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PRECISION 28000
Signal Conditioning
System
 
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The Precision 28000 Signal Conditioning System
provides up to 256 channels of fully programmable transducer conditioning.
Condition a mix of Charge, IEPE w/TEDS, Bridge, Dynamic Strain, Voltage, F-to-V,
and others.
Bridge Conditioner
Dynamic Strain Conditioner
Charge/IEPE Amplifier for Shock and Vibration
Charge/IEPE Amplifier for Rotating Machinery
General Purpose Vibration Measurements
Voltage Conditioners
Thermocouple Conditioner
Frequency to Voltage Conditioner
Bridge Conditioner
28104A
Quad Bridge Conditioner
The
28104A Quad Bridge Conditioner offers four channels of conditioning to
support a wide variety of transducers including those that require constant
voltage excitation in a bridge configuration such as strain gages and pressure
transducers. The 28104A is easily configured to operate as a precise voltage
filter/amplifier on low-level AC or DC voltage inputs.
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Dynamic Strain Conditioner
28454A Quad Conditioner
with Balanced Current Excitation
The 28454A Quad Conditioner with Balanced Current Excitation
accommodates single arm static or dynamic strain gages, RTDs or other resistive
transducers that require constant current to excite them. A unique balanced
excitation circuit delivers accurate current yet has excellent immunity to noise
pickup. Accurate dynamic strain measurements may be made using only a 2-wire
interface to the transducer. Gain is programmable to x8192.
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Charge/IEPE Amplifier for Shock and Vibration
28314 Quad Channel Wideband Charge/IEPE Conditioner
The 28314 Quad Channel Wideband Charge/IEPE Conditioner
provides signal conditioning for both Charge or IEPE type sensors. The
28314 features 200kHz filtered and 500kHz wideband bandwidth for shock and
vibration applications. In charge mode, ultra low drift and very large time
constant circuits allow for both quasi-static charge measurements and accurate
dynamic peak measurements. In IEPE mode, the 28314 is equipped with
Precision Filters’ long-distance TEDS (LDTEDS) capability and features
programmable IEPE current to 25 mA. The card is equipped with 4 or 8-pole
programmable filtering and programmable gain to x8192.
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Charge/IEPE Amplifier for Rotating Machinery
28302B Dual Vibration Amplifier
The 28302B Dual Vibration Amplifier is designed
to condition signals from rotating machinery. The card accepts inputs from single-ended or
differential piezoelectric accelerometers, IEPE accelerometers, or remote
velocity sensors. AC outputs are provided for acceleration, velocity and
displacement. A DC output for acceleration, velocity or displacement is also
provided. A fully programmable 12-pole band-pass filter is provided to eliminate
unwanted noise.
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General Purpose Vibration Measurements
28316B 16-Channel Long Distance
TEDS/IEPE Accelerometer Conditioner
The 28316B 16-Channel Long Distance TEDS/IEPE
Accelerometer Conditioner provides signal conditioning for either TEDS
equipped or traditional IEPE sensors. Ideal for modal and structural analysis
applications, the 28316B card is equipped with
Precision Filters’ long-distance TEDS (LDTEDS) technology that extends
communication with TEDS equipped sensors to 1500 feet. The card supports
programmable filtering, gain and IEPE current. In addition, sensor open, short
and bias level are monitored and reported.
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27304 Quad Dual Mode Charge Amplifier
The 27304 Quad Dual-Mode Charge Amplifier
supports the two common piezoelectric transducer types, charge and voltage (IEPE),
providing flexibility for use in a wide range of applications including
vibration measurements. Programmable gain of up to x4096 is provided. The 27304
accommodates both isolated and grounded inputs.
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Voltage Conditioners
28608B Octal Programmable Filter/Amplifier
The 28608B Octal Programmable Filter/Amplifier
card is ideal for conditioning low-level voltage inputs in front of
high-resolution digital data acquisition systems. Low-pass, high-pass and
band-pass configurations are available. Programmable pre- and post-filter
amplifiers provide an overall gain of 8192.
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27708A Octal AC/DC Amplifier
27708A Octal AC/DC Amplifier card provides eight
high-performance programmable AC/DC amplifiers. These low-noise, low-drift
amplifiers provide gain from x1/16 to x4096.
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Thermocouple Conditioner
28208 Octal Thermocouple Conditioner
The 28208 Octal Thermocouple Conditioner
provides eight channels of conditioning for thermocouples or other DC
and AC voltage inputs. The 28208 consists of a low-drift programmable
differential pre-amplifier, a 3-pole programmable filter and a
programmable post-amplifier. A rugged remote isothermal block with
digital temperature sensor provides the reference junction temperature
for hardware correction.
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Frequency to Voltage Converter
28524 Quad-Channel Frequency to Voltage Converter
Module
The 28524 Quad Frequency-to-Voltage Converter
Module provides conditioning for pulse, rate and frequency
transducers, giving a voltage output proportional to input frequency or
rate for frequencies from 1 Hz to 50 kHz with inputs from 10 mV to 100
V. Distorted inputs such as signals with ringing, crossover or harmonic
distortion are handled with programmable trigger threshold and trigger
hold-off time.
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Download specifications from the Reference
Library
Request
Product Information
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Reference
The following Specifications
are available in Precision Filters'
On-line Library
for downloading:
28104A Quad Bridge Conditioner
Specifications
28454A Quad Conditioner Specifications
28314 Quad Dynamic Charge/IEPE Conditioner
with LDTEDS
27304 Quad Dual Mode Charge Amplifier
28316B 16-Channel TEDS/IEPE Accelerometer
Conditioner
28608B Octal Programmable Filter Amplifier
27708A Octal
AC/DC Amplifier
28208 Octal Thermocouple Conditioner
28524 Quad Channel Frequency to Voltage
Converter
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