Summary of Contents for Omega DPF78 SERIES
- Page 1 User’ s Guide Shop online at www.omega.com e-mail: info@omega.com DPF75, DPF76 AND DPF78 SERIES Rate/Totalizer M1090 /071603...
- Page 2 Toll Free in United Kingdom: 0800-488-488 e-mail: sales@omega.co.uk It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
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Page 3: Table Of Contents
UNPACKING Remove the Packing List and verify that you have received all equipment. If you have any questions about the shipment, please call OMEGA Customer Service Department at 1-800-622-2378 or (203) 359-1660. When you receive the shipment, inspect the container and equipment for any signs of damage. -
Page 4: Quick Set-Up Guide
QUICK SET-UP GUIDE Determine what function the panel meter is to perform, e.g., rate display with alarm, batch control, totalizer, etc. Ensure compatibility with sensor. The DPF70 panel meters require a pulse (or contact closure) input. The pulse must exceed 3 VDC and drop below 1 VDC. If necessary, as in the case of paddle wheel, turbine meter or other types of inductive pick-up sensors, a signal conditioner or pulse amplifier (such as FLSC-AMP) can be used. - Page 5 COUNTER STEP 2: DPF75, DPF76: Reset to zero "rST 0" will allow us to count up. "SET Pr" counts down from the preset value. To read the total in whole gallons, set the decimal point to the far right. Since you do not want to sum or take the difference of two inputs, choose "A SEP B" (DPF75 only).
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Page 6: Specifications
DESCRIPTION & SPECIFICATIONS DESCRIPTION: Analog Output: The OMEGA DPF70 is a dual input (channel A and B) counter/ An optional 4-20mA (0-20mA) output is available for ratemeter, each with its own 5 digit dividing scale factor. The two 5 the DPF70 series. The output can be programmed AMP preset relay outputs can be programmed by the user to apply to track rate or total. -
Page 7: How To Mount The Unit
HOW TO MOUNT THE UNIT The unit is designed to be mounted with a gasket providing a water tight seal. Two mounting brackets are provided to secure the unit to the panel. A panel less than .1" may distort if the clamps are screwed too tightly. Slide the body of the unit through the rubber gasket. -
Page 8: Wiring
WIRING The rear terminal contains 12 screw terminals for connecting #14 to #28 gauge wire. The unit is controlled by a microprocessor and, therefore, an electrically "noisy" environment could cause operating problems. The input power line should not be common to power lines for motors, pumps, contactors, etc. The unit is designed to be immune from line or RF voltage interference. -
Page 9: Connecting Ac/Dc Power
For D.C. operation, connect + 12V to pin 7 and - D.C. to pin 8. WIRING CONSIDERATIONS Connecting the DPF70 Series to Omega Flowmeters and Amplifiers: FTB4605 & FTB4607 Water Meters: DO NOT USE PIN 7 WITH THESE METERS! -
Page 10: What Can You View
WHAT CAN YOU VIEW? 1) "A sub B" - If you have selected the "A sub B" mode, pressing "view" shows: A) The net result of subtracting input B from input A. Pulses on input B will subtract (count down). Pulses on input A will add (count up) if "reset to 0"... -
Page 11: Operating Front Panel
OPERATING THE FRONT PANEL ENTER LOCK PRE A PRE B VIEW PRGM Press to ENTER in Press to "enter" Press to view or Press to view or Press to alternately Press to cycle the programming LOCK code to change Preset A change Preset B view A Rate&... -
Page 12: Program Codes & Descriptions
PROGRAM CODES AND DESCRIPTIONS The following is a list of abbreviations as they appear on the display and front panel of the unit. ABBREVIATION DESCRIPTION FACTOR SCALING FACTOR - For A and B Inputs. Each input has a separate 5 digit dividing scale factor. DP F A DECIMAL POINT FOR FACTOR A - Enter location of decimal point for scaling Factor A by pressing the button under the digit where the decimal is desired. -
Page 13: Terminations
LOCK - This portion of the menu allows you to: 1) lock the program (presets are still accessible) 2) lock all (presets and program are locked). LC PRG LOCK PROGRAM - This will lock the program and allow the presets to be changed when the unit is in the lock mode. -
Page 14: Calculating Scale Factors
CALCULATING SCALE FACTORS There are two separate dividing scale factors, one for input "A" and one for input "B". The factor to enter is the number of pulses per the desired unit of measurement. The factor ranges from 0.0001 to 99999. The factor is the same for rate and count on input "A". -
Page 15: Programming Procedure
PROGRAMMING REMARKS PRESS DISPLAY STEP This section of the menu is used to set factor up the scaling factors for inputs A & B. SETTING PRGM SCALING This sets the decimal for factor A. FACTORS dp f a Press the arrow key under the digit where the decimal is desired. -
Page 16: Setting The Counter
PRESS DISPLAY REMARKS factor PRGM STEP This section of the menu sets up the counter count information. PRGM SETTING rst 0 Press the PRGM key to choose RST 0 (reset COUNTER to 0, count up) or SET PR (set to preset, count set pr down), press the ENTER key to enter the ENTER... -
Page 17: Setting The Rate
PRESS DISPLAY REMARKS STEP factor PRGM SETTING count THE RATE PRGM rate This section of the menu is used to set up the DPF75 PRGM rate information. & DPF78 Press the PRGM key to choose RPS (rate per ONLY second) or SCALE (RPM, RPH). Press ENTER scale to enter displayed choice. -
Page 18: Setting The Lock Code & Locking The Unit
PRESS DISPLAY REMARKS factor STEP PRGM count SETTING PRGM LOCK rate PRGM This section of the menu is used to set up the lockout type and code. PRGM LC PG = Locks program but presets and reset LC PG are accessible. LC ALL= Locks entire keypad. -
Page 19: Setting The Relays & Presets
PRESS DISPLAY REMARKS factor PRGM count STEP PRGM rate PRGM SETTING PRGM RELAYS relay This section sets up the relay information. PRGM a tot Press the PRGM key to choose A TOT (A This step will only assigned to total) or A RATE (A assigned to appear on DPF75 a rate rate). -
Page 20: Output Wiring
OUTPUT WIRING The following diagrams detail the connection of the relay and analog output options. Each relay consist of a form A contact (Normally Open). NPN transistor or Normally Closed contacts are available with solder jumpers (see Jumper Options). SOLENOID (Single Stage) Use Relay A (pins 1 &... -
Page 21: Analog Output Option
ANALOG OUTPUT OPTION Description: SWITCH 4: Calibrate (normally off) An optional 4-20mA (0-20mA) output has been added to the DPF70 Switch 4 is used for calibration. Calibration is done at the factory series. The output can be programmed to track rate or total. This and should not be needed (see SWITCH 1 to enter high and low feature is available by adding suffix A to the part number. -
Page 22: Rs232/Rs422 Serial Communications
INTERFACE CARD RS 232/422 OPERATION RS 232/422 SET-UP: "EVEN" (parity bit is logic 0 if total number of logic 1's in the first All serial communication mode changes must be done seven data bits is even), "MARK" (parity bit is always logic 1 through serial communications. - Page 23 SERIAL INPUT COMMANDS: The input impedance of RS232 is 3KΩ to 7KΩ worst case. The To get a unit on line you must address it by its device number. terminal addressing the unit must be capable of driving all This is done by typing DXX(S), XX= device number. The unit loads in the loop.
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Page 24: Rs232/Rs422 Wiring
RS232 / RS422 WIRING RS 232 COMPUTER HOOKUP: RECEIVE PIN (3) RS 232: When connecting the unit to a computer with RS 232 TRANSMIT PIN (2) communication, only three connections are needed. These ENTER LOCK PRE A PRE B VIEW PRGM GROUND PIN (5) connections are: Receive data, Transmit data and Ground. -
Page 25: Troubleshooting Guide
# 5 (input A). Each time pin #5 is touched counter A should count once. If not, call OMEGA. (this test will not work on units with quadrature input) Rate is displaying: r FFFFF. 1. The unit is trying to display a 1. - Page 26 NOTES...
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- Page 29 Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification.
- Page 30 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at www.omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...