Thermo Scientific Scientific AquaSensors DataStick, Руководство пользователя

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Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide 100
Table 6: Change Measurement Configuration Settings
Change Configuration
Settings for… Using the
Command Text…
Where X is a number meaning… Comments
Sensor
Units of Measure
SSUNITS X
PH:
0 = pH units
1 = mV units
ORP:
0 = mV
Conductivity:
0 = µS/cm
1 = %
2 = TDS
3 = M
Ω
•cm
DO/Ozone:
0 = ppm
1 = %
Typing “SSUNITS 3”when a toroidal
conductivity sensor head is installed
will set measurement units to M
Ω
•cm.
As different sensor heads are added to
the family of DataStick measurements
this list will be expanded.
Default is always zero (X = 0).
Temperature
Units of Measure
STUNITS X
0 = ˚ C
1 = ˚ F
Typing “STUNITS 0” will set
temperature units to ˚ C.
Default is always zero (X = 0).
Sensor Data Filter SSFIL X
Filter time constant from 0 to 100 seconds.
X = 0 to X = 100.
The sensor process variable will reach
90% of the final value in “X” seconds.
Temperature Data Filter STFIL X
Filter time constant from 0 to 100 seconds.
Integers only.
X = 0 to X = 100.
The temperature variable will reach 90%
of the final value in “X” seconds. Caution:
It is advised to keep the temperature
and process filter constants equal.
Buffer Set
for pH calibration
SPHBUF X
Buffer type set for auto recognition during
buffer calibration.
0 = 4, 7, 10 pH Buffers
1 = DIN Buffer Standards
pH buffer calibration: the current
reading will be changed to the closest
value in the buffer set selected.
DIN Buffer Standards are: 1.09, 4.65,
6.79, 9.23 and 12.75 pH
Salinity for Dissolved
Oxygen Compensation
SSALT X
Salinity is set from 0 to 999.9 mS/cm.
X = 0 to X = 999.9 mS/cm
Set up the average salinity for
compensation of dissolved oxygen
measurement.
Pressure for Dissolved
Oxygen Compensation
SPRESS X
Pressure is set from 539.2 to 792.4 mmHg
X = 539.2 mmHg to X = 792.4 mmHg
Set up the average pressure for
compensation of measurement.
Conductivity Reference
Temperature
SCRTEMP X
Conductivity reference temperature is set
from 0 ˚ C to 100 ˚ C. X = 0 ˚ C to X = 100 ˚ C
Default value is 25 ˚ C.
Conductivity
Compensation Slope
SCCSLOPE X
Conductivity slope is set from:
X = 0 to X = 9.9% / ˚ C
Default is 2.0%/ ˚ C
Customized
Concentration Table
SUPNT X Y Z
Points in the table where:
X is the table entry (X = 0 through 9)
Y is the Conductivity value in µS/cm.
Z is the Concentration value in %.
Conductivity Range: 0 to 2,000,000.0
Concentration Range: 0 to 99.99%
This table is designed to convert
conductivity measurements to
concentration. Currently uses a built-in
Natural Water table for temperature
compensation. Up to 10 points.
Customized
Concentration Table
SUTBL
When edits to all points are complete use
SUTBL to activate the new table
Entries must be monotonic
with increasing conductivities.