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Terminal
L
Hot or phase (L)
N
G
Protective earth ground (G)
3.4 Plumbing
3.4.1 Connect the sample water and cooling water
Note: Do not install metric equivalent tubing, pipes or fittings on the instrument. Leaks can occur.
Items to collect:
• Shutoff valve (3x)
• ¼-inch tubing OD
3
•
/
-inch tubing ID
8
• Tubing clamp
1. Use ¼-inch tubing and three shutoff valves to connect the sample water and cooling water. Refer
to
Figure
7.
3
2. Use the supplied
drain. Refer to
Figure
Notes:
• Do not connect cooling water to instruments with the regenerative cooling option. Instruments
with the regenerative cooling option do not have a cooling water inlet or outlet.
• Refer to
Specifications
• Make sure to use a back pressure regulator or a head cup to control the sample water
pressure and keep a constant sample flow rate.
• Keep the operating temperature of the sample flow as constant as possible for best
performance.
• For the best results, use a temperature-controlled cooling water source that keeps the cooling
water at 25 °C (77 °F).
• Make the drain lines as short as possible.
• Make sure that the drain lines have a constant slope down.
• Make sure that the drain lines do not have sharp bends and are not pinched.
• Make sure that the drain lines are open to air and are at zero back pressure.
Table 1 Wiring information—AC power
Description
Neutral (N)
/
-inch ID tubing and tubing clamp to connect the condensate drain to an open
8
7.
on page 3 for the cooling water and sample water specifications.
Color—North America
Black
White
Green
Color—EU
Brown
Blue
Yellow with green stripe
English 15
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