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Summary of Contents for PCI OAFE-1550
- Page 1 OAFE-1550 Outdoor Airflow Measurement System Operation & Maintenance Manual Engineered for accuracy, applicability, durability and simplicity in HVAC air systems...
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Page 3: Table Of Contents
OAFE-1550 Operation & Maintenance Manual TABLE OF CONTENTS TABLE OF CONTENTS ..........................i INTRODUCTION ..........................1 1.1. DESCRIPTION........................... 1 1.2. BASIC OPERATION ......................... 1 1.3. SAFETY ............................. 2 1.3.1. Electrical Connections ......................2 1.3.2. Static Electricity ........................2 AIRFLOW MEASUREMENT STATION ..................3 2.1. -
Page 4: Table Of Contents
OAFE-1550 Operation & Maintenance Manual TABLE OF CONTENTS 6.19. DP DISPLAY FORMAT - DISPLAYED ONLY IN PRESSURE MONITOR MODE ..19 6.20. FACTORY DEFAULTS ......................20 SIGNAL PROCESSOR TECH CONFIG. MENUS ................. 21 7.1. AREA FACTOR ........................21 7.2. MIN. CALIBRATION ......................21 7.3. -
Page 5: Introduction
1.1. DESCRIPTION The OAFE-1550 is an AMCA certified outdoor airflow measurement system with integral signal processor that is capable of producing an overall ±0.5% accuracy through the velocity range of 200 to 1,200 fpm and ±5% accuracy at 100 fpm. -
Page 6: Safety
OAFE-1550 Operation & Maintenance Manual The AutoZero option detects and corrects any zero offset caused by large ambient temperature changes. The Temperature Compensation option compensates the flow and velocity signal for density changes caused by variations in the process air temperature. An external temperature transmitter is required. -
Page 7: Airflow Measurement Station
OAFE-1550 Operation & Maintenance Manual 2. AIRFLOW MEASUREMENT STATION 2.1. TYPICAL INSTALLATIONS ROOFTOP AHU WITH RAIN HOOD ROOFTOP AHU WITH RAIN HOOD EXTERIOR MOUNTED AIRFLOW STATION INTERIOR MOUNTED AIRFLOW STATION OA INTAKE PLENUM OA INTAKE PLENUM (BY OTHERS) (BY OTHERS) -
Page 8: Installation Guidelines For Ducted Applications
OAFE-1550 Operation & Maintenance Manual 2.2. INSTALLATION GUIDELINES FOR DUCTED APPLICATIONS The station may be installed in any duct configuration. However, the accuracy of the installation is dependent on the flow conditions in the duct. The minimum installation requirements based upon a uniform velocity profile approaching the duct disturbance for flow rates less than 2,500 fpm are shown below. -
Page 9: Signal Processor Installation
OAFE-1550 Operation & Maintenance Manual 3. SIGNAL PROCESSOR INSTALLATION 3.1. NEMA 1 MECHANICAL INSTALLATION Refer to Figure 3.0 for installation clarification. 4.625" 3.500" 75 F 1,225 A CFM 2.265" M i c r o T r a n s S I G N A L P R O C E S S O R 8.250"... -
Page 10: Nema 4 Mechanical Installation
OAFE-1550 Operation & Maintenance Manual 3.2. NEMA 4 MECHANICAL INSTALLATION Refer to Figure 3.1 for installation clarification. MOUNTING SCREW DIA. UP TO 1/4". (TYP OF 2) I.D./DATA LABEL 75 F 1,225 ACFM M ic r o Tr a n s 8.2"... -
Page 11: Electrical & Pneumatic Installation
OAFE-1550 Operation & Maintenance Manual 3.3. ELECTRICAL & PNEUMATIC INSTALLATION Refer to Figure 3.2 for electrical and pneumatic installation clarification. Nema 4 Option - Remove the MicroTrans cover by turning each corner cover mounting screw counter clockwise. Both Nema 1 & Nema 4 enclosures incorporate three 1/2" conduit connections and one 3/4"... -
Page 12: Input/Output Set-Up
OAFE-1550 Operation & Maintenance Manual 3.4. INPUT/OUTPUT SET-UP The MicroTrans has been configured and calibrated at the factory for your specific requirements. Refer to MicroTrans Set-Up label located on the left side of unit to verify correct Input/Output configuration for the application. Refer to chart and Figure 3.2 above if input or output configuration changes are required. -
Page 13: Operating Range
OAFE-1550 Operation & Maintenance Manual Warning Message: Op Range Outside allowable Value Op Range will be reset to the MAX F.S. value If the new Area Factor causes the existing Operating Range value to be outside the new calculated Min. -
Page 14: Signal Processor Power-Up Configuration
OAFE-1550 Operation & Maintenance Manual 4. SIGNAL PROCESSOR POWER-UP CONFIGURATION 4.1. ACTIVE POWER-UP DISPLAY Upon initial power-up, Software Revision information will be displayed on the graphic display for approximately 5 seconds. EQ-1 Software Rev. XX.XXX BACnet Rev. XX.XXX 4.1.1. Active Display Descriptions After power-up initialization, the following information will appear on the graphic display depending upon the options purchased. -
Page 15: Key Functions
OAFE-1550 Operation & Maintenance Manual 4.2. KEY FUNCTIONS The following figure and description identify the function of each button. POWER SWITCH ENTER TEMP. PROC. INPUT OUTPUT J3 (ALARM OPTION) 1 2 3 4 5 6 7 8 11 12 13 14 15 16 17 18... -
Page 16: Signal Processor Display Menus
OAFE-1550 Operation & Maintenance Manual 5. SIGNAL PROCESSOR DISPLAY MENUS 5.1. FIELD & TECH CONFIG MENUS The following table shows the Field and Tech. Config menus for devices set to monitor Flow, Velocity and Pressure. The display will vary depending upon the options purchased. -
Page 17: Signal Processor Field Menus
OAFE-1550 Operation & Maintenance Manual 6. SIGNAL PROCESSOR FIELD MENUS To enter the Field Setup Menu; depress and hold the Enter button for 5 seconds. 6.1. OPERATING RANGE This menu allows the user to view the range of values possible for the user to enter as the Operating Range. -
Page 18: Lockdown
OAFE-1550 Operation & Maintenance Manual Standard Flow Standard Actual Velocity Actual Flow Pressure Units Velocity Units Units Units Units SCFM ACFM SFPM AFPM Inch w.c. SCFH Sm/s Am/s SL/S mm w.c. 6.4. LOCKDOWN Due to the high square root gain associated with very low delta p values, the output is locked to zero output value until the output value reaches the specified LockDown value entered. -
Page 19: Flow Correction
OAFE-1550 Operation & Maintenance Manual 6.6. FLOW CORRECTION The Flow Correction menu was incorporated into the MicroTrans to give the user an easy way to make corrections to the display and output without changing the Op. Range value entered by the factory or user. -
Page 20: Autozero (Optional) - Interval
OAFE-1550 Operation & Maintenance Manual 6.8. AUTOZERO (OPTIONAL) - INTERVAL The AZ Interval menu allows the user to select the AutoZero Interval from once an hour to once a day in 1 hour increments. Use the UP/DOWN keys to select the interval value. Upon device power up, an AutoZero cycle will occur after 20 seconds. -
Page 21: Temp. Comp. (Optional) - Temp. Values
OAFE-1550 Operation & Maintenance Manual 6.11. TEMP. COMP. (OPTIONAL) - TEMP. VALUES The Temperature Values menu allows the factory or user to select the minimum and maximum temperature range values. The minimum value can be a plus or minus value. This menu is available only if the Temp Comp. -
Page 22: Display Filter
OAFE-1550 Operation & Maintenance Manual 6.14. DISPLAY FILTER The Display Filter menu allows the user to select between two display filter algorithms and the filter rate. Selecting “Flow” (default setting) applies a modified rolling average algorithm to the display value. -
Page 23: Alarm Options (Optional) - Alarm Values
OAFE-1550 Operation & Maintenance Manual 6.17. ALARM OPTIONS (OPTIONAL) - ALARM VALUES The Alarm Values menu allows the user to enter the Low or the High flow or pressure alarm value. Alarm values will be displayed in the same Eng Units selected in Eng. Units menu. This menu is available only if the Alarm option is purchased. -
Page 24: Factory Defaults
OAFE-1550 Operation & Maintenance Manual 6.20. FACTORY DEFAULTS If pressure calibration changes are made to the MicroTrans program and it is determined that they were made incorrectly, by selecting YES and pressing enter in both of the Set To Factory Default menus, the device will return all pressure calibration values and device settings to the original factory settings (See Factory Defaults table below for a list of saved data points and settings). -
Page 25: Signal Processor Tech Config. Menus
OAFE-1550 Operation & Maintenance Manual 7. SIGNAL PROCESSOR TECH CONFIG. MENUS To enter the Tech Configuration Menu, press UP/DOWN buttons simultaneously, enter password number 1000 and press the enter button. 7.1. AREA FACTOR Allows user to enter or modify an existing Area Factor. If a new Area Factor value is entered and causes the previous entered Op. -
Page 26: Span Calibration
OAFE-1550 Operation & Maintenance Manual 7.4. SPAN CALIBRATION The Span Calibration menu allows user to perform a span transducer calibration to eliminate any possible transducer drift. This value will be placed in a different memory location then the Factory Span memory location and used until a Return to Factory Defaults is selected (section 5.20). -
Page 27: Process Output Cal
OAFE-1550 Operation & Maintenance Manual 7.7. PROCESS OUTPUT CAL The Process Output Cal menu allows the user to make output zero and span adjustments. Span adjustments require a low pressure air source adjusted to the Full Scale value shown on the side label. -
Page 28: 4Pt Flow Correction
OAFE-1550 Operation & Maintenance Manual 7.10. 4PT FLOW CORRECTION The 4 PT Flow Correction menu allows the user to make corrections to the display and output signal at 20% increments between 20% and 80% of Operating Range value entered. The Displayed Value is a fixed value determined by the percentage of Operating Range. -
Page 29: Mac Address (Bacnet Communication Option)
OAFE-1550 Operation & Maintenance Manual 7.12. MAC ADDRESS (BACNET COMMUNICATION OPTION) The MAC Address menu allows the user to set a unique device address when connecting to a BACnet network. T SIGNAL PROCESSOR he default is 02. For additional information refer to the Communication O&M. -
Page 30: Baud Rate
OAFE-1550 Operation & Maintenance Manual 7.15. BAUD RATE The Baud Rate menu allows the user to set a unique network baud rate; BACnet 9.6K / 19.2K, Modbus 9.6K / 19.2K / 38.4K / 57.6K / 115.2K. The default is 19.2K. For additional information refer to the Communication O&M. -
Page 31: Signal Processor Warning Messages
OAFE-1550 Operation & Maintenance Manual 8. SIGNAL PROCESSOR WARNING MESSAGES 8.1. INPUT PRESSURE OVERRANGE MESSAGE If the input pressure exceeds the entered Op. Range value, the following message will appear on the display. It will alternate between the process display and the error message until the input falls below the Op. -
Page 32: Signal Processor Troubleshooting Guide
OAFE-1550 Operation & Maintenance Manual 9. SIGNAL PROCESSOR TROUBLESHOOTING GUIDE TROUBLESHOOTING TABLE SYMPTOM SOLUTION No Display or Back Light Verify ON/OFF switch is in ON position Verify correct input power and connection at 3 pin connector J1 Contact Factory Display background is too dark or Adjust Display potentiometer located in the upper characters are too light. - Page 33 OAFE-1550 Operation & Maintenance Manual TROUBLESHOOTING TABLE SYMPTOM SOLUTION Continued If Temp. Comp. Option is installed, verify correct temperature input signal. Verify temperature input connected correctly. Contact Factory Incorrect Temperature Reading Verify Temperature Transmitter specifications match with MicroTrans ID Label...
- Page 34 OAFE-1550 Operation & Maintenance Manual TROUBLESHOOTING TABLE SYMPTOM SOLUTION 11. Continued Check for a pinched tube beneath the main board. (Caution: Remove power before removing board) Contact Factory Paragon Controls Incorporated Revision Level 000...
- Page 35 Paragon Controls Incorporated Revision Level 000...
- Page 36 Paragon Controls Incorporated P.O. Box 99, Forestville, CA 95436 http://www.paragoncontrols.com Phone 707 / 579-1424 Revision Level 000...
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