PD6770 Field-Mount Loop-Powered Process Meter
Instruction Manual
5
Specifications
Except where noted all specifications apply to operation at +25°C.
General
Display
3 ½ digit LCD
1" (25.4 mm); -1000 to 1999
Display
Orientation
Display may be mounted at 90° increments
up to 270° from default orientation.
Display
Update Rate
2.5 Updates/Second
Backlight
White; Loop-powered. Backlight can be
enabled or disabled via alternative wiring of
terminal block. Loop-powered backlight
brightness will increase as the input signal
current increases.
Display
Overrange
Display reads
1
on the left most digit
Programming
Method
Four (coarse and fine for zero and span)
potentiometers accessed when the cover is
removed.
Recalibration
Recalibration is recommended at least every
12 months.
Normal Mode
Rejection
60 dB rejection ratio
Environmental
Operating temperature range: -40 to 75°C
Storage temperature range: -40 to 75°C
Relative humidity: 0 to 90% non-condensing
Printed circuit boards are conformally coated.
Connections
Screw terminals accept 12 to 22 AWG wire
Enclosure
NEMA 4X, IP66 plastic field enclosure,
polycarbonate with UV stabilizer.
Color: grey.
Window: Clear polycarbonate with UV
stabilizer.
Three ¾" NPT threaded conduit openings.
Two ¾" NPT plastic conduit plugs included.
Tag or Tamper
Seal Loop
Loops molded into base and cover of
enclosure for tamper wire or tags.
Mounting
May be mounted directly to conduit.
Two slotted flanges for wall mounting or
NPS 1½" to 2½" or DN 40 to 65 mm pipe
mounting. See
on page
Overall
Dimensions
5.67" x 5.25" x 4.18" (W x H x D)
(144 mm x 133 mm x 106 mm)
Weight
1.65 lbs (26.4 oz, 0.75 kg)
Warranty
3 years parts and labor. See Warranty
Information and Terms & Conditions on
Input
Input
4-20 mA
Accuracy
±0.1% of full span ±1 count
Maximum
Voltage Drop &
Equivalent
Resistance
Without
Backlight
With Loop-Powered
Backlight
1 VDC @ 20 mA 4 VDC @ 20 mA
50
Ω @ 20 mA
200
Ω @ 20 mA
Temperature
Drift
150 PPM/
°
C from -40 to 75
°
C ambient
Decimal Point
User selectable decimal point
Calibration
Range
4 mA input: -1000 to +1000;
20 mA between 20 and 2000 counts
greater than 4 mA display.
Two point linear display span.
Input Overload
Over current protection to 2 A max.
HART
Transparency
The meter does not interfere with existing
HART communications; it displays the
4-20 mA primary variable and it allows the
HART communications to pass through
without interruption.
The meter is not affected if a HART
communicator is connected to the loop.
The meter does not display secondary
HART variables.
