PD6600 Series Loop-Powered Process Meters
Instruction Manual
4
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subject to change without notice. Precision Digital
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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.
WARNING
Cancer and Reproductive Harm -
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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
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Introduction
These loop-powered 1/8 DIN digital panel meters can
be installed virtually anywhere to provide convenient
and informative display of any 4-20 mA signal. One of
the most convenient features of these instruments is
their dual line display which is typically used to display
the process variable on the 5-digit alphanumeric top
display and the units of measure or a tag on the 8-
digit alphanumeric bottom display. Another common
setup is to display the input in one scale on the top
display (such as feet) and in another scale on the bot-
tom display (such as gallons). Both display lines use
14-segment, alphanumeric characters for clear indica-
tion of tags, units, or alarm messages.
Further enhancing the display on these instruments is
a 20-segment bargraph available on the PD6604 and
PD6608 that also includes a numeric value of the per-
centage the bargraph represents.
These loop-powered meters 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 (4.5 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, IP65
front panel, an operating temperature range of
-40 to 167°F (-40 to 75°C) (for safe area products),
conformally coated PCBs, and a backlit LCD that can
be read in bright sunlight or dimly lit areas. Finally,
there are intrinsically safe and nonincendive versions
of these instruments that can be installed in hazard-
ous areas.
Free, PC-based, MeterView XL software that con-
nects to the meter via a micro USB cable is available
for programming and setup of the meters. For more
details, see the
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. The digital
input can be used to acknowledge the relays, to
start/stop a timer/stopwatch, and more. The relays
can be programmed for alarm indication, on/off
control, or pump alternation.
