TXR5521 RPM Transmitter0 pages

Proximity Transmitters
PROXIMITY PRODUCTS
TXR5521 RPM Transmitter
Combined Probe Driver & Signal Conditioner
for RPM or Phase Reference
Features
•t
•t
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4-20 mA proportional to shaft RPM
Sensing to 177°C with PP Series Probe
Dynamic output for vibration phase
reference used in analysis
Full scale range from 5 RPM to 300,000
tRPM
The Model TXR5521 is a 2-wire transmitter operating on a nominal power
of +24 Vdc. The unit operates with an eddy current proximity probe to
sense a keyway or gear teeth on a rotating shaft and provides a 4-20
mA output proportional to shaft RPM. The transmitter is factory preset
by complete model number. The full scale RPM can be set from 5 to
300,000 RPM and pulses/revolution set from 1 to 99. The minimum
RPM resolution is a function of the number of pulses/revolution: the
number of pulses per revolution times the maximum RPM desired must
be less than or equal to 300,000.
Specifications
Function: Loop powered transmitter
operates with a non-contact proximity
probe/cable to convert shaft rotation
in revolutions per minute (RPM) to a
proportional 4-20 mA output signal.
Probe Gap: 1.25 mm [50 mils].
Temperature Limits: -40° to 85°C
Isolation: 500 Vrms, circuit to case
Proximity Probe/Cable: Available for
any standard probe cable combination,
Can be factory-calibrated for any probe
and/or cable.
Pulses/Revolution: 1 to 99 pulses/
revolution (300,000 pulses/minute
maximum). See How To Select for
factory preset options.
RPM Range (4-20 mA output): From
5 to 300,000 RPM. See How To Select
for factory preset options.
Loop Supply Voltage (Vs): 17 volts to
30 Vdc
Standard Target Material: 4140 steel
shaft keyway or gear teeth. Custom
calibration available for other
materials, please consult factory.
Test Output (AC & DC):
Access: Via terminals and BNC
Isolation: 10K ohm from 4-20 mA loop
Sensitivity: 7.87 mV/micron (200mV/mil)
Maximum Load Resistance (RL):
RL=50 x (Vs -17.0) Ohms
Housing: Polymer internally coated for
RFI/EMI protection.
Hazardous Area Ratings:
• CSA Certified: Intrinsically Safe Class
I, Div 1, Grps A, B, C & D, Temp
Code T4.
• CSA Certified: Non-Incendive Class
I, Div 2, Grps A, B, C & D
• BASEEFA Certified: Intrinsically Safe
Ex ia IIC T4, Non-Incendive Ex ia
IIC T4
Typical Application Diagrams (probe shown only)
TYPICAL GAP
1.25 mm ±250 uM
(50 mils ±10 mils)
PROBE
12 TOOTH GEAR =
12 PULSES/REVOLUTION
1.24
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