Wilcoxon P703B User manual

21 Firstfield Road, Gaithersburg, MD 20878 • Tel [phone] • Fax [phone] •1-800-WILCOXON • Email [email protected] • Web www.wilcoxon.com
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Due to continued research and development, Wilcoxon Research reserves the right to amend this specification without notice.
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SPECIFICATIONS
INPUT CHARACTERISTICS
Voltage to Transducer.................................................... 27 VDC1
Current to Transducer, ±20%......................................... 2.4 mA DC
Maximum Input Voltage ................................................. 10 V rms
OUTPUT CHARACTERISTICS
Output Impedance (accelerometer attached to input).... same as transducer
Recommended Load Impedance................................... >100 kΩ
TRANSFER CHARACTERISTICS
Frequency Response ..................................................... same as transducer
Channels........................................................................ 3
Channel Separation ....................................................... >80 dB
BATTERY TEST CIRCUIT
LED Lights ..................................................................... >18 VDC
Battery Life..................................................................... >40 hours
POWER REQUIREMENTS
Batteries......................................................................... (3) 9V alkaline
ENVIRONMENTAL
Temperature Range....................................................... 0 to 55°C
PHYSICAL CHARACTERISTICS
Size ............................................................................... 3" width, 2.4" height, 4" depth
Weight............................................................................ 0.84 lb
Connectors:
Signal Input ............................................................ BNC
Signal Output ......................................................... BNC
Models P703B
Three Channel Power Unit
98446 Rev.G 10/01
NOTES: 125.2 VDC when using Ni-Cad batteries.
2For extended operation, the NC3 Ni-Cad Battery Kit should be used (see
accessories section).
OPTIONS: •Model P703BT for use with Models 733 and 993 triaxial accelerometers.
ACCESSORIES SUPPLIED: (3) 9V alkaline batteries.
ACCESSORIES AVAILABLE: NC3 Ni-Cad battery kit; LA704B (110V) Line Adaptor;
LA704B-220 (220V) Line Adaptor; BNC Series adaptors
FEATURES:
•3channels
•Powers three separate 700 Series
accelerometers and DC decouples the
output
•Battery powered (line adaptor optional)
•Battery condition light
•Uses common 9 VDC transistor batteries
•Can drive up to 50 ft. of cable

Model P703B Operating Instructions
Use LA704B Line Adaptor to power unit from line voltage without batteries installed or
to charge NiCad batteries.
CAUTION: DO NOT ATTEMPT TO RECHARGE ALKALINES WITH THE LA704B.
Alkaline batteries may EXPLODE or leak corrosive fluids.
Test for Proper Operation
To check the Model P703B for proper
operation:
•Use a digital multimeter to verify that the
proper voltage and current are available at
the transducer connector.
•Substitute an Oscillator for the transducer.
•Follow the connection to the power unit as
shown at right.
•The unit should have unity gain.
—FOR TECHNICALASSISTANCE—
Please contact your Applications Engineer at Wilcoxon Research, Inc.
1-800-WILCOXON • 301-330-8811 • Fax [phone]
Product Features and Connections
1. To test batteries, press switch to RIGHT
(momentary) position; LED should light.
2. OFF position is with switch in center.
3. To turn unit ON, press to LEFT.
OUTPUT
x1
x10
x100
x1K
x10K
OSCILLATOROSCILLATOR
4.3K
12
9
3
8
4
75
6
100µF
35V
To transducer
connector of
channel under
test.
POWER UNIT
MODEL P703B
TRANSDUCER
LINE
ON
1
2
3
TEST
OFF
OUTPUT
GAITHERSBURG, MARYLAND
Made in the USA
READOUT
EQUIPMENT
OUTPUT
CONNECTOR
OUTPUT CABLE
TEST INDICATOR
LINE ADAPTOR JACK
ON—OFF—TEST SWITCH
TRANSDUCER
CONNECTOR
FRONT PANEL SCREWS
Remove to change
batteries.
TRANSDUCER
CABLE
TRANSDUCER