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PD6870 Explosion-Proof Loop-Powered Process Meter 

Instruction Manual 

 

10

 

Factory Default & User Settings  

The following table shows the factory setting for most 

of the programmable parameters on the meter. Next 

to the factory setting, the user may record the new 

setting for the particular application. 
 
Model: ____________________________________ 
S/N: ______________________________________ 
Date: _____________________________________ 

 

Parameter 

Default Setting  User Setting 

Decimal 

point

 

1 place 

 

Calibration 

Settings

 

 

 

Input 1 

 

4.00 mA 

 

Display 1

 

-50.0 

 

Input 2 

 

20.00 mA 

 

Display 2

 

150.0 

 

Troubleshooting 

The rugged design and the user-friendly interface of 

the meter should make it unusual for the installer or 

operator to refer to this section of the manual. If the 

meter is not working as expected, refer to the recom-

mendations below. 

Troubleshooting Tips 

Symptom 

Check/Action 

No display 

Check input signal connections.  

Display unsteady 

during calibration 

Adjust LO FINE or HI FINE con-

trols to fine-tune the display. 

Meter displays 

1

 on 

the left most digit 

location 

Check signal level is not over 

range. 
Dial down the HI control and re-

calibrate at 20 mA. 

Display is faded 

Check input signal is not under 

1 mA. 

Backlight does not 

appear 

Verify backlight is installed. 
Check signal connections are 

as shown i

Figure 5

 on page 

8

. 

Other symptoms 

not described 

above 

Call Technical Support for  

assistance. 

 

Summary of Contents for PD6870

Page 1: ...nt Loop Powered Backlight Option Operating Temperature Range 40 to 75 C 40 to 167 F Zero Span Potentiometer Adjustments for Easy Field Scaling Conformal Coated PCBs for Dust and Humidity Protection FM...

Page 2: ...t of the defective unit See Warranty Information and Terms Conditions on www predig com for complete details 2021 Precision Digital Corporation All rights reserved Introduction The ProtEX FarVu PD6870...

Page 3: ...ag that can be customized with three lines of text Each tag comes with a stainless steel wire and lead seal for easy mounting wherever you need Dimensions Useful Tools PD9501 Multi Function Calibrator...

Page 4: ...er Jam Screw 8 Connections 8 Wiring Diagrams 8 Setup 9 Overview 9 Scaling Controls and Display 9 Setting Up the Meter 9 Setting the Decimal Point 9 Minimum Maximum Input Span 9 Calibrating the Meter 9...

Page 5: ...ion resistant epoxy coating Color Blue Window Glass Two NPT threaded conduit openings One NPT nickel plated brass conduit plug with 12 mm hex key fitting installed Mounting May be mounted directly to...

Page 6: ...an explosive atmosphere then appropriate protection of the free end of the cable shall be provided Year of Construction This information is contained within the serial number with the first four digi...

Page 7: ...t the packaging and contents for damage Report damages if any to the carrier If any part is missing or the meter malfunctions please contact your supplier or the factory for assistance Pre Installed C...

Page 8: ...g the installed loop powered backlight op tion Refer to Figure 3 for terminal positions Observe all safety regulations Electrical wiring should be performed in accordance with all agency requirements...

Page 9: ...hat fasten the display module Remove the display module and place the jumper on the desired pins as indicated on the board for decimal point locations of D DDD DD DD DDD D or remove it if no decimal p...

Page 10: ...e rugged design and the user friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual If the meter is not working as expected refer t...

Page 11: ...EN 60079 1 2007 EN 60079 31 2009 EN 61010 1 2001 and EN 61326 1 2006 are no longer harmonized The requirements of these standards have been checked against the harmonized standard EN 60079 0 2018 EN 6...

Page 12: ...ax 508 655 8990 www predig com LIM6870_K 06 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 o...

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