Chapter 9
Customer Services
118
Orion Versa Star Pro Meter User Manual
Thermo Scientific
Orion Versa Star pH/ISE Module Specifications
Catalog Number
VSTAR-ISE
pH
Range
- 2.000 to 20.000
Resolution
0.1, 0.01, 0.001
Relative Accuracy
± 0.002
Calibration Points
Up to 6
Calibration Editing
Yes
Adjustable ISO Point
Yes
Input Impedance
> 10^
12
ohms
mV / RmV
Range
± 2000.0 mV
Resolution
0.1 mV
Relative Accuracy
± 0.2 mV or ± 0.05 % of reading, whichever is greater
Relative mV Mode
Yes
E
H
ORP Mode
Yes
ISE
Range
0.0001 to 19990
Resolution
0.0001 minimum, 1 to 4 significant digits (user selectable)
Relative Accuracy
± 0.2 mV or ± 0.05 % of reading, whichever is greater
Units
ppm, Molar, mg/L, %, ppb, none
Calibration Points
Up to 6
Calibration Editing
Yes
Adjustable ISO Point
Yes
Advanced Features
Segmented (point-to-point) slope or linear regression, non-
linear selectable auto-blank, low concentration range
stability, electrode type display, temperature compensation
Incremental
Techniques
Single known addition & subtraction, double known addition
& subtraction, single analate addition & subtraction
Temperature
Range
-5 to 105 °C, 22 to 221 °F
Resolution
0.1 °C, 0.1 °F
Relative Accuracy
± 0.1 °C, ± 0.1 °F
Offset Calibration
1 point
Source Options
Manual or automatic with ATC probe
Inputs
BNC
pH, ORP or ion selective electrode (ISE)
Pin Tip
Reference electrode
8 pin MiniDIN
ATC temperature probe
