cec 4-131 Manual

Type 4-131
VELOCITY VIBRATION TRANSDUCER
Made in the United States of America
DESCRIPTION
The 4-131 is a seismic mass type velocity transducer designed for measuring vertical vibrations at low frequencies and high
temps up to +700°F (+371°C) or +900°F (+482°C). A seismic mass magnet is suspended by springs and a coil attached to the
case. The output signal results from relative movement between the magnet and coil when the case vibrates. This air damped
system operates above its natural frequency so the output is proportional to velocity.
SPECIFICATIONS
Sensitivity:
@ +77°F (+25°C*), 100 Hz, 1 IPS (25.4 mm/sec) RMS into a 10,000 ohm resistive load
Model No.
4-131-0001:
4-131-0103:
4131-0104:
4131-0105:
4-131-0106:
4-131-0109:
4-131-0116:
4-131-0120:
4-131-0123:
4-131-0125:
4-131-0128:
4-131-0141:
4-131-0148:
Frequency Range:
Mounting Orientation:
Amplitude Range:
Acceleration Range:
Sensitivity Shift w/ Position:
Temperature Range:
Thermal Coefficient of Sensitivity:
Shock:
Damped Resonant Frequency:
Excitation:
Insulation Resistance:
Polarity:
Weight:
Accessories Included:
Optional Accessories:
INSTALLATION
Rigidly attach the transducer to the equipment under test using four screws and lock washers. Be sure to tighten the screws
securely. Connect one end of cable assembly to the transducer and the other end to the vibration monitoring device.
CAUTION: Never apply in excess of 45VDC across the terminals.
REPAIR
For further information contact:
Customer Service
CEC Vibration Products
746 Arrow Grand Circle
Covina, CA 91722
Phone: 626-938-0200
Fax: 626-938-0202
Document Number: 0610440-25-0001 (Rev: D)
Sensitivity Connection Method
135 mV/ IPS (5.31 mV/mm/s) Std. 173960 / 169500-XXXX
150 mV/ IPS (5.91 mV/mm/s) Std. 173960 / 169500-XXXX
145 mV/ IPS (5.71 mV/mm/s) Int. Cable, 20 ft., prepped leads
145 mV/ IPS (5.71 mV/mm/s) Int. Cable, 6 ft., prepped leads
100 mV/ IPS (3.94 mV/mm/s) Std. 173960 / 169500-XXXX
135 mV/ IPS (5.31 mV/mm/s) Int. Cable, 15 ft., prepped leads
200 mV/ IPS (7.87 mV/mm/s) Std. 173960 / 169500-XXXX
*135 mV/ IPS (5.31 mV/mm/s) Int. Cable, 21 ft., prepped leads
*135 mV/ IPS (5.31 mV/mm/s) Std. 173960 / 365195-XXXX
135 mV/ IPS (5.31 mV/mm/s) Int. Cable, 21 ft., prepped leads
*145 mV/ IPS (5.71 mV/mm/s) Int. Cable, 21 ft., prepped leads
150 mV/ IPS (5.91 mV/mm/s) Int. Cable, 35 ft., prepped leads
135 mV/ IPS (5.31 mV/mm/s) Int. Cable, 50 ft., prepped leads
* 900°F (+482°C) version
15 – 2000 Hz
Sensitive axis is in longitudinal direction
0.07 inch (1.78 mm) pk-pk maximum
0.02 to 50 g peak
10% maximum
-65°F to +700°F optional +900°F (-54°C to +371°C optional +482°C)
0.02%/°F from +77°F (0.04%/°C from +25°C)
50 g
15 Hz nominal
Self-generating
100K ohm minimum
Pin 1 is positive when case is moved away from base.
5.8 oz (164 g) nominal
Calibration Record
Cable w/connector (P/N 169500-XXXX)
Connector (P/N 173960)