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3300 XL NSv* Proximity Transducer System
Bently Nevada* Asset Condition Monitoring
Description
The 3300 XL NSv* Proximity Transducer system is intended for use with centrifugal air compressors, refrigeration compressors, process gas compressors and other machines with tight installation requirements. The 3300 XL NSv Proximity Transducer System consists of:
a 3300 NSv probe
a 3300 NSv extension cable
a 3300 XL NSv Proximitor* Sensor.1
The primary uses for the 3300 XL NSv Transducer System are for areas where counter bore, sideview or rearview restrictions limit the use of standard Bently Nevada* 3300 and 3300 XL 5 and 8 mm Transducer Systems. It is also ideal for small target applications, such as measuring radial vibration on shafts smaller than 51 mm (2 in) or axial position on flat targets smaller than 15 mm (0.6 in). It is primarily used in the following applications on fluid-filmed bearing machines where a small shaft or reduced side-view is present:
Radial vibration and radial position measurements
Axial (thrust) position measurements
Tachometer and zero speed measurements
Phase reference (Keyphasor*) signals
The 3300 XL NSv Transducer System design allows it to replace both the 3300 RAM Transducer Systems and the 3000-series or 7000-series 190 Transducer System. Upgrades from the 3300 RAM system to the 3300 XL NSv system may use the existing probe, extension cable, and monitoring system with 3300 XL NSv Proximitor Sensor. Upgrades from the 3000-series or 7000-series Transducer System must replace the probe, extension cable and Proximitor Sensor with NSv components.
The 3300 XL NSv Transducer System has an Average Scale Factor of 7.87 V/mm (200 mV/mil), which is the most common output for eddy current transducers. Its enhanced side-view and small target characteristics give it a shorter linear range than the Bently Nevada 3300 XL-series 5 and 8 mm Transducer System. With The 1.5 mm (60 mils) of linear range exceeds the linear range of the 3000series 190 Transducer System.
Application Alert: Although the terminals and connector on the Proximitor Sensor have protection against electrostatic discharge, take reasonable precautions to avoid electrostatic discharge during handling.
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 1 of 30
Proximitor Sensor
The 3300 XL NSv Proximitor Sensor has similar features to those found in the 3300 XL 8 mm Proximitor Sensor. Its thin design allows the user to mount it in either a high-density DIN-rail installation or a more traditional panel mount configuration. Improved RFI/EMI immunity allows the 3300 XL NSv Proximitor Sensor to achieve European CE mark approvals without any special mounting considerations. This RFI immunity also prevents nearby high frequency radio signals from adversely affecting the transducer system. SpringLoc terminal strips on the Proximitor Sensor require no special installation tools and facilitate faster, highly robust field wiring connections.
Proximity Probe and Extension Cable
The 3300 NSv probe and extension cable are mechanically and electrically compatible and interchangeable with Bently Nevada’s previous 3300 RAM proximity probe and extension cable. The NSv probe has increased chemical resistance compared to the 3300 RAM probe, which allows its use in many process compressor applications. The side-view characteristics of the 3300 NSv probe are also superior to those of the 3000-series 190 probe when gapping the 3300 NSv probe at the same distance from the probe target.
The 3300 NSv probe comes in varying probe case configurations, including armored and unarmored ¼ -28, 3⁄8 -24, M8 X 1 and M10 X 1 probe threads. The reverse mount 3300 NSv probe comes standard with either 3⁄8 -24 or M10 X 1 threads. All components of the transducer system have goldplated brass ClickLoc* connectors. ClickLoc connectors lock into place and prevent the connection from loosening. The patented TipLoc* molding method provides a robust bond between the probe tip and the probe body. Bently Nevada’s patented CableLoc* design provides 220 N (50 lb) of pull strength and securely attaches the probe cable to the probe tip. Connector protectors are recommended for use on the probe-to-extension cable connection, as well as on the cable-to- Proximitor Sensor connection. Connector protectors prevent most liquids from entering into the ClickLoc connectors and adversely affecting the electrical signal2.
Notes:
1.Proximitor Sensors are supplied by default from the factory calibrated to AISI 4140 steel. Calibration to other target materials is available upon request.
2.Silicone tape is also provided with each 3300 NSv extension cable and can be used instead of connector protectors. Silicone tape is not recommended in applications where the probe-to- extension cable connection will be exposed to turbine oil.
Specifications
Unless otherwise noted, the following specifications are for a 3300 XL NSv Proximitor Sensor, extension cable and probe between 0°C and +45°C (+32°F to +113°F), with a -24 Vdc power supply, a 10 kΩ load, a Bently Nevada supplied AISI 4140 steel target that is 31 mm (1.2 in) diameter or larger, and a probe gap of 1.0 mm (40 mils). The system accuracy and interchangeability specifications do not apply when using a transducer system calibrated to any target other than a Bently Nevada AISI 4140 steel target.
Electrical
Proximitor
Sensor Input
Accepts one non-contacting 3300 RAM or 3300 NSv Proximity Probe and Extension Cable.
Power
Requires -17.5 Vdc to -26 Vdc without barriers at 12 mA maximum consumption, -23 Vdc to -26 Vdc with barriers. Operation at a more positive voltage than -23.5 Vdc can result in reduced linear range.
Supply Sensitivity
Less than 2 mV change in output voltage per volt change in input voltage.
Output resistance
50 Ω
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 2 of 30
Probe dc resistance:
Probe Length (m) Resistance from the Center
Conductor to the Outer Conductor (RPROBE) (ohms)
0.5 |
4.0 ± 0.5 |
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1.0 |
4.2 ± 0.5 |
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5.0 |
5.3 ± 0.7 |
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7.0 |
5.9 ± 0.9 |
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Extension |
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cable dc |
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resistance: |
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Center conductor: 0.220Ω/m |
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(0.067 Ω/ft) |
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Shield: 0.066 Ω/m (0.020 Ω/ft) |
Extension |
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cable |
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capacitance: |
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69.9 pF/m (21.3 pF/ft) typical |
Field wiring: |
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0.2 to 1.5 mm2 (16 to 24 AWG) |
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[0.25 to 0.75 mm2 (18 to 23 |
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AWG) with ferrules]. |
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Recommend using three- |
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conductor shielded triad cable. |
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Maximum length of 305 metres |
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(1,000 feet) between the 3300 |
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XL NSv Proximitor Sensor and |
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the monitor. See the frequency |
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response graphs Figure 16 and |
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Figure 17 for signal rolloff at |
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high frequencies when using |
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longer field wiring lengths. |
Linear Range: |
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1.5 mm (60 mils). Linear range |
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begins at approximately 0.25 |
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mm (10 mils) from target and is |
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from 0.25 to 1.75 mm (10 to 70 |
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mils) (approximately -1 to -13 |
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Vdc). |
Recommended |
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Gap Setting: |
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1.0 mm (40 mils) |
System performance over ambient temperature range (0°C to 45°C):
Incremental
Scale Factor (ISF)
7.87 V/mm (200 mV/mil) +12.5%/-
20% including interchangeability error when measured in increments of 0.25 mm (10 mils) over the 1.5 mm (60 mil) linear range.
Deviation from best fit straight line (DSL)
Less than ±0.06 mm (±2.3 mils).
Frequency
Response:
0 to 10 kHz: +0, -3 dB typical, with up to 305 metres (1000 feet) of field wiring.
Target Size (flat target):
Minimum: 8.9 mm (0.35 in) diameter
Recommended minimum: 13 mm (0.5 in) diameter
Axial position measurements on shaft diameters smaller than 13mm (0.5 in) will generally result in a change in scale factor. Reducing the gap between the probe and target will help limit the change in scale factor. See Figure 12 for additional information.
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 3 of 30
Shaft Diameter
Minimum (standard X-Y probe configuration): 30 mm (1.2 in)
Minimum (X-Y proximity probes offset axially by 23 mm (0.9 in)): 20 mm (0.8 in)
Measurements on shaft diameters smaller than 30 mm (1.2 in) usually require close spacing of radial vibration or axial position transducers. This creates the potential for their electromagnetic emitted fields to interact with one another (cross-talk), resulting in erroneous readings. To prevent cross-talk, maintain minimum separation of transducer tips of at least 25 mm (1.0 in) for axial position measurements or 23 mm (0.9 in) for radial vibration measurements (see Figure 14 and Figure 15 for additional information.) Radial vibration or radial position measurements on shaft diameters smaller than 20 mm (0.8 in) will generally result in greater than a 10% change in Average Scale Factor (ASF). See Figure 13 for additional information.
Counterbore
Minimum: 9.5 mm (0.375 in)
Recommended minimum: 13 mm (0.5 in)
Counterbores smaller than 13 mm (0.5 in) generally result in a change in scale factor at far gaps. Reducing the gap between the probe and the target will allow the transducer system to maintain its Average Scale Factor (ASF) over a reduced linear range. See Figure 9 for additional information.
Effects of 60 Hz Magnetic Fields Up to 300 Gauss (5 metre system):
Output voltage in mil pp/gauss:
Gap |
Proximitor |
Probe |
Ext. Cable |
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Sensor |
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0.25 mm |
0.006 |
0.001 |
0.001 |
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(10 mils) |
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1.0 mm (40 |
0.007 |
0.002 |
0.001 |
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mils) |
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1.75 mm |
0.008 |
0.002 |
0.003 |
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(70 mils) |
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Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 4 of 30
Compliance and Certifications
EMC
European Community Directives:
EMC Directive 2004/108/EC Standards:
EN61000-6-2
EN61000-6-4
Maritime
ABS 2009 Steel Vessels Rules 1-1-4/7.7, 4-8-3/1.11.1, 4-9-7/13
Hazardous Area Approvals
Note: CSA, ATEX, IECEx approvals for hazardous areas certified by Canadian Standards Association (C/US) in North America and by Baseefa for Europe and IEC Ex.
Note: For a detailed listing of country and product specific approvals, refer to the Approvals Quick Reference Guide
(document 108M1756) located at the following website: www.GEmeasurement.com.
Field Wiring Limitations:
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Type |
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Gas |
Capacitance |
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Inductance |
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L/R |
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Approval: |
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Group |
(µF) |
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(mH) |
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Ratio |
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(μH/Ω) |
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ATEX |
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IIC |
0.078 |
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0.99 |
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29.2 |
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and IEC |
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IIB |
0.645 |
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7.41 |
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117.0 |
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Zone 0/1 |
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IIA |
2.144 |
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15.6 |
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234.0 |
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CSA Div 1 |
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A & B |
0.070 |
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1.0 |
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29.2 |
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C |
0.600 |
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5.0 |
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117.0 |
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D |
2.09 |
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11.0 |
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234.0 |
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CSA Div 2 |
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All |
0.460 |
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100.0 |
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N/A |
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North America
3300 XL Proximitor Sensor and probe, ia:
Ex ia IIC T4/T5; Class I Zone 0 or Class 1; Groups A, B, C, and D, Class II, Groups E, F and G, Class III when installed with intrinsically safe zener barriers per drawing 141092 or when installed with galvanic isolators.
3300 XL Proximitor Sensor and probe, nA:
Ex nA IIC T4/T5 Class I Zone 2 or Class I, Division 2, Groups A, B, C, and D, when installed without barriers per drawing 140979.
T5 @ Ta = -35 °C to +85 °C. T4 @ Ta= -51 °C to +100 °C.
Europe
3300 XL Proximitor Sensor, ia:
II 1 G Ex ia IIC T4/T5 Ga when installed per drawing 141092.
T5 @ Ta= -35 °C to +85 °C T4 @ Ta= -51 °C to +100 °C
Ui= -28V |
Ci = 0 |
Ii= 140mA |
Li =10µH |
Pi= 0.91W |
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3300 XL Proximitor Sensor, nA:
II 3 G Ex nA IIC T4/T5 Gc when installed per drawing 140979.
T5 @ Ta= -35 °C to +85 °C T4 @ Ta= -51 °C to +100 °C
3300 XL NSv probe, ia:
II1 G Ex ia IIC T1…T5 Ga, (see
1:Temperature Schedule) when installed per drawing 142491.
Ui = -28V |
Ci = 1.5 nF |
Ii = 140 mA |
Li = 210 µH |
Pi = 0.91 W |
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3300 XL NSv probe, nA:
II3 G Ex nA IIC T1…T5 Gc, (see
1:Temperature Schedule) when installed per drawing 142491.
Ui = -28V
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 5 of 30
IEC Ex
3300 XL Proximitor Sensor, ia:
Ex ia IIC T4/T5 Ga
T5 @ Ta= -35 °C to +85 °C T4 @ Ta= -51 °C to +100 °C
Ui= -28V |
Ci = 0 |
Ii= 140mA |
Li =10µH |
Pi= 0.91W |
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3300 XL Proximitor Sensor, nA:
Ex nA IIC T4/T5 Gc
T5 @ Ta= -35 °C to +85 °C T4 @ Ta= -51 °C to +100 °C
Ui = -28V
3300 XL
NSv Eddy
Current Probe, ia:
Ex ia IIC T1…T5 Ga (see Table 1: Temperature Schedule)
Ui = -28V |
Ci = 1.5 nF |
Ii = 140 mA |
Li = 210 µH |
Pi = 0.91 W |
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3300 XL
NSv Eddy
Current
Probe, nA:
Ex nA IIC T1…T5 Gc (see Table 1:
Temperature Schedule)
Ui = -28V
Hazardous Area Conditions of Safe Use:
ATEX:
Follow the conditions of safe use included on the Declaration of Conformance sent with each product.
Canadian
Standards
Association (CSA):
Division 1 (Intrinsically safe): Install per Bently Nevada drawing 141092.
Division 2 (non-Incendive): Install per Bently Nevada drawing 140979.
IECEx:
Zone 0 (Intrinsically safe): The Proximitor Sensor must be installed to minimize the risk of impact or friction with other metallic surfaces.
Zone 2 (non-Incendive): The probe must be supplied from a voltage-limited source.
Table 1: Temperature Schedule
Temperature |
Ambient Temperature |
Classification |
(Probe Only) |
T1 |
-51ºC to +232ºC |
T2 |
-51ºC to +177ºC |
T3 |
-51ºC to +120ºC |
T4 |
-51ºC to +80ºC |
T5 |
-51ºC to +40ºC |
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 6 of 30
Mechanical
Probe Tip
Material:
Polyphenylene sulfide (PPS).
Probe Case
Material:
AISI 304 stainless steel (SST).
Probe Cable Specifications:
75 Ω coaxial, fluoroethylene propylene (FEP) insulated probe cable in the following total probe lengths: 0.5, 1, 5, or 7 metres.
Extension Cable Material:
75 Ω coaxial, fluoroethylene propylene (FEP) insulated.
Proximitor Sensor Material:
A380 aluminum
System
Length:
5 or 7 metres including extension cable
Extension Cable Armor (optional):
Flexible AISI 302 SST with/without FEP outer jacket.
Tensile
Strength (maximum rated):
220 N (50 lb) probe case to probe lead. 220 N (50 lb) at probe lead to extension cable connectors. 220 N (50 lb) probe case to stainless steel armor.
Connector material:
Gold-plated brass
Recommended case hole and tap size for 1/4- 28 case
Drill Size
0.213 in
Hole Size
0.218 to 0.222 in
Hole Depth
0.376 to 0.750 in
Tap Drill Size
#3
Recommended case hole and tap size for M8x1 case
Drill Size
7.4mm
Hole Size
7.511 to 7.622 mm
Hole Depth
12 to 24 mm
Tap Drill Size
L
Recommended case hole and tap size for 3/8- 24 case
Drill Size
0.332 in
Hole Size
0.338 to 0.343 in
Hole Depth
0.562 to 0.xxx1.125 in
Tap Drill Size
Q
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 7 of 30
Recommended case hole and tap size for M10x1 case
Drill Size
9.4mm
Hole Size
9.541 to 9.662 mm
Hole Depth
15 to 30 mm
Tap Drill Size
U
Connector-to-connector torque
Probe case |
Maximum Rated |
Recommended |
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torque: |
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¼ -28 or M8x1 |
7.3 N•m |
5.1 N•m |
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probe cases |
(65 in•lb) |
(45 in•lb) |
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3/8-24 or M10x1 |
33.9 N•m |
11.3 N•m |
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probe cases |
(300 in•lb) |
(100 in•lb) |
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3/8-24 or M10x1 |
22.6 N•m |
7.5 N•m |
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probe cases – |
(200 in•lb) |
(66 in•lb) |
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first three |
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threads |
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Reverse mount |
22.6 N•m |
7.5 N•m |
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probes |
(200 in•lb) |
(66 in•lb) |
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Recommended torque:
Finger tight
Maximum torque:
0.56 N• m (5 in• lb)
Minimum Bend Radius (with or without sst armor):
25.4 mm (1.0 in)
System Weight (typical):
Probe:
Approximately 14 to 150 g (0.5 to 5.3 oz)
Extension Cable:
45 g/m (0.5 oz/ft)
Armored
Extension Cable:
64 g/m (0.7 oz/ft)
Proximitor Sensor:
255 g (9 oz)
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 8 of 30
Environmental Limits
Probe Temperature Range
Operating
Temperature:
-34°C to +177°C (-30°F to
+351°F)
Storage
Temperature:
-51°C to +177°C (-60°F to
+351°F)
Note: Exposing the probe to
temperatures below -34°C (-30°F) for a sustained period of time may cause premature failure of the pressure seal.
Extension Cable Temperature Range
Operating and
Storage
Temperature:
-51°C to +177°C (-60°F to
+351°F)
Proximitor
Sensor
Temperature
Range
Operating
Temperature:
-51°C to +100°C (-60°F to
+212°F)
Storage
Temperature:
-51°C to +105°C (-60°F to
+221°F)
Relative
Humidity:
Probe Pressure:
3300 NSv probes are designed to seal differential pressure between the probe tip and case. The probe sealing material consists of a Viton® O-ring. Probes are not pressure tested prior to shipment. Contact our custom design department if you require a test of the pressure seal for your application
Note: It is the responsibility of the customer or user to ensure that all liquids and gases are contained and safely controlled should leakage occur from a proximity probe. In addition, solutions with high or low pH values may erode the tip assembly of the probe causing media leakage into surrounding areas. Bently Nevada Inc. will not be held responsible for any damages resulting from leaking 3300 NSv Proximity Probes. In addition, 3300 NSv Proximity Probes will not be replaced under the service plan due to probe leakage.
Patents:
5,016,343
5,126,664
5,351,388
5,685,884
Components or procedures described in these patents apply to this product.
100% condensing, nonsubmersible when connectors are protected. Tested to IEC 68- 2-3 damp heat.
Specifications and Ordering Information
Part Number 147385-01
Rev. H (08/15)
Page 9 of 30
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