Orion 4-Star Plus Portable pH/Conductivity Meter

It is an easy to use meter which has a quick start guide located on the back of it to make use in the field even easier. This rugged meter is also able to display conductivity, salinity, TDS, resistivity and temperature measurements in addition to pH. The unit also offers a full complement of GLP related features. It can accept both 4-electrode and 2-electrode cells.

The measurement process is simplified with SMART STABILITYTM?and SMART AVERAGINGTM?functions. Up to 10 setup parameters and calibrations can be logged and stored.

The unit can store up to 750 data log points and also has the ability to turn off data log. For increased calibration and measurement accuracy, the unit has improved stability algorithm.

Additional features:

  • A LCD display with ready indication
  • IP67 waterproof rating (may be immersed for up to one hour with no water incursion)
  • Manual or automatic temperature compensation
  • Automatic or manual pH calibration with 1 to 5 calibration points

 

Orion 4-Star Plus Portable pH/Conductivity Meter Specifications
pH
Range : ?2.000 to 19.999 or 0 to 14 in aqueous solutions
Resolution : 0.1/0.01/0.001
Relative Accuracy : ? 0.002
SMART STABILITY? and SMART AVERAGING? : Resolution dependent / automatic
AUTO-CAL? and/or Manual Calibration: 1 to 5 points; US/NIST, DIN, and custom buffers recognized
mV
Range ? mV / RmV : ? 1999.9
ORP : EH autocalibration to standard hydrogen electrode
Resolution : 0.1
Relative Accuracy : ? 0.2 mV or 0.05%, whichever is greater
CONDUCTIVITY
Range : 0.000 to 3000 mS/cm, auto resolution with cell constant dependence
Resolution : 4 significant digits down to 0.001 ?S/cm, cell constant dependent
Relative Accuracy : 0.5% ? 1 digit or 0.01 ?S/cm, whichever is greater
Cell Constant : 0.001 to 199.9
Cell Compatibility : 2 Cell, 4 Cell, Planar Cell
SMART STABILITY? and SMART AVERAGING? : Resolution dependent / automatic
DirectCal? / AUTO-CAL? : 1 to 5 points / 1 to 3 points
RESISTIVITY :
Range / Resolution : 0.0001 to 100 Megohm / Auto resolution
Relative Accuracy : 0.5 % ? 1 digit
SALINITY
Range/Resolution : 0.01 to 80.0 ppt NaCl equivalent, 0.01 to 42ppt practical salinity / 0.01
Relative Accuracy : ? 0.1 ? 1 digit
TDS
Range / Resolution : 0 to 19999 / 1 mg/L
Relative Accuracy : ? 0.5 % ? 1 digit
Adjustable TDS Factor : 0.00 to 10.00
TEMPERATURE
Range / Resolution : -5 to 105 ?C / 0.1 up to 99.9 ?C, 1.0 over 99.9 ?C
Relative Accuracy : ? 0.1 ?C
Temperature Compensation : Cond (nLF, linear 0.0 to 10.0% / ?C); pH (auto/manual)
Display : Custom backlit LCD, for easy viewing
INPUTS / OUTPUTS
Sensor Inputs : Conductivity-miniDIN - Locking; ATC-miniDIN-Locking; pH - BNC; (all waterproof)
Solid State pH Sensor : ISFET
Communications : Waterproof bi-directional RS232 - Stereo jack, optional USB interface Cable
SPECIAL GLP SOFTWARE FEATURES
# Of Data Logging Points : 750 points by time, stability or manual read with time/date stamp
Calibration Log : Last 10 Calibrations
User Method Storage : 10 Saved
Advanced Self-test and Diagnostics : YES
GLP Electrode Verification : YES
Password Protection : YES
Internet Software Updates / Downloadable Methods : YES
21 CFR Part 11 Software Package : Optional
Power : 4 x AA batteries, powerless date protection
Regulatory and Safety : CE, CSA, UL, T?V, FCC Class A limits
ENVIRONMENTAL OPERATING CONDITIONS
Ambient Operating Temperature : 5 to 45 ?C
Relative Humidity : 5 to 85% Non-Condensing
IP Rating : IP67, waterproof and dustproof
Warranty : 36 months (from date of purchase)
* Above data generated under optimal/controlled circumstances :
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