PPH-1 pH Controller Brochure PPH-1 pH Controller Manual |
The PPH-1 is a pH controller designed for cooling tower circuits. It utilises a sensor to measure the level of pH, when a certain level of pH is reached the controller will trigger dosing cycles. The dosing cycle can operate in three ways. The first operates by cycling on / off timers, this is known as normal. The second operates in a proportional manner, dosing towards the set point at a reduced rate. This avoids over dosing. The third is known as adaptive proportional capacity to 'learn' from the behaviour of the system and adjust it's on and off by an algorithm programmed into the instrument. It also features an alarm and 4-20 mA output. |
Features & Benefits- 0-14 pH range with 0.01 pH resolution
- Large 3½ digital LCD display
- Enter all calibration parameters into non-volatile memory with an easy-to-use rotarty encoder
- Increased fine-tuning of dosing with automatic pulse width modulation
- Alarm output with high and low set point. Potential free relay contacts
- Fully isolated 4-20mA current output
- 240VAC/5A relay output easily connected via 3 way terminal strip
- 4-20mA signal output configurable over entire 0-14pH range
- Thermo plastic enclosure with transparent cover. Rated to IP55 specifications
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