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Loop Leader PD6620 Series Loop-Powered Flow Rate/Totalizers

Instruction Manual

Disclaimer

The information contained in this document is

subject to change without notice. Precision Digital

Corporation makes no representations or warranties

with respect to the contents hereof; and specifically

disclaims any implied warranties of merchantability or

fitness for a particular purpose.

• Read complete instructions prior to installation and

operation of the meter.

• Risk of electric shock or personal injury.
• This product is not recommended for life support

applications or applications where malfunctioning

could result in personal injury or property loss.

Anyone using this product for such applications

does so at his/her own risk. Precision Digital

Corporation shall not be held liable for damages

resulting from such improper use.

WARNING

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

Limited Warranty

Precision Digital Corporation warrants this product

against defects in material or workmanship for the

specified period under “Specifications” from the date

of shipment from the factory. Precision Digital’s

liability under this limited warranty shall not exceed

the purchase value, repair, or replacement of the

defective unit. See Warranty Information and Terms

& Conditions on www.predig.com for complete details.

Registered Trademarks

NORYL

and LEXAN

are registered trademarks of

SABIC Innovative Plastics. All other trademarks

mentioned in this document are the property of their

respective owners.

© 2021 Precision Digital Corporation.

Introduction

These loop-powered 1/8 DIN flow rate/totalizers can

be installed virtually anywhere to provide convenient

and informative display of flow rate and total from a

4-20 mA signal. One of the most convenient features

of these instruments is their ability to display both flow

rate and total at the same time. For instance, flow rate

is typically displayed on the 5-digit alphanumeric top

line and flow total or grand total is typically displayed

on the 8-digit alphanumeric bottom line. Both display

lines use 14-segment, alphanumeric characters for

clear indication of tags, units, or alarm messages.
Further enhancing the display on these instruments is

a 20-segment bargraph available on the PD6624 and

PD6628 that also includes a numeric value of the

percentage the bargraph represents.
These flow rate/totalizers can be installed virtually

anywhere because they get their power from the

4-20 mA loop and therefore require no separate

power source. And they only drop 1.5 V (4.5 V with

backlight), so they add very little burden to the loop.

Additional features that allow these instruments to be

installed virtually anywhere include a NEMA 4X, IP65

front panel, an operating temperature range of

-40 to 167°F (-40 to 75°C) (for safe area products),

conformally coated PCBs, and a backlit LCD that can

be read in bright sunlight or dimly lit areas. Finally,

there are intrinsically safe and nonincendive versions

of these instruments that can be installed in

hazardous areas.
Free, PC-based, MeterView XL software that

connects to the meter via a micro USB cable is

available for programming and setup of the meters.

For more details, see the

LIM6622MVXL manual

All models come equipped with two open collector

outputs and a digital input. There are also models

available with two solid state relays and isolated

4-20 mA analog output options. The open collector

outputs are useful for alarm indication or pulse output.

The digital input can be used to reset the total. The

relays can be programmed for alarm indication, on/off

control, or simple batch control.

Содержание PD6622-L2N

Страница 1: ...6 91 mm Behind Panel 2 Open Collector Outputs Standard Assigned to Pulse Alarm Timer or Stopwatch 2 Optional Loop Powered Solid State Relays Assigned to Alarm Sample Timer Batch or Stopwatch Stopwatch Timer Functions to Drive Relays Open Collectors Optional Isolated 4 20 mA Analog Output Display Relay Runtime Cycle Count via Relay Info Menu Free PC Based MeterView XL USB Programming Software HART ...

Страница 2: ...of flow rate and total from a 4 20 mA signal One of the most convenient features of these instruments is their ability to display both flow rate and total at the same time For instance flow rate is typically displayed on the 5 digit alphanumeric top line and flow total or grand total is typically displayed on the 8 digit alphanumeric bottom line Both display lines use 14 segment alphanumeric chara...

Страница 3: ...s and 4 20 mA Analog Output Loop Leader PD6628 Bargraph Models Hazardous Area Model Description PD6628 LNN Loop Powered Hazardous Area Bargraph No Options PD6628 L2N Loop Powered Hazardous Area Bargraph Two Solid State Relays PD6628 L3N Loop Powered Hazardous Area Bargraph 4 20 mA Analog Output PD6628 L5N Loop Powered Hazardous Area Bargraph Two Solid State Relays and 4 20 mA Analog Output Note Al...

Страница 4: ...1 Dimensions 12 Connections 12 Connectors Labeling 12 Wiring Diagrams 13 Safe Area Current Loop 4 20 mA Connections 13 Safe Area Digital Input Connection 13 Safe Area 4 20 mA Output Connections 13 Safe Area Solid State Relay Connections 13 Safe Area Open Collector Outputs 13 Setup and Programming 14 Overview 14 MeterView XL Programming Software 14 Front Panel Buttons and Status LED Indicators 14 D...

Страница 5: ... Meter to Factory Defaults 40 Determining Software Version 40 Factory Default Settings 41 Troubleshooting Tips 42 EU Declaration of Conformity for PD6622 PD6624 43 EU Declaration of Conformity for PD6626 PD6628 44 Table of Figures Figure 1 1 8 DIN Panel Cutout Dimensions 11 Figure 2 Panel Mounting Details 11 Figure 3 Meter Dimensions Side View 12 Figure 4 Meter Dimensions Front View 12 Figure 5 Co...

Страница 6: ... LEXAN polycarbonate PC Film Buttons Silicone rubber Noise Filter Averages the input signal over a period of time between 1 and 16 seconds to dampen the effects of a noisy signal that causes a jumpy display Filter Bypass 0 0 to 99 9 of full scale Input signal changes greater than bypass value are displayed immediately Recalibration Recalibration is recommended at least every 12 months Max Min Disp...

Страница 7: ...ywhere between 0 0001 to 99 999 based on batch total decimal point If batch total is assigned to bottom the preset can be up to 8 digits Batch Preclose For two stage batch application a preclose value can be set to close the main flow line Automatic Batch Restart Delay 1 to 9 999 seconds The batch will automatically restart after completion of the last batch Common Open Collector Relay Alarm Speci...

Страница 8: ... 30 VDC On Board Digital Input Function Remote operation of front panel buttons acknowledge reset relays reset total reset max min values etc See User section of Display Functions Messages on page 15 for a complete list of capabilities Contacts 2 1 VDC on contact Connect normally open contacts across DI and DI Logic Levels Logic High 2 4 to 30 VDC max Logic Low 0 to 0 9 VDC MeterView XL Programmin...

Страница 9: ... the non me tallic parts incorporated in the enclosure of this equipment may generate an ignition capable level of electrostatic charge Therefore the equipment shall not be installed in a location where the exter nal conditions are conducive to the build up of electrostatic charge on such surfaces This is par ticularly important if the equipment is installed in a zone 0 location In addition the eq...

Страница 10: ...HER SOUS TENSION Year of Construction This information is contained within the serial number with the first four digits representing the year and month in the YYMM format Safety Information Read complete instructions prior to installation and operation of the meter Risk of electric shock or personal injury Hazardous voltages exist within enclosure Installation and service should be performed only ...

Страница 11: ...utout 3 622 x 1 772 92 mm x 45 mm Refer to Figure 1 and Figure 2 below for more details Clearance allow at least 4 0 102 mm behind the panel for wiring Panel thickness 0 04 0 25 1 0 mm 6 4 mm Recommended minimum panel thickness to maintain Type 4X rating 0 06 1 5 mm steel panel 0 16 4 1 mm plastic panel Remove the two mounting brackets provided with the meter back off the two screws so that there ...

Страница 12: ...stallation must be performed in accordance with Control Drawing LIM6600 2 in order to meet agency approval ratings Connectors Labeling The connectors label affixed to the meter shows the location of all connectors available with requested configuration Figure 5 Connector Labeling for PD662 LNN Figure 6 Connector Labeling for PD662 L2N with 2 Solid State Relays Figure 7 Connector Labeling for PD662...

Страница 13: ...ding on the nature of the overload Safe Area Digital Input Connection A digital input is standard on the meter This digital input is connected with a normally open contact across DI and DI or with an active low signal applied to DI and DI Figure 11 Digital Input Connections Safe Area 4 20 mA Output Connections Connections for the 4 20 mA transmitter output are made to the connector terminals label...

Страница 14: ...IM6622MVXL manual Care should be exercised to avoid ground loops when connecting the USB to an active loop e g power supply transmitter loop powered meter etc It is recommended to connect the mA terminal of the meter to the terminal of a two wire transmitter and the mA to the of the next device in the loop or to the terminal of the power supply Front Panel Buttons and Status LED Indicators PD6622 ...

Страница 15: ...UT Program the meter s available outputs OPEN COLLECTR Program the meter s open collector outputs OUTPUT1 Open collector 1 setup OUTPUT2 Open collector 2 setup DISABLE Disable the open collector Parameter Action Setting Description PULSE Program the open collector for pulse output ALARM Program the open collector for alarm output TIMER Program the open collector as a timer TOT RST Program the open...

Страница 16: ...ISABLE Disable grand total reset PERMLOCK Set grand total as non resettable CUTOFF Set low flow cutoff DISABLE Disable low flow cutoff ENABLE Enable low flow cutoff FILTER Set noise filter value 1 0 SEC 1 second 2 0 SEC 2 seconds Parameter Action Setting Description 4 0 SEC 4 seconds 8 0 SEC 8 seconds 16 0 SEC 16 seconds OFF Turn filter off BYPASS Set filter bypass 0 0 to 99 9 FS PASSWRD Set a pas...

Страница 17: ...ion key or digital input to reset a value RESET Reset min max or max min rate value R MIN MAX Reset max and min rate value RST T Reset the total RST GT Reset the grand total Parameter Action Setting Description RST T GT Reset the total and grand total HINT Display hint text on first key press and execute action on second key press OFF Turn the hint function off ON Turn the hint function on SYSTEM ...

Страница 18: ... grand total and its units alternating GT TAG Display the grand total and its tag alternating GT U RU Display the grand total units and rate units alternating RATE Display the rate Parameter Action Setting Description RATE TU Display the rate and the total s units alternating RATE U Display the rate and its units alternating RATE TAG Display the rate and its tag alternating R UNITS Display the rat...

Страница 19: ...aving changes Note the underscore in the graphic below is provided to show which digit would be flashing Scaling the 4 20 mA Input INPUT It is very important to read the following information before proceeding to program the meter The meter is factory calibrated prior to shipment to display 0 00 to 100 00 gal s which corre sponds to the 4 20 mA input The calibration equipment is traceable to NIST ...

Страница 20: ...ow buttons to auto increment or decrement the character Press Enter to accept the character Notes Press and hold the Right Arrow while no character is being edited to erase all charac ters to the right of the flashing character Press and hold Up or Right Arrow to auto in crement or decrement a selected character All text values including tags and alarm mes sages are set in a similar fashion Scalin...

Страница 21: ...nd then it moves to the left most position Pressing the Up Arrow moves the decimal point one place to the left The decimal point location is set independently for the rate total and grand total Enabling or Disabling the Commas on the Bottom Display COMMA The bottom display is set to show a comma separat ing the thousands and millions place by default if a numeric value is being displayed This feat...

Страница 22: ...total units Tag Units Preset batch value Stopwatch Open Collector 1 or 2 Timer Relay 1 or 2 Timer Tag and rate units alternating Tag and total units alternating Off Blank Rate s percentage of max scale mA input value mA output value Programming the Bargraph PD6624 PD6628 Only The PD6624 and PD6628 come equipped with a bar graph display for applications where a visual repre sentation of the rate or...

Страница 23: ...t the rate to tal or grand total at a programmable factor If the out put is assigned to rate the factor is a multiplier that determines the number of pulses generated based on the rate For example if the meter display shows 100 gallons second and the factor is set to 2 the number of pulses generated per second would be 200 If the output is assigned to total or grand total the k factor corresponds ...

Страница 24: ...urn on and the reset point is the display value at which the alarm will turn off If the set point is lower than the reset point the alarm will be a low alarm if the set point is higher than the reset point the alarm will be a high alarm The digital input alarm will trigger whenever the digital input is triggered For both the rate and digital input alarms a delay before the alarm is turned on or of...

Страница 25: ... There are three settings needed to use the function effectively 1 Assign stopwatch to either top or bottom display line 2 Assign the open collector or relay to control the process on off 3 Assign a function key or digital input to start stop the stopwatch Application Example To maintain consistency of a product it is necessary to take and test samples at different times throughout the day The sto...

Страница 26: ... as single shot or continuous timer For use in batch control applications the meter relays must be set to batch This will enable the batch con trol features of the meter The stopwatch output STPWATCH allows the relay to be manually activated by starting the stopwatch The stopwatch count can be displayed on the top or bot tom line The output may be disabled by selecting DISABLE During setup the rel...

Страница 27: ...play as well as optional red LED backlight flashing rate total or grand total value rate total or grand total alarms only and a programmable alarm message Sample SAMPLE A relay set to sample will trigger when the total or grand total value has incremented by a programmed amount The relay can be programmed to stay on for a specified amount of time For example if a relay is set to sample the total w...

Страница 28: ...1 Assign stopwatch to either top or bottom dis play line 2 Assign the open collector or relay to control the process on off 3 Assign a function key or digital input to start stop the stopwatch Application Example To maintain consistency of a product it is necessary to take and test samples at different times throughout the day The stopwatch function is used to open and close a solenoid valve to kn...

Страница 29: ...og output value for this display then enter display value 2 and a corresponding ana log output value for this display value This will pro vide a linearly scaled analog output Retransmit RETRANS This option will retransmit the 4 20 mA analog input without the need to scale the output Output Manual Control CONTROL The Control menu is used to control the open collec tor outputs 4 20 mA analog output ...

Страница 30: ...t up at the factory for linear function with 2 point linearization The linear function provides a display that is linear with respect to the input signal Square Root Linearization SQROOT The square root function can be used to linearize the signal from a differential pressure transmitter and dis play flow rate in engineering units PD6622 Displaying Flow Rate by Applying the Square Root Function to...

Страница 31: ...n With this information the PD6622 should be programmed in the following fashion This setup assumes the level transmitter is programmed to output 20 mA at the maximum head height of 3 00 feet but any mA value at a head height with a known flow rate may be used Function Desired Programming Open Channel Flow 3 Parshall flume Set Programmable Exponent to 1 547 Flow Rate Millions of Gallons per Day MG...

Страница 32: ...bled MeterView XL showing the linear points setup feature Up to 32 points can be selected SCALE UNITS SCALE INPUT 1 SCALE DISP 1 UNITS VOLUME HEIGHT TEMP PRESSURE WEIGHT RATE CUSTOM UNIT GAL GAL L IGAL M3 BBL BUSH cuYD cuFt cuIn LiBBL BBBL HECtL AF CUSTOM INCH FEET FT IN YARD CM M CUSTOM F C K RA PSI InHg InH2O mmHg kg CM2 kg M2 mBAr Bar PA hPA kPA MPA CUSTOM gm kg tonne oz 1b ton CUSTOM SECOND MI...

Страница 33: ...ge 19 for details about scaling the meter Calibrating the Input CAL To scale the meter without a signal source refer to Scaling the 4 20 mA Input INPUT page 19 The meter can be calibrated to display the process in engineering units by applying the appropriate input signal and following the calibration procedure The CAL menu should be used with a live signal coming from a 4 20 mA transmitter connec...

Страница 34: ...word enter the Password menu and program a five digit password When the Main pass word has been enabled the lock icon will display in the lower right of the display PD6622 26 only For instructions on how to program numeric values see Setting Numeric Values page 19 Making Changes to a Password Protected Meter If the Main password is enabled the meter will display the message LOCKED when the Menu bu...

Страница 35: ...imer OC2 Start stop open collector 2 timer RLY1 Start stop relay 1 timer RLY2 Start stop relay 2 timer Display Description START Start the selected timer output STOP Stop the selected timer output STR STP Start or stop the selected timer output BATCH FN Set the function key or digital input to batch control START Start a batch STOP Stop a batch STR STP Start or stop a batch PRESET Preset batch amo...

Страница 36: ...ed Features menu and navigate to the SYSTEM menu and press Enter Navigate to AOUTCAL and press Enter 2 The display will show 4 mA The Loop Leader mA output should now be close to 4 mA Enter the actual value read by the digital mA meter on the second line of the display and press Enter 3 The display will show 20 mA The Loop Leader mA output should now be close to 20 mA Enter the actual value read b...

Страница 37: ...u is part of the Advanced menu Internal Calibration is performed as follows 1 Press the Menu button to enter Programming Mode 2 Press the Up Arrow button twice and press Enter to access the Advanced menu 3 Press the Up Arrow button and press Enter to access the System menu 4 Press the Up Arrow button and press Enter to access the ICAL menu 5 The meter displays low input current message 4 000 mA Ap...

Страница 38: ... operation the programmable function keys op erate according to the way they have been pro grammed in the Advanced Features User menu The table above shows the factory default settings for F1 F2 and F3 A hint message may be enabled to provide a descrip tion of what each function key does prior to executing their assigned function See Enabling the Function Key Hint Feature HINT on page 36 Digital I...

Страница 39: ...lid State Relay Outputs RELAY on page 26 for complete menu structure on this feature Meter displaying the amount of time a relay has been activated Meter displaying the number of times a relay has cycled Changing Engineering Units It is possible to change the display units without the need to re scale the meter The UNITS menu in the DISPLAY menu allows the unit of measure to be changed e g from ga...

Страница 40: ...setup process from the factory defaults To load factory defaults 1 Press the Menu button to enter Programming Mode 2 Press the Up Arrow button twice and press Enter to access the Advanced menu 3 Press the Up Arrow button and press Enter to access the System menu 4 Press the Right Arrow button and press Enter to access the Default menu 5 Press Enter twice in quick succession The meter will load def...

Страница 41: ...D ON Flash rate FLASH ON Alarm Message MSG ON Message Text MSG EDIT ALARM 3 Sample Count TOTAL COUNT 1 000 gallons Parameter Display Default Setting Sample Time TOTAL TIME 10 seconds Batch Count BATCH COUNT Up Batch Max BATCH MAXIMUM 10 000 Batch Mode BATCH MODE Manual Batch Preset BATCH PRESET 1 000 Batch On Delay DELAY ON 0 seconds Batch Off Delay DELAY OFF 0 seconds Timer Off Delay OFF DLAY 1 m...

Страница 42: ... the number of digits required for the scaled value does not exceed the maximum digits for the display line If it does try adjusting the decimal point location for less precision or changing the rate display to the bottom line Display is unstable Check 1 Input signal stability and value 2 Display scaling vs input signal 3 Filter and bypass values increase Display response is too slow Check filter ...

Страница 43: ...ives shown below 2014 35 EU Low Voltage Directive 2014 30 EU EMC Directive 2011 65 EU RoHS Directive This conformity is based on compliance with the application of harmonized or applicable technical standards and when applicable or required a European Union notified body certification Standards EN 55011 2016 EN 60079 0 2012 A11 2013 EN 60079 11 2012 EN 61010 1 2010 EN 61326 1 2013 Product Markings...

Страница 44: ...al standards and when applicable or required a European Union notified body certification Standards EN 55011 2016 EN 60079 0 2012 A11 2013 EN 60079 11 2012 EN 61010 1 2010 EN 61326 1 2013 EC Type Examination Certificate CML 17ATEX2015X Product Markings II 1 G Ex ia IIC T4 Ga Tamb 40 C to 70 C ATEX Notified Body for EC Type Examination Certificate Certification Management Limited NB 2503 Unit 1 New...

Страница 45: ...655 8990 www predig com LIM6622_H SFT124 Ver 2 000 up 02 21 Contact Precision Digital Technical Support Call 800 610 5239 or 508 655 7300 Fax 508 655 8990 Email support predig com Sales Support Call 800 343 1001 or 508 655 7300 Fax 508 655 8990 Email sales predig com Place Orders Email orders predig com For the latest version of this manual please visit www predig com ...

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