32
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.
System Flags
Press the “2” to enter the System
Flags screens. The system flag
screen will display information for
five settings, displayed on two
screens. Press the ENT key to
move the cursor from one line to the
next, and press the left arrow key to
move from one line to the previous.
Autozero Flag:
The autozero flag
can be used to limit the frequency of
autozero cycles. It can be set
between 0 and 100. If a 0 is
entered, the monitor will enter an
autozero cycle after every area is
sampled (this is the normal default
configuration).
Increasing
this
number will allow the monitor to skip
the autozero cycle if the raw
measurement from the IR-Bench has
not changed significantly. That is, if
the raw signal varies by less than
plus or minus 10 millivolts, and the
autozero flag is set to 10, the monitor
will not perform an autozero cycle.
NOTE: This is effectively reducing
the extreme low-level sensitivity of
the monitor.
If this feature is desired,
set this flag by increasing it in small
steps, 1 or 2 digits at a time, until the
monitor stops autozeroing after
every zone.
1)…Change Code
2)…System Flags
3)…Alarm Test
ABORT ->
4)…Date/Time
<- ABORT
Select Code # To
View Or Change Code
Access Code # 1
Access Code # 1
Code 111
ENT-Exit
Summary of Contents for IR-SNIF-1
Page 50: ...47 05 20 2008 ...
