PD6928 Ex-Proof & I.S. Loop-Powered Flow Rate/Totalizer
Instruction Manual
6
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.
•
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.
•
For Explosion-Proof / Dust-Ignition Proof / Flame-
Proof applications, never remove the meter cover
in explosive environments when the circuit is live.
•
Cover must be fully engaged to meet Explosion-
Proof / Dust-Ignition Proof / Flame-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.
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© 2022 Precision Digital Corporation.
All rights reserved.
Introduction
The PD6928 loop-powered explosion-proof
& intrinsically safe flow rate/totalizer can be installed
virtually anywhere to provide convenient and
informative display of any 4-20 mA signal. They can
operate down to -40°C and be installed in areas that
get as cold as -55°C, however the display will cease
functioning. One of the most convenient features of
these instruments is their dual-line display which is
typically used to display the flow rate on the
5-character alphanumeric top display and flow total,
flow grand total, or a tag on the 8-character
alphanumeric bottom display. The top display uses
12-segment, and the bottom display uses 14-segment
alphanumeric characters for clear indication of tags,
units, or alarm messages.
Further enhancing the display on these instruments is
a 20-segment bargraph.
These flow rate/totalizers can be installed virtually
anywhere because they get their power from the
4-20 mA loop and therefore require no separate
power source. And they only drop 1.5 V (4.7 V with
backlight), so they add very little burden to the loop.
Additional features that allow these instruments to be
installed virtually anywhere include a NEMA 4X, IP68
explosion-proof, an operating temperature range of
-40 to 167°F (-40 to 75°C), conformally coated PCBs,
and a backlit LCD that can be read in bright sunlight
or dimly lit areas.
The Series is CSA Certified as Explosion-
Proof / Dust-Ignition Proof / Flame-Proof and ATEX
and IECEx Certified as Intrinsically Safe. The
enclosure itself is ATEX, IECEx, CSA, and UL
approved.
Free, PC-based, MeterView XL software that
connects to the meter via a micro USB cable is
available for programming and setup of the meters.
For more details, see the
. Four
CapTouch through-glass buttons are available to
operate the instrument without removing the cover.
All models come equipped with two open collector
outputs and a digital input. There are also models
available with two solid-state relays and isolated 4-20
mA analog output options. The open collector outputs
are useful for alarm indication or pulse output. The
digital input can be used to remotely reset the total, to
start/stop a timer/stopwatch, and more. The relays
can be programmed for alarm indication, sample,
timer, batch control, or stopwatch.
