Installation - Mettler Toledo thornton Bedienungsanleitung

8

Installation

The sensor location should be in a protected indoor area
with reasonably stable temperature of surrounding air.
Stainless steel or ozone-compatible polymer sample lines
are recommended. Make the sample line as short as pos-
sible to minimize the time delay in sampling which could
allow decay of the ozone. Locate the sensor where it and
the sample water will be easily accessible for calibration.
Caution: Before installation, the membrane with elec-
trolyte must be assembled on the sensor. Also after dry
storage of more than 2 days, rinse out the membrane
body with deionized water and replace the sensor elec-
trolyte solution to achieve full response and stability.
For proper operation, the sensor must be installed in a
METTLER TOLEDO Thornton flow housing.
The flow rate should be between 200 and 500 mL / min.
1. Mount the flow housing with the mounting holes and
hardware appropriate for the panel. Locate the flow
housing under or to the side of the transmitter or any
other electronic equipment to protect the equipment
from water damage. Allow clearance above the sen-
sor for convenient removal for calibration.
2. Flush the upstream sample line at a high flowrate to
remove any debris in the line before connecting the
flow housing.
3. Install appropriate fittings to the
ports of the flow housing, if used, using pipe sealant.
Caution: Tighten fittings only one turn past hand
tight. Do not over-tighten or the plastic flow hous-
ing tapered pipe threads may be damaged.
Connect the sample line and drain to the fittings. The
4.
bottom port is the inlet.
Caution: If using the plastic housing, use a second
wrench when connecting the sample line to a
compression fitting to prevent over-tightening the
pipe thread into the flow housing and damaging
the threads.
5. Connect the AK9 cable to the ozone sensor. Connect
the other end of the cable to the appropriate channel
of the M800 or other compatible METTLER TOLEDO
transmitter. See the transmitter manual for instruc-
tions.
Be sure electrolyte solution has been added to the
6.
sensor before proceeding.
Remove the protective cap and install the sensor
7.
in the flow housing. Set the sample flowrate at
200 – 500 mL / min. Save the cap for protection
when the sensor is removed from the flow housing.
pureO
3
Dissolved Ozone Sensor
pureO Dissolved Ozone Sensor
3
⁄ " NPT (0.635 cm)
1
4
© 07 / 16 Mettler-Toledo GmbH
Printed in Switzerland