F9
Convection Ionization Gauges
Scientific Instrument Services, Inc.
TM
FAX: 908-806-6631
www.sisweb.com/catalog/08/F9
Features
-
Includes two setpoint, user-selectable analog output, and
RS232/485 interfaces.
-
Analog output is configurable as a non-linear S-curve, log-
linear, or user-scalable linear.
-
Wide measuring range lets you monitor your vacuum system
from 10
-4
to 1000 Torr with a single gauge.
T
he VGC-301 vacuum gauge controller is a convenient and
inexpensive power supply and readout instrument for a
CVG "Worker Bee" convection vacuum gauge. The VGC-
301 is powered by 12-30 VDC, or by its self-contained universal 100-
240VAC supply.
Compatibility:
Signals and relay functions are the same as found on similar convection gauge controllers from other manufacturers.
The VGC-301, CVG gauge, and gauge cable can be directly interchanged with Granville-Phillips 375 Controller, 275 Convectron
®
gauge,
and gauge cable. (Remote interface, relay and power connectors are different.)
InstruTech - VGC-301 Convection Vacuum Gauge Controller
Specifications
Measurement range
1x10
-4
to 1000 torr
1x10
-4
to 1333 mbar
1x10
-2
Pa to 133 kPa
Resolution
1x10
-4
Torr / 1x10
-4
mbar / 1x10
-2
Pa
Display
4 digit LCD, displays 4 digits from100 mTorr
to 1100 Torr, 3 digits from 10.0 to 100
mTorr, and 2 digits from 1.0 to 10 mTorr
Display engineering units
Torr, mbar, or Pa - user selectable
Display update rate
0.5 sec
Weight
250 gm (9.0 oz.)
Housing
1/8-DIN panel-mount enclosure
Temperature - operating
0°C to +40°C
Temperature - storage
-40 to +70°C
Humidity - operating
0 to 95% RH non-condensing
Analog Output (user-selectable)
1) log-linear 1 to 8 Vdc., 1V/decade, or
2a) non-linear analog S-curve 0.375 to
5.659 Vdc, or
2b) linear 0 to 10 Vdc, user scalable
(default is 0-1- VDC = 0-1 Torr)
Digital Interface
RS485/RS232
Input Power
100-240 Vac, 50/60Hz, universal power
supply or 12-30 Vdc
Setpoint relays
two, single-pole double-throw relay (SPTD)
Contact Rating
1A at 30 Vdc resistive, or ac non-inductive
Tripping point range
1x10
-3
to 1000 Torr
Adjustment
a) adjust value b panel pushbutton up/down
keys and display
b) adjust value, direction, and hysteresis by
software/interface
Connector
Gauge: 9-pin D female
Analog output and digital interface: 9-pin
D male
Relay outputs: 6-pin pluggable terminal
block
Power: universal AC and 2-pin pluggable
terminal block
RF/EMI protection
CE compliant
Controls and Connections
InstruTech
Part No.
Description
VGC 301 A Convection
Vacuum Gauge Controller*
InstruTech CVG Gauge Tubes:
1/8"NPT - 1/2" tube
NW16KF
NW25KF
NW40KF
1-1/3" Mini-CF / NW16CF Mini-Conflat
®
2-3/4" CF / NW35CF Conflat
®
1/4" Cajon
®
4VCR female
1/2" Cajon
®
8VCR female
Gauge Cables:
10 ft (3m)
CB421120F
25 ft (8m)
50 ft (15m)
Over 50ft (15 m)
Call for
pricing
*(Includes mating interface connectors, and North American 115VAC power cord & plug. Contact us
for availability of powercords and plugs for other countries.)
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