Metrohm 726 Titroprocessor - Manual (Page 178)

8.8 MEAS
726 Titroprocessor, Instructions for use 172 172
The measuring parameters
MEAS_PH* potent. or volta-/amperometric measurement
Sensor Signal drift 50 mV/min
Meas. input A1 Equilibr.time auto s
Temperature 25.0
°C
applies to ⇒ MEAS_PH*, MEAS_U*, MEAS_UPOL*, MEAS_IPOL*
MEAS_T*
see below.
The measuring parameters apply to single, drift-controlled measurements.
Comment
Comments on measuring mode
(50 characters)
The commentary on the mode is used for identifying the
specific measurement within a determination. This is
chiefly used for more complex methods with several ti-
tration or measuring modes.
Signal drift
Limit for measurement drift
for MEAS_PH/U/IPOL: 0.5…50…999 mV/min | off
for MEAS_UPOL: 0.1…50…100 µA/min | off
The measured value is only accepted when the variation
in the sensor measurement falls below the given value
for the measurement drift. If this is delayed then the
measurement will nevertheless be accepted when the
preset delay period (see below) has elapsed.
This measured value drift control can be switched off
('off'). If drift control is switched off the preset delay
period (see below) will be strictly observed. This can be
favorable for multiple measurements with short meas-
uring interval cycles.
Meas. input
Sensor connection sockets
(A1,A2, Apol, Adiff, B1, B2, Bpol, Bdiff)
The measuring inputs A1, A2 and Apol are located on
the rear panel of the instrument in the measuring group
Sensors A. Adiff stands for the measuring amplifier
switch on the measurement inputs A1, A2 and Ref.
If a second measuring group (Sensors B) is present
then the addresses B1, B2 , Bpol and Bdiff can be
similarly used. Depending on the measuring quantity
only sensible sensor addresses can be selected,
e.g. for MEAS_IPOL* only Apol or Bpol.