Sumitomo FA-20L - Compressor Control; Front Panel Connections; Front Panel Mounted Items; Environmental Requirements

Specifications
14
Compressor Control
 ON and OFF switch with run light for local operation of compressor and cold head.
 Remote Start/Stop capability (using optional accessory cable, P/N 280368B20).
 Automatic restart upon restoration of power after power interruption.
 Automatic shutoff for the following system faults. Operator correction is required before
restart.
 High helium gas discharge temperature [TSG] when > 93° C (200° F)
 High compressor motor windings temperature.
FA-20L P/N Switch Opens Switch Resets
280504D18N 145° C
(293° F)
69-87° C
(156
-
189° F)
280504D27N 120° C
(248° F)
52-70° C
(126
-
158° F)
 Open control circuit/valve motor fuse(s)
Front Panel Connections (See Figure 2.)
 Helium gas connections: size 8, male (8M) couplings, high-pressure supply (red) and
low-pressure return (green).
 Helium fill port: size 4, male (4M) coupling.
 Cold head receptacle: Amp CPC 17-28 socket
 Mains power receptacle: Heavy Duty Power Connector, HAN E 10, Harting
09330102602
 Accessory receptacle: Amp CPC 11-4 socket
Front Panel Mounted Items (See Figure 2.)
 Supply pressure gauge (0-600 psig, 0-40 bar, 0-4000 kPa)
 Main power circuit breaker (set at 20 A)
 ON/OFF rocker switch with run light
 Fuses
 Elapsed time meter (ETM)
 50/60 Hz Toggle switch (for operation with RDK-101D cold head only)
Environmental Requirements
Operating Storage
Ambient Temperature 4° C to 40° C
(40° F to 104° F)
-20° C to 65° C
(
-
4
° F to
150
° F)
Relative Humidity 20% to 80%
(non
-
condensing)
10% to 90%
(non
-
condensing)
Atmospheric Pressure 70 kPa to 106 kPa 20 kPa to 106 kPa
Magnetic Field Limits
≤
1
50 Gauss
NOTE
Operating the equipment out of specifications may void the warranty.