PD6820 Explosion-Proof Loop-Powered Rate/Totalizer
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.
•
Never remove the meter cover in explosive
environments when the circuit is live.
•
Cover must be fully engaged to meet
flameproof/explosion-proof requirements.
WARNING
Cancer and Reproductive Harm -
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
details.
© 2020 Precision Digital Corporation.
All rights reserved.
Introduction
The ProtEX-RTA PD6820 is a rugged, explosion-
proof loop-powered rate/totalizer fully featured for
demanding applications in hazardous areas or in the
harshest environmental conditions. The meter derives
all of its power from the 4-20 mA loop. It is pro-
grammed using the four SafeTouch through-glass
buttons, without removing the cover, and can be
scaled with or without a calibration signal. The numer-
ic rate display will read up to 99999 and the alphanu-
meric total/tag display will read up to 9999999. 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 two threaded conduit
holes and integrated pipe or wall mounting slotted
flanges.
Ordering Information
Model
Description
PD6820-0K1
Explosion-Proof Loop-Powered
Rate/Totalizer with Backlight
Accessories
Model
Description
3/4" M-NPT to F-M20 Reducer
3/4" M-NPT to 1/2" F-NPT Reducer
24 VDC Power Supply for DIN Rail
Steel 2" U-Bolt Kit. All Material: Zinc
Plated Steel; (1) U-Bolt for 2" Pipe with
(2 each) Washers, Lock Washers, and
Nuts.
Stainless Steel 2" U-Bolt Kit. All
Material: Stainless Steel; (1) U-Bolt for
2" Pipe with (2 each) Washers, Lock
Washers, and Nuts.
Custom Stainless Steel Tag (see
website for convenient ordering form)
