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Omega DPF75 Calculator User Manual

1. O6 B INPUT Brown O7 IL to 19V 50mA OUT DC IN a 8 DC GROUND OFF ON ite O9 RESETINPUT OA TOZA Ed RATE COUNT 0106 to I4V 0 50mA OSS KUN TT SET ibis 11 A C INPUT gt 4 12 A C INPUT z FTB600 Flow Meters FLSC AMP Amplifier O1 COMMON 013 V 25 i B fas ez Connections 02 N O N C NPN d O14 I SINK3E gt 03 COMMON e BO 04 N O N C NPN 1 31 05 AINPUT C 2 2 06 BINPUT 3 1 OT 11 to 19V 50mA OUT DC IN TBIJITB2 O8 DC GROUND OFF ON X 5 HSC O9 RESET INPUT zoe E RAO FLSC AMP O106t014V 50mA OE RATE COUNT Flowmeter Amplifier O11 A C INPUT TA Turbine Mag Pickup O12 A C INPUT 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 is selected if set to preset is selected input A will subtract count down B The rate of input A 2 A add B If you have selected A add B mode pressing view shows A The net result of adding A and B inputs Pulses on input B will add count up Pulses on input A will add count up if reset to 0 is selected if set to preset is selected input A will subtract count down B The rate of input A 3 A sep B
2. The menu flow chart and the setup steps show the setup for the units with rate and total DPF75 When using a unit which has only count DPF76 or only rate DPF78 several menu items will not be displayed 20 sak y po ew oi k N AO k SOLUTIONS Recheck power wiring Use a different power supply or install a surge suppressor Recheck input wiring Recheck scale factors and factor calculations Replace transmitting device Recheck debounce filtering selection hi cps or lo cps To confirm set scale factors at one and connect a wire to pin 7 and touch it to pin 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 Check scaling factor if it is correct lower the number of significant figures Reprogram the unit be sure to enter a decimal enter one and remove it if a decimal is not desired Recheck programmed relay duration Recheck programmed relay activation mode If relay outputs are not being used set the relays for rate DPF75 only Set the relay durations to 00 0 The menu items which do not appear are not used for the models without the ratemeter DPF76 or without the counter DPF 78 Therefore disregard any menu items which appear on the flowchart and setup steps but do not appear on the unit s display NOTES 21 NOTES
3. Press the PRGM key to choose FPS rate per second or SCALE RPM RPH Press ENTER to enter displayed choice Press PRGM to choose 60 RPM or 3600 RPH Press ENTER to enter displayed choice This sets the normalizing averaging factor Press the arrow keys under the desired digits to change Press ENTER to enter displayed value This sets the number of significant figures to be displayed Press the arrow key under the digit to change Press ENTER to enter displayed value This sets the delay time 0 0 to 9 9 that the unit will look for valid input data before the display falls to 0 Press the arrow key under the digits to change Press ENTER to enter displayed value U JJ m wn p v J o v I o szi v I o v J a m Z m D E O o A ENTER DISPLAY FACEor Count cr ALE C LOL LodE Flashes followed by HEHEHE CodE Flashes followed by M uw Lol or uolol REMARKS This section of the menu is used to set up the lockout type and code LC PG Locks program but presets and reset are accessible LC ALL Locks entire keypad Press the PRGM button to toggle between choices Press ENTER to enter displayed choice After CODE flashes the display will show the existing lock code To change the code press the key under each digit to be changed Press ENTER to enter displayed value Key in the lock code s
4. Factor from 0 0001 to 99999 Separate factors may be entered for the 2 separate input channels CONTROL OUTPUTS Relays 2 each N O Relay 5 Amps120 240 VAC or 28 VDC N C relay contacts and NPN transistor output available with solder jumpers Transistor output is internally pulled up to 10 VDC through relay coil sinks from 10 VDC to 5 V 100 mA 5M 9MB Analog Output An optional 4 20mA 0 20mA output is available for the DPF70 series The output can be programmed to track rate or total This feature is available by adding suffix A to the part number Connections are via a 2 terminal pluggable screw connector Programming is accomplished by using the front panel in conjunction with rear dip switches Accuracy 50uA worst case Compliance Voltage 3 to 30 VDC non inductive RS232 RS422SERIAL INTERFACE If the serial interface option is supplied up to 99 units can be linked together The terminal addressing the unit must be capable of driving all loads in the loop Unit status and new set points can be communicated by serial communication Mode changes however must always be made on the front panel Data is transmitted at selected baud rates using standard seven bit ASCII characters and parity with two additional bits of Start and Stop to make up the standard ten bit character Data is received and transmitted over standard EIA RS232 or RS422 levels Each 10 bit character is made up of a start bit 7 bit ASC
5. If you have selected A sep B mode pressing view shows A The total counts of input A If reset to 0 is selected A counts up if set to preset is selected A will count down B The rate of input A C The total counts of input B B will always count up NOTE In A sep B mode B can be used in 3 ways 1 Asa separate totalizing counter 2 As a Batch Total Counter for input A 3 As a Grand Total Counter for input A NOTE All decimal points are inverted when B total is being displayed See below on how to modify for Batch Count and B as a Grand Total Counter OUTPUT JUMPER SELECTIONS MILLIVOLT INPUT OPTION JUMPER SELECTION FUNCTION MODIFICATION G A Fae j re ESZES el el Jul fol fo RE iS FAK E E J B RELAY CUT ayni Z N ll i N C OUTPUT AT D l C3 R1 R2 c4 Pe e ca m T A PRESET CUT cra G ise ase TRANSISTOR NPN AT A P1 REVB G B PRESET CUT ers OF lkol cel re TRANSISTOR NPN AT D CR1 CRG B AS BATCH ELECT JUMPER R9 20229 c COUNTER A SEP B H TO G R8 U3 R4 R5 R7 C8 ys CR3 B AS GRAND SELECT CONNECT Coo g TOTAL COUNTER ASEPB PULSES TO A amp B If the unit has the mill
6. Shop online at omega com CEOMEGA www omega com DPF75 DPF76 AND DPF78 SERIES Rate Totalizer M1090 071603 omega conm CEOMEGA OMEGAnet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Rud arm dy 1868 733 01 Karvin 8 TEL 420 0 69 6311899 FAX 420 0 69 6311114 Toll Free 0800 1 66342 e mail czech omega com 9 rue Denis Papin 78190 Trappes TEL 33 0 130 621 400 FAX 33 0 130 699 120 Toll Free in France 0800 4 06342 e ma
7. Unit will display transmit Count A DB sz sszesz s Unit will display transmit Count B DRaa Unit will display transmit rate A KAsase Unit will display K factor A T KA S XXXXX Unit will load K factor A with entered number KB iccceoned Unit will display K factor B t KB S XXXXx Unit will load K factor B with entered number PAigitexiasd Unit will display Preset A TPA S XXXXxX Unit will load Preset A with entered number P Biia Unit will display Preset B tPB S XXXXX Unit will load Preset B with entered number RAs Counter A will reset TRA S XXXXXX Unit will set Counter A to entered number RB ahun Counter B will reset t RB S XXXXXX Unit will reset Counter B to entered number THE UNIT WILL RECOGNIZE A DECIMAL IF ONE IS PLACED IN ANY OF THESE DATA VALUES tTHE UNIT WILL ONLY RECOGNIZE THE LAST FIVE DIGITS ENTERED SIX DIGITS FOR RA amp RB The following is an example of requests and responses Transmit from terminal Receive from unit s Space D5 s Unit 5 Activated DEVICE 5 PA s 12345 s PA PA 12345 PA KA s 1576 s KA KA 1576 KA KB s 6751 s KB KB 6751 KB RA s RB RETURN RA RB UNIT PRESETS AND A amp B K FACTORS ARE SET AND BOTH COUNTERS ARE RESET 12345 1576 6751 SERIAL INTERFACE OPERATION Data is received and transmitted over standard EIA RS232 or RS422 levels Each ten bit character is made up of a start bit seven bit ASCII code a parity bit and a stop bit Dev
8. 22 NOTES 23 USA WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service 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 This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes
9. Choose HI CPS as the input will exceed 40 Hz DPF 78 only VOW gt COUNTER STEP 2 DPF75 DPF76 A Reset to zero rST 0 will allow us to count up SET Pr counts down from the preset value B To read the total in whole gallons set the decimal point to the far right C Since you do not want to sum or take the difference of two inputs choose A SEP B DPF75 only D The frequency will exceed 40 Hz so you will need to select HI CPS LO CPS provides debounce filtering for contact closures RATE STEP 3 DPF75 DPF78 Select SCALE to engage the K factor Select 60 Normalize at 1 5 seconds Set 4 significant figures Set 02 sec delay moO gt LOCK STEP 4 DPF75 DPF76 amp DPF78 Before you finish this step write down your personal lock out code and store it in a safe place Here is where you select and enter the code and what will be locked To lock the meter you must wait until you are in the RUN mode Press the LOCK key use the arrows to display your code then Enter Repeat to unlock RELAYS STEP 5 DPF75 The DPF76 relays can only trigger on batch or total The DPF78 relays can only trigger on rate The DPF75 relays can be programmed to trigger on rate or total The relay setpoints for rate or total for all versions with relays are set with the PRE A and PRE B buttons When the relays are set for non latching the batch total will automatically reset at the batch preset The programmin
10. Connec tions are via a 2 terminal pluggable screw connector Connections see FIG 1 PIN13 supplies the 12 to 18 VDC to power the current loop PIN14 is the control sink driver Accuracy 50uA worst case Compliance Voltage 3 to 30 VDC non conductive Setup The optional analog output feature uses 4 dip switches on the back for setup These switches are used as follows SW1 View or change set low and or set high values SW2 Select output for rate or total SW3 Select 4 20mA or 0 20mA SW4 Calibrate the unit After the regular parameters shown in the programming flowchart have been set locate the 4 switches on the back of the unit see FIG 1 Switch Settings SWITCH 1 Enter Analog Low amp High normally off Switch 1 is used to load in the low 4mA or OmA and or the high 20mA output settings With power on set switch 1 ON up LOW SETTING is viewed or changed by pressing PRE A If the displayed value is correct press ENTER If not press buttons A through E to step to the desired value and press ENTER disre gard the display which will show the last count reading HIGH SETTING is viewed or changed by pressing PRE B If the displayed value is correct press ENTER If not press buttons A through E to step to desired value and press ENTER Return switch 1 to OFF down position PRE A and PRE B buttons now function to view or change relay trip values SWITCH 2 Select Count or Rate SW2 O
11. mounted is less than 125 of an inch thick the possibility exists that there will be some flexing Should this flexing occur the resulting deformation of the panel could cause a loss of the water tight seal In case this should occur the use of silicone or other sealant would be recommended This product is designed to the NEMA 4 rated However the fact that we are unable to control either the location in which the device is installed or the actual installation itself requires that the company s liability shall extend only to the repair or replacement of a defective product We are prepared to offer additional assistance in those special situations where normal mounting methods do not seem to satisfy the customers needs This assistance may be obtained by calling the factory and asking for Application Engineer ing FIG A E te DIMENSIONS 2 3925 gt 99 7 sija 4 245 A 4 437 re 0 587 107 8 A E M 112 7 14 91 a A 0 o 66 68 l p 1 8 66 68 r Pe JAT S CUSTOMER PANEL i BEZEL Panel Thickness 0 062 1 5 GASKET to 0 187 4 7 max Dimensions in inches mm 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
12. pages 3 and 4 The 12 VDC output can be used to power the FLSC AMP For the DPF75 a single input at pin 5 can be jumpered to pin 6 input B will be the grand total 4 The relay function can be altered by cutting and or soldering jumper traces as shown on page 5 5 There are two main operating modes RUN PROGRAM See page 6 for a summary In the RUN mode the view key allows you to toggle the display for rate batch and grand total The PRE A PRE B keys allow you to see and set the relay trigger points The lock key allows you to lock and unlock the keypad functions by entering the lock out code The PROGRAM mode must be accessed to set up the function of the display In this mode the RST key enters the displayed value into memory The PRGM key toggles the selections and the arrow keys bump that digit up to the next value or change the decimal point location PROGRAMMING EXAMPLE For this example let s assume you have an FP 5300 paddle wheel sensor an FP 5310 1 fitting the FLSC AMP pulse amplifier and DPF75 You want to see flow rate GPM batch and grand total The signal K factor is 183 66 pulses gallon from the manual for the FP 5300 flow sensor Here are the programming steps you will see starting on page 1 FACTOR STEP 1 DPF75 DPF76 amp DPF78 Set the decimal point for dPFA to allow two decimal places using the UP arrow key Enter the K factor next 183 66 using the arrow keys Do the same for dPFB DPF75 only
13. well as the rate display Ane b NET RESULT OF ADDING OR SUBTRACTING A amp B INPUTS ASEP b A amp B INPUTS ARE SEPARATE A amp B are not added or subtracted A Sub b A SUBTRACT B The number of scaled pulses from Input B are subtracted from the number of scaled pulses from Input A 99999 TO 999999 AAdd b A ADD B The number of scaled pulses from the A Input are added to the number of scaled pulses from the B Input Hi CPS HIGH COUNTS PER SECOND This sets the unit for high count speeds 0 9 99KHz LoLPS LOW COUNTS PER SECOND This sets the unit for contact debounce filtering 0 40Hz FALE PORTION OF MENU FOR SETTING RATE VARIABLES rP5 RATE PER SECOND The display will read in rate per second SCALE SCALING Allows unit to display rate per minute or rate per hour 60 DIVIDE K FACTOR BY 60 This sets the unit for rate per minute equal to 60 times rate per second 3600 DIVIDE K FACTOR BY 3600 This sets the unit for rate per hour equal to 3600 times rate per second nor HH NORMALIZING FACTOR Normalizes averages the data being received Higher settings provide more normalizing averaging for a more stable display Derived from the equation Old Data x NOR New Data NOR 1 Fi9ur SIGNIFICANT FIGURE This sets the amount 1 5 of meaningful figures the unit will display RATE DIS PLAY ONLY FOR EXAMPLE If 2 is set as the figure a rate of 273 45 will be displayed as 270 oL d DELAY FACTOR The amo
14. 5 GROUND 5 GROUND 6 STROBE 6 STROBE 7 N C 7 TRANSMIT B 8 N C 8 RECEIVE B 9 N C 9 N C RS 232 e NX STROBE PIN 6 12V PIN 7 E F BOTTOM BOARD TRANSMIT PIN 2 a F GROUND PIN 5 RS 422 e STROBE PIN 6 12V PIN 7 F BOTTOM BOARD TRANSMIT A PIN 2 g TRANSMIT B PIN 7 GROUND PIN 5 A PROBLEM Power is applied to unit but the display does not light Unit works but occasionally the display freezes or skips counts Input signal is connected but the unit does not count or display rate Rate is displaying r FFFFF Relays are not activating properly Counter resets before reaching 999999 Various menu items are not being displayed TROUBLESHOOTING GUIDE A 1 aPN 1 POSSIBLE CAUSES AC or DC power wiring is incorrect Line noise is affecting the processor due to a current spike or surge Input wiring is incorrect Scale factors are incorrect Transmitting device is defective Wrong debounce filtering selected Unit is defective The unit is trying to display a number which it can t too small or too large Line noise affected unit on power up Wrong relay duration 2 Relay set for wrong activation 1 i e count instead of rate Relay duration is set at a value other than 00 0 This causes the counter to auto reset at the preset
15. A TOT is selected It is the duration which the relay will remain energized 00 1 to 99 9 sec If 00 0 is selected the relay will latch until reset When the duration is not at 00 0 the unit will autorecycle RELAY B FOR TOTALIZER When this is selected relay B will activate when the net total has reached preset B A NET B Mode Relay B will activate when the total of input B has reached preset B A SEP B Mode RELAY B FOR RATE When this is selected relay B will activate when the rate of input A equals or exceeds preset B when in A NET B or A SEP B mode The relay will drop out when the rate of A falls below preset B RELAY B DURATION Follow same procedure as A TERMINATIONS SAVTA DO TIVNV w Analog Out Serial Port Setup Switches O 6 INPUT B O 7 11 19 V 50mA OUT DC IN REAR VIEW O 8 DC GROUND OFF ON O 9 RESET INPUT z I RA a OOOOOOOOOOO RATE COUNT O 10 6 14V 50mA 95 Ra SET O 11 A C INPUT on Zz O 12 A C INPUT 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 Because the units per second minute or hour are field programmable from the keypad scale factor calculations for the ra
16. DC max or 6 5 VA AC OUTPUT POWER AC powered units only 12 VDC 50 mA unregulated 10 50 TEMPERATURE Operating 32 F 0 C to 130 F 54 C Storage 40 F 40 C to 200 F 93 C DIMENSIONS See next page WEIGHT 2 Lbs 1 kg MEMORY EEPROM stores data for 10 years if power is lost INPUTS 3 High Impedance DC pulse input Open or 0 1 VDC low 4 30 VDC high 10 KOhm imp 10 KHz max speed Accepts simultaneous inputs 3M Mag Input Input A only accepts 30mV input 50 V max P P signals 10 KOhm imp 5 KHz max Input B 4 30V 3MB Mag Input Inputs A amp B accepts 30mV input 50 V max P P signals 10 KOhm imp 5 KHz max 5 4 30 V Count pulses on Input A 4 30 V Direction Control input level on Input B 30 mV Count pulses on Input A 50 V max P P 4 30 V Direction Control input level on Input B 9 Quadrature accepts 4 30 V pulses with 90 phase shift for direction detection Quadrature accepts 30 mV 50 V max P P pulses with 90 phase shift for direction detection NOTE The Mag inputs have filtering as follows up to 300hz 30mV 5KHz 25V to 50V max RESET Front Panel Resets displayed value and control output Remote 4 30 VDC negative edge resets COUNTER A and control output K FACTOR SCALING In the standard unit a fixed K Factor is used to convert the input pulses to engineering units The 5 digit K Factor dividers with decimal keyed into any position allow easy direct entry of any K
17. EGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEE
18. FF down Analog output follows rate SW2 ON up Analog output follows count SWITCH 3 Select 4 20mA or 0 20mA SW3 OFF down Selects 4 20mA output range SW3 ON up Selects 0 20mA output range 16 SWITCH 4 Calibrate normally off Switch 4 is used for calibration Calibration is done at the factory and should not be needed see SWITCH 1 to enter high and low values If recalibration is desired a calibrated 20mA ammeter with 1uA resolution is needed Attach the lead of the meter to pin 13 and the lead to pin 14 Set switch 4 ON up The unit will output approximately 20 000mA and a decimal will light in the third position Read the output using the ammeter Press PRE A If the display is the same as the ammeter reading press ENTER If not press buttons A through E to step to ammeter reading and ENTER Disregard display which now shows the last count read ing with decimal point in third position Return switch 4 to OFF down position RS232 amp RS422 Operation When the unit is suppled with RS232 or RS422 the analog output low and high settings can be accessed and changed through the serial port The codes are as follows AL Unit will display transmit analog out low value AL S XXXXX Unit will load analog out low with entered number S space AH Unit will display transmit analog out high value AH S XXXXxX Unit will load analog out high with entered number S space FIG 1 Anal
19. II code parity bit and stop bit Unit number baud rate and parity are entered in the Program Setting set up mode and remain in memory even if power is off Note that the input impedance of RS232 is 3K or 7K Ohm worst case The terminal addressing the unit must be capable of driving all loads in the loop RS422 input impedance is much higher and there is usually no problem driving 25 units Unit serial transmit line remains in a high impedance OFF state until addressed PRESETS Two control outputs are provided To set relay values press menu button until Relay appears on the display the A and B outputs can be assigned to the ratemeter high low one preset for rate and one for total or two presets 2 stage shut off on the A and B counters A 5 digit value can be entered for both presets and the decimal point location is the same as the counter The outputs can be set to energize from 0 1 to 99 9 seconds or latch 0 0 Ifa value other than 0 0 is entered the counters will auto reset at the preset In the A B or A B versions the relays will be assigned to either net total or A rate LOCKOUT Unauthorized front panel changes can be prevented by entering a user selected 5 digit code in the LOC mode The front panel can be completely locked out or the presets can remain accessible RATEMETER Accurate to 4 1 2 digits 1 display digit The rate meter can be programmed to accept almost any number of pulses p
20. RING INC Copyright 2002 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC Where Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE L Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors 4 Infrared Pyrometers PRESSURE STRAIN AND FORCE WA Transducers amp Strain Gages lA Load Cells amp Pressure Gages 4 Displacement Transducers 4 Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers u Air Velocity Indicators ur Turbine Paddlewheel Systems lA Totalizers amp Batch Controllers pH CONDUCTIVITY A pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters 4 Controllers Calibrators Simulators amp Pumps LY Industrial pH amp Conductivity Equipment DATA ACQUISITION lA Data Acquisition amp Engineering Software ur Communications Based Acquisition Systems WA Plug in Cards for Apple IBM amp Compatibles 4 Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable 4 Cartridge am
21. displayed value PRGM FACTOR e g g m m ENTER S Mm E o am PRGM O n E ae Z3600 760 E 1 FiguR RUN MODE ADD PRGM ENTER RATE METER DPF78 ONLY ones RUN MODE RUN MODE 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 FALE or SCALING FACTOR For A and B Inputs Each input has a separate 5 digit dividing scale factor dP FA 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 dP Fb DECIMAL POINT FOR FACTOR B Enter location of decimal point for scaling Factor B by pressing the button under the digit where the decimal is desired Count PORTION OF MENU FOR SETTING COUNTER VARIABLES cSt 0 RESET TO 0 Counter will reset to 0 Input A will count up from 0 Input B will subtract count down in A Sub B mode Input B will add count up in A Add B mode SEE Pr SET TO PRESET Counter will reset to preset A Input A will count down from preset A Input B will count up add in A add B mode and input B will count down subtract in A sub B mode dP Lot DECIMAL POINT LOCATION Enter desired location of decimal by pushing the button under the digit where the decimal is desired Changing the decimal will change the decimal location in the A amp B counters as
22. dvdinuts civ vnsvee dha ad aitelatiens a a aa 4 TYPICAL SENSOR HOOKUP ssecicscctisctesitdeentaree sate E a R eases Gatling 4 TYPICAL QUADRATURE HOOKUP sees ss continents eeecn aii ccnnisatssetirnaanennies anveaiaaseces 4 WHAT CAN YOU VIEW sssccnitere art aeteivnseasebetdeinan visi dilate Gein inatia ales 5 OUTPUT JUMPER SELECTIONS se sz cece eee eeeeene tenes eeaeeseeeseaeessaeseseeseaeeeseeseaeesseeeeaees 5 MILLIVOLT INPUT OPTION JUMPER SELECTIONS iss se g se kesz esz s kegyet esse eeneeteneeeeeeteneeeas 5 OPERATING FRONT PANEL oiccecnicccesinsacoriiecccntaiicstieee asiinteadiivnnidnaiesnnunteecers 6 PROGRAMMING FLOW CHART vsccstsstrevseaiecin nee eaan ea nia 6 PROGRAM CODES amp DESCRIPTIONS 0 0 eee eene eens eeneeteeeeeeteaeesseeeeaeesneeeeeenaas 7 TERMINA TONS cesigis E esses fhcucsec a aa 8 CALCULATING SCALE FACTORS iiicirisiisnaii canre aira 9 PROGRAMMING PROCEDURE sissisotaan e aa a a a Ea 10 SETTING SCALING FACTORS a vzss s zeszss esz z s menznzzk kea t m g eka na ks z aze annaks arinaa 10 SETTING THE COUNTER cerimonia a ds k sa nt st 11 SETTING THE RATE ivi cdietsies anaes sanai aaia adi 12 SETTING THE LOCK CODE amp LOCKING THE UNIT cee ceeseeseeeeeteeeseneeeeeeeneeneaes 13 SETTING THE RELAYS amp PRESETS 00 0 cececeeeseeeneeseeeeneeteaeeseeeseaeeseeseaeeseeeeeeenaes 14 OUTPUT WIRING einiino ends as a aa a tee atextenades 15 ANALOG OUTPUT OPTION ja cccisisdis consists etiansecen
23. ee programming step 4 by pressing the keys under the digits to be changed Press the ENTER key to enter the displayed code After the code is entered the unit will display LOC unit is locked or UN LOC unit is un locked This message will be displayed for approximately 3 seconds before the unit returns to the run mode PRESS DISPLAY REMARKS im FACE or Count PRGM FREE _ LOL PRGM cELAS This section sets up the relay information PRGM Atot Press the PRGM key to choose A TOT A This adept or assigned to total or A RATE A assigned to a ENTER A AcE rate Press ENTER when the desired choice is displayed This is the duration 1 to 99 9 sec that relay A Ht d A will remain energized If 00 0 is selected ENTER the relay will latch until reset otot Press the PRGM key to choose B TOT B This step oe vail or assigned to total or B RATE B assigned to RAE ENTER bc Abe rate Press ENTER when the desired choice is displayed This is the duration 1 to 99 9 sec that relay o HHH B will remain energized If 00 0 is selected ENTER the relay will latch until reset ai Pre A PRE A Preset A Final Preset The set point giles Followed by at which output A will trigger If the displayed PRESETS PREA last PRE A value is not the desired preset press the entered key s under the digit to be changed Preb PRE B Preset B Prewarn The set point at Followed by which output B
24. er unit of measurement sample from 2 to 24 seconds maximum and auto range up to 5 digits of significant information In the RPS mode the ratemeter displays in units per second and in the scale mode units per hour or per minute The unit will display the rate of the A Input only COUNTER The two 6 digit counters can count at 10Khz speed Each can have a 5 digit dividing scale factor The counter advances on the positive edge of each pulse Count up or down modes available as are quadrature inputs from encoders for position or length mea surement The unit can be programmed to view the net value of A B or A B or A and B as separate counters 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 Insert the unit into the panel As shown in FIG A slide the brackets up the groove to press against the back of the panel Insert screws into rear of brackets and tighten them evenly and alternately Do not over tighten A normal level of torque is required Maximum torque should be 3 pounds This product is designed to be panel mounted and is NEMA 4 rated if proper mounting procedures are followed and the required and supplied hardware is correctly used If the panel in which the unit is
25. g is now com plete Here is what you will see with 100 Hz input frequency equal to 32 66 GPM flow rate The rate is r 32 66 The batch will continuously increase 480 the grand total will also continuously increase 4 8 0 Notice that the decimals points for the grand total are inverted all are lit except where the decimal point is actually located To read total gallons to a tenth of a gallon in Step 2 change the dPLoC to allow one decimal place XXX X for the counter But this will cause a shift in the rate display so you will also need to shift the K factor in Step 1 Change the K factor to 18 366 to read the correct units Now the 100 Hz signal will yield r 32 66 480 0 4 8 00 DESCRIPTION amp SPECIFICATIONS DESCRIPTION The OMEGA DPF70 is a dual input channel A and B counter ratemeter each with its own 5 digit dividing scale factor The two 5 AMP preset relay outputs can be programmed by the user to apply to the A total counter the A ratemeter or the B counter or the net total of A and B inputs The user can view the Net Total of A B the Net Total of A B the rate of A or A and B counters separately The DPF75 version shows rate and total as de scribed above The DPF76 is exclusively a counter and the DPF78 is exclusively a ratemeter SPECIFICATIONS DISPLAY 6 digit 0 55 High LED INPUT POWER 110 VAC 15 or 11 to 15 VDC 220 VAC 15 or 11 to 15 VDC CURRENT 250 mA
26. ice number baud rate parity and strobe list are entered in the program setup mode and will remain in memory even if power is lost The input impedance of RS232 is 3KQ to 7KQ worst case The terminal addressing the unit must be capable of driving all loads in the loop The input impedance of RS422 is much higher and there should be no problem driving as many as 99 units The transmit line remains in a high impedance off state until addressed Only one unit is to be on line at a time More than one unit on line could damage the unit or destroy the transmitted data When the unit is active on line it will operate in a full duplex echo back mode so that data sent from the terminal will be transmitted back for verification When the unit is on line use the proper serial transmit commands to request data or set a new value Up to 80 characters of data can be linked together and transmitted to the unit in a string as long as there is a space between the commands If an error is made a correction can be made by back spacing and retyping correct data before the return enter is sent Once a return enter is sent the unit begins processing the data and will transmit the requested data on a non priority basis over the data transmit line A keypad entry or incoming data will halt the data communication cycle Therefore there should be a pause after data is requested to insure that all data has been transmitted before making another reques
27. ight PRGM This is the scaling factor for input B To change press the arrow key under the digit s to change Press ENTER to enter the displayed value STEP 2 SETTING DPF75 DPF76 ONLY E ENTER E ENTER E ENTER ENTER DISPLAY FAC ar Count ri or SEt Pr dP Low Annet b or ASEPb ASubb or A Adob HEPS or LoLF5 REMARKS This section of the menu sets up the counter information Press the PRGM key to choose RST 0 reset to 0 count up or SET PR setto preset count down press the ENTER key to enter the displayed choice This sets the decimal location for the A 8 B counters Press the arrow key under the desired digit location To clear the decimal press the arrow key furthest to the right Press the ENTER key to enter the displayed loca tion Press the program key to choose A NET B add or subtract A 8 B or A SEP B view A 8 B as separate counters Press the ENTER key to enter the displayed choice This section will only appear if A NET B was selected Choose A SUB B A subtract B or A ADD B Press the ENTER key to enter the displayed choice Press the PRGM key to choose HIGH CPS 0 9 99KHz or LOW CPS 0 40Hz Press the ENTER key to enter the displayed choice STEP 3 SETTING THE RATE DPF75 DPF78 amp ONLY ENTER DISPLAY nor FiSur REMARKS This section of the menu is used to set up the rate information
28. il sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega dl One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 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 The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications TABLE OF CONTENTS QUICK SETUP GUIDE irern O a ees osete semaines ii SPECIFICATIONS iiciin anaiari n dennis iin nace 1 HOWTO MOUNT THE SONIT ccc tress cess tetavnesseusnedesteweratada enn vation veily Eia 2 WIRING oeiia ionni a EEA EE NEE EEE E a a E EE 3 UP DOWN CONTROL AND QUADRATURE INPUTS sseeeeeererrerrerrrrirerrerrerrrersren 3 CONNECTING AC DC POWER wiisiecccncisccciinvai cst ceri cenit cenitiaeentean tens 4 WIRING CONSIDERATIONS esziesies cetecivacen deb let
29. ivolt input bd 20229 A amp B inputs can be BOTTOM VIEW AT TERMINAL separately solder jumper programmed to accept either a low milli volt or 4 30 V input Each unit shipped is programmed according to part number If solder jumpers are made the part number should be modified to reflect the changes made C CLOSE O OPEN 4 30V INPUT J1 O J2 C J3 O J4 O J5 C J6 O Millivolt INPUT J1 C J2 O J3 C J4 C J5 O J6 C Nl l 1211109 8 765 43 2 1 The unit must be removed from the case to access jumpers C amp F all other jumpers can be accessed by removing the plastic extender InputB NOTE All three pads at jumpers 2 and 4 are connected OPERATING THE FRONT PANEL Press to ENTERin Press to enter Press to view or Press to viewor Press to alternately Press to cycle the programming LOCK code to change PresetA change PresetB view ARate amp Net through mode LOCK and Total or A Rate A PROGRAM Press to RESET UNLOCK front Total amp B Total choices Press to step through set up choices in pro Use keys A B C D amp E to advance digits during a numeric entry sequence gram mode PROGRAMMING FLOWCHART displayed total in panel operating mode NOTE Several programming selections will not appear with DPF76 and DPF78 units itn ial PRGM Press this key to step through menu choices RST ENTER Start Here Press this key to enter
30. 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 In some environments voltage spikes of over 100 volts even 1000 volts can occur When common to a power line driving motors voltage fluctuations can be extreme and rapid Lines driving DC or AC solenoids relays or actuators can also cause problems Four sources of noise can occur 1 AC power line noise If the unit cannot be connected to a clean power source an inductive load suppressing device MOV as GE V130LA1 or Resistor Capacitor as Paktron tt 2 uf 220 ohm 400V can be installed Although locating the suppressor across the AC supply at the unit should help best results are obtained by connecting the suppressor across the leads of the load at the device causing the spike 2 Input line noise The noise is carried on the input and D C ground lines Make sure the input wires are never run into the unit in a bundle with power input lines Also keep these input lines isolated from inductive lines from devices drawing heavy loads If there is a possibility of electrical noise we recommend using shielded cable with the shield being hooked to the D C ground terminal on the instrument and to earth at one point in the circuit preferably at the D C ground terminal of the unit 3 Output lines The unit has two relay outputs When these outputs are used to run external relays or solenoid
31. ll print ENTER STROBE LIST DO NOT DISPLAY O0 DISPLAY 1 The unit will prompt you PRESET A lt DISPLAY gt PRESET B lt DISPLAY gt K FACTOR A lt DISPLAY gt K FACTOR B lt DISPLAY gt RATE lt DISPLAY gt COUNT A lt DISPLAY gt COUNT B lt DISPLAY gt If the above choices are entered when the strobe line is triggered 3 30V positive pulse the unit will transmit DEVICE 1 PA XXXXX PB XXXXX KA XXXXX KB XXXXX DR XXXXXX DA XXXXXX DB XXXXXX SEE COMMANDS BELOW FOR DESCRIPTION OF COM MAND CODES Each time the strobe line gets triggered the unit will transmit this data unless the program mode is entered and the strobe list altered After these four items have been entered they will remain unaltered unless the program mode is entered again and the values changed The unit is now set and must be addressed by its device number to come on line again SERIAL INPUT COMMANDS To get a unit on line you must address it by its device number This is done by typing DXX S XX device number The unit comes on line and echoes back DEVICE XX Insure that DEVICE XX is received before requests are sent The unit is now ready to receive a command or string of commands separated by a space A carriage return enter will enter the commands and processing of requests begins The carriage return Hex Code D puts the unit off line after data is processed COMMANDS EPen Unit will enter program mode DA
32. logic 0 if total number of logic 1 s in the first seven data bits is odd EVEN parity bit is logic 0 if total number of logic 1 s inthe first seven data bits is even MARK parity bit is always logic 1 High Mark or SPACE parity bit is always logic 0 Low Space If a MARK parity is chosen it will appear that two stop bits are used Use the MARK parity with terminals using parity OFF or NONE These terminals ignore the parity The unit does not check the parity but does transmit the parity chosen When setting the parity the unit will print PARITIES MARK 0 SPACE 1 EVEN 2 ODD 3 Then the unit will prompt you PARITY lt MARK gt If this is the desired parity press return ENTER if it isn t enter the number of the desired parity then press return ENTER STROBE LIST The serial interface card is also equipped with a strobe line When the strobe line is triggered a chosen set of data will be transmitted to be displayed or printed The selections for the display list are entered in the program mode Enter 1 to add selections to the list and enter 0 to delete selections from the list The seven available items for the strobe display list are 1 Preset A 2 Preset B 3 K Factor A 4 K Factor B 5 Rate of A 6 Count A 7 Count B In the A net B mode Count A will display the Net Count and Count B is an invalid command and the unit will transmit useless data When setting the strobe list the unit wi
33. nntisecsd tives cenviairewenevtiid sci evtieascnntanesyes 16 RS232 RS422 SERIAL COMMUNICATIONS 0 0 eee eeeeene ene tenee testes ee t t et t ts 17 RS232 RS422 WIRING s ss szt cece esceeeeeceneeteeeeeeeseaeeeaeeseaeeeaaeseaeessaeseaeeeeaeseaeeseaeesaeeseatenaeees 19 TROUBLESHOOTING GUIDE sirist istodi is ius niaaa aasa 20 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 Note any evidence of rough handling in transit Immediately report any damage to the shipping agent NOTE The carrier will not honor any claims unless all shipping material is saved for their examination After examining and removing contents save packing material and carton in the event reshipment is necessary QUICK SET UP GUIDE 1 Determine what function the panel meter is to perform e g rate display with alarm batch control totalizer etc 2 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 3 The wiring is explained on
34. og Out Serial Port Setup Switches oeeo AEE REAR VIEW OOOOOOOOOOO Typical Wiring ton RELAYA COM RELAYA N O RELAYB COM RELAYB N O INPUTA INPUT B 11 to 19V 50mA OUT DC IN DC GROUND RESET INPUT 6 to 14V 50mA 110 220 VAC 110 220 VAC DAIADNHBWNe F 11 to 19V OUT ANALOG OUT SINK STRIP CHART RECORDER INTERFACE CARD RS 232 422 OPERATION RS 232 422 SET UP All serial communication mode changes must be done through serial communications Mode changes cannot be done through the front panel To initialize the unit place a jumper between pin 7 12V bottom board and pin 1 init DB 9 connector on initial power up The unit defaults to 300 baud rate MARK parity and device number 01 To enter the program mode you must set your terminal for 300 baud rate and MARK parity Next type D1 s s space bar The unit will echo back DEVICE 1 Now type EP enter program and a carriage return ENTER The unit will echo back PROGRAM SETTING You are now in the program ming mode SETUP PROCEDURE The following sections consist of the communications setup options as they appear in the menu If you wish to exit the program mode at any time you can hit the escape key Hex Code 1B and the unit will save the changes made but not effect the remaining data values When each section of the setup menu is displayed the current da
35. own The direction input must precede the count input by 1 msec when the unit is set for low CPS and 1 usec when set for high CPS CONNECTING AC DC POWER NOTE Connect power only after other connections are finished Do not touch the live AC power terminals The unit has been designed with an isolated AC input Thus polarity is not a concern for the AC input The chassis is plastic therefore earth ground is not used 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 amp FTB4607 Water Meters DO NOT USE PIN 7 WITH THESE METERS gt O1 COMMON g O13 V ez Connections 02 N O N C NPN OM4 ISINKZE Cust lied 1 4 Watt 20009 COMMON t 58 ustomer supplie att 2 approximateley resistor 04 N O N C NPN 5 AINPUT 06 B INPUT Stel O7 11 to 19V 50mA OUT DC IN as 8 DC GROUND OFF ON rown O9 RESET INPUT Z AA Stk amal Irm RATE COUNT 10 6 to 14V 50mA Rare ESET D 11 A C INPUT Fa z 12 A C INPUT FTB4605 amp FTB4607 Water Meters FTB600 Series Flow Meters DO NOT USE PIN 7 WITH THESE METERS O1 COMMON 013 V 9 gt 22 02 N O N C NPN O14 1 SINK 35 H Connections 03 COMMON O4 N O N C NPN al r gt O5 AINPUT SAVITAN
36. p Strip Heaters 4 Immersion amp Band Heaters 4 Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL lA Metering z Control Instrumentation A Refractometers u Pumps amp Tubing A Air Soil amp Water Monitors 4 Industrial Water amp Wastewater Treatment ur pH Conductivity amp Dissolved Oxygen Instruments
37. r gallon divide 52 6 by 3 785 to find the number of pulses per liter 52 6 3 785 13 897 Enter 13 789 as the scale factor so the display will read in liters An aluminum sheeting plant has a cut to length application to customer specification A ten pulse per revolution encoder with a 12 wheel is used to sense The travel of aluminum sheets is in inches Thus after 10 pulses you want 12 to appear on the display Thus 10 12 8333 Enter 8333 as your scale factor STEP 1 SETTING SCALING FACTORS THIS SECTION WILL ONLY APPEAR IN THE RATE METER ONLY VERSION DPF78 ENTER _ ENTER _ ENTER _ ENTER PROGRAMMING DISPLAY HHHHH HHHHH REMARKS This section of the menu is used to set up the scaling factors for inputs A amp B This sets the decimal for factor A Press the arrow key under the digit where the decimal is desired To clear the decimal press the arrow key fur thest to the right PRGM This is the scaling factor for input A To change press the arrow key under the digit s to change Press ENTER to enter the displayed value This section will only appear in the RATE only version Press the PRGM key to choose HIGH CPS 0 9 99KHz or LOW CPS 0 40Hz Press the ENTER key to enter the displayed choice This sets the decimal for factor B Press the arrow key under the digit where the decimal is desired To clear the decimal press the arrow key fur thest to the r
38. responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OM
39. s spikes can be generated upon activation This noise can spread through the instrument causing operating problems If the source is a D C operated device a general purpose diode IN4004 placed across the solenoid prevents electrical noise spikes Connect the cathode banded side to the more positive side of the coil If the source is an A C operated device use a MOV or Resistor Capacitor across the coil 4 12 VDC output supply Noise can be generated on the 12 VDC output supply if it is used to drive inductive loads or if the current draw exceeds 50 mA Insure that all inductive loads have a diode such as IN4004 across the coil and that the current does not exceed 50 mA UP DOWN CONTROL AND QUADRATURE INPUTS QUADRATURE INPUT When programming the counter section for quadrature input you must set the unit for A net B and A sub B see step 2 in programming section This insures proper operation The rate can only be viewed in one direction If the unit is a ratemeter only DPF 78 connect only one of the quadrature channels to Input A pin 5 UP DOWN CONTROL When using the up down control option Input A pin 5 is the count input and Input B pin 6 is the up down control direction input The counter must be set for A net B and A sub B see step 2 in programming section When the direction input is high 4 30VDC the count inputs will count up when the direction input is low open or less than 1VDC the count inputs will count d
40. t or addressing another unit If the unit is not busy it should not take longer than 300 msec to process each request To find the cycle time to process and transmit a request calculate the bit transmit time by using this formula 1 baud rate x 80 005 x number of requests made This time will be extended if the unit must service the front keypad If transmission has not started within two seconds after data is requested it can be assumed that there is a problem The unit transmits a carriage return and line feed after each data value Any new commu nication must be started with DXX S device number and space RS232 RS422 IBM PC INTERFACE The following program is for IBM basic to set up RS232 RS422 on serial port 1 at 300 baud Run this program after connecting the serial interface connections 10 SCREEN 0 0 WIDTH 80 20 CLS CLOSE 30 OPEN COM1 300 n 7 1 CS DS CD AS 1 40 ON ERROR GOTO 110 50 B INKEY 60 IF B lt gt THEN PRINT 1 B 70 IF EOF 1 THEN 50 80 A INPUT LOC 1 1 90 PRINT A 100 GOTO 50 110 RESUME 18 RS232 RS422 WIRING COMPUTER HOOKUP RS 232 When connecting the unit to a computer with RS 232 communication only three connections are needed These connections are Receive data Transmit data and Ground The connections should be made as follows DP 9 CONNECTOR Transmit data pin 2 Receive data pin 3 Ground pin 5 COMPUTER Receive data Transmit data Gro
41. t recorder make connections as follows STRIP CHART RECORDER 1 COMMON gt z O13 V 25 O 2 N O N C NPN Sloi4 ISINK ZE O3 COMMON x 58 d O 5 INPUTA Jj O 6 INPUT B ao naa 12V W GND 7 11 19 V 50mA OUT DC IN 8 DC GROUND OFF ON laa puLsEoUTpUT Se S O9 RESETINPUT Sata on Soma ailal RATE COUNT J h h O10 6 14V 50mA RUN SET TURBINE FLOWMETER T 11 A C INPUT gt 7 d 12 A C INPUT 2 ALARMS The relays can be used to trigger alarms which warn the operator that a batch is complete or the rate has exceeded a set speed The outputs are programmable to be assigned for rate or count When assigned to the count the relays can have a user selectable on time duration or can be latched until reset m O1 COMMON 013 V fi 2 NONGA E O14 SINKS LIGHT 3 COMMON x wi 3 4 O 4 N O N C NPN O5 INPUTA 0 6 INPUTB X O7 11 19 V 50mA OUT DC IN DOTVNV BELL O 8 DC GROUND OFF ON O9 RESETINPUT Z 5 RUN 1 CAL O 10 6 14V 50mA Q RATE COUNT D c 4 O 11 A C INPUT a O 12 A C INPUT 15 ANALOG OUTPUT OPTION Description An optional 4 20mA 0 20mA output has been added to the DPF70 series The output can be programmed to track rate or total This feature is available by adding suffix A to the part number
42. ta will appear in the lt gt signs If you wish to change the data type in the number of the desired choice and press return ENTER If you wish to keep the current data simply press return DEVICE NUMBER Each unit in the hook up must be assigned it s own device number 1 to 99 Zero is reserved for a dedicated hook up to only one terminal and it s transmit output line remains in an on active state The device number is entered in the program mode The unit will prompt you DEVICE lt XX gt If XX is the desired device number press return ENTER if not enter the desired number after the question mark and press return ENTER BAUD RATE The baud rate is the speed at which data is transmitted expressed in bits per second Baud rates of 300 600 1200 2400 4800 or 9600 are available When in the baud rate section of the menu the unit will list BAUD RATES 1 300 2 600 3 1200 4 2400 5 4800 6 9600 then prompt you BAUD RATE lt 300 gt Press return ENTER if this is the desired baud rate or enter the assigned number of one of the six possible baud rates If an invalid baud rate is entered the unit will prompt you to choose another baud rate This will occur until a valid baud rate is entered or escape is pressed PARITY Parity is a bit of information that is inserted before the stop bit and is used to help check if the transmission is correct When setting the parity you may select ODD parity bit is
43. temeter are easy Here are some examples SCALING FACTOR EXAMPLES BATCHING You want to count the number of batches 10 boxes each being loaded onto a pallet Solution Dial in a scale factor of 10 UNIT COUNTING You pick up a notch on a paper roll 1 pulse per shaft revolution Each revolution equals 3 feet To find the number of pulses per foot simply divide 1 pulse by 3 feet 1 3 3333 Solution One foot equals 0 3333 pulses enter this as the scale factor and the display will read in feet RATE The shaft of a motor has a flywheel with 10 spokes A prox switch is mounted to sense 10 pulses per revolution RPM of the shaft is the desired readout Solution Enter a Factor of 10 and for every 10 pulses 1 will appear on the display Set rate per second minute or hour as desired A conveyor carrying bottles must be controlled for bottle speed For each revolution of the front roller three bottles travel by Thus one revolution equals 3 bottles A wheel with seven spokes is mounted on the roller The user can t sense bottles because they are traveling through a washer so a sensor is placed at the roller sensing seven pulses per revolution of the shaft which equals 3 bottles per revolution To calculate the scale factor 7 ppr 3 bottles 2 3333 scale divider Set rate per second minute or hour as desired A flow meter is generating 52 6 pulses per gallon The desired readout is in liters Since there are 3 785 liters pe
44. und RS 422 When connecting the unit to a computer with RS 422 five connections are needed These connections are Re ceive data A Receive data B Transmit data A Transmit data B and Ground The connections should be made as follows DP 9 CONNECTOR Transmit data A pin 2 Transmit data B pin 7 Receive data A pin 3 Receive data B pin 8 Ground pin 5 COMPUTER Receive data A Receive data B Transmit data A Transmit data B Ground PRINTER HOOKUP When connecting the unit to a printer you must first program the desired baud rate parity and strobe list with a computer After the unitis programmed it can be connected to the printer Connect the transmit line s of the unit to the receive line s of the printer and be sure that both devices have common grounds When the strobe line is triggered the unit will transmit the selected strobe list which you had previously pro grammed RS 232 RECEIVE PIN 3 TRANSMIT PIN 2 GROUND PIN 5 RS 422 RECEIVE A PIN 3 RECEIVE B PIN 8 TRANSMIT A PIN 2 gt ezis l TRANSMIT B PIN 7 GROUND PIN 5 RS 232 RS 422 1 INITIALIZE 1 INITIALIZE 2 TRANSMIT 2 TRANSMIT A 3 RECEIVE 3 RECEIVE A 4 N C 4 N C
45. unt of time 02 to 24 sec the unit will look for valid data before the display defaults to zero RATE DISPLAY ONLY r m rI LOPS rELAY A tat A rAtE AHHH b tot b rAtE DH O 1 COMMON ss O13 V O 2 N O N C NPN O14 I SNK 3 O 3 COMMON z O 4 N O N C NPN 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 LOCK PROGRAM This will lock the program and allow the presets to be changed when the unit is in the lock mode LOCK ALL This will lock the program and the presets when the unit is in the locked mode The presets can be viewed but not changed LOCK CODE This message code will flash on display for approximately 3 seconds It will be followed by a 5 digit number xxxxx The number you enter here will be the code to lock and unlock the unit RELAY This portion of the menu allows you to set your relay operation variables RELAY A FOR TOTALIZER When this is selected relay A will activate when the net total has reached Preset A A NET B Mode Relay A will activate when the total of input A reaches preset A A SEP B Mode RELAY A FOR RATE When this is selected relay A will activate when the Rate of input A equals or exceeds preset A when in A NET B or A SEP B mode The relay will drop out when the rate of A falls below preset A RELAY A DURATION This message will appear when
46. will trigger If the displayed PREB last PRE A value is not the desired preset press the entered key s under the digit to be changed 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 amp 2 for single stage preset When the count or rate Selectable reaches Preset A Relay A will energize When Relay A closes current passes through the solenoid for activation When operating AC solenoids we recommend the use of an MOV to reduce inductive kickback use a diode for DC solenoids O 1 COMMON O13 V 23 O 2 N O N C NPN amp O14 I SNK RE O3 COMMON E S O 4 N O N C NPN BLK 05 INPUT A SOLENOID Japy O6 INPUTB HON O7 11 19 V 50mA OUT DC IN Pe e NBLU o 8 DC GROUND OFF ON MOV a hae O 9 RESET INPUT Z RUN CAL recommended O10 6 14V 50mA SPS RUN SET O 11 AC INPUT H O 12 A C INPUT ANALOG OUTPUT The analog output can be selected to output 4 20 mA or 0 20 mA and can be selected to track the rate or count Pin 13 supplies 12 to 18V to power the current loop Pin 14 supplies the current sinking driver When connecting a strip char

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