AST AST45PT Datasheet - Manual

TM
American Sensor Technologies
•
450 Clark Dr., Mt. Olive, NJ 07828
•
phone (973) 448-1901
•
fax (973) 448-1905
•
email: [email protected]
* Accuracy includes non-linearity, hysteresis & non-repeatability
Environmental Data
Temperature
Operating
-40 to 85°C (-40 to 185°F)
Storage -40 to 100°C (-40 to 212°F)
Thermal Limits
Compensated Range 0 to 55°C (32 to 131°F)
TC Zero
<±1.5% of FS
TC Span <±1.5% of FS
Other
Shock
100G, 11 msec, 1/2 sine
Vibration 10G peak, 20 to 2000 Hz.
EMI/RFI Protection: Yes
Rating: IP-68
Performance @ 25°C (77°F)
Accuracy (Pressure)* < ±0.25% of FS BFSL
Accuracy (Temp.)* < ±1.0% of FS BFSL
Over Range Protection 2X Rated Pressure
Burst Pressure 5X or 1,250 PSI (whichever is less)
Pressure Cycles > 50 Million
AST45PT
Applications
Ground Water Level ƒ
Measurement
Earthen & Concrete ƒ Dams
Liquid Tanks ƒ
Irrigation ƒ
Environmental Sites ƒ
Building Automation ƒ
Controls
Waste Water Canals ƒ
Benefits
High Strength Stainless Steel ƒ
Construction
No Internal O-rings ƒ
Wide Operating Temperature ƒ
Pressures up to 100 PSI ƒ
Low Static and Thermal Errors ƒ
Unparalleled Price and Performance ƒ
Rugged Design ƒ
New Conduit Fitting at Electrical ƒ
Connection
Compatible with Wide Variety of Liquids ƒ
EMI/RFI Protection ƒ
The AST45PT is a combined pressure and temperature transmitter for ƒ
accurate liquid level measurement.
For pressure ranges from 0-1 to 100 PSI that require a wide range of ƒ
media compatibility, the AST45PT submersible series is an excellent solution
to monitor level and temperature for indoor and outdoor applications.
PRESSURE & TEMPERATURE
Pressure & Temperature Submersible Transmitter
Electrical Data
Output 4-20mA + 1-5V
Excitation 10-28VDC 10-28VDC
Current Consumption: - < 10mA
Sampling Rate 400Hz 400Hz
Output Noise: < 1mV, RMS < 1mV, RMS
Zero Offset < ± 0.5% FS < ± 0.5% FS
Span Tolerance < ± 0.5% FS < ± 0.5% FS
Output Load: 0-800 Ohms@10-28VDC 5k Ohms, min.
Reverse Polarity Protection Yes Yes
+ For units with loop-powered 4-20mA output, the pressure loop must be powered or the temperature output will not operate.