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3 monitoring – Metrohm 900 Touch Control Manual User Manual

Page 468

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29.15 Dosing and Liquid Handling

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452

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900 Touch Control

29.15.5.3

Monitoring

Under [Monitoring], the parameters for monitoring the following quanti-
ties are defined:

Measured value

Temperature

Remote signals or RS-232 commands can be assigned to the monitored
quantities (see "Communication", page 455). These remote signals or
RS-232 commands are sent if a limit has been infringed. This can be used,
for example, to switch a thermostat on/off if necessary.

The parameters are identical for all monitored quantities.

Measuring mode

Selection of the measuring mode to be monitored.

Selection

pH | U

Default value

pH

pH
Dosing with monitoring the pH value.
U
Dosing with monitoring the voltage.

Monitoring

on | off (Default value: off)

Enabling and disabling the monitoring function.

Lower limit

When the monitored quantity falls below this value, the action defined in
the following is triggered.

The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the "Technical specifications" chapter for the control
device used.

Measuring mode pH:
Input range

–20.000 - 20.000

Default value

–20.000

Measuring mode U:
Input range

–2,000.0 - 2,000.0 mV

Default value

–2,000.0 mV