Installation

What’s in the Box 

One APNTU Turbidity Panel Assembled and Complete with: 

• 110VAC Power Supply Cord  
• TS10 Color Touchscreen display 
• WR10 Dual Sensor Flow Reservoir  
• Turbidity Sensor (may be wrapped/packaged separately for shipping) 
• Inlet Flow Meter  
• Isolation Valve  
• Inlet Tubing, ¼” OD (5 ft length) (connection and assembly required) 
• Outlet Tubing, ¾” ID (5 ft length) (connection and assembly required) 
• Rear FRP channel strut (3) and hardware (connection and assembly required) 
• Wall-mounting red-head concrete bolts (6)  
• Electrical Schematics 

Before installation, check all components for damage and check all fasteners and union nuts. Tighten as needed.  

Preparation 

The APNTU is designed to withstand outdoor conditions, although it is recommended to locate the panel in a protected enclosure for maximum life. A cool, dry location where the unit can be easily monitored and serviced is recommended. Special ventilation is not required. 

Choose a location that ensures proper water inlet conditions. Ensure minimum water pressure for flow requirement. 7.5 PSI water source is recommended, but it may be possible to maintain proper water flow with approximately 3 PSI water, or a static elevation of 10 feet. Prevent excess inlet pressure by installing a PRV on any water source with pressure above 30 PSI.   

The APNTU should be mounted on a level, flat surface. We recommend using the provided FRP strut for secure installation. When mounted to a wall, use hardware appropriate for the wall material and support. Check weight and force requirements prior to mounting to the wall.    

Do not support any other structure or piping from the APNTU panel.  

Wall Mount Space: The APNTU analyzer panel size is 36” H x 20” W x 10” D in.  

Please accommodate sufficient space for mounting. The panel is provided with rear strut for simple wall mounting.  

Wall Mount Weight: Approximately 33 lbs (15kg). Please use appropriate mounting hardware. 

When moving and lifting the skid, use the provided handles and be careful not to damage any component hardware.    

Physical Installation 

The APNTU must be level to ensure accuracy. The WR10 chamber comes with an integral bubble level.  Check the level before final mounting.   

If mounting to the wall, follow these instructions: 

1. Use the existing FRP strut and provided brackets and hardware. 
2. Choose a wall location and mark the wall location for FRP mounting. 
3. Drill holes or prepare wall surface. 
4. Mount FRP strut using appropriate hardware for wall or surface.  
5. Re-attach panel to strut using provided hardware.  

Sensor Installation 

The UT700 sensor may be shipped separately in the box. They must be inserted into the WR10 Chamber to be installed. See the maintenance section for details on sensor installation and replacement. 

Take care when connecting the sensor cable to the sensor.  

This may also be a good time to check the inside of the WR10 chamber to ensure it is clean and free of debris. Use a clean cloth to wipe the inside of the chamber.  

Piping and Tubing Connections 

The APNTU Analyzer must be connected to a proper water source with adequate pressure to provide minimal flow through the chamber. The discharge water outlet location must be determined prior to installation. 

Before connecting the water supply to the unit, let the water run for 30 seconds to ensure all debris and particulates have cleared. New connections or valves that have not been opened recently may contain dirt or other sediment build-up. Run this water to drain.  

The analyzer is provided with inlet and outlet tubing proper for inlet water connection. 

Water Supply: Inlet water pressure should be from 7.25 – 30 psi (0.05-0.2MPa) with an inlet feedwater line diameter of ¼-inch O.D. Tubing. The APNTU is provided with an inlet Rotameter and flow-regulating valve for sample water inlet flow control and limited pressure regulation. The range of inlet flow for the WR10 should be consistently maintained between 3.1 gph and 6.2 gph (200 and 400 mL per minute.) 

Drainage: The WR10 flowing outlet (3/4” I.D. Tubing) is located on the bottom of the WR10. The weir overflow (3/8-inch O.D. Tubing) is located on the top of the WR10. Both flowing outlet and overflow must be connected to a discharge drain via gravity flow. 

A drain valve is located at the bottom of the unit for complete drainage during maintenance. Keep this valve closed during normal operation.  

We recommend checking system pressure from the source. Do not put too much pressure on the unit. If supply water pressure is above 30 PSI, an inlet pressure-regulating valve may be required.  

Wiring 

Always wear protective clothing, face shield, safety glasses and gloves when working on your Analyzer. Use caution when lifting and mounting equipment. When in doubt, contact the factory for assistance. 

Power Wiring 

The APNTU analyzer has universal AC power supply equipment allowing users simply to plug the power supply into a 100~240V AC 50/60Hz power outlet for normal operation. The unit comes with a 6-foot power cord with a standard 110VAC 15-5P connector.   

The process of electrical connection to contact the 220V single-phase power supply, should be operated by personnel with an electrician’s license. Failure to operate according to the electrical code of practice may result in electric shock injury or even death. Note: When in doubt regarding your electrical installation, contact a licensed electrician. 

Wiring Diagram 

The APNTU analyzer uses a simple terminal block connection. The terminal board comes   prewired to sensor 8-pin pigtail cable. The input cable offers a male adapter for direct connection to the sensors.    This cable is to be terminated to the sensor only.    

Input/Output Wiring 

The internal terminal board is prewired to the 8-pin sensor cable.  

• The input cables/wires for the UT700 are labeled for easy reconnection if the sensors need replacing.  

Output wiring to 4-20ma and Modbus TCP will require opening the control panel. This can be done easily with a standard flathead screwdriver. Unscrew the two connectors on the right-hand side of the panel and open.  Terminal connections for output signals are labeled on terminal blocks 35-40.   

Note: Shielded cables must be used on all signal wiring.  

Refer to the instructions in the manual for detailed information. 

FAQs

Frequently Asked Questions