The Thermo Scientific Orion Star A214 benchtop meter with electrode arm and probe holder displays pH, ISE (ion selective electrode), and mV readings plus temperature on the large, backlit LCD display for water, waste water, food and beverage, research, and QA/QC laboratory applications. Electrode status, time, date, sample ID, user ID, and calibration points are also displayed with the measurements. The meter is designed for ease of use and reduced training requirements, with clear screen prompts, updateable soft keys, and an interface that supports English, Spanish, French, Italian, German, and Chinese. A pre-programmed auto-read function is available to lock stable readings on the screen, with an indicator alert that signals when the reading is stable. The meter can also be set for timed readings that gather data at specific time intervals. Non-volatile memory holds up to 2,000 data points with time and date stamp. Updates for meter software and data analysis software are available for download.
pH calibration is available up to five points, with automatic recognition for USA/NIST and DIN (Deutsches Institut für Normung) buffers. ISE calibration is available up to five points, with advanced features that include timed end point, linear point-to-point, non-linear selectable auto-blank and low-concentration range stability. Errors can be fixed without a complete recalibration by using the calibration editing function.
The meter has an IP 54 rating for limited ingress of dust and protection against water splashes. The device can be wall-mounted if table space is an issue. Meter input ports include Bayonet Neill-Concelman (BNC), reference pin, 8-Pin Mini-DIN, and stirrer port. Output ports include RS-232 and USB. The meter comes with an electrode arm, probe holder, and a universal power adapter. Certifications for this meter include CE, TÜV, and FCC Class A limits.
Specifications
pH range -2.000 to 20.000 pH
pH relative accuracy + or - 0.02 pH
ISE range 0 to 19,999 in ppm, M, mg/L, %, ppb, or unitless
ISE relative accuracy + or – 0.2mV or + or – 0.5% of reading, whichever is greater
mV range + or – 2,000.0mV
mV relative accuracy + or – 0.2mV or + or – 0.05% of reading, whichever is greater
Temperature range -5 to 105 degrees C (23 to 221 degrees F)
Temperature accuracy + or – 0.1 degree C
Power source Universal power adapter or (4) 1.5V AA batteries (not included)
A multiparameter meter is a benchtop or handheld device that can take multiple readings on a single sample. It measures parameters such as the pH level (acidity or alkalinity of a substance), conductivity (the amount of salts or other compounds present in water), dissolved oxygen (DO, the amount of oxygen in a liquid), temperature, total dissolved solids (TDS, anything present in water other than the pure water molecule and suspended solids), salinity, resistivity, and oxidation reduction potential (ORP). Applications for multiparameter meters include water testing, pharmaceuticals, agriculture, winemaking, water-treatment plants, and acquaculture. Devices with a benchtop body are often used for indoor laboratory use or in a manufacturing setting; handheld, portable devices are typically used for fieldwork. Sensors are used with a meter to measure the parameters of a substance.
Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific and Fisher Scientific brands, among others. The company was founded in 2006 and is headquartered in Waltham, MA.
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