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200350 and 200355 Accelerometers
Datasheet
BentlyNevadaMachineryCondition Monitoring |
164804Rev. N |
Description
The 200350 and 200355 Accelerometers are general purpose, case-mounted seismic transducers designed for use with Trendmaster Pro Constant Current Direct Input Card, part number 149811-02 and the Seismic Direct Input Card, part number 164746-01.
The 200350 and 200355 Accelerometers are contained within a hermetically sealed, stainless steel case. The design provides an extremely rugged transducer, well suited for harsh industrial environments. Each transducer’s top mounted, 2-pin connector (MIL-C- 5015) allows for easy installation and removal of the interconnecting signal cable. A ¼-28 threaded hole on the bottom of the casing accommodates multiple mounting options.
The 200350 and 200355 Accelerometers contain a piezoelectric sensing device, which generates charge when subjected to vibration. This charge is then converted electronically to a differential voltage signal, which is proportional to the acceleration that is parallel to the sensitive axis of the transducer.
If housing measurements are being made for overall protection of the machine, consider the usefulness of the measurement for each application. Most common machine malfunctions (imbalance, misalignment, etc.) originate at the rotor and cause an increase (or at least a change) in rotor vibration. For housing measurements alone to be effective for overall machine protection, a significant amount of rotor vibration must be faithfully transmitted to the bearing housing or machine casing, or more specifically, to the mounting location of the transducer.
200350and200355Accelerometers |
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Datasheet |
164804Rev. N |
In addition, exercise care in the physical |
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Sensitivity |
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installation of the transducer. Improper |
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AmplitudeLinearity |
± 1% |
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installation can result in a degradation of |
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Mounted Resonant |
1500 kcpm |
1250 kcpm |
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the transducer’s performance and/or the |
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Frequency |
(25 kHz) |
(20.8 kHz) |
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generation of signals that do not represent |
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Broadband Electrical |
350 µg |
50 µg |
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actual machine vibration. |
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Noise |
2 |
2 |
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Upon request, we can provide engineering |
(1-10kHz) |
(3,434 µm/s ) |
(491 µm/s ) |
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Output Bias Voltage |
8 to 12 VDC |
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services to determine the suitability of |
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housing measurements for the machine in |
Excitation Voltage |
18 to 28 VDC |
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question and/or to provide installation. |
Constant Current |
2 to 20 mA |
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Excitation |
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Settling Time(within |
≤ 2.0 sec |
≤ 5.0 sec |
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1% of bias) |
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Specifications |
Output Impedance |
< 150 ohms |
< 100 ohms |
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Constant |
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DischargeTime |
≥ 0.3 sec |
≥ 0.8 sec |
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Parameters arespecified from +20to +30°C |
Electrical Isolation |
>108 ohms |
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(Case) |
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(+68to +86°F) and 100Hz unless otherwise |
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indicated. |
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CAUTION
Operation outsidethe specified limits willresultin falsereadings orloss of machinemonitoring.
Do notusesensorp/n 200350 fornegative excitation voltage(-Vex).
Electrical
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200350 |
200355 |
Sensitivity |
100 mV/g |
100 mV/g ±5% |
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±20% |
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(10.2 |
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(10.2 |
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mV/m/s^2 |
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mV/m/s^2 |
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±5%) |
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±20%) |
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Frequency Range |
30-600,000 |
12-600,000 |
cpm |
cpm |
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(±3 dB) |
(0.5-10,000 |
(0.2-10,000 |
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Hz) |
Hz) |
Measurement Range |
± 50 g |
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Transverse |
≤ 7% |
≤ 5% |
Environmental
Operating |
-65°F to +250 |
ºF |
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TemperatureRange |
(-54°C to +121 |
ºC) |
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Shock Survivability |
5,000 g pk |
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RelativeHumidity |
100% relative, condensing, |
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non-submerged |
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EnclosureRating |
IP68 |
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Physical
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200350 |
200355 |
Hex Size |
11/16” |
7/8” |
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(18 mm) |
(22mm) |
Height |
1.65” |
2.06” |
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(42.4 |
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(52.3 mm) |
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mm) |
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Weight |
1.8 oz |
3.3 oz |
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(51 |
(94 |
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grams) |
grams) |
Mounting Thread |
1/4-28 Female |
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Mounting Torque |
2 to 5 ft-lb |
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(Maximum) |
(2.7 to 6.8 N-m) |
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Sensing Element |
Ceramic |
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Sensing Geometry |
Shear |
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2/13
200350and200355Accelerometers |
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Datasheet |
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164804Rev. N |
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Hazardous Area |
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Sealing |
Welded Hermetic |
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Housing Material |
Stainless Steel |
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Approvals |
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Electrical Connector |
2-Pin Mil-C-5015 |
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Electrical Connection |
Top |
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Position |
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Forthedetailed listing of country and product |
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specific approvals, referto theApprovals Quick |
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ReferenceGuide(108M1756)availablefrom |
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Compliance and |
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Bently.com. |
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CSA/NRTL/C |
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Certifications |
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Ex nL IIC T4: |
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AEx nA IIC T4: |
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FCC |
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Class I, Div 2, Groups A, B, C, D. |
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Ex ia IIC T4: |
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177230 |
AEx ia IIC T4: |
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This devicecomplies with part 15ofthe |
Class I, Div 1, Groups A, B, C, D; |
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FCCRules. Operation is subject to the |
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Class II, Div 1, Groups E, F, G; |
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Class III, Div 1 |
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following two conditions: |
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Install perdrawing 177234 |
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• This devicemay not causeharmful |
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T4 @ Ta ≤ 80°C |
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interference. |
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Ex ia IIC T4 |
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• This devicemust accept any |
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Class I, Div 1 |
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interferencereceived, including |
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Groups A,B,C,D |
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interferencethat may cause |
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T4 @ -40°C ≤ Ta ≤ 80°C |
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undesired operation. |
200150, |
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PerDWG 167535 |
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EMC |
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200155, |
Ex nL IIC T4 |
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200157 |
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Class I, Div 2 |
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Groups A,B,C,D |
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EMCDirective2014/30/EU |
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T4 @ -40°C ≤ Ta ≤ 80°C |
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RoHS |
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PerDWG 167535 |
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Ex ia IIC T4 |
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200350 (Approval Option 1) |
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RoHS Directive2011/65/EU |
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Class I, Division 1, Groups A, B, C and D |
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AEx ia IIC T4 |
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Maritime |
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Intrinsically |
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T4 @ -54 °C ≤ Ta ≤ +121 °C |
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Class I, Division 1, Groups A, B, C and D |
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Safe |
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330400 and 330425 only |
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(-65.2 °F ≤ Ta ≤ 249.8 °F ) |
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Perdrawing 175825 |
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ABS 2009SteelVessels Rules |
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Ex nL IIC T4 |
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1-1-4/7.7,4-8-3/1.11.1,4-9-7/13 |
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Intrinsically |
Class I, Division 2, Groups A, B, C and D |
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Safeand |
AEx nA T4 |
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Non- |
Class I, Division 2, Groups A, B, C and D |
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Incendive |
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T4 @ -54 °C ≤ Ta ≤ +121 °C (-65.2 °F ≤ Ta |
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≤ +249.8 °F )perdrawing 17582 |
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3/13
200350and200355Accelerometers |
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Datasheet |
164804Rev. N |
ATEX/IECEx
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II 1 G |
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Ex ia IIC T4 Ga |
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177230 |
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II 3 G |
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Ex na IIC T4 Gc |
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T4@ Ta = -40°C to 80°C |
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Zone 0/1 |
Zone 2 |
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Ui= 28V |
Ui= 28V |
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Entity Parameters |
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Ii= 120mA |
Ii= 120mA |
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Pi= 1W |
Pi= 1W |
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Ci=0 |
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Li=121.06µh |
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II 1 G |
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Ex ia IIC T4 Ga |
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200150, 200155, |
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II 3 G |
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200157 |
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Ex na IIC T4 Gc |
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T4@ Ta = -40°C to 80°C |
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Zone 0/1 |
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Zone 2 |
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Ui= 27V |
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Ui= 27V |
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Entity Parameters |
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Ii= 150mA |
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Ii= 150mA |
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Ci=16.2 nF |
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Li= 0 |
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II 1 G |
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Ex ia IIC T4 Ga |
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200350 |
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II 3 G |
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Ex na IIC T4 Gc |
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T4@ Ta = -54°C to +121°C |
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Zone 0/1 |
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Zone 2 |
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Entity Parameters |
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Ui= 28V |
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Ui= 28V |
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Ii= 200mA |
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Ii= 200mA |
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Pi= 1W |
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Pi= 1W |
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Ci=16.2 nF
Li= 0
Hazardous Area
Conditions of Safe
Use
ATEX/IECEx
Zone 0/1:
Equipment must beconnected to equipment, which meets theabovelisted entity parameters.
Thecables typeA or B(in compliancewith EN 60079-25) must respect thecableparameters listed with theentity parameters.
Zone 2 :
Thesupply electricalparameters shallnot exceed thevalues mentioned in thetables above.
4/13
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