Technical information

TM
Equipment
www.purityplusgas.com
90
Low Loss Principle Materials Specifi cations
Description Advanced Features
539 Series
Power Requirements
110 or 220 VAC
Maximum Inlet Pressure
3,000 PSIG (210 BAR)
Temperature Range
0°F to 140°F (-18°C to 60°C)
Flow Capacity
Cv = 1.0
Filter
40-micron
Inlet Connection
½" FPT
Outlet Connection
½" FPT
Weight
67 lbs. (30.4 kg)
Regulator and Valve Bodies
Brass barstock
Valve Stems
316L stainless steel
Valve Seats
PCTFE
Seals
PTFE, PCTFE and Viton
®
Enclosure
Powder-coated steel
• Microprocessor Control
Fully automatic priority assignment
• Field Adjustable Parameters
Enables process fl exibility
• On-Site Source Selection
Liquid cylinder or high-pressure service
• Low Loss Technology
Reduces residual return
• Electronic Economizer
Eliminates vent loss from 230, 350 or
500 PSIG liquid cylinders
• Process Gas or Air Actuated Pilot Valves
Simple installation
• RS 232 or 485 Communications
Provides remote monitoring of supply
The IntelliSwitch electronic switchover
provides continuous gas supply from liquid
cylinders, high pressure cylinders, or a
combination of the two allowing the end-user
to select the most economical mode of gas
supply. Microprocessor control lowers yearly
gas cost by eliminating liquid cylinder vent
loss and excess residual return, making the
IntelliSwitch the perfect choice for laboratory,
pilot plant or process applications.
The Low Loss Principle consists of two features,
the Look-Back and the Economizer. When the
IntelliSwitch electronics sense that the primary
bank pressure is low, it automatically switches
to the reserve bank. After a period of time, the
system looks back at the depleted source to
sense if it has rebuilt pressure. If it has, the
system switches back and continues to draw
product from this source, eliminating false
switchovers and reducing residual return.
The Electronic Economizer has selectable
settings for 230, 350 & 500 PSIG liquid
cylinders. The IntelliSwitch continuously
monitors the pressure in the reserve bank.
When the pressure goes above the Economizer
setting, the IntelliSwitch will draw gas from the
headspace of the reserve bank, preventing
vent losses.