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The IGC100 is a high-accuracy vacuum gauge controller that offers
pressure measurement and process automation never before available
in a single instrument. It measures pressure from Bayard-Alpert
ionization gauges, convection-enhanced Pirani
gauges, and capacitance manometers providing uninterrupted pressure
readings from 1000 Torr to UHV.
The IGC100 has a touchscreen display that can present data in a
variety of formats including pressure versus time curves. There
are built-in relays for process control, and several multipurpose
input/output ports. The IGC100 is also fully web-ready. Now you
can monitor and control your vacuum system from the lab, your home,
or anywhere in the world.
Accurate Measurements
The IGC100 is designed to be a highly accurate, stable controller.
Its low noise, autoranging electrometer delivers high accuracy pressure
readings into the UHV range. A low-noise, direct current (DC) supply
powers the filament and establishes the emission current. The IGC100’s
precision electronics eliminate controller-to-controller variations
and the measurement uncertainties (up to 15 %) associated with traditional
instruments.
Graphical Touchscreen Display
The IGC100 has a large, back-lit LCD touchscreen display—new
to vacuum gauge controllers. The instrument shows large numeric
readings from each gauge (easily read from across the room), and
can also display readings in bar graph or trend format. The screen
is updated twice a second and results are presented in units of
Torr, mbar, bar, Pa or microns. The IGC100 also displays pressure
versus time curves (chart recordings), allowing you to follow pump
down and venting cycles and to keep track of your vacuum system’s
performance.
IGC100 data is continuously logged into memory. There is a real-time
clock with date for precise time stamps. In addition to pressure
readings, you can log the ADC voltages and relay activity. Data
can be viewed on the IGC100 or downloaded to your computer for further
analysis.
Fully Web-Ready
The IGC100 has an optional Ethernet interface with embedded web-server
hardware that makes your controller fully web-ready. All you need
is an internet connection and you can monitor and control your vacuum
system from anywhere in the world. Just log on to the internet and
enter the IP address of your controller—it’s really that
simple! For a live demonstration click
here.
Useful I/O Ports
The IGC100 has four auxiliary analog input/output ports. When configured
as inputs, the ports can be monitored on the front panel or read
through the GPIB, RS-232 or web interfaces, and can be used for
a variety of applications. For instance, they might be used to monitor
the pressure of a capacitance manometer, measure pump speed, record
temperature from a turbo pump controller, or monitor a mass flow
controller.
The ports can also be configured as analog outputs with a voltage
range of ±12 VDC, and can be used to send control voltages
to other devices.
Powerful Process Control
The IGC100 does more than simply measure pressure. It can also
be an eight channel process controller. There are eight relays,
with corresponding TTL outputs, that can be used to control your
vacuum system. They can be set by gauge pressure, status conditions
(gauge on/off, filament on/off, etc.), the system clock, the analog
I/O ports, or TTL input signals. The relays and TTL outputs can
also be manually controlled from the front panel, and the status
of all eight channels can be displayed.
Additionally, there are twelve dedicated TTL inputs for triggering
functions like gauge on/off, filament on/off, degas, ion gauge lockout,
etc. All process control events are time stamped and recorded in
memory, and can be viewed at any time. User-programmable audible
alarms and text messages can provide advance warning of potential
problems.
Gauge Auto-Start
The IGC100 can be set to automatically turn on an
ion gauge once a Pirani gauge has reached a preset pressure level.
If a UHV Pirani gauge is used in the same high-vacuum chamber as
the ion gauge, you can make uninterrupted pressure measurements
from atmosphere to UHV. In the event of overpressure, the IGC100’s
built-in filament protection algorithm, with user-programmable set
point, immediately turns off your gauge filament.
Easy Operation
Despite its many features, the IGC100 is easy to use. The menu
based interface is intuitive, and parameter entry is quick and simple.
And of course, there is interactive help for all functions of the
instrument. There are dedicated front-panel buttons for filament
emission, degas, and filament auto-start, and LEDs indicate their
status. The IGC100 is compatible with virtually all Bayard-Alpert
ion gauges including glass tubulated, nude, nude-UHV, STABIL_ION®,
and MICRO_ION®. You can select
from a variety of standard gauge configurations or program your
own.
You can also assign a location name to each gauge, which is then
displayed on the front panel of the unit. No more messy, confusing
stickers on the face of your instrument. There are no DIP switches,
trim pots or thumbwheel adjustments in the IGC100—you’ll
never need to open the box.
A sensor on/off function has been added so you can shut down your
Pirani gauges in the presence of flammable gases without having
to physically disconnect them from the controller.
Password protection is provided to keep casual users from accidentally
altering important parameters.
A high-level command set, along with an RS-232 and optional GPIB
interface, allows you to fully control the IGC100 from your computer.
SRS Gauges
SRS supplies a wide range of hot-cathode ionization gauges. These
include tubulated and nude designs with a variety of mounting options,
and a choice of tungsten (W) or thoriated-iridium (ThO2/Ir)
filaments.
We also offer a convection-enhanced Pirani gauge (PG105U). PG105U
gauges offer a measurement range that extends from 1000 Torr to
10-4 Torr. With
its all-metal seal, the PG105U is the only convection-enhanced Pirani
gauge that can be operated directly in UHV environments, and baked
to 250 °C without any disassembly. The PG105U is calibrated
for N2, Ar and air. The IGC100
controller is also compatible with CONVECTRON®
and HPS™ Series 317 convection-enhanced
Pirani gauges.
NIST Traceable Ion Gauge Calibration
SRS offers affordable NIST traceable calibration on all our Bayard-Alpert
ion gauges. Calibrated gauges come with a memory card which contains
calibration data specific to the gauge. A 6 % accurate calibration,
and a high-precision 3 % accuracy calibration are available at very
reasonable prices. Data is uploaded to the IGC100 via the front-panel
memory card reader. The IGC100 can also be used with uncalibrated
gauges. However, many applications greatly benefit from the reproducibility
and accuracy of calibrated gauges.
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