background image

PD6701 Field-Mount Loop-Powered Feet & Inches Level Meter 

Instruction Manual 

 

2

 

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. 

 

Failure to follow installation guidelines could 
result in death or serious injury. Make sure only 
qualified personnel perform the installation. 

 

 

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. 

 

© 2020 Precision Digital Corporation. 
All rights reserved. 

Introduction 

The PD6701 is a rugged, field-mount, loop-powered 
indicator specifically designed for level applications in 
harsh environmental conditions. The meter displays 
level in easy to read and understand feet, inches, and 
fractions of an inch; and a 20-segment tank level 
indicator. The lower display can show a custom unit 
or tag, percent full, or a second scale for the 4-20 mA 
input used to indicate volume. 

The meter derives all of its power from the 4-20 mA 
loop. It is programmed using the four SafeTouch 
through-window buttons, without removing the cover, 
and can be scaled with or without a calibration signal. 
The upper display will read up to 699 ft. 

– 11 

15

/

16

 

inches. The alphanumeric volume/tag display will read 
up to 9,999,999. The alphanumeric display can also 
be programmed to show any combination of numbers 
and letters up to seven characters long for use as 
engineering units and/or the process identification tag. 
The backlight lets you see the display under any 
lighting condition and can be powered from either the 
4-20 mA loop or from a separate DC power supply. 

The enclosure is provided with three threaded conduit 
holes and integrated pipe or wall mounting slotted 
flanges. 

Ordering Information 

Model 

Description 

PD6701-0K1 

Explosion-Proof Loop-Powered  
Feet & Inches Level Meter with 
backlight 

Accessories 

Model 

Description 

PDAPLUG75P

 

3/4" NPT Plastic Conduit Plug

 

PDA1024-01

 

24 VDC Power Supply for DIN Rail 

PDA6846

 

Steel 2" U-Bolt Kit. All Material: Zinc 
Plated Steel; (1) U-Bolt for 2" Pipe with 
(2 each) Washers, Lock Washers, and 
Nuts.

 

PDA6846-SS

 

Stainless Steel 2" U-Bolt Kit. All  
Material: Stainless Steel; (1) U-Bolt for 
2" Pipe with (2 each) Washers, Lock 
Washers, and Nuts.

 

PDA-SSTAG

 

Custom Stainless Steel Tag (see 
website for convenient ordering form) 

 

Summary of Contents for PD6701

Page 1: ...Tag Volume or Percent Display Level in Feet Inches and Volume Percent or Decimal Height Simultaneously Display Mountable at 0 90 180 270 SafeTouchTM Through Window Button Programming 20 Segment Tank...

Page 2: ...1 is a rugged field mount loop powered indicator specifically designed for level applications in harsh environmental conditions The meter displays level in easy to read and understand feet inches and...

Page 3: ...es 12 Scaling the Meter SCaLe 13 Selecting Inch Fraction Display Mode FRACTN 13 Scaling the Tank Level Indicator PERCENT 13 Configuring the Lower Display DISPLAY 14 Setting the Tag TAG 14 Advanced Fea...

Page 4: ...e Dimensions Side Cross Section View 6 Figure 3 Connector Board 7 Figure 4 Connections without Backlight 8 Figure 5 Connections with Loop Powered Backlight 8 Figure 6 Connections with Externally Power...

Page 5: ...ower is lost Normal Mode Rejection 64 dB at 50 60 Hz Environmental Operating temperature range 40 to 75 C Storage temperature range 40 to 75 C Relative humidity 0 to 90 non condensing Connections Scre...

Page 6: ...rt 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 Conduit Plug The PD6701 is supplied with two...

Page 7: ...klight 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 ack...

Page 8: ...nnections 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 External Alarm Reset Acknowledge Connections Open Co...

Page 9: ...n Operation To actuate a button press and remove one finger to the window directly over the marked button area Remove finger to at least 4 inches away from the window in between button activations Saf...

Page 10: ...meter Right Reset Button Press the Right arrow button to reset the maximum or minimum value while it is being displayed see Up Display Button below Press the Right arrow button to move to the next di...

Page 11: ...1 8th Set display for 1 8th inch fractions PERCENT Percent Scale the tank indicator full and empty values 0 PCT 0 Percent Set the tank empty value 100 PCT 100 Percent Set the tank full value DISPLAY D...

Page 12: ...es made to settings prior to pressing ENTER are not saved Press the MENU button during Programming Mode to return to the previous menu selections Setting Numeric Values The numeric values are set usin...

Page 13: ...ng of the meter The minimum span is 0 10 mA Scale Error Message SPN ERR If the minimum span is not maintained the meter will show a span error SPN ERR and revert to input 2 allowing the appropriate in...

Page 14: ...ate second scale of the input process variable This is configured in Volume Display Scaling VOLSCAL on page 17 Percent full height shows the percent full of the tank height level indicator programmed...

Page 15: ...e Advanced features menu functions and messages in the order they appear in the menu Display Parameter Action Setting OUTPUT Output Enter output menu OFF Off Disable output ALARM Alarm Output Enter al...

Page 16: ...ibration parameters ICAL Internal Calibration Enter internal reference calibration 4mA 4 mA Calibrate input at 4 mA 20mA 20 mA Calibrate input at 20 mA ERRSPAN Error Span Error with calibration point...

Page 17: ...y and ALARM until the alarm condition is cleared The alarm status will show on the display even if the output is not wired Input Signal Filter FILTER The noise filter is available for unusually noisy...

Page 18: ...ment while the meter is accepting the signal After the signal is accepted the meter displays 20 mA Apply a 20 000 mA signal and press ENTER The display flashes for a moment while the meter is acceptin...

Page 19: ...meter will display the message LOCKED when the Menu button is pressed Press the Enter button while the message is being displayed and enter the correct password to gain access to the menu After exiti...

Page 20: ...ayed will reset that value to the current display value Press the DISPLAY button a third time and the meter will display LOOP MA on the lower display followed by the measured input current in milliamp...

Page 21: ...ostics menu and consult the recommendations described below Troubleshooting Tips Symptom Check Action No display or faint display Check input signal connections Perform hard reset by shorting S and S...

Page 22: ...lection or increment digit Cycle through maximum minimum and mA display mode ENTER Accept selection value and move to next selection Acknowledge alarms To enter the Advanced Features Menu hold the Men...

Page 23: ...655 8990 www predig com LIM6701_E SFT087 Ver 1 300 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 8...

Reviews: