Precision Digital Corporation PD6620 Series Скачать руководство пользователя

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4-20 mA Input

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Loop-Powered Flow Rate/Totalizer

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1.5 Volt Drop (4.5 Volt Drop with Backlight)

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Display Rate & Total Simultaneously

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Loop-Powered Backlight with Red Backlight for Alarm Conditions

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NEMA 4X, IP65 Front

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-40 to 167°F (-40 to 75°C) Safe Area Operating Temperature Range

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Free PC-Based USB Programming Software

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5-Digit Alphanumeric Top Line

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8-Digit Alphanumeric Bottom Line

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8-Digit Total & Grand Total Display, Up to 13 Digits Using Both Lines

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20-Segment Bargraph with Numeric Percent Indication

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Conformal Coated PCBs for Dust & Humidity Protection

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Two Open Collector Outputs Standard

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Dual-Line Display

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1/8 DIN Shallow Depth Case

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Optional Loop-Powered Solid-State Relays

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Optional 4-20 mA Analog Output

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UL & C-UL 61010 Listed for Electrical Safety

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UL & C-UL Listed as Intrinsically Safe and Nonincendive

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ATEX and IECEx Certified as Intrinsically Safe

LOOP-POwERED RATE/TOTALIZERS

PD6620 Series

Loop Leader

Loop-Powered Rate/Totalizers

Precision Digital corPoration

www.predig.com

PD6622/26 Decimal Display

PD6624/28 Decimal Display with Bargraph

IECEx

PD6626 & PD6628 only

Содержание PD6620 Series

Страница 1: ...oth Lines 20 Segment Bargraph with Numeric Percent Indication Conformal Coated PCBs for Dust Humidity Protection Two Open Collector Outputs Standard Dual Line Display 1 8 DIN Shallow Depth Case Optional Loop Powered Solid State Relays Optional 4 20 mA Analog Output UL C UL 61010 Listed for Electrical Safety UL C UL Listed as Intrinsically Safe and Nonincendive ATEX and IECEx Certified as Intrinsic...

Страница 2: ...ns can be used as function keys In addition a digital input is standard and is particularly useful for remote reset of the total or to start stop a timer batch All models come equipped with two open collector outputs and are available with two solid state relays and 4 20 mA analog output options The open collector outputs are useful for alarm indication or sending a pulse to indicate when a certai...

Страница 3: ...p Leader s flashing red alarm message can be activated even if no relay or open collector is connected Dual Scale Display Feature Users can use the Loop Leader s dual scale feature when they want to show the same input in two different scales For instance the following example shows an application where the Loop Leader displays the input in gallons per minute and cubic feet per minute Rate in GPM ...

Страница 4: ...tomatic Manual AUTO MAN Alarm will reset automatically once the alarm condition has cleared but can also be reset using the Enter button or whichever function key is set to acknowledge at any time Latching LATCH Alarm must be reset manually and can be done so at any time Press the Enter ACK button at any time to clear the alarm Latching with Reset after Cleared L CLEAR Alarm must be reset manually...

Страница 5: ...open The barrel begins to fill Preclose Valve When the batch total reaches a value of 50 00 Preset 55 00 Preclose 5 00 the full flow valve closes The fill rate of the tank slows as a result Completed Batch When the batch total equals the preset amount the restricted flow valve closes The barrel is now full Change Preset After placing a new empty barrel a new preset fill amount may be selected with...

Страница 6: ...the user can also program time delays and fail safe operation Multi Point Linearization Meters are set up at the factory for linear function with 2 point linearization Up to 32 linearization points can be selected for the scaled value under the linear function Multi point linearization can be used to linearize the display for non linear signals to convert level to flow using weirs and flumes with ...

Страница 7: ...y Flow Rate and Total at the same time Set upper display for Grand Total and lower display to toggle between rate and total Sampling Take a 1 pint sample every 100 000 gallons Set up relay for sampling and to trip every 0 1 million gallons Set up sampling time such that 1 pint is sampled Preset 0 100 100 000 gallons 0 100 Relay LED Total 0 200 0 300 Sample Time Sample Time Sample Time Total Relay ...

Страница 8: ... 20 mA Connections The following figures show a 4 20 mA loop connected to the meter The first figure shows the connection without the backlight and the second shows the connection with the backlight The meter is powered by the 4 20 mA current loop 4 20 mA Input Connection without Backlight 4 20 mA Input Connection with Backlight I I Power Supply Device with 4 20 mA Input Safe Area 4 20 mA Output C...

Страница 9: ...lues are stored in non volatile memory for a minimum of ten years if power is lost Normal Mode Rejection 64 dB at 50 60 Hz Connections Removable screw terminals accept 12 to 22 AWG DI Digital Input Contacts 2 1 VDC on contact Connect normally open contacts across DI and DI DI Digital Input Logic Levels Logic High 2 4 to 30 VDC max Logic Low 0 to 0 9 VDC Tightening Torque Screw terminal connectors ...

Страница 10: ...f when stopped Open Collector Outputs Rating Two NPN Isolated open collector 5 30 VDC 150mA max Output Assignment Pulse Alarm Timer Total Reset Stopwatch on off or Disable Pulse Output Source Rate Total Grand Total or Test Frequency Pulse Output Factor 0 000001 to 999 999 9 Pulse Width 0 5 ms 1 kHz 500 ms 1 Hz 50 duty cycle Pulse Output Frequency 1 000 Hz maximum Quadrature Pulse Output Available ...

Страница 11: ...dow is used to The 4 20 mA Output window is used to program the isolated 4 20 mA output s source range and under and over range values Function THIS METER Set the input 4 20 mA Enable disable the totalizer Totalizer enabled Enable disable the dual scale feature Dual scale disabled Scale the input Linear input unit is gallons 2 cal points 4 20 mA 0 100 GAL Free PC Based USB Programming Software Eas...

Страница 12: ...inted Steel NEMA 4 Enclosure PDA2801 Low Cost Plastic NEMA 4X Enclosure PDA3407 Internally Mount NEMA 4X Plastic Enclosure PD6620 Series Loop LeaderLoop Powered Rate Totalizers LDS6622_G 08 18 www predig com Precision Digital Corporation 233 South Street Hopkinton MA 01748 USA Tel 800 343 1001 Fax 508 655 8990 Loop Leader PD6622 Standard Decimal Models General Purpose Model Description PD6622 LNN ...

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