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1. 7 LPS User s Responsibilitv for Safetv KOBOLD manufactures a wide range of process sensors and technologies While each of these technologies are designed to operate in a wide varietv of applications it is the user s responsibility to select a technology that is appropriate for the application to install it per these installation instructions to perform tests of the installed system and to maintain all components The failure to do so could result in property damage or serious injury Proper Installation and Handling Use of sealant is advisable with most installations to minimize air loss Always check for leaks prior to system start up Wiring and Electrical The electrical connection specifications for the LPS are contained in Diagram 2 2 The sensor system should never exceed these ratings Electrical wiring of the sensor should be performed in accordance with all applicable national state and local codes Temperature and Pressure The LPS is designed for use in application temperatures up to 185 F and for use at ambient pressures Operation outside these limitations will cause damage to the unit and possible personal injury Material Compatibility The LPS is made of steel brass and SS The housing is ABS plastic Make sure that the unit is chemically compatible with the application media While the switch housing is liquid resistant when installed properly it is not designed to be immersed It should be mounted in such a wa
2. KOBOLD LPS AIR FLOW MONITOR User Instructions Kobold Instruments Inc KOBOLD Instruments Canada Inc 1801 Parkwav View Drive 9A Aviation OBOLD Pittsburgh PA 15205 Point Claire QC H9R 422 412 788 2830 Fax 412 788 4890 514 428 8090 Fax 514 428 8899 www koboldusa com FM Rev 04 13 LPS Table of Contents 1504 Ge aa a a a a a e a E 1 2 0 GPSCHICAUONS na ae 2 3 0 Installation instructions ass near 4 4 0 OBST AMON ta sas niezel a A dela uous e ia a ia ea 5 4 1 Adjusting the setpoint neeeennnnnnnnnnn nennen 5 4 1 1 Activating the Setpoint on Rising Flow 5 4 1 2 Activating the Setpoint on Falling Flow 5 4 2 Adjustment of the Setpoint Beyond Factory Limits 5 5 0 Maintenance aa Wikis 6 6 0 Arrival of Damaged Equipment sen ennennznnnnnnzznnnnzanzzzzza 6 7 0 Need Help With Your LP Site wie tac dida 6 List of Diagrams Diagram 2 2 Electrical Connections semenniezzn nanna 2 List of Tables Table 2 1 Materials of GOMSUUCTOR ae 2 FM Rev 04 13 LPS KOBOLD LPS AIR FLOW MONITOR User Instructions CAUTION For safety reasons please read the cautionary information located at the end of the manual before attempting installation 1 0 General The KOBOLD LPS flow monitor is an air flow activated switch intended for use in situations where a minimum or maximum airflow must be maintained It is designed to be mounted directly on duct work for us
3. ate a fire hazard FM Rev 04 13 3 LPS 3 0 Installation Instructions CAUTION For safety reasons please read the cautionary information located at the end of the manual before attempting installation The LPS flow monitor is designed for direct installation onto the flat surfaces of air handling duct work The orientation of the instrument is unimportant However the airflow direction must be in the direction indicated by the arrow on the instrument base The instrument is held in place by four 4 sheet metal screws not supplied For installation after selecting an appropriate mounting location with sufficient clearance for both the paddle and cover housing trace around the inside perimeter of the mounting gasket with a pencil or marker Mark the mounting screw holes and then drill appropriately sized pilot holes for the mounting screws self drilling screws may also be used Neatly trim the marked opening in a workmanlike manner to allow for sufficient paddle and lever clearance Note To avoid damage in transit your LPS flow switch has been disassembled It temporarily consists of three parts These parts are 1 main body 2 gasket 3 paddle The gasket is to be used during installation to form a vibration free seal with the duct metal The paddle must be reinstalled to the main body as follows 1 Remove screw and lockwasher from lower part of paddle arm 2 Align holes in paddle with screw hole and positioning pin in padd
4. e in applications where airtight installation is not necessary The device operates as follows 1 Flowing air impacts upon a paddle attached to a lever which has its pivot point in the instrument housing outside the airflow This causes the paddle lever arrangement to pivot about its hinge point 2 The motion of the paddle lever is opposed by a spring whose tension is setscrew adjustable The amount that the lever pivots for a given airflow can in this fashion be controlled 3 Positioned in the path of the paddle lever is a microswitch When the lever pivots through a preset angle the microswitch is activated 4 Result Activation of the microswitch can through use of the set screw spring arrangement be chosen to occur at a predetermined airflow rate FM Rev 04 13 LPS 2 20 Specificati Operating Principle Spring resisted paddle Range 195 1575 ft min turn off 395 1810 ft min turn on Pressure Ambient Maximum Temperature 185 F Switching Voltage Switching Current Maximum Power Switch Action Connections Media 8 Ambient Table 2 1 Materials of C l Paddle SS Lever Brass Connection Mounting Plate Steel Housing Base ABS Cover Polycarbonate Di 72 Electrical C 24 250 VAC 8 A Max Inductive 15 A Max Resistive 2000 VA SPDT Red Common Blue N C opens w flow White N O closes w flow CAUTION Exceeding any one maximum electrical rating will cre
5. le arm 3 Replace screw and lock washer 4 To check your work compare with LPS picture on cover of this manual 5 Congratulations You are now a veteran LPS paddle installer Use the supplied gasket to seal off the area between the LPS and the supply duct Install the assembled flow switch into the duct and secure the mounting screws Connect to the internal switch by removing housing leading cable through inlet and connecting according to Diagram 2 2 FM Rev 04 13 LPS 4 4 0 Operation After installation the switch point may be adjusted Note that the switch point is dependent upon the mounting orientation of the LPS This is due to the weight of the paddle acting with or against the paddle spring If you have reoriented your LPS it will be necessary to reset the switch point A ae Diagram 2 2 shows the placement of the setpoint adjustment screw Turning this screw clockwise will increase the flow rate required to activate the switch Ad Assignee Rising FI To adjust the microswitch to trigger on rising flow do as follows 1 Establish desired setpoint flow rate in the system 2 Turn setpoint screw fully clockwise 3 Slowly turn setpoint screw counterclockwise until microswitch activates 4 Replace housing cover OME Cr eines To adjust the microswitch to trigger on falling flow do as follows 1 Establish desired setpoint flow rate in the system 2 Turn the setpoint screw fully counterclockwise 3 Slo
6. wly turn setpoint screw clockwise until the microswitch activates 4 Replace housing cover 42 Adi f the Setpoint E IE en Since the LPS is activated by the force of the moving air it is possible to increase the maximum setpoint values by shortening the paddle If you choose to do this we recommend that you trim the paddle a little at a time to avoid overcompensation FM Rev 04 13 5 LPS 50 Maintenance The simple design of the LPS assures an almost maintenance free instrument The only possible maintenance area is the lever hinge of the LPS If operating in a humid environment we suggest that the lever hinge be checked occasionally to assure free movement 60 Arrival of C i Equi Your instrument was inspected prior to shipment and found to be defect free If damage is visible on the unit we advise that you carefully inspect the packing in which it was delivered If damage is visible notify your local carrier at once since the carrier is liable for a replacement under these circumstances If your claim is refused please contact KOBOLD Instruments for further advisement 70 Need help with your LPS Call one of our friendly engineers at 412 788 2830 FM Rev 04 13 LPS 6 Caution PLEASE READ THE FOLLOWING GENERAL FLOW METER MONITOR WARNINGS BEFORE ATTEMPTING INSTALLATION OF VOUR NEW DEVICE FAILURE TO HEED THE INFORMATION HEREIN MAV RESULT IN EQUIPMENT FAILURE AND POSSIBLE SUBSEQUENT PERSONAL INJURV FM Rev 04 13
7. y that it does not normally come into contact with fluid Flammable Explosive and Hazardous Applications The LPS is not of an explosion proof design The LPS models should not be used in areas where an explosion proof design is required Make a Fail Safe System Design a fail safe system that accommodates the possibility of switch or power failure as well as operator error In critical applications KOBOLD recommends the use of redundant backup systems and alarms in addition to the primary system FM Rev 04 13

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