Wilkerson Instrument DR9011-02 Data sheet
DR9011-02
BRIDGE INPUT POINT-TO-POINT TRANSMITTER
DESCRIPTION
The DR9011 is an RF transmitter that will
accept both analog and switch contact
inputs. A 12 bit A/D converter is used to
digitize the analog data. Analog data and
switch status is then transmitted to the
companion DR9021 Receiver where the
analog signal and switch status is
reconstructed.
The switch inputs require a standard contact
closure or an open collector NPN transistor.
Three radio modules are available for the
DR9011, two 915MHz band versions with 7
Hop sequences each and a 2.4GHz band
SPECIFICATIONS
FEATURES
• Direct Strain Gauge (Bridge) Input
• 10 VDC Regulated Excitation Voltage
• Four Digital Inputs For Contact
Closure or NPN Transistor
• DIN Rail Mount - Steel Clip
• 10-30VDC Power
• Reverse Polarity Screw-On
SMA Antenna Connector
• 915MHz ISM* Band - 2
Versions, 14 Hop Sequences
version with 7 Hop sequences. They use
spread spectrum, frequency hopping*
technology. These choices provide 21
different Hop sequences that allow 21
systems to work in the same locale without
interfering with each other.
A DIP Switch on the PC board is used to set
the Hop sequence.
With proper antenna and cable selection and
a 915MHz band version radio, the DR9011
can transmit up to 20 miles. The 2.4GHz band
version can transmit up to 10 miles.
• 2.4GHz Unlicensed Band - 1
Version, 7 Hop Sequences
• Spread Spectrum, Frequency
Hopping Technology*
• Line of Sight Range to 20 Miles
With 915MHz Band Radio
• Line of Sight Range to 10 Miles
With 2.4GHz Band Radio
• 5 Year Warranty
(1 Year on Radio Module)
• UL/cUL Recognized
The DR9011 provides isolation between
input and power source.
A 10 VDC precision power supply is builtin and provides excitation for up to four
(4) 330 ohm bridges.
Screw terminal blocks that plug into the
case allow easy wiring and removal of
products.
All of the DR Series of products provide
transient protection to help eliminate
damage from lightning and from other
transients created on the power and
signal leads.
INPUT
Strain Gauge
Span
0.5 mV/V to 1 V/V
Accuracy
±0.1% of Span
Linearity
±0.01% of Span
Excitation:
10 VDC Precision Supply for
up to 4 Strain Gauges
125 mA Maximum
Switch Input
Open Circuit Voltage
Equals Power Input
(10 to 30 VDC)
Closed Circuit Current
3 to 9 mA
RADIO
Frequency
915 MHz Band
908 or 922 MHz
2.4 GHz Band
2.4000 - 2.4835 GHz
Spread Spectrum Type
Frequency Hopping, Direct FM
I/O Data Rate Tx to Rx:
9600 bps
Update Rate
6.5/S
Range / Line of Sight
915 MHz Band - Up to 20 Mi.
2.4 GHz Band - Up to 10 Mi.
Receiver Sensitivity:
915 MHz Band
-110 dBm @ 9600 baud
2.4 GHz Band
-105 dBm @ 9600 baud
Transmitter Power:
915 MHz Band
100 mW (20 dBm)
2.4GHz Band
50 mW (17dBm)
Connector:
Reverse Polarity SMA Female
CERTIFICATIONS
RF Module
FCC Part 15.247
DR9011-02
UL/cUL Recognized
COMMON MODE REJECTION
100 dB, DC to 60 Hz
OPERATING TEMPERATURE
-13°F to 167°F
-25°C to 75°C
TEMPERATURE STABILITY
±(0.01% of Span)/°C Max
POWER
10 to 30 VDC
1.5 Watts Max
* See page 56 for a comprehensive
definition.
5
DR9011-02
Wilkerson Instrument Co., Inc. Copy and Fax to Place Order.
ORDERING
INFORMATION
Input Range
(Must be within minimum to maximum specification)
Span
mV/V V/V
RADIO
908 MHz - Standard
922 MHz - Optional
2.4 GHz
* NOTE: This unit must be used with a DR9021 wireless receiver.
ACCESSORIES
RP = Reverse Polarity
4073 Two Antenna Coupler, Transmit and Receive, 2-Port 900 MHz QTY _____
4051 Receive Only, 2 to 4 Antenna Coupler 4-Port 900 MHz QTY _____
4061 Receive Only, 2 to 4 Antenna Coupler 4-Port 2.4 GHz QTY _____
4062 50 Ohm Termination, For Unused Ports On P/N 4051,4061 QTY _____
4022 PSP24-024S, 24 VDC 1 Amp Power Supply QTY _____
4026 Bulkhead Connector Type N Female to Type N Female QTY _____
4011 Bulkhead Surge Protector Type N Male to Type N Female QTY _____
4035 Bulkhead Surge Protector Type N Female to Type N Female QTY _____
CBH2 2 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH6 6 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH10 10 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH-X Custom Length WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CPT2 2 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT6 6 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT10 10 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT-X Custom Length WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
For more accessories and cables, see the ACCESSORIES section of this catalog (Page 51).
DIMENSIONS
Inches [mm]
CONNECTIONS
TERMINAL
CONNECTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
6
Bridge Input +
Bridge Input Shield
Shield
Switch 1 +
Switch 1 Switch 2 Switch 2 +
Switch 3 +
Switch 3 Switch 4 Switch 4 +
10 VDC Excitation +
Excitation Common
Power +
Power -
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