Regal Chlorinators – 7009 – Smartvalve, Residual/Compound Loop Control, 500 PPD

The Regal Chlorinators 7009 Smartvalve, Residual/Compound Loop Control, 500 PPD is an advanced model that automatically regulates the gas feed rate needed to maintain the chemical residual level determined for a specific water treatment application. It can be configured to be used in multiple control schemes. This model can be used for standard flow proportional control, but is better suited for more complex chlorination and dechlorination applications, such as:

RESIDUAL ONLY Control -Applies when the water flow rate is constant but the quality varies. The SMARTVALVE continuously receives 4-20mA signals from a downstream chlorine residual analyzer and responds by adjusting the gas feed rate accordingly.

COMPOUND LOOP Control – Applies when both the water flow rate and quality continuously varies. Under these conditions, the SMARTVALVE point of application is located between a water flow meter (upstream) and a chlorine residual analyzer (downstream). Both devices continuously feed 4-20mA signals to the SMARTVALVE which converts the signals and
adjusts the gas feed rate accordingly.

FEED FORWARD DECHLORINATION Control – Operates similarly to Compound Loop Control but requires two SMARTVALVES, one for chlorination (CL2) and one for de-chlorination (SO2).The first SMARTVALVE (chlorine) is located upstream from the residual analyzer and the second (sulfur dioxide) is located downstream. The water flow and residual signals are simultaneously fed to both valves which adjust the gas feed rates proportionally for each point of application.

Features:
Capacities: 10, 25, 50, 100, 250 & 500 PPD (200, 500g/hr & 1, 2, 5, 10 kg/hr)
Power Requirements: Field selectable 115/230 VAC ± 15%, single phase
Fusing: 1/4A @ 230V, 1/2A @ 115V
Power Consumption: 45 Watts absolute max
Input Signals: 4-20 milliamps DC (unpowered)
Input Impedance: 250 Ohms
Output Signals: 4-20 milliamps DC, 12 Volt compliance (600 Ohms) isolated and powered
Micro-Controller: MC9S12 with 128kB FEEPROM, 2kB EEPROM, 8kB SRAM, 16 bit
Display: 20-character, 2-line, LCD
Decimal Point Setting: 0, 0.0, 0.00
Operator Interface: Four (4) button keypad integrated into overlay
Relays: Three (3) each, 10A, 250 VAC
Calibration Accuracy: ±0.25% from zero
Speed of Response Variable and field adjustable: Between 0.5 & 10.0 seconds per revolution of motor
Control Modes: Automatic, electric manual and manual
Operating Range: 10:1
Dosage Ratio: 4:1, keypad adjustable
Environmental Limits: 32° to 120° F (0-50° C)
Monitor Enclosure: Wall Mounted Polycarbonate or ABS NEMA 4X (7.87″ X 7.87″ X 5.25″)
Serial Communications: OPTIONAL Isolated RS232, RS422 and RS485 (2/4-wire) module
Step Rate Inputs: Active, designed for 100 ft., 20 AWG minimum. Remote contact closure with a voltage drop of no more than 0.8 volts at the valve terminals. Less than 5 mA flows through the contact.
Stepper Motor: Unipolar (5/6-Wire), 12 Volt, 1 Amp winding size 23
Gain Setting: 0.1 to 500
Lag Time Setting: 1 to 7200 seconds
Residual Full Scale Setting: 0.1 to 100 PPM