IWAKI ERC-6210

Description

Technical Specifications

• Operating Supply Voltage: 100–240 VAC 50/60 Hz universal input
• Output Drive Signal: Pulse frequency modulation signal for electromagnetic metering pump solenoid
• Analog Input Signals: 4–20 mA current signal, 0–10 VDC voltage signal dual input channels
• Digital Trigger Input: Contact closure external batch dosing trigger input
• Alarm Output Relay: Single SPST relay contact, 3 A / 250 VAC rating
• Pulse Output Frequency Adjustment Range: 0 – 360 strokes per minute continuous variable
• Operating Temperature Range: 0 °C to +50 °C
• Protection Class: IP65 front panel, IP30 internal control housing

Functional Features

1. Dual-channel analog signal proportional dosing control synchronized with process sensor readings
2. Adjustable stroke frequency and stroke length dual parameter flow calibration
3. Batch dosing timer function with configurable preset chemical injection volume cycles
4. Built-in pump dry-run detection signal input to stop dosing upon chemical tank empty state
5. Digital LCD display showing real-time stroke rate, dosing total volume and fault error codes
6. Latched alarm relay output triggered by dry-run, overvoltage and communication fault conditions
7. Password protected parameter lockout to prevent unauthorized dosing setting modification

Performance Parameters

• Dosing stroke adjustment resolution: 1 stroke per minute incremental step
• Cumulative volume memory retention: 10 years non-volatile flash memory without external power
• Analog input signal resolution: 12-bit digital conversion precision
• Alarm relay response delay: Fixed 2 second hold time for transient fault signal filtering

Material Composition

• Front panel outer casing: UV-stabilized ABS plastic with integrated EPDM rubber sealing gasket
• Internal control PCB: FR4 flame retardant circuit board with conformal anti-corrosion coating
• LCD display window: Scratch-resistant polycarbonate transparent sheet
• Terminal connectors: Nickel-plated copper screw terminals housed in PA66 flame retardant plastic blocks

Structural Characteristics

• Wall-mount compact rectangular housing, dimensions 142 mm (W) × 180 mm (H) × 65 mm (D)
• Single front panel sealed access cover for parameter adjustment buttons and LCD screen
• Separate rear wiring compartment with cable gland ports for power, signal and pump drive wiring
• Integrated wall mounting flange brackets molded into rear housing structure

Working Principle

Universal AC supply voltage is converted to isolated regulated DC logic power for the on-board microcontroller. 4–20 mA / 0–10 V analog process signals are digitized via 12-bit ADC circuits; microprocessor calculates corresponding pump stroke frequency to maintain target chemical dosing ratio. Pulse modulated drive signals are transmitted to connected Iwaki electromagnetic metering pump solenoid to control injection volume. Dry-run sensor contact input interrupts pulse output upon chemical supply loss and energizes alarm relay, latching fault code display on LCD until manual reset. All cumulative dosing volume data is continuously written to non-volatile flash memory for permanent record storage.

Advantage Highlights

1. IP65 sealed front panel enables direct installation inside chemical treatment plant wet processing areas
2. Dual analog input channels support dual independent process feedback dosing control logic
3. Conformal coated internal PCB resists corrosive chemical vapor airborne contamination
4. Universal 100–240 VAC supply eliminates region-specific power supply adapter requirements
5. Password parameter lock prevents accidental dosing setpoint alteration by untrained personnel
6. Native direct drive compatibility with full range of Iwaki electromagnetic metering pumps without signal converters

Applicable Industries

Water and wastewater treatment plants, swimming pool chemical disinfection systems, industrial cooling tower biocide dosing, plating metal surface treatment, chemical manufacturing blending processes, aquaculture water conditioning, boiler water treatment scale inhibitor injection

Installation Requirements

1. Mount vertical on solid non-corrosive wall surface with minimum 100 mm clearance above and below unit
2. Install cable glands on all rear wiring ports to maintain IP65 environmental protection rating
3. Separate high-voltage pump drive wiring and low-level analog sensor signal wiring via separate cable routing channels
4. Locate unit minimum 1.5 m horizontal distance from concentrated chemical acid/alkaline storage tanks
5. Connect dedicated grounded AC power circuit to avoid voltage interference from high-power industrial machinery

Operation Precautions

1. Wipe front panel sealing gasket regularly to prevent chemical residue buildup breaking environmental seal integrity
2. Calibrate analog input signal dosing proportionality every 90 days of continuous operational use
3. Do not expose unit housing to direct continuous spray of liquid chemical solutions
4. Clear cumulative dosing volume log only after completing official process operational reporting records
5. Disconnect main AC supply before opening rear wiring compartment access cover
6. Replace LCD display unit immediately if screen suffers chemical fogging from gasket seal degradation