System Menu
Operating Instructions Arium
®
Comfort I, Comfort II 47
8.3.6 Accessories
The following components can be adapted to your requirements by
selecting Menu Settings Accessories:
TOC (only for version with UV lamp & TOC)
Dispense Gun
Foot Switch
8.3.7 TOC
On Arium
®
Comfort systems with a UV lamp, a TOC monitor is optionally
available. The TOC monitor is a module for determining the TOC (Total
Organic Carbon) content of ultrapure water. The measuring range of the
TOC monitor is ppb (parts per billion). The measuring principle is based on
UV oxidation and a conductivity measurement.
If your Arium
®
Comfort system is equipped with a TOC monitor, you can
configure the TOC measurement under Menu Settings TOC.
The following operating modes can be selected:
Intervals can be set: 1 – 12h and 24h)
Continuous
Off
The default setting is one-hour interval measurement. This setting is
recommended by Sartorius. For TOC critical applications, you can also
select the continuous measurement mode. Please consider that continuous
measurements can impact cartridge capacity.
TOC Display
In the operating mode, the measured TOC value is regularly indicated in the
display for one hour and | or until the follow-up measurement is performed.
The following readings are displayed:
The unit ppb flashes, no value is indicated. The TOC measurement or the
Arium
®
Comfort system was just switched on. Measurement of the TOC
value is being performed.
A TOC value is shown on the display. The latest TOC value reading is
displayed. It is not older than one hour.
A TOC value is indicated in brackets on the display. The latest TOC value
reading is displayed. This is older than one hour and therefore invalid. It
can be assumed that this measured value no longer reflects the current
ultrapure water content.
A flashing TOC value is indicated in brackets on the display. The latest
TOC value reading is displayed. This is older than one hour and therefore
invalid. The flashing value indicates that a new TOC measurement is
currently being performed.
No TOC value is displayed. The TOC measurement has been switched
off, exceeded the recalibration time and | or no TOC monitor has been
built in.
r r Accessories
TOC
Dispense Gun
Foot Switch
Back
r r r TOC
Interval
1 h
Continuous
Off
Back