Wilcoxon P704B 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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98450 Rev.A 9/01
SPECIFICATIONS
INPUT CHARACTERISTICS
Voltage to Transducer.................................................... 27 VDC1
Current to Transducer, ±20%........................................ 2.4 mA DC
OUTPUT CHARACTERISTICS
Output Impedance ......................................................... same as transducer
Recommended Load Impedance................................... >100 kΩ
Decoupling Cap ............................................................. 22 µV, 35 VDC
TRANSFER CHARACTERISTICS
Frequency Response ..................................................... same as transducer
BATTERY TEST CIRCUIT
LED Lights ..................................................................... >18 VDC
Battery Life..................................................................... >120 hours
POWER REQUIREMENTS
Batteries2........................................................................ (3) 9V alkaline
ENVIRONMENT
Temperature Range....................................................... 0 to 55°C
PHYSICAL CHARACTERISTICS
Size ............................................................................... 3" W x 2.4" H x 4" D
Weight............................................................................ 0.84 lb.
Connectors:
Signal Input ............................................................ BNC
Signal Output ......................................................... BNC
Model P704B
General Purpose Power Unit
NOTES: 125 VDC when using NiCad batteries.
2For extended operation the NC3 NiCad Battery Kit should be used (see accessories section).
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:
•Powers most 700 Series Accelerometers
•Battery powered (line adaptor optional)
•Portable and lightweight
•Battery condition light
•Uses readily available 9 VDC transistor
batteries

POWER UNIT
MODEL P704B
TRANSDUCER
LINE
ON TEST
OFF
OUTPUT
GAITHERSBURG, MARYLAND
Made in the USA
READOUT
READOUT
EQUIPMENT
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
Model P704B 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.
—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
x 1
x 10
x 100
x 1k
x 10k
OSCILLATOROSCILLATOR
4.3K
129
38
47 56
100 µF
35V
To transducer
connector of
channel under
test.
Test for Proper Operation
To check the Model P704B 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.