Technical Information
 
 
 
  Orion 4-Star Plus Benchtop pH/Conductivity Meter


  • Improved stability algorithm to increase calibration and measurement accuracy
  • Average slope and slope of segment printed with measurement
  • Ability for ATC temperature calibration
  • Increased data log points: 750
  • Ability to turn off data log
  • Ability to print or view last 10 calibrations
  • New Individual method passwords
  • Now with ability to operate an auto-sampler
  • Third decimal point for cell constant entry
  • Added 5 and 10°C as reference temperature options
  • Added second decimal point to temperature compensation
  • Ability to calibrate conductivity temperature sensor
   Product Detail


This competitively-priced, dual channel, dual display pH/conductivity meter is easy to set up and use while providing reliable, accurate conductivity, resistivity, salinity, TDS and temperature measurements for soil and water analysis applications. The rugged meter accepts both 4-electrode and 2-electrode cells and offers a full complement of GLP-related features—including available 21 CFR Part 11 software option.

Optional 1 to 5 point calibration for pH and conductivity ensures accuracy even at extremes of concentration. SMART STABILITYTM and SMART AVERAGINGTM functions simplify the measurement process. You can record and store up to 10 setup parameters and calibrations.

Additional Features: 

  • Bright LCD display with ready indication
  • Convenient built-in Quick-Start Guide
  • Meets all U.S. Pharmacopeia (USP) requirements
  • Automatic or manual temperature compensation
  • IP54 dustproof and splashproof
  • BNC pH electrode and mini DIN locking conductivity probe connectors
  • Automatic or manual pH calibration with 1 to 5 calibration points
  • Auto-buffer-recognition of DIN and NIST/US buffers; automatic or manual temperature compensation
  • Advanced self-tests on meter operation, self-diagnostics
  • GLP IQ/OQ documentation included
  • CE, CSA, UL, TÜV and FCC Class A limits approved
  • Universal power adapter for worldwide operation
  • Three-year replacement warranty.


 
 Orion 4-Star Plus Benchtop pH/Conductivity Meter
 Product# Price  Description  
       
 1117000      -    Meter Only   SELECT  
 1117001      -    Benchtop Meter Kit includes: 9157BNMD, 013605MD, stand, storage solution, buffers and conductivity standards   SELECT  
 1117201      -    Benchtop Meter Kit includes: 9157BNMD, 013005Md and stand   SELECT  
 
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Specifications:
pH :
Readout/ Resolution :-2.000 to 19.999 or 0 to 14 in aqueous solutions / 0.1,0.01,0.001
Relative Accuracy :± 0.002
SMART STABILITY™ and SMART AVERAGING™ :Resolution dependent / automatic
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 µS/cm, cell constant dependent
Relative Accuracy :0.5% ± 1 digit or 0.01 µS/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; Reference-Pin tip; Stirrer-Phono-jack
Solid State pH Sensor :ISFET
Communications :Bi-directional RS232 - Stereo jack, optional USB interface Cable
SPECIAL GLP SOFTWARE FEATURES :
# Of Data Logging Points :200 points by time, stability or manual read with time/date stamp
Calibration Log :Last 10 Calibrations
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 :Universal power adapter and battery power 4 x AA batteries
Regulatory and Safety :CE, CSA, UL, TÜV, FCC Class A limits
ENVIRONMENTAL OPERATING CONDITIONS :
Ambient Operating Temperature :5 to 45 °C
Relative Humidity :5 to 85% Non-Condensing
IP Rating :IP54, splashproof and dustproof
Warranty :36 months (from date of purchase)
* Above data generated under optimal/ controlled circumstances :