The Bently Nevada 350500-00-00-00-11-00 is a Dynamic Pressure Charge Amplifier (DPCA) designed as a fundamental signal conditioning component for specialized gas turbine monitoring applications. Its primary function is to monitor high-frequency pressure pulsations that manifest due to combustion instability inside industrial gas turbine engines.
The complete sensing system encompasses a charge-coupled piezoelectric pressure sensor, a specialized low-noise interconnect cable, the 350500 charge amplifier, and an external monitoring device. The high-temperature piezoelectric sensor converts detected dynamic pressure fluctuations into a raw electrostatic charge signal scaled in pico-coulombs per unit of pressure (pC/psi or pC/bar). The 350500-00-00-00-11-00 interfaces with this sensor to convert the high-impedance charge signal into a low-impedance voltage output. This processed voltage signal is fully compatible with rack-mounted monitoring devices, such as the Bently Nevada 3500/64 Dynamic Pressure Monitor. The standard electrical interface from the monitor to the charge amplifier supplies -24 Vdc power, instrument common, and signal return paths over the exact same structural wiring layout utilized by standard Bently Nevada proximity probe systems.
The configuration for model 350500-00-00-00-11-00 is derived directly from the official product breakdown options:
| Category | Parameter | Specification |
| Manufacturer | Brand | Bently Nevada |
| Model / Suffix | Part Number | 350500-00-00-00-11-00 |
| Power Requirements | Voltage (Without Safety Barriers) | -19.60 Vdc to -26 Vdc (at the module) |
| Voltage (With Safety Barriers) | -17.75 Vdc to -26 Vdc (at the module) | |
| Supply Current (No Load) | 14.68 mA maximum, 11.69 mA typical | |
| Input Parameters | Input Sensitivity (Option 00) | 16 pC/psi (232 pC/bar) |
| Expected Pole-Pole Capacitance | 60 to 90 picofarads | |
| Output Parameters | Output Sensitivity (Option 00) | 100 millivolt/psi (1.45 Volt/bar) ±2% @ 150 Hz |
| Dynamic Range | ±50 psi pk | |
| Common Mode Rejection Ratio | -40 dB or better in the passband | |
| Output Resistance | 50 ohm typical | |
| Physical Characteristics | Weight | 246 grams (8.7 oz) |
| Mounting Type | 35 mm DIN rail mount | |
| Environmental Limits | Operating Temperature | -20 Celsius to +70 Celsius (-4 Fahrenheit to +158 Fahrenheit) |
| Storage Temperature | -40 Celsius to +85 Celsius (-40 Fahrenheit to +185 Fahrenheit) | |
| Humidity Bounds | 0% to 95% relative humidity, non-condensing | |
| Field Connections | Power/Signal Connector Type | Three-conductor SpringLoc terminal strip |
| Wire Size (Without Ferrules) | 0.2 mm2 to 1.5 mm2 (16 to 24 AWG) | |
| Wire Size (With Ferrules) | 0.25 mm2 to 0.75 mm2 (18 to 23 AWG) | |
| Recommended Cable Type | Three-conductor shielded triad | |
| Maximum Monitor Loop Distance | 305 meters (1000 feet) | |
| Sensor Interface | Sensor Connector Type | Three-pin MIL Connector MS31128-3P (mates to MS3116F8-3S or equivalent) |
| Terminal / Connector | Function |
| SpringLoc Terminal 1 | Power Input (-24 Vdc nominal power feed from rack monitor) |
| SpringLoc Terminal 2 | Instrument Common (Signal ground and return reference) |
| SpringLoc Terminal 3 | Low-Impedance Voltage Signal Output to monitoring system |
| MS31128-3P MIL Connector | Three-pin dedicated input interfacing with low-noise piezoelectric sensor cable |
| Category | Parameter | Specification |
| Manufacturer | Brand | Bently Nevada |
| Model | Part Number | 350500 DIN Mount Option |
| Datasheet Document | Document Number | 145828 Rev. W |
| Mechanical Dimensions | Height | 2.79 inches MAX (70.9 mm) |
| Width (Standard Base) | 3.52 inches MAX (89.4 mm) | |
| Width (Extended/Interface Base) | 3.63 inches MAX (92.2 mm) | |
| Total Depth | 1.25 inches MAX (31.8 mm) | |
| Mounting Hardware | Profile Type | Standard 35 mm DIN rail mount footprint |
What is the core function of the 350500 charge amplifier?
It converts high-impedance electrostatic charge signals generated by a piezoelectric pressure sensor into a stable, low-impedance voltage output.
What specific industrial problem does this module help detect?
It monitors high-frequency dynamic pressure pulsations caused by combustion instability inside gas turbine environments.
What is the factory-configured input sensitivity of this specific part number?
This specific unit (Option 00) is set for an input sensitivity of 16 pC/psi (232 pC/bar).
What output sensitivity is delivered by this charge amplifier?
It outputs a low-impedance voltage signal calibrated to 100 millivolts/psi (1.45 Volts/bar).
What type of sensor connector does this exact configuration utilize?
It is built with a standard 3-pin MIL Connector (MS31128-3P), which mates directly with an MS3116F8-3S connector or its equivalent.
How does the unit receive operating power?
It draws power over a standard 3-wire system configuration from the rack monitor, operating between -19.60 Vdc and -26 Vdc under standard non-barrier loop conditions.
What is the maximum field wiring distance permitted to the monitoring rack?
The maximum allowable run for the three-conductor shielded triad cable is 305 meters or 1000 feet.
What type of terminal blocks are used for field wiring on the unit?
The card features a three-conductor SpringLoc terminal strip that accepts wire gauges up to 16 AWG without ferrules.
Does this specific part number carry hazardous area approvals?
No, suffix option 00 dictates that this specific model variation is shipped with no hazardous area approval certifications.
What rack monitoring module interfaces with this charge amplifier?
It is fully compatible with standard machinery monitoring systems, such as the Bently Nevada 3500/64 Dynamic Pressure Monitor card.
What is the nominal pole-to-pole capacitance range for this input layout?
The nominal pole-to-pole tracking capacitance value for the 16 pC/psi input selection is 60 to 90 picofarads.
Global Express Shipping
Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 350500-00-00-00-11-00
Country of origin:United States
Product Type: Dynamic Pressure Charge Amplifier
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 810g
Dimensions: 70.9 mm x 89.4 mm x 31.8 mm
Shipping port: Xiamen
Warranty: 12 months
The Bently Nevada 350500-00-00-00-11-00 is a Dynamic Pressure Charge Amplifier (DPCA) designed as a fundamental signal conditioning component for specialized gas turbine monitoring applications. Its primary function is to monitor high-frequency pressure pulsations that manifest due to combustion instability inside industrial gas turbine engines.
The complete sensing system encompasses a charge-coupled piezoelectric pressure sensor, a specialized low-noise interconnect cable, the 350500 charge amplifier, and an external monitoring device. The high-temperature piezoelectric sensor converts detected dynamic pressure fluctuations into a raw electrostatic charge signal scaled in pico-coulombs per unit of pressure (pC/psi or pC/bar). The 350500-00-00-00-11-00 interfaces with this sensor to convert the high-impedance charge signal into a low-impedance voltage output. This processed voltage signal is fully compatible with rack-mounted monitoring devices, such as the Bently Nevada 3500/64 Dynamic Pressure Monitor. The standard electrical interface from the monitor to the charge amplifier supplies -24 Vdc power, instrument common, and signal return paths over the exact same structural wiring layout utilized by standard Bently Nevada proximity probe systems.
The configuration for model 350500-00-00-00-11-00 is derived directly from the official product breakdown options:
| Category | Parameter | Specification |
| Manufacturer | Brand | Bently Nevada |
| Model / Suffix | Part Number | 350500-00-00-00-11-00 |
| Power Requirements | Voltage (Without Safety Barriers) | -19.60 Vdc to -26 Vdc (at the module) |
| Voltage (With Safety Barriers) | -17.75 Vdc to -26 Vdc (at the module) | |
| Supply Current (No Load) | 14.68 mA maximum, 11.69 mA typical | |
| Input Parameters | Input Sensitivity (Option 00) | 16 pC/psi (232 pC/bar) |
| Expected Pole-Pole Capacitance | 60 to 90 picofarads | |
| Output Parameters | Output Sensitivity (Option 00) | 100 millivolt/psi (1.45 Volt/bar) ±2% @ 150 Hz |
| Dynamic Range | ±50 psi pk | |
| Common Mode Rejection Ratio | -40 dB or better in the passband | |
| Output Resistance | 50 ohm typical | |
| Physical Characteristics | Weight | 246 grams (8.7 oz) |
| Mounting Type | 35 mm DIN rail mount | |
| Environmental Limits | Operating Temperature | -20 Celsius to +70 Celsius (-4 Fahrenheit to +158 Fahrenheit) |
| Storage Temperature | -40 Celsius to +85 Celsius (-40 Fahrenheit to +185 Fahrenheit) | |
| Humidity Bounds | 0% to 95% relative humidity, non-condensing | |
| Field Connections | Power/Signal Connector Type | Three-conductor SpringLoc terminal strip |
| Wire Size (Without Ferrules) | 0.2 mm2 to 1.5 mm2 (16 to 24 AWG) | |
| Wire Size (With Ferrules) | 0.25 mm2 to 0.75 mm2 (18 to 23 AWG) | |
| Recommended Cable Type | Three-conductor shielded triad | |
| Maximum Monitor Loop Distance | 305 meters (1000 feet) | |
| Sensor Interface | Sensor Connector Type | Three-pin MIL Connector MS31128-3P (mates to MS3116F8-3S or equivalent) |
| Terminal / Connector | Function |
| SpringLoc Terminal 1 | Power Input (-24 Vdc nominal power feed from rack monitor) |
| SpringLoc Terminal 2 | Instrument Common (Signal ground and return reference) |
| SpringLoc Terminal 3 | Low-Impedance Voltage Signal Output to monitoring system |
| MS31128-3P MIL Connector | Three-pin dedicated input interfacing with low-noise piezoelectric sensor cable |
| Category | Parameter | Specification |
| Manufacturer | Brand | Bently Nevada |
| Model | Part Number | 350500 DIN Mount Option |
| Datasheet Document | Document Number | 145828 Rev. W |
| Mechanical Dimensions | Height | 2.79 inches MAX (70.9 mm) |
| Width (Standard Base) | 3.52 inches MAX (89.4 mm) | |
| Width (Extended/Interface Base) | 3.63 inches MAX (92.2 mm) | |
| Total Depth | 1.25 inches MAX (31.8 mm) | |
| Mounting Hardware | Profile Type | Standard 35 mm DIN rail mount footprint |
What is the core function of the 350500 charge amplifier?
It converts high-impedance electrostatic charge signals generated by a piezoelectric pressure sensor into a stable, low-impedance voltage output.
What specific industrial problem does this module help detect?
It monitors high-frequency dynamic pressure pulsations caused by combustion instability inside gas turbine environments.
What is the factory-configured input sensitivity of this specific part number?
This specific unit (Option 00) is set for an input sensitivity of 16 pC/psi (232 pC/bar).
What output sensitivity is delivered by this charge amplifier?
It outputs a low-impedance voltage signal calibrated to 100 millivolts/psi (1.45 Volts/bar).
What type of sensor connector does this exact configuration utilize?
It is built with a standard 3-pin MIL Connector (MS31128-3P), which mates directly with an MS3116F8-3S connector or its equivalent.
How does the unit receive operating power?
It draws power over a standard 3-wire system configuration from the rack monitor, operating between -19.60 Vdc and -26 Vdc under standard non-barrier loop conditions.
What is the maximum field wiring distance permitted to the monitoring rack?
The maximum allowable run for the three-conductor shielded triad cable is 305 meters or 1000 feet.
What type of terminal blocks are used for field wiring on the unit?
The card features a three-conductor SpringLoc terminal strip that accepts wire gauges up to 16 AWG without ferrules.
Does this specific part number carry hazardous area approvals?
No, suffix option 00 dictates that this specific model variation is shipped with no hazardous area approval certifications.
What rack monitoring module interfaces with this charge amplifier?
It is fully compatible with standard machinery monitoring systems, such as the Bently Nevada 3500/64 Dynamic Pressure Monitor card.
What is the nominal pole-to-pole capacitance range for this input layout?
The nominal pole-to-pole tracking capacitance value for the 16 pC/psi input selection is 60 to 90 picofarads.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Blue
|
| Country of origin |
United States
|
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