In-Situ Flow Cell for Low-Flow System with RDO Sensor (purchased before 09/2008) User Manual
Page 4
Multi-Parameter Water Quality TROLL
®
1 800 446 7488
(toll-free, US and Canada) or 970 498 1500
www.in-situ.com
Due to continuing product development this information is subject to change without notice. In-Situ and the In-Situ logo, Win-Situ, TROLL, Flow Sense,
and RDO are trademarks or registered trademarks of In-Situ Inc. Copyright © 2006 by In-Situ Inc. All rights reserved.
0057602 09/06
page 4 of 4
C. PREPARE THE FLOW CELL
1. Select the NPT barbed fitting for the size tubing to be used
(
3
/
8
” or ½”). Tape the NPT threads. Screw into threaded
holes on base (inflow) and top (outflow) of flow cell.
Tighten by hand or with a wrench. Do not overtighten.
2. If using the 3-way valve, attach it to the intake fitting
(bottom) with a short length of tubing. Run another length
of tubing from the valve to the well.
3. If using the anti-siphon check valve, attach it to the outlet
fitting (top) with a short length of tubing. Arrow on valve
indicates flow direction. Use additional tubing if needed to
direct outflow as required.
4. Attach hoses to valves and secure with clamps (may not be
needed with very low flow rates).
5. To provide stability, attach spike to base of flow cell and
press into the ground. Can be secured at a small angle
from vertical (< 30°) to allow bubbles to self-purge from
the cell.
6. Insert the MP TROLL / RDO sensor assembly into the top of
the flow cell and screw on hand-tight.
The RDO Low-Flow Flowcell is designed
for use with the MP TROLL 9500. Do not
use with the TROLL 9000.
Field installation with optional base plate
ACCESSORIES
CATALOG NO.
Flat base 12" x 12" PVC, with hardware ............... 0044430
Flow-Sense™ low-flow software .................................... NA
(included in Win-Situ 4
®
and Pocket-Situ 4, version 4.57 and later)
Hardware fittings kit ............................................... 0044340
(contains 4 barbed adapters, 6 hose clamps, pipe thread tape)
GUIDELINES AND PRECAUTIONS
•
Flow is controlled by the pump, not the 3-way ball valve.
The valve may be used to divert flow for sample collection
•
To decrease air bubbles in the system, be sure to tape the
adapter fittings before installation
•
In-Situ's Flow-Sense low-flow software calculates volume
automatically
•
Air bubbles are unavoidable in low-flow sampling. Expect
a somewhat longer stabilization time for RDO than for
other sensors
RDO FLOW CELL
Catalog No. 0057600