background image

PD6720 Field-Mount Loop-Powered Rate/Totalizer 

Instruction Manual 

 

12

 

Main Menu Display Functions & 
Messages 

The meter displays various functions and messages 
during setup, programming, and operation. The table 
in the right column shows the main menu functions 
and messages in the order they appear in the menu. 
 

Main Menu 

The main menu consists of the most commonly used 
functions: 

Setup, Password, 

and 

Service

Press 

MENU

 button to enter Programming Mode then 

press the 

Up

 

Arrow

 button to scroll through the main 

menu. 

 

 

Press 

MENU

, at any time, to exit and return to 

Run Mode. Changes made to settings prior to 
pressing 

Enter 

are not saved. 

 

Changes to the settings are saved to memory 
only after pressing 

Enter

 

The display moves to the next menu every time  
a setting is accepted by pressing 

Enter

 

Display 

Parameter 

Action/Setting 

SETUP

 

Setup 

Enter 

Setup

 menu 

DeC..pt 

Decimal point 

Enter 

Decimal Point 

menu 

Rate 

Rate decimal 

Set rate display decimal 
point 

total 

Total decimal 

Set total display decimal 
point 

PRoG 

Program 

Enter the 

Program

 menu 

sCalE 

Scale 

Enter the 

Scale

 menu 

Cal 

Calibrate 

Enter the 

Calibrate

 menu 

Inpt1 

Input 1 

Calibrate input 1 signal or 
program input 1 value 

DspL1 

Display 1 

Program display 1 value 

Inpt2 

Input 2 

Calibrate input 2 signal or 
program input 2 value 

DsPl2 

Display 2 

Program display 2 value 

Span 

Error

 

Span 
Error 

Error, calibration not 
successful, check signal 

TbASE 

Time Base 

Enter the 

Time Base 

menu 

sec 

Second 

Units per 

second

 

min 

Minute 

Units per 

minute

 

hour 

Hour 

Units per 

hour

 

day 

Day 

Units per 

day

 

TotCF 

Conversion 
Factor 

Enter the 

Conversion Factor 

menu 

T rST 

Total Reset 

Enter the 

Total Reset 

menu 

Auto 

Automatic 

Automatic

 Total Reset 

T DELAY 

Time Delay 

Automatic Reset 

Time 

Delay

 

man 

Manual 

Manual

 Total Reset 

Enabl 

Enable 

Enable

 Manual reset

 

dsabl 

Disable 

Disable

 Manual reset

 

tag 

Tag/Units 

Enter the Tag/Units Menu

 

ON 

Tag On 

Enable Tag/Units

 

OFF 

Tag Off 

Disable Tag/Units

 

togle 

Tag Toggle 

Toggle Tag and Total

 

PASSWRD

 

Password 

Enter the 

Password

 menu

 

UNLOCKD

 

Unlocked 

Program password to lock 
meter

 

LOCKED

 

Locked 

Enter password to unlock 
meter

 

99999 
-99999 

Flashing 
display 

Overrange condition 
Underrange condition

 

SERVICE

 

Service 

Select before 
removing/installing cover for 
service or to clean the 
window

 

 

Summary of Contents for PD6720 Series

Page 1: ...Display Rate in Units per Second Minute Hour or Day Display Open Channel Flow with Programmable Exponent Feature Open Collector Pulse or Alarm Output Display Mountable at 0 90 180 270 SafeTouchTM Thro...

Page 2: ...Terms Conditions on www predig com for complete details 2020 Precision Digital Corporation All rights reserved Introduction The PD6720 is a rugged field mount loop powered rate totalizer fully featur...

Page 3: ...ime Base t base 15 Setting the Total Conversion Factor totCF 15 Manual or Automatic Total Reset Function t rST 16 Setting the Tag Display tag 16 Setting Up the Password PASSWRD 17 Locking the Meter 17...

Page 4: ...Enclosure Dimensions Side Cross Section View 7 Figure 3 Connector Board 8 Figure 4 Connections without Backlight 9 Figure 5 Connections with Loop Powered Backlight 9 Figure 6 Connections with Externa...

Page 5: ...Environmental Operating temperature range 40 to 75 C Storage temperature range 40 to 75 C Relative humidity 0 to 90 non condensing Connections Screw terminals accept 12 to 22 AWG wire Enclosure NEMA...

Page 6: ...able from 0 to 99 999 seconds Open Collector Output Rating Isolated open collector sinking NPN 30 VDC 150 mA max Alarm Output Assign to rate for high or low alarm trip point Assign to total for total...

Page 7: ...and set the display module aside Unpacking Remove the meter from box Inspect the packaging and contents for damage Report damages if any to the carrier If any part is missing or the meter malfunction...

Page 8: ...t from external supply OUTPUT NPN open collector output positive OUTPUT NPN open collector output negative RESET Contact closure alarm acknowledge pull up to 3 VDC RESET Contact closure alarm acknowle...

Page 9: ...ions are made to two terminals labeled RESET Connect to a contact closure source such as a relay or a pushbutton as shown in Figure 7 Figure 7 Reset Connections Open Collector Output Connections Outpu...

Page 10: ...sors are disabled when a mechanical button is pressed and will automatically be re enabled after 60 seconds of inactivity The SafeTouch buttons are designed to filter normal levels of ambient interfer...

Page 11: ...nds to access the Advanced features of the meter Right Reset Button Press the Right arrow button to move to the next digit or decimal position during programming Up Display Button Press the Up arrow b...

Page 12: ...ogram menu sCalE Scale Enter the Scale menu Cal Calibrate Enter the Calibrate menu Inpt1 Input 1 Calibrate input 1 signal or program input 1 value DspL1 Display 1 Program display 1 value Inpt2 Input 2...

Page 13: ...w to select next digit and Up arrow to increment digit The digit being changed blinks Press the Enter button at any time to accept a setting or MENU button to exit without saving changes The decimal p...

Page 14: ...functions are exclusive of each other The meter uses the last function programmed Only one of these methods can be employed at a time The Scale and Calibrate functions can use up to 32 points default...

Page 15: ...complete the calibration or scaling of the meter The minimum span is 0 10 mA If the minimum span is not maintained the meter reverts to input 2 allowing the appropriate input signals to be applied Re...

Page 16: ...on choose man dsabl To reset total upon total alarm set point choose auto enter a time delay t dly and proceed to programming the set point see Alarm Output alrm on page 19 Press the Enter button at a...

Page 17: ...returns to its password protected condition Disabling Password Protection To disable the password protection access the Password menu and enter the correct password twice as shown below The meter is n...

Page 18: ...total Set Set Point Program set point Reset Reset Point Program reset point Pulse Pulse Output Program pulse output Scaler Count MAX HZ Frequency Program pulse output maximum frequency Funct Function...

Page 19: ...deadband is one display count If set and reset points are programmed the same output will reset one count below set point Total alarm trip point program total set point Alarm reset is triggered by tot...

Page 20: ...rent source instead of using input scaling This process will override previously programmed scaling points Apply a live signal using a known accurate signal source InP 1 32 and then enter the correspo...

Page 21: ...ging time and so the longer the display may take to find its final value The filter contains a noise filter bypass feature so that while small variations in the signal will be filtered out large abrup...

Page 22: ...he factory defaults Instructions to load factory defaults Enter the Advanced features menu Press and hold Reset button when INFO is shown Press Enter when RESET DFALTS prompt is shown Note If Enter is...

Page 23: ...exit Max Min display readings Display response is too slow Check filter setting to see if it can be lowered to LO or OFF If the display locks up or the meter does not respond at all Perform hard rese...

Page 24: ...on or increment digit Cycle through maximum minimum and mA display mode ENTER Accept selection value and move to next selection Acknowledge alarms Max Min Mode While in Run Mode pressing Up Arrow will...

Page 25: ...990 www predig com LIM6720_C SFT049 Ver 1 200 up 07 20 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 34...

Reviews: