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Orion Star A325 pH/Conductivity Portable Meter

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List Price: $1,564.00
Clarkson Price: $1,329.40
You Save: $234.60 (15 %)
Clarkson Catalog Number: STARA3250
Manufacturer: Thermo Orion
Supplier Catalog Number: STARA3250
Manufacturer Direct Shipment
free shipping
Orion STARA3250, Orion STARA3255
Clarkson STARA3250
Orion Star A325 pH/Conductivity Portable Meter
Thermo Orion STARA3250 / Cole-Parmer  EW-58825-68 / Daigger EF9439J / Fisher 13-645-563 / VWR 89206-364
Thomas 1218X64 / Spectrum 246-92224
Orion Star A325 pH/Conductivity Portable Multiparameter Meter

Get high accuracy and premium performance everywhere you need it with the Thermo Scientific Orion Star A325 pH and Conductivity Portable Meter, designed for a wide range of pH, mV, ORP, conductivity, total dissolved solids (TDS), salinity, resistivity and temperature testing and field applications. Evaluate samples in the most demanding locations using this waterproof meter with IP67-rated housing. Use the two channels to measure pH and conductivity simultaneously or view each channel separately. Log up to 5000 data point sets with time / date stamp and transfer logs to a printer or computer.

Take your measurements at the source with our premium line of portable meters. The Thermo Scientific Orion Star A325 pH/conductivity portable meter offers an information-rich screen and user-friendly operation. This rugged, waterproof portable meter is ready to tackle the elements with you. Orion Star A325 pH/conductivity portable meters are designed to be easy to use, dependable field meters that offer advanced features and functions including a 5000 point date log with sample ID and user ID options, calibration and high/low limit alarms and password-protected measurement methods.
  • Combined convenience with the benefits of a pH meter and conductivity meter in one easy-to-use system
  • Measure pH, mV, relative mV or ORP with temperature on channel one and measure conductivity, TDS, salinity or resistivity with temperature on channel two
  • Easily view individual measurements on a full screen display and quickly toggle to a split screen display to view multiple measurements simultaneously
  • Perform up to a five point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values
  • Perform up to a five point conductivity calibration
  • Calibration editing option allows individual points to be fixed without a full recalibration
  • Auto-ranging conductivity values offer consistent readings across entire measurement range without need to recalibrate
  • Use linear, non-linear, EP (USP) or off conductivity temperature compensation with 5, 10, 15, 20 or 25°C reference temperatures
  • Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
  • Capture your critical readings with measurement stability indicator and selectable read modes – Auto-Read holds a stable reading, Continuous shows changing readings with hold option and Timed logs data at specific intervals
  • Data log collects and date/time stamps up to 5,000 measurement sets with optional sample ID and user ID
  • Calibration log stores ten most recent calibrations
  • Non-volatile meter memory ensures your data and settings are protected, even with loss of power
  • Orion Star Com software facilitates data transfer to a computer via USB or RS232 connections
  • Flexible power options with AA batteries or optional universal power adapter
  • IP67-rated housing is waterproof for rugged field operation
pH Range -2.000 to 20.000
Resolution 0.1, 0.01, 0.001
Relative Accuracy ±0.002
Calibration Points Up to 5
Calibration Editing Yes
mV/RmV Range ±2000.0 mV
Relative Accuracy ±0.2 mV or ±0.05 % of reading whichever is greater
EH ORP Mode Yes
Conductivity Range 0.001 µS to 3000 mS
Resolution 0.001 μS minimum, auto ranging, up to 4 significant digits
Relative Accuracy 0.5 % of reading ±1 digit > 3 μS,
0.5 % of reading ±0.01 μS ≤ 3 μS
Reference Temp 5, 10, 15, 20, 25 ºC
Temperature Compensation Linear, nonlinear nLFn & nLFu, EP (USP), off
Compatible Cell Constants 0.001 to 199.9
Calibration Points Up to 5 points
Calibration Editing Yes
Resistivity Range 2 ohm to 100 meg-ohm
Resolution 1 ohm or 0.1 meg-ohm, auto ranging
Relative Accuracy 0.5 % reading ±1 digit
Salinity Type Practical salinity or natural sea water
Range 0.06 to 80.00 psu, 0.05 to 42.00 ppt
Relative Accuracy 0.5 % reading ±1 digit
TDS Range 0.001 to 200.0 ppt
Relative Accuracy ±0.5 % reading ±1 digit
TDS Factor Range Linear 0.02 to 9.99
Temperature Range -5 to 105 ºC, 23 to 221 ºF
Resolution 0.1 ºC, 0.1 ºF
Relative Accuracy ±0.1 ºC, ±0.1 ºF
Offset Calibration 1 point
Datalogging Memory 5000 with time and date stamp
Log Function Manual, ready (includes AUTO-READ), timed
Inputs pH Electrode BNC, reference pin
Conductivity or ATC Probe 8-pin mini-DIN
Output RS232, USB
Power AC Adapter Optional—universal, 100-240 VAC
Battery Power Included—4 AAs
Battery Life 800 hrs
Catalog Number Description Includes
STARA3250 * Orion Star A325 pH/Conductivity Portable Meter Four AA batteries (installed)
Printed quick start guide and literature CD
USB computer cable
STARA3255 Orion Star A325 pH/Conductivity Portable Meter Kit 8107UWMMD Orion Ultra Triode gel-filled epoxy-body pH/ATC electrode, 3 m cable
013010MD Orion DuraProbe conductivity probe, 3 m cable
910410-WA Orion pH 4.01 buffer pouches
910710 Orion pH 7.00 buffer pouches
911010 Orion pH 10.01 buffer pouches
810001 Orion ROSS electrode storage solution, 475 mL
01100710 Orion 1413 μS conductivitystd pouches
911110 Orion rinse solution pouches
Protective armor with electrode holders and storage sleeve
Hard-sided field case
Four AA batteries (installed)
Printed quick start guide and literature CD
USB computer cable
Additional Information
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