FAQ - water and wastewater treatment equipment, chemical metering, flow measurement, and process control.

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How do you calibrate the Gamma/L pump?

Before callibrating, make sure the pump is plugged into the appropriate electrical outlet and that the suction and discharge lines are connected to the pump. Set the stroke length. Stroke frequency and pressure to the desired settings, set the pump to "MANUAL" mode , and prime the pump.

Please note: a calibration column is needed to perform this function.

May-03-2006

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I am working with a ProMinent D1C controller and controlling pH. I keep getting a check sensor error. What is causing this problem?

The problem may be that the checkout time is set to low. This feature is used to detect a defective sensor; if the value is set to 1 second. The processor looks for changes on the sensor readings; if the display does not change during this interval, a check sensor will result.

May-03-2006

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Demineralized water or pH buffer solution of 4.0 is preferred for storage of pH probe?

pH buffer of 4.0

May-03-2006

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What is the maximum recommended water pH for free chlorine maintenance?

A maintenance water pH of 8.5 is recommended for free chlorine residual maintenance for two reasons: the disinfecting power of free chlorine is rapidly and pregressiviely reduced as pH levels rise over 7.0 and pH levels tend to rise naturally in distribution systems as a result of biofilm activity.

May-03-2006

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Why is the injection point clogging up since I switched from chlorine Gas to Sodium hypochlorite?

pH of the Sodium Hypochlorite is above 11pH .

May-03-2006

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I am using 100 PPD chlorine gas in my system. How much 12% sodium hypochlorite is required is required to switch too?

100 GPD, of 12%

May-03-2006

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When do I need to clean/replace the chlorine analyser cap?

When the slope is lower than the following:

probe range	2ppm	5ppm	10ppm
slope mA/ppm	2.0	0.85	0.45

May-03-2006

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When programming the D1C, what options can i enable or disable?

The D1C controller can be set up for a complete operating menu or a reduced menu. The reduced operating menu permits operation of the most important parameters, but will not allow the operator to change system parameters that are normally set up once, dur

May-03-2006

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What is the best way to clean sensors?

Glass sensors should be soaked in a dilute of 1% Hydrochloric acid solution for several hours with periodic gentle brushing, then rinsed with water. The steps are the same for most membrane sensors, but the electrolyte must be replaced after cleaning. (Th

May-03-2006

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Metcon Sales and Engineering provides equipment & services to the water treatment and waste water treatment industry. Metcon integrates industry leading technology for
its’ water filtration systems, process control systems, reverse osmosis water treatment systems, water treatment equipment, chemical metering, water testing and
process instrumentation. Instrumentation includes: pressure sensors, security sensors, ph sensors, water level sensors, and multi parameter
analytical instruments. Metcon’s manufactured specialty products can be employed in all water systems, water treatment
process, water separator and waste water systems.;