YOKOGAWA EXA TB TB400G, Руководство пользователя

Страница: 56 / 157

<3. INSTALLATION, PIPING, AND WIRING>
3-3
IM 12E04A02-02E 9th Edition : Mar. 16, 2018-00
3.2 Piping
3.2.1 TB400G-
¨
-
¨
-NN, -KC (without sampling system)
(1) Measuring water piping
For a sample flow of 1.5 to 2 L/min, the sample can be introduced directly into the detector.
Connect the attached ø33 mm X ø25 mm black soft PVC pipe to the Sample inlet. However, if
the sample flow exceeds the range of 1.5 to 2 L/min, satisfy the flow condition by providing, for
example, a head tank (constant level tank) also used for bubble removal. In this case, also use
an ø33 mm X ø25 mm black soft PVC pipe for the piping connection between the head tank and
the detector.
(2) Drain piping
Connect an ø33 mm X ø25 mm black soft PVC pipe to the drain outlet of the detector. In doing
this, carefully run the piping so that a trip does not form in the pipe. If water is trapped in the drain
piping, the detector may be harmed by becoming flooded.
(3) Cleaning water piping
The cleaning water inlet of the detector is sealed with a blind plug.
Note: If a low turbidity (less than 200 mg/L) is to be measured, prepare a sampling system which allows a supply of zero water (tap
water filtered with a zero-turbidity filter).
Cleaning water inlet
Sample inlet
Hose joint
for Ø25 mm hose
Sample outlet
Hose joint
for Ø25 mm hose
F0303.ai
Figure 3.3 Detector Piping Connections