Submersible Level Sensors | Intrinsically Safe

AST4500/AST4510

Intrinsically Safe Submersible Level Sensor - AST4500/4510

 

The AST4500 and AST4510 submersible level sensors are approved to Class I Div 1, Groups C and D for use in intrinsically safe areas with an approved barrier. From 0-1 to 0-100 PSI pressure / level measurement, this submersible pressure transducer is an excellent solution to level monitoring for indoor and outdoor applications.

The AST4500 and AST4510 are completely sealed for submersion, yet vented through the cable to correct for barometric pressure changes. The welded housing is tested in-house via a helium leak tester to ensure proper protection. The conductors of the cable are also isolated from the outside environment to keep the level sensor operational for long-term use. Each submersible pressure transducer features a 1/2" conduit fitting at the electrical connection and removable nose cone at the sensor.

Available with voltage or 4-20mA output signals, AST can provide a cost effective submersible pressure transducer for level monitoring for a variety of applications.

UL

CSA

CE

American Bureau of Shipping Type Approval

ATEX

IECEx Certified

Design Benefits

- No Errors with Foam or Reflections
- Unparalleled Price and Performance
- Rugged Design
- Compatible With Various Liquids
- Class 1 Div 1 IS Groups C, D when installed with an approved barrier
- Class I Zone 0 Exia IIB T4 Ga (Ta = -40C to +80C)
- ABS (American Bureau of Shipping) Type Approval

Applications / Industries

- Liquid Tanks / Above Ground Storage Tanks
- Ground Water Level & Depth Measurement
- Gasoline & Diesel Fuel Tanks
- Irrigation System Water Level
- Waste Water Canals
- Bio-Fuels
- Salt Water Holding Tanks
- Fertilizer Tanks

Similar Products


- AST4520 - Non-Clogging Flush Diaphragm Level Sensor
- AST4530 - PVDF Submersible Pressure Transducer
- AST45PT - Liquid Level and Temperature Transmitter

CSA Instrinsically Safe Operating Instructions

Quick Contact

Performance @ 25°C (77°F)

Accuracy1
<±0.25% BFSL
(<±0.5% BFSL for 0-1 PSI)
Stability (1 Year)
±0.25%FS, typ
Proof Pressure
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 80°C (-40 to 176°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 (<±2.5%, typ. for 1PSI)
TC Span
<±1.5% of FS (<±2.5%, typ. for 1PSI)
Other
Shock
EN 60068-2-27
Vibration
EN 60068-2-6, 60068-2-64,
and IEC 68-2-32
EMI/RFI Protection
Yes
Rating
IP68

 

Electrical Data

Output Signal
4-20mA
1-5V
Excitation
10-28VDC, Typ.
10-28VDC, Typ.
Output Impedance
>10k Ohms
<100 Ohms, Nominal
Current Consumption
20mA, Max
5mA, typical
Bandwidth
(-3dB): DC to 250 Hz
(-3dB): DC to 1kHz
Output Noise
<2mV RMS
<2mV RMS
Zero Offset
<±1% of FS
<±4%(1PSI)
<±1% of FS
<±4%(1PSI)
Span Tolerance
<±1.5% of FS
<±4%(1PSI)
<±1.5% of FS
<±4%(1PSI)
Output Load
0-800 Ohms
@10-28VDC
10k Ohms, Min.
Reverse Polarity
Yes
Yes

pdf icon
Datasheet

AST4500/AST4510 Pressure Transducer Ordering Information

AST4510
L
00005
P
4
N
1
000
SS
AST4500
PSIG Pressure Measurement Code Feet of Water Column@4°C (approx.)
0-100 00100 230.67
0-50 00050 115.33
0-30 00030 69.20
0-20 00020 46.13
 
AST4510
PSIG Pressure Measurement Code Feet of Water Column@4°C (approx.)
0-15 00015 34.60
0-10 00010 23.07
0-7.5 00208* 17.30
0-5 00005 11.53
0-2.5 00069* 5.77
0-1 00001 2.31

Typical measurement options. All pressure / level values between 0-1 PSI and 0-100 PSI are available. Please consult factory. *2.5 and 7.5 PSI Sensor must be ordered in inches of H2O.

Series Type               
Process Connection
L= Cone
            
Pressure Range
Insert 5-digit pressure measurement code
          
Pressure Unit
B= Bar H= Inches H2O K= kg/cm2 P= PSI
        
Outputs
3= 1-5V
4= 4-20mA
      
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)
  
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)  
 
Approval
-SS=Add -SS for CSA157 Class I Div 1 Groups C, D Intrinsically Safe and ANSI/ISA 12.27.01 Single Seal Approval and SIRA ATEX Exia IIB Class I, Zone 0, T4
 

Contact AST

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Warranty

AST warrants that submersible level sensors shipped will be free from defects in material and workmanship for a period of one (1) year from date of shipment. If you are returning an AST4500/AST4510 that has been submerged, we require that you advise AST what liquid(s) was/were being measured and confirm to AST in writing and that each product has been cleaned of any potentially hazardous materials.
For complete warranty information visit: http://www.astsensors.com/warranty.php

Pressure Transducers Pressure Sensor Applications Contact AST
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