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Introduction
Section 1: Introduction
1.1
System Description
The Model 675 is specifically designed for slurry and highly viscous
applications where clogging of the sensor area is common. The Model
675 uses a 3.5" flush diaphragm to prevent unwanted clogging of the
sensing area. This submersible level device is made of 316 SS which offers
outstanding environmental protection and is available in depths up to
138 feet of water.
The non-fouling flush diaphragm is designed to eliminate unwanted
buildup of debris, fats, oils, greases, and other bio-solids by removing
any potential gaps on the measurement area. The high integrity seal's
heavy construction eliminates the effects of turbulence on the sensor.
The 675 Series Transmitters indicate the level of liquid by continuously
measuring hydrostatic pressure via its sensing element, an ion implanted
silicon semiconductor chip with integral Wheatstone Bridge circuit. Once
the sensor measures the pressure, the data is transmitted by a 4 to 20
mA output signal. This design provides for excellent reliability in remote
and inaccessible locations.
The Model 675 is approved for intrinsically safe operation in hazardous
locations as designated by Class I, Div 1, Groups A, B, C & D and Class
II, Groups E, F & G. when connected per Ametek drawing BK750535.
All Model 675 transmitters are equipped with a sealed cable termination
area and moisture absorbing desiccant canister. The purpose is to restrict
moisture from entering the transmitter through the cable vent.
Features
• Oversized 4.75" flush diaphragm to prevent clogging
• 0.25% Full Scale Accuracy
• Intrinsically Safe for Class 1 Division 1 Applications
• Custom Pressure Ranges and Cable Lengths
• Extremely rugged 316L SS construction
• Two-wire, 4-20 mA standard output
• Reverse polarity and surge protection
Applications
• Lift Stations
• Sewage Levels
• Slurries
• Storm Runoffs
• Pump Control
1
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