Oakton pHTestr 50, pHTestr 50S, ORPTestr 50, PCTSTestr 50 Data Sheet

...setting the standard again and again®

Oakton® 50 Series

pH Pocket Testers

New design stands up to the challenges of measuring water quality—even stands upright

The Oakton pH pocket testers stand up to everyday use, harsh environments, and the test of time. The testers can even stand upright when the cap is used as the stabilizing base. When you select one of these pH testers, you get a pocketful of useful features and benefits.

-Double-junction pH electrode sensor is dependable, long lasting, and easy to maintain—ideal for use with sulfides, heavy metals, organics, Tris buffer, or protein solids

-Easy-to-replace sensor module lets you use the tester body over and over again

-Intuitive interface has self-diagnostic error messages, and battery-life and stable reading indicators

-Simple operation at your fingertips with MENU button, 1-button calibration, and HOLD button to freeze readings for recording

-Valox® body resists most chemicals and is rugged, dustproof, waterproof, and IP67 rated

-Leakproof cap functions as a sample cup, sensor hydrating cup, and stabilizing base to stand the meter upright

-Uses common AAA batteries, and auto shutoff extends battery life

Cap Design: versatile and functional

Easily replace sensor module with a twist—no tools required

Tester stands upright	Leakproof: use to	Use as a sample
with wide, stable	store and keep	cup to calibrate or
base	electrode hydrated	measure

1-888-4OAKTON (1-888-462-5866) • 1-847-549-7600 • [e-mail]

Applications

Agriculture | Aquaculture & Aquariums | Cooling Towers | Education | Environmental Monitoring | Food & Beverage | Hydroponics | Laboratories | Manufacturing | Pools & Spas | Printing | Water & Wastewater Treatment

pHTestr® 50 Pocket Tester

-Automatic temperature compensation ensures accurate reading in varying environments

-Up to 3-point pH calibration with NIST or USA autobuffer recognition

-EPA compliant

ORPTestr® 50

Pocket Tester

-Double-junction platinum electrode ideal for checking dirty water, heavy metals, sulfides, and organics

-Wide mV range for variety of common applications including industrial waste treatment, oxidation of cyanide, pulp bleaching, bleach manufacturing, and water sanitation

pHTestr® 50S Spear-Tip

Pocket Tester

-Unique junction design increases electrolyte flow providing greater contact between sample and reference for fast, stable readings

-Up to 3-point pH calibration with NIST or USA autobuffer recognition

-Rugged spear tip penetrates soft solids and semisolid materials

PCTSTestr™ 50

Multiparameter

Pocket Tester

-Versatile—measures pH, conductivity, TDS, and salinity

-Compatible with a wide range of samples with long-life pH electrode and stainless steel pin-style conductivity sensor

-Up to 3-point pH calibration with NIST or USA autobuffer recognition, user-adjustable temperature coefficient, and self-adjusting TDS and salinity factors

	Includes: protective plastic storage case (except pHTester 50S), lanyard, and batteries.						67
	Model	pHTestr 50	pHTestr 50S	ORPTestr 50		PCTSTestr 50
	Catalog number	WD-35634-15	WD-35634-25	WD-35634-45		WD-35634-35
						pH: −1.00 to 15.0
					Conductivity: 0.0 to 200.0 μS,
	Range	–1.00 to 15.0 pH	–1.00 to 15.0 pH	–1000 to 1000 mV	200 to 2000 μS; 2.00 to 20.00 mS
					TDS: 0.0 to 100.0 ppm, 100 to 1000 ppm;
					0.10 to 10.00 ppt (TDS factor 0.5)
					Salinity: 0.00 to 10.00 ppt
						pH: 0.01
	Resolution	0.01 pH	0.01 pH	±1 mV	Conductivity: 0.1 μS, 1 μS; 0.01 mS
					TDS: 0.1 ppm, 1 ppm; 0.01 ppt
						Salinity: 0.10 ppt
						pH: ±0.01
	Accuracy	±0.01 pH	±0.01 pH	±2 mV	Conductivity: ±1% full-scale
					TDS: ±1% full-scale
					Salinity: ±1% full-scale
	Temperature compensation	Automatic, 32 to 140°F (0 to 60°C)	Manual, 32 to 140°F (0 to 60°C)	Manual	Automatic, 32 to 140°F (0 to 60°C)
	Calibration	Up to 3 points	Up to 3 points	1 point, offset ±200 mV	Up to 3 points (pH, conductivity and TDS)
	Buffer recognition	USA 4.01, 7.00, 10.01;	USA 4.01, 7.00, 10.01;	—	USA 4.01, 7.00, 10.01;
		NIST 4.01, 6.86, 9.18	NIST 4.01, 6.86, 9.18		NIST 4.01, 6.86, 9.18
	Temperature range	32 to 140°F (0 to 60°C)	32 to 140°F (0 to 60°C)	32 to 140°F (0 to 60°C)	32 to 140°F (0 to 60°C)
	Temperature resolution	0.1°F/°C	0.1°F/°C	0.1°F/°C		0.1°F/°C
		±0.9°F (0.5°C) + 1 LSD from 32 to 122°F			±0.9°F (0.5°C) from 32 to 122°F
	Temperature accuracy	(0 to 50°C); ±1.8°F (1.0°C) + 1 LSD from	—	—	(0 to 50°C); ±1.8°F (1.0°C) from
		122 to 140°F (50 to 60°C)			122 to 140°F (50 to 60°C)
	Power	Four AAA 1.5 V batteries (included)	Four AAA 1.5 V batteries (included)	Four AAA 1.5 V batteries (included)	Four AAA 1.5 V batteries (included)

1-888-4OAKTON (1-888-462-5866) • 1-847-549-7600 • [e-mail]

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