Edwards nEXT nEXT85 - Cooling Water; Electrical Data; Figure 7 Maximum Relative Humidity to Avoid Condensation with Water Cooling

Purge gas specicaon Reference data
Maximum permied supply pressure of
the purge gas
1 bar (gauge), 14.5 psig, 2 x 10
5
Pa
3.5 Cooling water
Table 5
Water cooling block supply requirements
Parameter Reference data
Quality Mechanically and opcally clear with no
deposits or turbidity
pH value 6.0 to 8.0
Maximum calcium carbonate
concentraon
75 parts per million
Maximum chloride concentraon 100 parts per million
Minimum oxygen concentraon 4 parts per million
Minimum cooling water ow rate (at
15 °C)
15 l hr
-1
Water temperature range 10 °C to 40 °C
Maximum water pressure
5 bar (gauge), 72.5 psig, 5 x 10
5
Pa gauge
Materials exposed to the cooling water Nickel plated brass
Figure 7 Maximum relave humidity to avoid condensaon with water cooling
3.6 Electrical data
The nEXT pumps can be operated by the customers system or by the manufacturer's TIC
Turbo Instrument Controller, TIC Turbo Controller or TAG Controller.
If using the customer system, use an applicable, pre‑approved, UL / CSA rated 24 ‑ 48 V
d.c. power supply. The size of the power supply depends on the applicaon and the
power limit congured in the nEXT pump. The rate of increase in the pump speed is
dependent on the power limit seng. The power limit seng overrides the necessary
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B8G000880_D - Technical data