Unaffected by overpressure repeats within 0.01 % full scale after being exposed to 35
psia
True total pressure reading independent of gas composition
High level DC output 0-10 volts, linear with pressure
Superior zero stability patented design eliminates errors due to temperature and
overpressure effects
Stable zero reference
Alternative for McLeod, Thermocouple
and Pirani Gauges
System versatility compatible with a variety of readouts and controllers
Corrosion Resistant measuring cell constructed of Inconel/Monel for high corrosion
resistance.
Description
The Barocel Model 600 transducer is an advanced design capacitance manometer
which uses patented technology to improve zero stability after temperature
excursions or pressure overloads. An integral vacuum reference, of all-welded
construction, contains gettering material to ensure long-term stability.
In vacuum systems, the Model 600 is the ideal replacement for McLeod, Pirani,
or thermocouple gauges. Since pressure is sensed by electrically measuring
pressure-induced displacement of a thin metal membrane, calibration accuracy
is unaffected by the chemical composition of input media.
Dirty or corrosive gases and radioactive gases such as tritium may be monitored
without affecting accuracy because the electrically active portion of the
sensor is contained in the sealed reference vacuum.
The transducer's analogue output is directly proportional to pressure and
may be recorded by data acquisition systems or displayed using an Edwards
readout/power supply.
Technical
Data
Pressure ranges:
0-10, 0-100, 0-1000 torr 0-10, 0-1000,
0-1000 mbar Ranges to 10,000 torr also available
Overpressure effect:
Repeats within 0.01% full scale after
35 psia exposure
Accuracy:
0.15% of reading standard, 0.5% of
reading also available
Material exposed
to pressure media:
Inconel and Monel
Resolution:
Better then 1:104
Internal volume:
8.3 cm3 including 1/2”
dia. tube
Operating temperature:
0 to 65°C
Time constant:
8 msec
Temperature effect
on zero:
Less than 0.005% full scale /°C
Output signal:
0-10 VDC, linear with pressure
Temperature effect
on sensitivity:
Less than 0.02% reading /°C
Power requirements:
15 VDC ±5% regulated to
± l % at 30mA
Overpressure without
damage:
1.25 times full scale range or 35
psia, whichever is greater
RFI suppression:
Standard on all models
Weight:
1.5 lb (0.7 kg)
Displays
and Controllers for use with the model 600
