The Unit Vs Multigauge And Sentorr Backwards Compatibility Detail; Backwards Compatible Features; Non-Backwards Compatible Features - Varian XGS-600 Instruction Manual

XGS-600 vs MultiGauge and SenTorr Backwards Compatibility
Detail
XGS-600 replaces both MultiGauge and SenTorr rack mount controllers. While the
XGS-600 was designed to be substantially backwards compatible, there are some design
features that prevent the new product from being 100% backwards compatible.

Backwards Compatible Features

There are three board options, they are:
❑
Hot Filament Ion Gauge Board (HFIG)
❑
Inverted Magnetron Board (IMG)
❑
Two channel Convection Board (CONV)
The Hot Filament board replaces both the UHV and BA MultiGauge boards and implements
the SenTorr BA and UHV models. You select the type of sensor being employed and
software takes care of the settings. The ion gauge cable connectors are identical to the
older products.
The Inverted Magnetron board employs the same SHV connector as MultiGauge and
operates both of the IMG100 and the IMG300 (UHV-IMG) as does the current MultiGauge
board.
The Two Channel Convection board has the same gauge cable connectors as the current
MultiGauge Convection card, and the SenTorr xxTC and xx2C models. MultiGauge uses
the Dsub connector for the analog output, as well as for the sensor connections, and this is
supported in XGS-600.
The RS232 serial communications connector and protocol is supported in XGS-600, as
well. However, the RS485 connection is now housed in the same Dsub-9 connector as for
the RS232, and is not backwards compatible with the MultiGauge and SenTorr Mini-DIN
connectors.

Non-Backwards Compatible Features

The significant changes with the XGS-600 vs MultiGauge and SenTorr are the following:
❑
XGS-600 does not have a 4 channel TC card (MG)
❑
The analog outputs are housed in a firewire type connector (as mentioned above, the
two channel Convection board has its analog outputs in the Dsub's as well)
❑
Remote I/O signals are also housed in the same fire-wire connector. There is no I/O
board option as in MultiGauge
❑
The standard non-isolated open-collector set-point outputs are housed in a
9-position Dsub connector and only provide C and NC contacts. MultiGauge and
A-8
XGS-600 Gauge Controller