Metrohm 781 pH/Ion Meter - Manual (Page 55)

5 Configuration
780/781 pH/Ion Meter, Manual
45
Normally each measured value is accompanied by the report
header for documentation purposes. The exact contents of the
report header are defined under CONFIG/Report (see above).
With a larger series of manually triggered measurements it may
be advisable to print out the report header only once with the first
measured value. In this case all the measurements should be
made under the same conditions. The report header will only ap-
pear again when the run number has been reset to zero by
switching the instrument off and on.
calibration report: ON, OFF
You have the possibility of providing each measured value with
the associated calibration data of the electrode used, e.g. within
the context of a GLP documentation.
print crit: time
With this print criterion you can automatically record and output the
measured values at fixed intervals. The following options are used:
date & time: ON, OFF
report header: once, always, OFF
calibration report: ON, OFF
These settings correspond to those of the print criterion 'immedi-
ate' (see above).
time interval: 0.1...4.0...99999.0 s
Automatic measuring value recording can be carried out at time
intervals of down to 0.1 s. Please note that if small time intervals
are used then the amount of data for each measured value must
be adapted accordingly, as otherwise the buffer memory of the
connected printer or PC would be filled too quickly. This means,
for example, that the report header should only be printed out
once at the start of a series of measurements. Otherwise data
could be lost at the RS232 interface of the receiver. In this case
you should consider matching the measured value recording in-
terval to the measured value memory (see Section 5.3).
stop time: OFF, 1...999999 s
The time after which an automatic series of measurements is to
be terminated can be entered in whole seconds. You can also let
a series of measurements run indefinitely without a fixed stop time
and then stop it manually with if you select 'OFF' for this
setting.