AST AST20PT Datasheet - Manual

TM
American Sensor Technologies
•
450 Clark Dr., Mt. Olive, NJ 07828
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phone (973) 448-1901
•
fax (973) 448-1905
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email: [email protected]
Environmental Data
Operating Ambient Temperature -40 to 85°C (-40 to 185°F)
Operating Media Temperature -55 to 125°C (-67 to 257°F)
Storage Temperature -50 to 125°C (-58 to 257°F)
Thermal Limits
Compensated Range
0-70°C (32 to 158°F)
TC Zero < ± 0.5% FS
TC Span < ± 0.5% FS
Other
Shock
100G, 11msec, 1/2 sine
Vibration 10G peak, 20 to 2000Hz
EMI/RFI Protection: Yes
Rating: IP-66
Electrical Data
Output 4-20mA + 0-5V, 1-5V 0-10V, 1-10V 0.5-4.5V Ratiometric
Excitation 10-28VDC 10-28VDC 15-30VDC 5VDC, Regulated
Current Consumption: - < 10mA < 10mA < 10mA
Sampling Rate 400Hz 400Hz 400Hz 400Hz
Output Noise: < 1mV, RMS < 1mV, RMS < 1mV, RMS < 1mV, RMS
Zero Offset < ± 0.5% FS < ± 0.5% FS < ± 0.5% FS < ± 0.5% FS
Span Tolerance < ± 0.5% FS < ± 0.5% FS < ± 0.5% FS < ± 0.5% FS
Output Load: 0-800 Ohms@10-28VDC 5k Ohms, min. 5k Ohms, min. 5k Ohms, min.
Reverse Polarity Protection Yes Yes Yes Yes
Applications
ƒ Aerospace
ƒ Analytical Instruments
ƒ Hydraulics
ƒ Hydrogen (Consult factory
for media compatibility)
ƒ Labs / Metrology
ƒ Medical
ƒ Military
ƒ Test Stands
Benefits
ƒ ASIC Compensation
ƒ Superb Temperature Performance
ƒ Real Time Thermal Compensation
ƒ Real Time Linearity Correction
ƒ Turndown Capability
The AST20PT is a digitally compensated pressure and temperature dual
output transmitter, offering measurments from a single process point,
reducing process penetration points and leaks. Krystal Bond™ Technology
alone offers excellent non-linearity and non-repeatability performance. When
it is combined with the ASIC, the AST20PT steps into its own league of high
performance pressure sensing at an affordable price.
AST20PT
Precision Pressure & Temperature Transmitter
Performance @ 25°C (77°F)
Accuracy* < ±0.1% BFSL (<±0.2% BFSL over 15,000 PSI)
Stability (1 year) ±0.1% FS, typical
Proof Pressure ** 2X Rated Pressure, standard
Burst Pressure 5X or 50,000 PSI, whichever is less
Pressure Cycles > 100 Million
* Accuracy includes non-linearity, hysteresis & non-repeatability **For higher proof pressures, contact factory
+ For units with loop-powered 4-20mA output, the pressure loop must be powered or the temperature output will not operate.
PRESSURE & TEMPERATURE