Metrohm 796 Titroprocessor - Manual (Page 178)

8.8 MEAS
796 Titroprocessor, Instructions for use 172 172
8.8 MEAS
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³ ³
³ t/s Command Parameters Parameters ³
³ ДДДДД ДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД ³
³ 1 MEAS_PH* ³
³ Sensor Signal drift 50 mV/Min ³
³ Meas. input A1 Equilibr.time auto s ³
³ Temperature 25.0 øC ³
³ 2 MEAS_U* ³
³ Sensor Signal drift 50 mV/Min ³
³ Meas. input A1 Equilibr.time auto s ³
³ Temperature 25.0 øC ³
³ 3 MEAS_UPOL* ³
³ Sensor Signal drift 50 æA/Min ³
³ Meas. input Apol Equilibr.time auto s ³
³ Temperature 25.0 øC ³
³ 4 MEAS_IPOL* ³
³ Sensor Signal drift 50 mV/Min ³
³ Meas. input Apol Equilibr.time auto s ³
³ Temperature 25.0 øC ³
³ 5 MEAS_T* ³
³ Sensor Equilibr.time 1 s ³
³ Meas. input AT ³
АДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДД QUIT ÄÙ
It is possible to carry out both a drift-controlled single measurement
(standard) and also a series of drift-controlled measurements (multiple) with
a single command.
Five different MEAS modes are available for measurements; they differ only
in the measured quantity:
MEAS_PH* measured quantity pH
MEAS_U* measured quantity mV
MEAS_UPOL* measured quantity µA (selectable pol.voltage in mV)
MEAS_IPOL* measured quantity mV (selectable pol.current in µA)
MEAS_T* measured quantity °C (temperature measurement with
Pt100/1000)
The following information applies to all MEAS modes. Any variations are
noted.
MEAS modes create the following system variables:
R$$ End result / live result
X$$ Intermediate result / live result (not mentioned in report)
C$$ Common variables (automatic assignment)
IM Initial measured value at start of mode; depends on measuring
quantity
SM Start value, first measured value in MP list
CM Final value at end of measurement, last measured value in MP list
IT Initial temperature at start of mode in °C
ST Start temperature at start of measurement, for first measured value
CT Closing temperature at end of measurement in °C
MD Mode duration (total length of measurement) in s
SD Start duration in s (for preparing the measurement)
$LM Live measured value (depends on measured quantity)
For MEAS_T* the measured values are equated with the temperature val-
ues.