CAMBRIDGE SENSOTEC Rapidox 1100E, Инструкция по эксплуатации

Страница: 12 / 49

Cambridge Sensotec Rapidox 1100E Oxygen Analyser Instruction Manual
Version 3.8 8 Last printed 29/08/2012 16:01:00
NB You must always perform a FULL calibration to achieve good accuracy.
6.7 Alarms
The Rapidox is fitted with two independent and fully programmable alarm relay
outputs, which can be programmed to be either normally open (N/O - closes on
alarm) or normally closed (N/C - opens on alarm). You have the option of
assigning each alarm to the oxygen or internal pressure sensors, as well as
enabling the alarm relay circuits, enabling an audible buzzer and enabling a visual
warning on the screen.
The alarms can be programmed by the user via the keypad (2) on the front panel
or using the software provided. To change the alarm settings scroll down the
menu to no. 2 “Set Alarms” and press ENT. Now use the UP & DOWN arrows to
select “Alarm 1” or “Alarm 2” and press ENT. The next screen shows the message
“Assign To:”. Use the UP and DOWN arrows to select O
2
, or Pressure depending
on which measurement you want the alarm to work with, and press ENT to
proceed. The default is O
2
.
The next settings configure the behaviour of the alarm. Use the UP & DOWN
arrows to select ON or OFF for the following parameters:
1. OUTPUTS: This enables the rear panel relay outputs when ON is selected
2. AUDIBLE: This enables or disables the audible buzzer inside the unit
which will sound in an alarm condition
3. VISIBLE: This enables or disables warning messages on the LCD screen on
the front of the Rapidox. During an alarm condition either “AL1” or “AL2”
(or a combination of both) will flash at the bottom right hand corner of the
display
4. POLARITY: This determines whether you are setting a rising or falling
alarm. Use the arrows to change the direction of the alarm to up or down.
A rising alarm means that the alarm will be silent at values below the set-
point but as soon as the value rises above the set-point the alarm will be
triggered
5. SETPOINT: The current alarm set-point is displayed in scientific notation
with a flashing cursor under the first digit. Use the UP & DOWN arrows to
change the digit and the RIGHT arrow to progress until the correct value is
displayed. When done, press ENT to proceed to the next setting
6. CONTACTS: The relay outputs can be set to either normally open (N/O) or
normally closed (N/C). The factory default is N/O, meaning the contacts
will close when an alarm condition occurs. Press ENT to save all the above
settings for the selected alarm.