HF scientific 19944 Triple Validation Turbidimeter - 0-100 NTU - Manual (Page 11)

TVT2 (5/02)
Rev. 1.7 (.pdf) 6
3.2 Plumbing
The recommended plumbing for the instrument is shown in Figure 4. The instrument is
designed to limit the flow to the range of 0.4 – 0.6 liters/minute depending on the system
backpressure. Ensure that you supply the instrument with a process flow capable of
sustaining this level. Quick-connect fittings are supplied on the inlet and outlet of the
instrument; these fitting help speed up calibration procedures. These fittings will accept
0.25” OD x 0.170 ” ID tubing. Opaque tubing should be used if the tubing will be
exposed to sunlight.
Figure 4: Recommended Plumbing for the Instrument
3.3 Electrical Connections
All of the electrical connections to the instrument are made through the field terminal box
located on the lower section of the instrument. The connectors are labeled on the
instrument and are self-descriptive (see Figure 5). Please follow all local and government
recommendations and methods for installation of electrical connections to and between
the instrument and other peripheral devices.