MKS 20340-341-T1, Инструкция по эксплуатации

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13
Series 340 Vacuum Gauge Controller
Instruction Manual - 340005 - Rev. D
Chapter 2
2
Introduction & Specifications
2.1 General Description
The Series 340 Vacuum Gauge Controller (VGC) measures pressures from less than 1 x 10 -9 Torr
(1.3 x 10
-9
mbar or 1.3 x 10
-7
pascal) to atmosphere by use of a single ionization gauge and two
Convectron ® Gauges. Pressure readout is via a front panel display and analog outputs. Resistance
heating degas is standard. An interlock is provided to allow degas only when the ion gauge tube is
ON and the displayed pressure is below 5 x 10
-5 Torr. Pressure reading during degas is not possible.
The 340 VGC is a modular instrument with infrequently used controls housed behind a hinged front
panel, thus reducing front panel clutter and allowing the VGC to reside in a half-rack space.
2.1.1 Available Options
2.1.1.1 Remote Input/Output
The 340 VGC can be ordered with a factory installed remote I/O option which provides an ion
gauge (IG) status relay, remote gauge on/off input and remote degas on/off input functions.
2.1.1.2 Process Control Relays
The 340 VGC can be ordered with a factory installed process relay option which provides
automatic ion gauge turn-ON from Convectron channel "1" and a Convectron Gauge process relay
output that is user selectable to operate from channel "1" or "2".
2.1.1.3 Ion Gauge Cables
The VGC is capable of operating an ion gauge located up to 50 feet away from the controller by
using standard cables. Degas power delivered to the gauge decreases with cable length. Cables are
available for use with glass or nude Bayard Alpert (B-A) gauges.
2.1.2 Mounting Options
The 340 VGC can be ordered with a variety of mounting options to fit your needs. This includes half
rack (standard), full rack, or bench mounting. See Figure 3-2 on page 20 for dimensional
illustrations.
2.2 Receiving Inspection
Inspect all material received for shipping damage. Confirm that your shipment includes all material
and options ordered. If materials are missing or damaged, the carrier that made the delivery must be
notified within 15 days of delivery in accordance with Interstate Commerce regulations in order to
file a valid claim with the carrier.
2.2.1 Damaged Material
Any damaged material, including all containers and packaging, should be held for carrier
inspection. If your shipment is not correct for reasons other than shipping damage, contact our
Customer Service Department, 6450 Dry Creek Parkway, Longmont, Colorado 80503, phone
+1-303-652-4691, email gp-csr@mksinst.com.