PDW90 Point to Multi-Point Wireless Instruction Manual
7
PDW90 Field Unit Specifications
General
Display
32-character dual-line alphanumeric
dot matrix LCD display with backlight
(4.68mm x 2.21mm characters)
Display
Orientation
Display may be mounted at 180°
from default orientation
Network ID
Field selectable: 0 - 99
Programming
Methods
Four programming buttons (behind
glass) or PC with PDW Manager soft-
ware.
Recalibration
All inputs and outputs are calibrated
at the factory. Recalibration is recom-
mended at least every 12 months.
Process/
Digital I/O
Display
Press the
display
button once to dis-
play the present analog input and
output. Press the
display
button
again to display digital I/O states.
Password
A programmable password restricts
modification of programmed settings.
Power
12-28 VDC, 5 W max
Non-Volatile
Memory
All programmed settings are stored
in non-volatile memory for a mini-
mum of ten years if power is lost.
Isolation
500 V
Environmental
Operating temp. range: -40 to 65°C
(display inoperable < -20 °C)
Storage temp. range: -40 to 85°C
Relative humidity: 0 to 90% non-con-
densing
Connections
Removable screw terminal blocks ac-
cept 16 to 30 AWG wire.
Enclosure
Cast aluminum with glass window,
0.3% max copper content, corrosion
resistant powder coating, color: blue.
IP68. Two ½" NPT threaded conduit
openings. One ½" NPT stainless
steel conduit plug with 10 mm hex
key fitting installed.
Mounting
May be mounted directly to conduit.
Two mounting holes for 1.5" pipe or
wall mounting. See Mounting Dimen-
sions on page 40 for mounting space
requirements.
Signal Con-
nector Tight-
ening Torque
2.2 lb-in (0.25 Nm)
Shipping
Dimensions
17" x 14" x 9" (43.2 cm x 35.6 cm x
22.9 cm) (L x W X H)
Shipping
Weight
5 lbs. (2.27 kg)
Warranty
3 years parts & labor
Analog Input
Inputs
Field selectable: 4-20 mA, 0-10 V,
0-5 V, 1-5 V
Accuracy
±0.03% of calibrated span ±1 count
Temperature
Drift
0.005% of calibrated span/
C max
from 0 to 65
C ambient,
0.01% of calibrated span/
C max
from -40 to 0
C ambient
Input
Impedance
Voltage ranges: greater than
110 k
Current ranges: less than 220
Signal Loss
Inputs will remain off (open circuit)
until wireless units are reconnected.
HART
Transparency
Analog input will not interfere with
existing HART communications on
the wired 4-20 mA signal
Isolated 4-20 mA Transmitter Output
Output Source
Analog input from connected wire-
less unit
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Accuracy
± 0.1% of span ± 0.004 mA
Loop Power
Supply
Internally powered; no external sup-
ply needed
Temperature
Drift
0.4 µA/
C max from 0 to 65
C ambi-
ent, 0.8 µA/
C max from -40 to 0
C
ambient
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC
10
900
Signal Loss
After approximately 25 seconds of
trying to reconnect, mA output will
become 3.2 mA
Digital Input / Output Terminal
Channels
Four (4) digital connections, inde-
pendently field selectable as either
inputs or outputs
DI Logic High
3 to 5 VDC
DI Logic Low
0 to 1.1 VDC
DI Contact
Dry contact to ground can be used
to activate the input
DO Logic High
3 to 5 VDC
DO Logic Low
0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink Current
1.5 mA minimum input current
Signal Loss
Digital output goes to logic high
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