16 | Startup and Operation
7070iX TRO Analyzer
Startup and Operation
Before starting operation of your Orion 7070iX Total Residual
Oxidant Analyzer, please ensure the following:
•
Reagent is properly connected.
•
Drain and sample lines are connected and sample is
available.
•
The reagent has been primed. If not, prime the reagent
and ensure the reagent line has been filled.
Placing the TRO Analyzer
into Service
Your TRO Analyzer is now ready for routine operation. To
place the analyzer into routine service, make sure the 3-way
valve points to the left. When the analyzer detects sample
water into the analyzer, the analyzer will start running
automatically. If the sample flow is stopped, the analyzer will
stop running automatically until the sample flow is resumed.
To extend reagent life, users are strongly recommended to
shut off the sample to the analyzer when no measurement is
needed. The user can also control run/stop functionality of the
analyzer by using either interval mode or remote start mode.
The TRO Analyzer is designed to run unattended, analyzing
sample and self-cleaning/flushing the measurement cell while
it is running. All measurement parameters have been
pre-programmed at the factory. Consequently, the analyzer is
prepared for routine operation once the startup procedures
have been completed.
Reagent Installation
Follow the steps to install the reagent.
1. Open the outlet of the cardboard box of the reagent
package.
2. Place the reagent box onto the reagent shelf with the
dispensing spout pointed upwards.
3. Push the gray / blue cap down onto the dispensing spout
of the reagent bag and turn clockwise
to secure.
4. Flip over the reagent box, making sure the reagent flows
into the tubing and then reinsert the box back into the
reagent holder. Secure the box by using the black strap.
Note:
Take care to ensure there is no leaking by aligning the
threads of the cap with bag threads. A click is felt when cap is
locked in place.
5. Ensure the reagent is fully primed by running the Prime
two times (initial instrument install only) to fill the volume
of the transfer tube.
6. Inspect the reagent transfer tubing to be sure that it is
filled with reagent. Gentle tapping can move air bubbles if
they occur. It is important to the accuracy of reagent
delivery that no air bubbles are present in the transfer
tubing.
7. Installation is now complete.
Instrument Operation Modes
The setup menu allows the user to run the Orion 7070ix Total
Residual Oxidant Analyzer in different modes.
To set the operation mode:
Select Menu > Setup > Channel 1 > Operating Mode
Four options are available:
Continuous mode:
The TRO Analyzer will run continuously
and readings on the screen will be updated every 2 seconds.
Interval mode:
The TRO Analyzer will run at user defined
intervals (from 5 minutes to 30 minutes, adjustable in 1minute
increments). The reading on the screen will be updated based
on the user defined interval. The TRO analyzer automatically
starts running at the last two minutes of each interval period,
and reports measurement results for this interval and then
stops measurement until the next interval period. The last
measurement results will remain on the screen with “last read
xx
minutes”.
Remote mode:
The TRO Analyzer can be remotely triggered
to start and stop measurement though an input relay. When
the analyzer is remotely started, the analyzer will run
continuously and update the measurement results every
2 seconds until remotely stopped by the user.
Scheduled Mode:
The TRO Analyzer can start measuring
automatically at a scheduled starting time and stop the
analysis at a scheduled stopping time. The user can setup
“Start / Stop” time frames on the Operating Mode screen.
