Metrohm 799 GPT Titrino User Manual
Page 23
2.6 Parameters, key
799 GPT Titrino
19
fix EP1 at pH OFF
pK/HNP: OFF
Only equivalence points are recognized which lie within
the set lower and upper limits. The equivalence point
numbering is defined with the windows, see page 23.
Window inquiries continue until the lower limit is set to
"OFF". Up to 9 possible windows.
Always set both limits to ≠ OFF for a valid window.
Interpolation of volumes at fixed times (input range
depends on the measured quantity:
pH: 0...±20.00,
OFF
U, Ipol: 0...±2000 mV, OFF
Upol:
0...±200.0 µA, OFF)
If a fix end point has been set, the volume value for the
input measured value is interpolated from the curve,
see also page 24. The volume values are available as
C5X.
Fix EP's are inquired until "OFF" is set. Up to 9 fix EP's.
Evaluation of pK or HNP (ON, OFF)
pK evaluation in case of pH titrations and half
neutralization potential for U, see page 24.
>preselections
req.ident: OFF
req.smpl size: OFF
limit smpl size: OFF
low lim. 0.0
up lim. 999999
activate pulse: OFF
Preselections for the sequence
Request of identifications after start of titration. (id1,
id1&2, all, OFF)
After start, sample identifications can be inquired
automatically: Only id1, id1 & id2, all three id's or no
inquiries.
Request of sample size after start of titration (value, unit,
all, OFF)
"all" requests the value, then the unit.
Limiting value check for sample size (ON, OFF)
With "on" the error message "sample size out." appears
if the entry is outside the set limits. The limiting values
are shown in the display window.
The absolute value of the limit is checked during sam-
ple size input and during the calculation of the results.
If "on" has been set:
Lower limit for sample size (0.0...999 999)
Upper limit for sample size (0.0...999 999)
Pulse output on I/O line "activate" (L6, pin 1) of the
remote socket (ON, OFF)
see page 224.