platinum Polished Rod	Double Junction
S550C-ORP*	6” (150mm) x ½” (12mm)	Platinum Extended Tip	Single Junction
S550CD-ORP*	6” (150mm) x ½” (12mm)	Platinum Extended Tip	Double Junction
S555C-ORP*	6” (150mm) x ½” (12mm)	High Surface Area Platinum	Single Junction
S555CD-ORP*	6” (150mm) x ½” (12mm)	High Surface Area Platinum	Double Junction
S350CD-ORP	6” (150mm) x ½” (12mm)	Platinum flat	Double Junction - HDPE
S450CD-ORP	4.5"(115mm) x 5/8" (15mm)	Platinum flat	Double Junction - HDPE
SG500C-ORP	6” (150mm) x ½” (12mm)	Platinum Polished Rod	Single Junction
SG500CD-ORP	6” (150mm) x ½” (12mm)	Platinum Polished Rod	Double Junction
S300C-ORP	12"(300mm) x 3/8" (9mm)	Platinum Extended Tip	Single Junction
S300CD-ORP	12"(300mm) x 3/8" (9mm)	Platinum Extended Tip	Double Junction