EXTECH Manuals

Extech DO700 is a 9-in-1 portable dissolved oxygen meter that measures dissolved oxygen concentration/saturation, pH, mV, conductivity, TDS, salinity, resistivity and temperature. It features automatic salinity compensation and manual barometric pressure compensation for DO measurements.

The DO700 is a digital dissolved oxygen, conductivity, TDS and pH meter. It can measure dissolved oxygen, conductivity, pH, mV and temperature parameters. Conductivity measurements also yield TDS (total dissolved solids), Salinity, and Resistivity readings. The built-in microprocessor provides automatic calibration, automatic temperature compensation, data storage, and self-diagnostics. The digital filter improves measurement speed and accuracy. The meter offers a backlit LCD display and is dust-proof and waterproof, meeting IP57. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

Extech Instruments Corporation released the pH/ORP electrodes specification sheet in 2007. The product includes 60120B and 601500 two types of pH/Ref electrodes and 601100 one type of Flat surface electrode, as well as 67500B one type of Redox ORP/Ref electrode. All electrodes use Ag/AgCl electrode filling method, fast response time, response rate is 95%/5s. The 60120B and 601500 two types of electrodes use a rugged polycarbonate structure and are equipped with a glass pH sensor. The pH range is 0 to 14 pH, and the operating temperature is 0 to 80 °C. The 601100 electrode uses a PVC structure and is suitable for pH values of solid products with minimal moisture, such as cheese, soil or electrophoretic/agar gels. The 67500B electrode uses a platinum sensing surface, a polycarbonate body and a sealed reference, which can be used for Redox ORP measurements.

601XXX V1.3 11/01 pH electrode instruction sheet introduces the specifications of the 601100, 601500 and 60120B models, including dimensions, construction material, measuring range, temp. range, reference junction, reference type, isopotential point, precision, connector, cable length and storage container

This document describes the features and characteristics of portable refractometers produced by Extech Instruments Corporation, including the ability to measure the concentration of sugar, salt, lubricants, antifreeze, cutting fluids, and more. The refractometers are easy to operate and provide accurate and repeatable measurements. Automatic temperature compensation models are available.

The Extech RF18 Brix Refractometer is a precision optical instrument that measures the refractive index of a sample, displayed as % Brix. It requires zero adjustment before use and the prism should be cleaned with a soft cloth. The sucrose concentration is determined by observing the boundary of the light and dark fields on the scale.

Congratulations on your purchase of the Extech RF10 or RF15 Brix Refractometer. These precision optical instruments should be handled gently and the optical surface should be avoided from touching. Careful use of these instruments will provide years of reliable service. The refractive index of a sample is measured and displayed in % Brix. The instrument has a range of 0 to 32% Brix with a resolution of 0.2%. The dimensions and weight vary for each model. The instrument requires zero adjustment and cleaning of the prism before use. To take a sample reading, a few drops of the sample liquid are placed on the measurement prism and the liquid is spread across the entire surface without air bubbles or dry spots. The sample remains on the prism for approximately 30 seconds and the sucrose concentration is determined by the intersection of the light/dark boundary observed through the eyepiece.

This manual introduces how to use the Extech RF20 Handheld Salinity Refractometer

This manual introduces the functions and usage methods of the Extech RF40 Battery/Coolant Refractometer with automatic temperature compensation.

Extech 726/10-R1 Portable Digital Stopwatch features a large LCD display, accurate timekeeping to ±3 seconds/day, and accumulated elapsed time and split time measurements. This stopwatch also features an alarm and calendar, and can operate in either 12 or 24 hour mode.

The Extech 365510 Digital Stopwatch with Split Time, Two Competitor monitoring, Alarm and Clock features. The accuracy of the clock is ±3 seconds per 24 hours. Careful use of this stopwatch will provide years of reliable service.

Extech 365515 is a stopwatch and clock with a backlit display. It features 1/100th second resolution for 30 minutes and 1 second resolution up to 24 hours.

This document describes the features and characteristics of the Extech 365515 Water Resistant Stopwatch, including split time, two competitor monitoring, alarm, and clock features.

This document describes a decimal stopwatch/clock called 365535, which features a large triple display, high precision, and memory function.

The document introduces a digital microscope/camera product produced by Extech Instruments Corporation. It has a magnification range of 1x to 200x, LED illumination with adjustable brightness and contrast, built-in scale for length and height measurement, supports real-time image transfer to a personal computer, and allows recording and viewing of videos through USB interface with included software.