SFC SC Flow Proportional Controller

Summary

Product Identification

Wallace & Tiernan® SFC SC Flow Proportional Controller

Key Benefits

• Easy to operate with intuitive menu navigation and diagnostics
• Multiple correction values for linearization of dosing feedback
• Graphical display of parameters and process variables
• User-selectable units for flow and dosing
• Galvanically isolated inputs and outputs

Features

• Determines control signal for positioner/dosing pump from control variable and dosing factor
• Accurate positioner setting using feedback signal
• Automatic correction for gas feeder nonlinearity
• Wide dosage range: 10 – 400 %
• Electronic override
• mA or relay output control signals
• Security access

Operating Limits

General

• Ambient temperature: 0 – 50 °C (32 – 122 °F)
• Dosage factor adjustable from 10 – 400 %
• Flow scaling factor is freely selectable

Power Supply

• 24 V DC or 100 – 240 V AC, 50/60 Hz

SFC Electronic Module

Display

• Back-lit LCD display, resolution 128 x 64 pixels

Measurement Input

• 0/4 – 20 mA, 47 Ω impedance, isolated

Feedback Input

• 0/4 – 20 mA or 0 – 1 V or 1 kΩ, 5 kΩ potentiometer linearization over a maximum of 11 correction values

Digital Inputs

• 2 x inputs for voltage-free contact (< 100 Ω)
• Power supply via SFC SC (12 V)

Switching Relay Outputs

• 2 x controller outputs
• Switching values: 5 A, 250 V AC, 1250 VA max; 5 A, 220 V DC, 150 W max
• L/CSA-rating: 5 A, 1/6 HP 125, 250 V AC; 5 A, 30 V DC, 30 W max; 1 A, 30 V DC – 0.24 A, 125 V DC

Analog Output

• 0/4 – 20 mA
• Load protected ≤ 500 Ω
• Accuracy < 0.5 % FS
• Galvanically isolated up to 50 V relative to earth

Interface

• RS 232 for firmware updates

Mechanical / Hydraulic

Enclosure

• IP 66, designed to meet NEMA 4X

Installation Options

• Wall-mounted
• Equipment-mounted (e.g. V10k, V2000)
• Panel-mounted in a control enclosure

Dimensions (W x H x D)

• 185 x 265 x 145 mm (7.3 x 10.4 x 5.7 in)

Weight (incl. packaging)

• approx. 2.5 kg (5.5 lbs)

Testing and Marking

• CE, EMC-EN 61326
• IEC EN 61010
• UL listed/CSA certified

Typical Applications

• Potable water treatment
• Waste water treatment
• Cooling water circuits
• Industrial and process water treatment
• Swimming pools

Disclaimer This extracted summary may be incomplete and may omit figures, footnotes, or revisions. Contractual data must be confirmed against the official OEM PDF revision used for the specific project.

Official datasheet (PDF)

Lenntech datasheet mirror