Concoa 637 Series Handbuch - Seite 3

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DESCRIPTION OF PRODUCT

The 637 Series AutoSwitch is an automatic switchover system designed to provide a continuous

supply of industrial gas. This unit may be configured with or without the connections to connect to

both high pressure and liquid cylinders. The primary bank (left side) of the AutoSwitch system is

configured for use with liquid cylinders (pressure up to 600 PSI). The reserve bank (right side) is

configured for high pressure cylinders filled up to 3000 PSI (207 bar). The standard AutoSwitch

system will maintain a regulated line pressure within the values shown in the table below:

The continuous working inlet pressure on the primary bank (liquid cylinder) must be above 270 PSI

for the system to operate properly. When the primary bank falls below this value, gas will be pulled

from the reserve side.

The 637 Series is designed to be used in conjunction with CONCOA's Altos 2 Remote Alarm *. It

cannot be connected directly to AC line voltage. In addition to a Power Indicator light, 637 Series

AutoSwitches are equipped with LED status lights to indicate the condition of the gas cylinders. A

green indicator light signifies a "Normal" condition while a red light indicates an "Alarm" (gas cylinder

empty) condition. The 637 Series AutoSwitch systems also include a strain relief on the bottom

through which wiring can be connected to an internal circuit board and to a remote alarm such as

CONCOA's Altos 2 *.

MODEL

637 2XXX

637 3XXX

637 7XXX

RANGE

0-40 PSI (0-2.8 BAR)

0-100 PSI (0-7 BAR)

0-150 PSI (0-10.5 BAR)

Figure 1