It is also unaffected by protein residue. Pulse Instruments Model POA08 is a direct measuring monitoring and control system that utilizes a specialized non-membrane sensor which provides a very stable and accurate measurement of Peracetic Acid, even in conditions where a high amount of organic matter is present.
Pulse Instruments POA08 Manual Version 1.1 Functions Operation The system features the following operational capabilities: Provides a visual numeric value of POAA ppm as measured by the sensor. Controls a POAA pump in order to maintain a given setpoint of POAA.
Pulse Instruments POA08 Manual Version 1.1 Installation & Setup Control Panel Overview Visual Strobe Alarm Audio Alarm Alarm Reset Pushbutton Audio Alarm Enable Switch Power Switch Touch Screen Strain Reliefs for Wires and Cables Touch Screen – To access the touch screen, open the latches on the upper and lower right side of the door.
Pulse Instruments POA08 Manual Version 1.1 Manifold.Overview Sample Inlet Ball Valve Sample Outlet Flow Meter ppm Sensor Solenoid Pressure Switch Box Spray Nozzle Water Source for Spray Nozzle Flow Cell Sampling Port Sample Inlet – The sample inlet is the start of the sensor manifold. A sample should be fed through the manifold inlet from a dedicated sampling pump, or off the pressure side of a recirculation pump.
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Pulse Instruments POA08 Manual Version 1.1 Connect this tubing to a water source such as a city water line using the included ¼” tube to ¼” MNPT connector. Because municipal water contains chlorine, the spraying procedure may cause interference with the ppm reading while the spray is active.
Pulse Instruments POA08 Manual Version 1.1 Setup and Wiring Mount the control panel and the manifold assembly. Provide the sample inlet of the manifold with a sample from the process water which is pressurized and can provide at least 1 GPM of flow.
Pulse Instruments POA08 Manual Version 1.1 Operation Sample Loop Requirements The manifold requires a constant flow rate through it in order for the measurement to be accurate. Built into the manifold is a ball valve and a 0-2 GPM flow indicator. After the sensor is inserted into the manifold and the sample loop has an adequate flow rate, use the ball valve to adjust the flow rate so that the flow indicator reads 1 GPM.
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Pulse Instruments POA08 Manual Version 1.1 Pump On Limit – The maximum amount of time that the pump can be continuously powered on before turning off and activating the alarm. An excessively long time indicates a pump problem. Alarm Timers ...
Pulse Instruments POA08 Manual Version 1.1 Calibration Zero calibration and sensitivity calibration are done on the transmitter located inside the monitor panel. Zero calibration screw Sensitivity calibration (fine) Sensitivity DIP Switches #1 through #7 Sensor terminal block Sensitivity calibration (coarse)
1. Take a sample of the water at the sample valve and determine ppm using a titration test or a similar method. We recommend a Peracetic Acid test kit, Pulse Instruments part # 7191-01. 2. Using switch configuration #1, adjust the coarse sensitivity screw to match the ppm reading on the controller display to the test result.
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