Edwards nEXT 55, Инструкция по эксплуатации

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Table 47
Water cooler
Water Cooler
Item Number
nEXT 55/85 water cooler B8G200833
13.3 Flange heater
A flange heater increases the degassing of the pump to enable it to achieve lower
pressures. It can also be used to protect the pump from condensation of contaminants.
The flange heaters are available in 110 V and 240 V versions.
Note:
Use the flange heater only with CF variants.
Table 48
Flange heater
Water Cooler
Item Number
nEXT 55/85 (110 V) flange heater B8G200823
nEXT 55/85 (240 V) flange heater B8G200824
13.4 TAV5 vent valve
A 24 V d.c. TAV5 solenoid-operated vent valve options are available for system venting.
These are normally open (N/O) or normally closed (N/C).
The valves are available with either a wired connector which connects directly to the
auxiliary port on the controller or as a bare wire option.
All vent valves have an 0.5 mm diameter orifice and are applicable to vent small vacuum
systems of less than 5 litres.
The vent valves are pre-wired to Vent Option 1 and the default is set to fully vent at 50%
(option 0). The solenoid valve is installed in place of the manual valve, or can be installed
with an adaptor (supplied with the valve). Use the valves with an applicable NW10
flanged port on the vacuum system. The vent port adaptor lets the vent port or the
purge port to be used with an applicable NW10 fitting.
Table 49 TAV vent valve and vent port adaptor
Product
Item Number
nEXT 55/85 TAV5 kit N/C connector fitted
(0.3 m)
B8G200835
nEXT 55/85 TAV5 kit N/C bare wire (3 m) B58066040
nEXT 55/85 TAV5 kit N/O connector fitted
(0.3 m)
B8G200834
nEXT 55/85 TAV5 kit N/O bare wire (3 m) B58066010
13.5 VRX vent restrictor
Use a VRX installed orifice vent restrictor to restrict the flow of vent gas into the pump.
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