Installation
3.3 In-Line Type Mounting
In addition to the General Requirements outlined above, note the following with regard to
•Make certain the liquid head is above the cell location during measurement. A vertical insertion (from above) or a horizontal insertion can be used.
•Allow at least
•It is usually best to have the solution flow up into the end of the cell since it is less likely to result in clogging by solids settling in the cell channels.
•To be sure that a representative sample is being measured at all times, the solution must continuously move through the cell channels. In a rapidly moving solution, the assembly may be mounted so that the existing circulation forces the solution through the channels. When measurements are made in quiescent solutions, artificial means must be provided to force the solution through the cell. In some cases, this may be accomplished by moving the cell up and down.
Installation
Tighten the cell into a 3/4” NPT threaded opening (do not exceed a tightening torque greater than that indicated in Section 3.5) using a Teflon thread compound (preferably Teflon tape).
3.4 Flow-Type Mounting
In addition to the General Requirements outlined in Section 3.1, note the following with regard to flow- type mounting:
•When mounting the cell in a pipe tee or flow chamber such as shown in Figure
•In general, the cell should be mounted so that the sample will flow through the channel toward the mounting end of the cell, exiting through the other channel hole or through the outer electrode holes. See Figure
•Locate the cell on the pressure side, not the vacuum side, of pumps. See Figure
•Avoid a horizontal cell mounting having the flow channel, see Figure
•The 3/4” tee arrangement, Figure
Installation
1.Tighten the cell into a 3/4” pipe tee (do not exceed a tightening torque greater than that indicated in Section 3.5).
2.If the
3.To avoid cracking the 055919 flow chamber, use Teflon tape on cell threads and tighten cell only enough to prevent leakage.
6 | Installation and Maintenance Manual | 10/07 |