ISCO 4230 - 4.7 Parameter Sensing

4230 Flow Meter
Section 4 Optional Equipment
4-11
4.7 Parameter Sensing All Isco 4200 Series Flow Meters have the capability of dis-
playing, recording, and (if FLOWLINK software is used) storing
data provided from parameter sensors. The parameter sensors
that are available from Isco for use with 4200 Series Flow Meters
are for temperature measurement, dissolved oxygen (D.O.) and
pH (indicating the acidity or alkalinity of a solution), and the YSI
600 Multi-Parameter Sonde. See Section 4.11 for information on
the YSI 600 Sonde. This section covers the Isco pH, D.O., and
temperature sensors.
4.7.1 Installation of
Parameter Probes
All three parameter probes, as well as other Isco probes such as
the submerged probe level sensor and area-velocity probe,
require complete submersion in the flow stream for proper oper-
ation. Dry operation can damage the pH and D.O. probes. The
YSI Sonde (only) may be suspended vertically in the stream. Isco
offers a series of rings that provide mounting for all probes in
round pipes.
• Each probe snap-mounts to a specialized sensor carrier.
• The sensor carrier then attaches to the rings or
mounting straps.
• The probe cable is carefully routed out of the stream.
• Only the temperature probe can connect directly to the
flow meter's parameter probe connector.
• The pH and D.O. probes both connect to parameter
modules (amplifiers). The pH probe connects to the 201
pH Module and the D.O. probe connects to the 270 D.O.
Module. The modules are not interchangeable.
Note
Isco flow meters are built with one parameter sensing port. You
must select temperature, D.O. with temperature, or pH with
temperature. If you want to change probes later, you can, but
you will need to change certain aspects of the flow meter's pro-
gram. Selection of either pH or D.O. in step 1 of the program
(where units of measure are defined) will lock out any mention
of the other probe in the menus for the rest of the program.
The Parameter Modules themselves plug into the Parameter
Probe connector on the flow meter.
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LACK +12 VDC
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HITE DATA