35
R-407A-AC9000, R-408A, R-409A, R-
410A-AZ20, R-500, R-502, R-503, R-507-
AZ50
This list changes over time, so it is
recommended that the operator review the
Gas Code screens for a complete list of
gasses a given monitor is capable of
monitoring.
Enter the tube length, in feet, if the tube
length is greater than 100 feet. If the tube
length is shorter than 100 feet, leave the
setting at the factory default of 100. When
the distance has been entered, press the
“ENT” key to display the second sample
setup screen.
Unless specified otherwise, SenTech
Corporation recommends the following
alarm settings for all refrigerants except R-
123:
Low = 25 ppm
Main = 50 ppm
High = 500 ppm
Unless specified otherwise, SenTech
Corporation recommends the following
alarm settings for R-123:
Low = 25 ppm
Main = 50 ppm
High = 150 ppm
These settings are based on the current
acceptable exposure levels and short-term
exposure levels on a time weighted
average for refrigerants. SenTech
recommends that under no circumstances
should a refrigerant monitor be set above
the short-term exposure level. These are
recommended settings only. Refer to local
codes and regulations for the appropriate
settings for a given application.
System Setup: The System Setup menus
are accessed from the Setup menu by
pressing the "3" key. System setup
consists of two screens that allow the user
to change passwords, change system flags,
test the alarm circuits and set the time and
date. The user can toggle from one screen
to the other by using the left and right arrow
keys.
Change Code
The operator can change passwords 1
through 4 by pressing the "1" key. The
operator then enters the code number (1-4)
and is able to enter the new password.
-
50
1)…Change Code
2)…System Flags
3)…Alarm Test
4)…Date/Time
5)…Trending
Select Code # To
Code 111
R-134A 8
Distance 250 -
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