IMI Sensors: A PCB Piezotronics Division
Extreme Temperature, Hazardous Area
Approved Dynamic Charge Pressure Sensor
Designed to withstand application challenges of gas turbines
Highlights
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Detect dynamic pressure fluctuations,
pulsations, and turbulence in high static
pressure environment of gas turbine
Monitor combustion instability to prevent
high-cycle fatigue of components within and
downstream of the combustion chamber
Withstand high temperatures with
UHT-12™ crystal and hermetically sealed,
all-welded, super alloy housing
Connect easily to existing combustion
dynamics monitoring systems
Typical Applications
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Gas Turbine Monitoring
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Combustion Instability Measurement
Hazardous Area Approvals:
IMI® has developed a new Extreme Temperature, Hazardous Area Approved Dynamic
Charge Pressure Sensor Model 176A02 to be used in gas turbine applications for
monitoring of dynamic pressure phenomena. The new model extends temperature
operation to 1200 °F (649 °C) with the use of a UHT-12™ piezoelectric element and an
industrial Nickel 600 housing. The unit comes standard with a 10 foot (3 meter)
integral MI hardline cable terminating in a 7/16-27 2-pin connector.
CSA (Canada & US)
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Ex ia IIC T4…T1 Class I, Div. 1, Groups A, B, C, D
AEx ia IIC T4…T1 Class I, Div. 1, Groups A, B, C, D
Ex nL IIC T4…T1 Class I, Div. 2, Groups A, B, C, D
AEx nA IIC T4…T1 Class I, Div. 2, Groups A, B, C, D
ATEX
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Ex nA IIC T4…660°C Gc
Ex ia IIC T4…660°C Ga
IECEx
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Ex ia IIC T1 Ga
Ex ia IIC T3 Ga
Ex ia IIC T4 Ga
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Ex nA IIC T1 Gc
Ex nA IIC T3 Gc
Ex nA IIC T4 Gc
Extreme Temperature,
Charge Output Pressure Sensor
Model 176A02
visit us at www.imi-sensors.com
Toll-Free in the USA 800-959-4464
716-684-0003
Extreme Temperature, Hazardous Area Approved Dynamic Charge Pressure Sensor
Technical Specifications
Model
NumberSpecifications
Technical
Dynamic
Performance
Part Number
Sensitivity (± 20%)
Non-Linearity
Measurement Range
Maximum Pressure (Total)
Resonant Frequency
Frequency Response (±5.0%)
176A02
EX611A20
6.0 pC/psi
87 pC/bar
≤1% FS
725 psi
50 bar
2000 psi
137 bar
≥ 100 kHz
2 to 20,000 Hz
Environmental
Acceleration Sensitivity
Temperature Range (Operating)
Hazardous Area Approval
Hazardous Area Approval
Hazardous Area Approval
≤0.0036 psi/g
-94 to +1200 °F
-70 to +649 °C
CSA (C-US) NRTL Canadian Standards Association
ATEX
IECEx
3425 Walden Avenue, Depew, NY 14043-2495 USA
Toll-Free in the USA 800-959-4464
24-hour SensorLineSM 716-684-0003
Fax 716-684-3823 n Email imi@pcb.com
Website www.imi-sensors.com
ISO 9001 CERTIFIED n A2LA ACCREDITED to ISO 17025
© 2015 PCB Group, Inc. In the interest of constant product improvement, specifications are subject to change
without notice. PCB, ECHO, ICP, Modally Tuned, Spindler, Swiveler and TORKDISC are registered trademarks
of PCB Group. SoundTrack LXT, Spark and Blaze are registered trademarks of PCB Piezotronics. SensorLine
is a service mark of PCB Group. All other trademarks are property of their respective owners.
IMI-176A02-0715
Printed in U.S.A.
Model Number
176A02
Electrical
Electrical
Capacitance (With cable)
Internal Resistance (Room temperature)
Insulation Resistance (Room temperature)
Internal Resistance (1200 °F/649 °C)
Insulation Resistance (1200 °F/649 °C)
150 pF
≥1012 Ohms
≥1012 Ohms
≥50,000 Ohms
≥100,000 Ohms
Physical
Sensing Geometry
Sensing Element
Housing Material
Sealing
Cable Length
Cable Type
Cable Termination
Weight (With cable)
Compression
UHT-12TM
Nickel 600
Hermetic
10 ft
3m
MI Hardline Cable
7/16-27 2-Pin
4.6 oz
130 gm
IMI Sensors designs and manufactures a full line of accelerometers, sensors,
vibration switches, vibration transmitters, cables and accessories for
predictive maintenance, continuous vibration monitoring, and machinery
equipment protection. Products include rugged industrial ICP® accelerometers,
4-20 mA industrial vibration sensors and transmitters for 24/7 monitoring,
electronic and mechanical vibration switches, the patented Bearing Fault
Detector, high temperature accelerometers to +1300 °F (+704 °C), 2-wire
Smart Vibration Switch, and the patented Reciprocating Machinery Protector.
CE approved and intrinsically safe versions are available for most products.
Visit www.imi-sensors.com to locate your nearest sales office