Product Overview
This document provides operational guidance for the EcoloxTech E-1200 System, designed for generating hypochlorous acid (HOCl).
The system is a white electrical enclosure featuring a control panel with a digital display and operational buttons. It is used for water treatment applications.
Specifications
| Model | E-1200 |
|---|---|
| Power | AC 110/220V 50/60HZ 700W |
| Dimensions | 35 x 24 x H 52 cm (13.8 x 9.5 x 20.5 in) |
| Weight | 21.2 kg (47 lbs.) |
| Production Cell Type | Single cell electrolysis for generating hypochlorous acid (HOCl) |
| Concentration Range | 20 to 400 ppm of free available chlorine (FAC) |
| Ampere Settings | 20 to 65 amp |
| Pump Speed Settings | 0 to 19 (max. speed to min. speed) |
Requirements
| Ambient Temperature | 5 to 50 °C (41 to 122 °F) |
|---|---|
| Feed Water & Brine Temperature | 10 to 30 °C (50 to 86 °F) |
| Feed Water & Brine Water Quality | Hardness < 80 ppm (higher will damage the electrolysis cells) |
| Humidity | Less than 96% Relative Humidity (RH) |
| Minimum Flow Rate | 4 L/min (lower flow rates will damage the electrolysis cells) |
| Maximum Water Pressure | 50 PSI |
Buttons and Display
The E-1200 system features a control panel with the following indicators and controls:
| No | Description |
|---|---|
| 1 | LED display (shows system status and error codes) |
| 2 | System is running indicator |
| 3 | Error code display on LED display |
| 4 | System RUN [On/Off] button |
| 5 | Mode button |
| 6 | Set button |
| 7 | Reset alarm to resume running |
The system includes components such as a water filter, tubing, and the main unit, typically mounted on a wall bracket.
System Alarms
The system provides alerts for various operational issues:
| Error Code | Reason | Action |
|---|---|---|
| Err1 | Low Flow | Check feed water flow. Once flow is sustained above 4 L/min, press the "Reset" button to cancel the alarm. Contact the service center if the issue persists. |
| Err2 | Low Current | Check additive concentration and confirm no disruption of additive intake flow. Press the "Reset" button to cancel the alarm. Contact the service center if the issue persists. |
| Err3 | High Current | Check additive concentration and confirm no disruption of additive intake flow. Press the "Reset" button to cancel the alarm. Contact the service center if the issue persists. |
| Err4 | Low Voltage | The voltage is abnormally low. Please contact the service center for further assistance. |
| Err5 | Fan Error | The cooling fan is not functioning. Please contact the service center for further assistance. |
Settings & Performance
The system's performance can be monitored and adjusted:
Voltage (v)
The voltage is a performance measurement and is not adjustable. To display the voltage, press the "Mode" button until the voltage (v) setting is displayed while the machine is running.
Liters per Minute (L)
The flow rate, measured in Liters per Minute (L), is controlled by the water inflow gate valve. A higher flow rate decreases the concentration of free available chlorine (FAC), while a lower flow rate increases it.
Adjusting the liters per minute:
- When the system is running, press the "Mode" button until the liters per minute (L) is displayed.
- Adjust the water inflow by tightening or loosening the gate valve, which is located inside the front chamber of the system.
[Image Description: A diagram showing the gate valve, which controls water flow, connected to the system.]
Ampere (A)
The ampere setting is adjustable, ranging from 20 to 65 amp. Higher ampere settings increase the concentration of free available chlorine (FAC).
Adjusting the ampere:
- Press the "Mode" button until the ampere (A) setting is displayed.
- Press the "Set" button to increase the ampere, and the "Reset" button to decrease it.
Pump Speed (PS)
The pump speed is adjustable, ranging from 0 to 19. Lower settings increase the pump speed, thereby increasing the additive dosed into the electrolysis cell. For most applications, it is recommended to keep the pump speed in a mid-range setting.
Adjusting the pump speed:
- Press the "Mode" button until the pump speed (PS) setting is displayed.
- Press the "Set" button to increase the pump speed, and the "Reset" button to decrease it.
Safety Precautions
Ventilation Risks
Electrolyzed water releases small quantities of hydrogen gas (H2) into the air, which can be explosive if accumulated. Free chlorine molecules can form chlorine gas (Cl2) when the solution's pH becomes acidic. Chlorine gas inhalation can cause respiratory irritation or injury. Ensure the equipment is installed in a well-ventilated area to prevent gas accumulation. Avoid installing the equipment near heat sources exceeding 400°C (750°F).
Electric Shock and Fire Risks
Use only certified electrical outlets. Do not place the equipment in water or expose it to external water sources. Do not operate the equipment if the electric cord is damaged. Avoid operating in environments with relative humidity greater than 95%. In case of electric shock or fire, immediately remove the equipment from the power source.
Additive and pH Control
Additive
The total hardness of the water used for the additive must be less than 80 ppm. Using water with a total hardness greater than 80 ppm can quickly cause mineral deposits on the electrolysis cells, leading to damage. The salt used must be sodium chloride (NaCl) only, without iodine or other mineral additives, as incorrect salt can damage the electrolysis cells.
Instructions for filling the additive tank:
- Fill the additive tank with water (tap water, reverse osmosis water, or distilled water).
- Add salt and mix until the water is fully saturated with salt.
Note: Maintaining a constant level of undissolved salt at the bottom of the additive tank helps ensure the additive is fully saturated. Salt saturation in water is typically between 28% and 32%.
Controlling pH
Why is pH important? The pH of a free chlorine solution is critical because it determines which chlorine molecules will be dominant. Hypochlorous acid (HOCl) is dominant at pH 5. As the pH rises above 7.5, hypochlorite (OCl-) becomes more dominant.
- At pH 5, over 99% of the free chlorine molecules will be HOCl.
- At pH 6, over 90% of the free chlorine molecules will be HOCl.
- At pH 7, over 80% of the free chlorine molecules will be HOCl.
- At pH 8, only 20% of the free chlorine molecules will be HOCl.
[Image Description: A graph illustrating the relationship between pH and the percentage of HOCl and OCI- in a solution. The graph shows that HOCl is dominant at lower pH levels, while OCI- becomes dominant at higher pH levels, with an intersection point around pH 7.5.]
Two Methods for Optimizing pH of Free Chlorine Solution:
- Adding hydrochloric acid (HCl) to the additive tank (suitable if system settings are constant).
- Dosing hydrochloric acid (HCl) to the inflow water using a pH Dosing System (preferred method).
How to Acidify the Additive: Acidifying the additive involves adding hydrochloric acid (HCl) to the additive tank. The required amount of HCl depends on system settings. EcoloxTech provides a pH control system for ease of use.
Important: For generating HOCl for food contact, use Food Chemicals Codex (FCC) grade hydrochloric acid (HCl 35-37%). For general sanitation, technical grade hydrochloric acid (HCl 32%) may be used. Always wear proper personal protective gear when preparing additive with hydrochloric acid.
How to Acidify the Inflow Water with the pH Dosing System: EcoloxTech offers a pre-built dosing system with a pH sensor and controller to optimize inflow water pH. For more details, visit store.ecoloxtech.com. The water inflow can be adjusted as needed to optimize the system's free chlorine output for hypochlorous acid (HOCl) between pH 5 and pH 6.
Important: Same HCl grade requirements and PPE warning apply.
Controlling Concentration
The concentration is measured in parts per million (ppm) of free available chlorine (FAC). The concentration can be adjusted using three variables:
- Flow Rate (L/min) – controlled by the gate valve managing feed water flow into the system.
- Ampere (A) – controlled via system settings.
- Pump Speed (PS) – controlled via system settings.
Measuring Concentration
The concentration of free available chlorine (FAC) can be measured using standard chlorine test paper, which typically measures in ranges of 10, 50, 100, and 200 ppm.
For greater accuracy or to measure high range free available chlorine levels, a high range chlorine photometer can be used.
Supplies for measuring free chlorine concentration are available at: store.ecoloxtech.com. Search for the following SKUs:
- Chlorine Test Paper (SKU: P-1050)
- Chlorine Photometer (SKU: P-1047)
Maintenance
Over time, mineral scale can build up on the electrolysis cells, depending on usage and inflow water quality. If inflow water hardness is less than 80 ppm, scale build-up is slow, and maintenance may not be required for many years. Using the incorrect salt can cause mineral scale to build up very quickly. Mineral scale build-up disrupts the electrical current required to generate the free chlorine solution of hypochlorous acid.
When to do Maintenance:
Maintenance is recommended when the actual Ampere of the system drops to a level below 90% of the set Ampere. At this point, the system's electrolysis cells should be descaled of mineral deposits.
Formula for Maintenance Additive:
- 1800 mL of Water
- 200 mL of hydrochloric acid (35-37% HCl)
Important: Same HCl grade requirements and PPE warning apply.
Steps for Performing Maintenance:
- Open the gate valve to raise the flow rate to above 16 L per minute.
- Substitute the normal additive with the Maintenance Additive.
- Run the system for 45 minutes.
During this process, the system will operate normally, dissolving any deposits on the electrolysis cell. The actual Ampere on the system should rise back to near the set Ampere. If the Ampere does not increase, repeat the maintenance procedure up to three times. If the issue remains unresolved, contact EcoloxTech for assistance, as the electrolysis cell may require replacement.
