Sigma Controls, Inc.
217 S. 5th St. Perkasie, Pa 18944
phone 215.257.3412 - fax 215.257.3416

Sigma Controls

Model 6100

Overview: Loop Powered. 4-20ma Output: Stainless Steel construction. Applications: wastewater, industrial, municipal, and ocean water pressure and/or depth measurements.
Description

Series 6100 Level Sensor System

Standard Features:

  • Continuous Output
  • Non Fouling Large Diaphragm Design
  • For Sludge & Sewage Applications
  • 316SS Construction
  • Teflon, 316SS, Viton Diaphragms
  • Two Wire 4-20MA or Optional 1-5VDC Output
  • Ranges to 70 Feet Water Plus
  • No Dessicants or Breather Tubes
  • Calibrateable & Rebuildable
  • Stand Off Option

Construction

The Series 6100 Level Sensor System is composed of a lower assembly sensor, submersible cable and a meter/controller. The lower assembly sensor has a 316SS body, a 2 ½ inch diameter Viton* convoluted diaphragm and a isolated solid state piezo-resistive pressure transducer which provides 4-20MA or optional 1-5VDC 3-wire output and excellent linearity, repeatability and low hysteresis. The submersible cable is 20-gauge direct burial polyurethane jacket shielded cable available in unspliced lengths to 1000 feet.

Mounted in a fixed submerged position, the Series 6100 sensor measures the head pressure imposed on the diaphragm by the liquid height above. Calibrated to the specific gravity of the process fluid, the sensor operates reliably in still and wastewater wet wells as well as sludge and process sumps, tanks and reservoirs. The 6100 sensor is an excellent choice for measuring levels of dense sludges since it provides reliable data without the complexity and clogging often associated with other types of systems.

The straight-forward design and construction of the 6100 sensor recommends it for use in water, wastewater and process applications whenever an analog signal is required for pump control, indication, alarm of telemetry applications.

Mounting & Process Media Requirements

The 6100 sensor can be either pipe-mounted (1/2 inch NPT) or cable-suspended (by others) in a vertical position in the reservoir or well to be monitored. The process media can be any type compatible with the sensor and cable materials (316SS, Teflon*, Viton*, polyurethane).

Solid State Pressure Sensor

The sensing element of the solid state pressure sensor consists of four nearly identical piezo-resistors buried in the surface of a thin circular silicon diaphragm. Gold pads attached to the silicon chip surface provide connection to the piezo-resistors and serve as pads for bonding of the wire leads. A pressure causes the thin diaphragm to flex, inducing a stress or strain in the diaphragm and also in the buried resistors. Therefore, a change in pressure (mechanical input) is converted to a change in resistance electric output). The sensing element converts (transduces) one form of energy to another. Teflon & 316SS diaphragms are available. Teflon and Viton are products of E. I. DuPont.

Ordering Info

TO ORDER MODEL 6100 SUBMERSIBLE PRESSURE SENSORS, SPECIFY MODEL NUMBER AND SPECIFIC CODES CORRESPONDING TO THE REQUIREMENTS:

EXAMPLE:  6100MP-015-1-DS-CD-50

Unless otherwise specified, Sensors are supplied with Viton diaphragms.           

RANGES
           002          0/2 PSIG            0-5   FT H20    
           005          0/5 PSIG            0-12 FT H20    BASE
           007          0/7 PSIG            0-16 FT H20    BASE
           015          0/15 PSIG          0-35 FT H20    BASE
           030          0/30 PSIG          0-70 FT H20    BASE
           050          0/50 PSIG          0-115 FT H20  BASE

INPUT/OUTPUT
1    4/20MA
2    4/20MA and MODBUS    

FILL LIQUID
           DS        SILICON 200 FILL LIQUID    

OPTIONS
           SB          SUPPORT BRACKET
           PB           PIPE CABLE SUPPORT BRACKET
           WB          WALL MOUNT PIPE SUPPORTS (PAIR)
           CD          CONDUIT ADAPTER
           DC          TVSS 4/20MA SURGE PROTECTION DIN MT
           WC         STAINLESS STEEL SUPPORT CABLE*     
                          *Please Specify.
           SO           STAND-OFF OPTION      

CABLE LENGTH DESIGNATION
           WATERPROOF 20 GA. POLYURETHANE JACKET SHIELDED  

Teflon & Viton are products of E. I. DuPont & Co.

 
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