Liquid Level and Temperature Transmitters

AST45PT

AST45PT liquid level sensors with pressure and temperature output signals

The AST45PT is a combined pressure and temperature transmitter for accurate liquid level measurement. For pressures from 0-1 to 100 PSI that require a wide range of media compatibility, the AST45PT submersible series is an excellent solution to monitor level and temperature for indoor and outdoor applications.

Benefits

- High Strength Stainless Steel Construction
- Measure up to 100 PSI
- Low Static and Thermal Errors
- Unparalleled Price and Performance
- Rugged Design
- Survives Harsh Environments
- Compatible with Many Liquids
- EMI/RFI Protection

Applications

- Ground Water Level Measurement
- Earthen & Concrete Dams
- Liquid Tanks
- Gasoline & Diesel Fuel Tanks
- Irrigation
- Waste Water Canals

*For units with loop-powered 4-20mA output, the pressure loop must be powered or the temperature output will not operate.



Similar Products


- AST4500/4510 - Liquid Level Sensor
- AST4520 - Non-Clogging Level Sensor

Sensor Wiring Information

Quick Contact

Performance @ 25°C (77°F)

Accuracy1
< ±0.25% of FS BFSL(pressure)
±2°C TEB(temp)
Overange Protection
2X Rated Pressure
Burst Pressure
5X or 1,250 PSI (whichever is less)
Pressure Cycles
> 50 Million

1 Accuracy includes: Non-linearity, Hysteresis and 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)
Temp. Comp. Zero
<±1.0% of FS
Temp. Comp. Span
<±1.0% of FS
Other
Shock
EN 60068-2-27
Vibration
EN 60068-2-6, 60068-2-64,
and IEC 68-2-32
EMI/RFI Protection
Yes
Rating
IP-68

 

Electrical Data

Output
4-20mA*
1-5V
Excitation
10-28VDC
10-28VDC
Current Consumption
-
< 10mA
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
Yes
Yes
Sampling Rate
400Hz
400Hz

Ordering Information

AST45PT
1
L
00005
P
4
X
1
N
065
Gage PSIG Pressure Measurement Code
0-100 00100
0-50 00050
0-30 00030
0-20 00020
0-15 00015
0-10 00010
0-7.5 00208*
0-5 00005
0-2.5 00069*
0-1 00001

*2.5 and 7.5 PSI Sensor must be ordered in inches of H2O.

Series Type                  
Temperature Output
1= -40 to 85°C (-40 to 185°F)
2= -40 to 125°C (-40 to 257°F)
3= 0 to 70°C (32 to 158°F)
4= -55 to 125°C (-67 to 250°F)
5= -18 to 93°C (0-200°F)
               
Process Connection
L= Cone (removable)
             
Pressure Measurement Code
Insert 5-digit pressure range code
           
Pressure Unit
H= Inches H2O P= PSI
         
Outputs
4= 4-20mA
3= 1-5V
       
Electrical
N= Conduit fitting, Cable 6 ft. (1.8m)
P= Conduit fitting, Cable 10 ft. (3m)
X= Optional Length (see options)
     
Wetted Material
1= 316L / 304 / Hytrel (cable) / Kynar (cord grip)
   
Fail Condition
N= Not Specified H= Fail High L= Fail Low
 
Options Cable Lengths:
140=15 ft (4.6m) 004=35 ft (10.7m) 003=100 ft (30.5m)
075=20 ft (6.1m) 130=40 ft (12.2m) 050=150 ft (45.7m)
074=25 ft (7.6m) 065 =50 ft (15.2m)  
AST45PT Wiring
Output Red Black White Green
4-20mA +Pressure -Pressure -Temperature +Temperature

Quick Contact

In less than a minute, you can contact AST with your requirements....

(Create your model number from the ordering chart above)

*AST has over 2,000 pressure sensors and transducers it can ship from stock for orders received by noon, EST. Submit your configuration and AST can offer the best solution available or browse our stock list online.

Warranty

AST warrants that units shipped will be free from defects in material and workmanship for a period of one (1) year from date of shipment.
For complete warranty information visit: http://www.astsensors.com/warranty.php

pdf icon
Datasheet
w/ Dimensions

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American Sensor Technologies, Inc.
450 Clark Drive
Mount Olive, NJ 07828 USA
(973) 448-1901
info@astsensors.com

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Pressure Transducers / Transmitters / Sensors for Gauge, Absolute and Differential Pressure Measurement