The Low Product Purity Alarm monitors the purity of the product water
at the system dispense point. The alarm is adjustable from 1.0 MΩ-cm
(1.0μS/cm) to 15.0 MΩ-cm (0.067μS/cm), the factory default is 1.0 MΩ-
cm. To adjust the alarm:
1. Press MENU. Scroll to DI Options and choose Purity Alarm.
2. Use the up and down arrows to set the low alarm. Press OK to accept
settings.
The alarm will alert the user when the product purity falls below the
product purity alarm level by illuminating the SYSTEM ALARM LED,
but does not shut the unit off. See details by pressing MENU and
choosing System Alarm. See the “Error Conditions” section later in this
manual to interpret the error.
The RO % Reject Alarm monitors RO membrane performance and can be
set between 65% and 90% reject. Factory default is 75%. To adjust the
alarm:
1. Press MENU. Scroll to RO Options and choose Low Reject Alarm.
2. Use the up and down arrows to set the low alarm. Press OK to accept
settings.
The alarm will alert the user when the RO % reject falls below the %
reject alarm level by illuminating the SYSTEM ALARM LED. See details
by pressing MENU and choosing System Alarm. See the “Error
Conditions” section later in this manual to interpret the error.
To ensure that the RO membrane(s) in the Thermo Scientific TII are not
damaged by free chlorine in the feed water, the system electronically tracks
the amount of chlorine processed by the carbon prefilter (D502115) and
alerts the user when the carbon capacity is exhausted. There are three
selectable levels of free chlorine content; the factory default is the highest
level (>1.41). If you know the free chlorine level of your feed water supply,
you can set this level through the TII menu:
1. Press MENU. Scroll to RO Options and choose Chlorine Level.
2. Use the up and down arrows to set the appropriate chlorine level in
ppm. Press OK to accept settings.
If you do not know the free chlorine level of your feed water, the setting
should be left at the factory default highest level (>1.41) to avoid damage
to the RO membrane(s).
Type II Water System
4-7
Thermo Scientific
Section 4
Using Your TII
Setting the Low
Product Purity Alarm
Setting the RO %
Reject Alarm
Setting the Feedwater
Chlorine Level
Содержание 7165
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