MODEL
552
PRESSURE/LEVEL
TRANSMITTER
WITH MODULAR ELECTRONICS
Download the
Delta Controls Model 552 Detailed Datasheet 
Note: You will need the Acrobat Reader to view the data sheet. 
Features
- General Purpose Pressure/Level
Service
- Separate Electronics
Module And Sensor
- Heavy Duty Rugged Body
- Measures Liquid Level
In Pressurized Tanks
- Electronics Module is
Sealed in Potting; Can Be Remoted
- Ranges From 12 Inches
Water To 1000 PSI (0.3 to 70 Bar)
- Zero & Span Pots
For Field Recalibration
- Spark & Voltage Surge
Protection
- Optional Selectable Dampening
- Optional LCD Display
(in Engineering Units)
- Optional Integral Power
Supply Module
- Optional Integral Alarm
Module(s)
- Maintenance Free Operation
Description
The Delta
Controls Model 552 Pressure Transmitter consists of a potted electronic
module and a modular pressure sensor assembly packaged as an integral unit.
The sensor includes an oil filled 316-L S.S. or platinum diaphragm which isolates
the strain gage bridge from the process liquid or gas. The back of the sensor
is usually vented to atmosphere to compensate for barometric pressure changes.
The electronics module is potted in a dual system of silicon rubber and epoxy
to protect against moisture, corrosion, and vibration.
The Delta Controls Model
552 is commonly used as a liquid level transmitter in tanks. The pressure at
the bottom of a vented tank containing a liquid is linearly proportional to
the height and density of the liquid. The "TPC" gas space pressure
corrector option is required for pressurized tanks.
Specifications
- Technology:
Silicon Strain gage.
- Supply Power:
13 to 35 VDC 2 Wire Loop Powered.
- Output:
4-20 mADC, Isolated, Intrinsically Safe
- Loop Impedance:
550 ohms at 24 VDC. 1100 ohms at 35 VDC, maximum
- Adjustments:
Span from 30% to 100% of sensor range. Zero to 30% basic and to 80% optionally,
non-interactive.
- Over Pressure:
2X Range (35 PSI / 2.5 Bar min) without damage; 3X Range (1000 PSI / 70 Bar
min) without rupture minimum
- Temperature
Range:
- -20 to +220°F (-30
to 105°C) Process
- -20 to +185°F (-30
to +85°C) Electronics
- 30 to +130°F (-1
to +55°C) Compensated (Higher available)
- Accuracy:
± 0.25% F.S. Or better
- Thermal Error:
± 0.02% F.S./ ° F Maximum
- Barometric Effect:
None
Optional
Features
- Dampening:
Selectable 0.1 to 22 seconds
- Indicator:
Large LCD display (in Engineering Units)
- DC Power Supply*:
Integral VAC to 24 VDC.
- Alarm Module(s)*:
Integral 5 amp SPDT.
- TPC Corrector:
Used When Measuring Level In Pressurized Tanks
* Not third party listed
Third Party
Approvals
- CSA (Canada)
- NRTL/C (USA)
- Intrinsically Safe
- Explosion Proof
- Environment Proof
- ISO 9001 Quality System
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Controls Home Page
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Controls Pressure Transmitter Page
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