Haywad EasyChem Single pH Dosing Pump
Safety Instruction
Carefully read the instructions that appear in this manual and on the device. Failure to comply with the instructions can cause injuries. This document must be given to every pool user, who should keep it in a safe place.
Electrical hazard
- Disconnect the equipment from the mains supply before any intervention.
| F | NF C 15-100 | GB | BS7671:1992 | |
| D | DIN VDE 0100-702 | EW | SIST HD 384-7-702.S2 | |
| A | ÖVE 8001-4-702 | H | MSZ 2364-702:1994 / MSZ 10-533 1/1990 | |
| E | UNE 20460-7-702 1993, REBT ITC-BT-31 2002 | M | MSA HD 384-7-702.S2 | |
| IRL | IS HD 384-7-702 | PL | TS IEC 60364-7-702 | |
| I | CEI 64-8/7 | CZ | CSN 33 2000 7-702 | |
| LUX | 384-7.702 S2 | SK | STN 33 2000-7-702 | |
| NL | NEN 1010-7-702 | SLO | SIST HD 384-7-702.S2 | |
| P | RSIUEE | TR | TS IEC 60364-7-702 |
- Check that the device is plugged into a power outlet that is protected against short-circuits.
- The device must also be powered via an isolating transformer or a residual current device (RCD) with a nominal operating residual current not exceeding 30 mA.
- Ensure that children cannot play with Haywad EasyChem Single pH Dosing Pump the device. Keep your hands and any foreign objects away from openings and moving parts.
- The unit shall not be operated when there is no water flow in the cell.
- To reduce the risk of electric shock, do not use an extension cable to connect the device to the mains. Use a wall socket.
Package Content
- Reducer for injection valve (1/2” M to 3/8” F)
- PVC Crystal 4×6 suction hose (2 m)
- Polyethylene delivery hose (2 m)
- Tapping saddle (ඦ=50mm)
- Foot filter (PP riser)
- FPM Lip valve (3/8” GAS)
- PSS3 probeholder (1/2” GAS)
- Mounting bracket kit (ඦ=6 mm screws)
- pH probe
- ORP probe
- pH 7 Buffer solution
- 465 mv Calibration solution
- Yellow cup
- Nuts for peristaltic tube
Specifications
| Specifications | EASY-CHEM-SPH | EASY-CHEM-SRXG | EASY-CHEM-SRXGS |
| Range | 3.8 ÷ 8.2 pH (*1) | 400÷999 mV (*1) | 400÷999 mV (*1) |
| Accuracy | ± 0.02 pH | ± 2 mV | ± 2 mV |
| Device precision | ± 0.1 pH | ± 10 mV | ± 10 mV |
| Pump flow rate | 1.5 l/h | 1.5 l/h | — |
| Power supply | 230 Vac 50-60Hz | 230 Vac 50-60Hz | 230 Vac 50-60Hz |
| Consumption | 13,5 Watt | 13,5 Watt | 9 Watt |
| Dosage method | Proportional Set Point adjustable | Constant dosing Set Point adjustable | |
| Display | 4 digits with 7 segments | ||
| Probe calibration | Automatic | ||
| Max. back-pressure | 1.5 Bar | 1.5 Bar | |
| Weight | 1.3 Kg | 1.3 Kg | 1.0 Kg |
| Dimensions (WxHxD) | 120 x 260 x 136 mm | 120 x 260 x 136 mm | 120 x 260 x 136 mm |
Default parameters table
| Item | Easy Chem SPH | Easy Chem SRXG | Easy Chem SRXGS |
| Set point | 7.4 pH | 750 mV | 750 mV |
| Alr min | 6.2 pH | 450 mV | 450 mV |
| Alr Max | 8.2 pH | 900 mV | 900 mv |
| Overfeed alarm | OFF | OFF | OFF |
| Power On Delay | OFF | OFF | OFF |
Customer Service
- Ph: 1-800-657-2287
- Website: www.haywardcommercialpool.com
FAQs
What is the Hayward EasyChem Single pH Dosing Pump used for?
By dosing acid (or base) to keep water chemistry within optimal limits, this device automatically measures and maintains the pH balance of your pool water. It guarantees the best possible comfort, sanitiser efficacy, and pool equipment protection.
What type of pool is this dosing pump suitable for?
Particularly for those looking for automatic pH control without complete chemical automation systems, it is perfect for small businesses and domestic pools.
What’s the ideal pH range this unit maintains?
The acceptable range for most pools is 7.2 to 7.6, which is what the dosing pump seeks to maintain.
Does this system include a pH sensor?
The dosing pump aims to keep the pH between 7.2 and 7.6, which is the permitted range for the majority of pools. The user can adjust the setpoint as needed.
Where should the dosing pump inject the chemical?
In the return line, injection should take place after the filter and heater, preferably using a special injection fitting. To avoid corrosion, do not position the injection point in front of delicate equipment.
Is the pump variable speed or fixed rate?
Depending on the type, the EasyChem Single pH pump usually has a fixed or adjustable dosage rate. Rather than varying motor speeds, the pH readings regulate the dose frequency.
Can this dosing pump be integrated with pool automation systems?
Although most EasyChem models are standalone, some might enable relay-based triggering or alarms to interface with other systems. For information on integration options, consult the documentation for your particular model.