177230 Seismic Transmitter
Datasheet

Bently Nevada Machinery Condition Monitoring

177232 Rev. T

Description
The 177230 Seismic Transmitter is a simple, loop-powered
device that can be quickly and easily installed. It can be
integrated into your programmable logic controller (PLC) orcontrols system linked to a plant asset condition monitoring
solution. Its simple design reduces training, maintenance,and service costs. The transducer helps you better manage
downtime, optimize maintenance planning, and avoid
unforeseen catastrophic failures of machinery assets.
The 177230 Seismic Transmitter incorporates robust CM
design for reliability and implements an industry-standard 4to 20 mA loop-powered transmitter.

Easily Installed and Integratedllllllll

Interfaces with PLCs and control systems (includingDCS and SCADA).
Requires only a short learning curve for operations andmaintenance, through a familiar interface similar tothat for connecting other PLC or control system inputs.
Requires no field configuration or adjustments.
Needs few additional parts for a complete system.
Includes technical support for customers on how tomonitor their equipment.
Includes self-test.
Incorporates protected interface.
Supports a variety of interface cables.

Data Qualitylll

Provides accurate and repeatable data.
Uses simple data format.
Provides raw vibration signal for verification andanalysis.

177230 Seismic Transmitter
Datasheet

177232 Rev. T

EHS Compliantll

Implements safe and ergonomic design.
Supports access to hazardous areas.

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

Velocity Output

Specifications

OutputSignalElectrical
Excitation
Voltage

12 to 30 Vdc(Current limited to 40 mA)

Full Scale
Range (AA)This product is for use with PLCs,DCS, and SCADA systems that haveinternal power supplies which are
typically current limited in the rangeof 30 mA to 35 mA.
SettlingTime

Less than 15 seconds within 2%of final value

MountedResonant
Frequency

Greater than 12 kHz

Transverse
Sensitivity

Less than 5% of sensitivity

SensingElement
Type

Sensitivity –Main Loop

Frequency
Response(-BB)

4 to 20 mA Current Loop fromPin A to Pin B
00 - 12.7 mm/s (0.5 in/s) ± 10%
01 - 25.4 mm/s (1.0 in/s) ± 10%
02 - 50.8 mm/s (2.0 in/s) ± 10%Full Scale, broadband RMS(Root Mean Square)
4 ± 0.3 mA equals 0.0 mm/s
20 ± 2 mA equals Full Scale
Range
01 - 10 Hz to 1 kHz ± 10%(600 cpm to 60 kcpm ± 10%)Output signal is proportional to
the RMS vibration levels.
02 - 3 Hz to 1 kHz ± 10%(180 cpm to 60 kcpm ± 10%)Output signal is proportional tothe peak vibration levels.

Acceleration Output
Ceramic / Shear

Connector Wiring Convention

OutputSignalUnbuffered Voltage from Pin
C to Pin B (Reference)

Sensitivity

10.2 mV/m/s2 (100 mV/g) ± 20%

Pin A

4-20 mA Positive Loop
(Positive with reference to Pin B)

Full Scale
Range

147 m/s2 ( 15 g) peak

Pin B

4-20 mA Loop Return(Negative Loop Return for Pin A
and common for DynamicSignal)

Frequency
Response

2.5 Hz to 10 kHz ± 10%(150 cpm to 600 kcpm ± 10%)

Linearity± 1% of Full Scale

Output Bias

2.5 V ± 0.1 V (Referenced to PinB)

Pin C

Dynamic Acceleration Signal(Unbuffered, referenced to PinB)
The Dynamic Signal Negative (Pin B)
requires isolation from any
grounding. If this terminal isgrounded, the 4-20 mA loop will
short, resulting in no output.

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

Environmental Limits

PhysicalOperating
Temperature-40°C to +85°C(-40°F to +185°F)

Weight131 g (4.62 oz), typicalElectrical
Isolation

Diameter

25.4 mm (1.00 in)

Greater than 108 ohms

Height66.0 mm (2.60 in)

Isolation
Breakdown
Voltage

600 Vrms with less than 1 mAleakage current

Case
Material

316L stainless steel

Shock
Survivability

9.810 m/s2 (1.000 g peak),maximum drop test

Connector

3-pin MIL-C-5015, 316L stainlesssteel

Mounting
Hole¼-28 UNF

MountingThreads

M6 X 1 SI
M8 x 1.25 SI¼-28 UNF

This part typically mounts directly tothe machine via a stud. Customers
can use this device with a magnetic
base, but must take care not to“snap” the unit onto the machine.
This snapping action can create avery large spike signal that candamage the electronics. Rolling themagnetic-base onto the machine
greatly reduces the spike signal sothat the unit should not have anyissues.
Sensor Seal

Hermetically sealedRelative
Humidity ofTransmitterTo 100% non-submerged

These stud adapters are provided
with each device. For additional
adapters, see Ordering Information
on page 7. Or contact Benty Nevada
Tech Support.
Mounting
TorqueLess than 20 μm/s/gauss(790 μin/s/gauss) peak
Magnetic Field Less than 14.7 mm/s2/gaussSensitivity(150 μg/gauss) peak[based on 50 gauss, 50 - 60Hz]

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4 to 7 N-m (35.4 to 62.0 in-lbf)

177230 Seismic Transmitter
Datasheet

177232 Rev. T

Compliance and Certifications
FCC
This device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:llThis device may not cause harmfulinterference.
This device must accept any
interference received, includinginterference that may cause
undesired operation.

EMC
EMC Directive 2014/30/EU

RoHS
RoHS Directive 2011/65/EU

Maritime
DNV rules for classification – Ships
DNV rules for classification – High
speed and light craft
DNV offshore standards

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

Hazardous Area Conditions ofSafe Use

Hazardous Area Approvals

ATEX/IECEx

For the detailed listing of country andproduct-specific approvals, refer tothe Approvals Quick Reference Guide(108M1756).

Zone 0/1:
Equipment must be connected to equipment,
which meets the above listed entityparameters.

For additional technicaldocumentation, please log in to
bntechsupport.com and access theBently Nevada Media Library.

The cables type A or B (in compliance with EN
60079-25) must respect the cable parameterslisted with the entity parameters.
Zone 2:cNRTLusThe supply electrical parameters shall not
exceed the values mentioned in the tablesabove.

Ex nL IIC T4:
AEx nA IIC T4:
Class I, Div 2, Groups A, B, C, D.
Ex ia IIC T4:
AEx ia IIC T4:
Class I, Div 1, Groups A, B, C, D;
Class II, Div 1, Groups E, F, G;
Class III, Div 1
Install per drawing 177234
T4 @ Ta ≤ 80°C

ATEX/IECEx
II 1 GEx ia IIC T4 Ga
II 3 GEx na IIC T4 Gc
T4@ Ta = -40°C to80°C

177230

EntityParameters

Zone 0/1

Zone 2

Ui= 28 V

Ui= 28 V

Ii= 120 mA

Ii= 120 mA

Pi= 1 W

Pi= 1 W

Ci=0
Li=121.06 µh

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

These standard lengths are available. You canorder custom lengths at additional cost.

Ordering Information
For the detailed listing of country andproduct-specific approvals, refer tothe Approvals Quick Reference Guide(108M1756).
For additional technicaldocumentation, please log in to
bntechsupport.com and access theBently Nevada Media Library.

Seismic Transmitter
177230-AA-BB-CC
A: Measurement Range00

0 – 12.7 mm/s (0 – 0.5 in/s)

01

0 – 25.4 mm/s (0 – 1.0 in/s)

02

0 – 50.8 mm/s (0 – 2.0 in/s)

10 Hz to 1 kHz (600 to 60 kcps) RMS(Root Mean Square)

02

3 Hz to 1 kHz (180 to 60 kcps) peak

10

3.1

12

3.6

15

4.5

17

5.0

20

6.0

25

7.6

30

9.0

99

30.0

16710-AA
A: Length in feet
Order in increments of 1 foot (0.3 m)
Minimum length: 3 feet (0.91 m)
Maximum length: 99 feet (30. 2m)
Example: 25 = 25 feet

C: Approvals
05

Meters(approx.)

Interconnect Cable with Armor

B: Frequency
01

Feet

These standard lengths are available. You canorder custom lengths at additional cost.

Multiple Approvals (CSA/NRTL/C,ATEX/IECEx)

Feet

Meters(approx.)08

2.4103.1

12

3.6

15

4.5

A: Length in feet

175.0

Order in increments of 1 foot (0.3 m)

206.0

Minimum length: 3 feet (0.91 m)
Maximum length: 99 feet (30.2 m)
Example: 25 = 25 feet

30

9.0

99

30.0

Only standard or common AA-BB-CC
configurations are available.

Interconnect Cable without Armor
16925-AA

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

Ordering Accessories

Studs and Adapters

You can order these accessories from thevendors named. Contact the vendor with thepart number and ask for their part that fits yourapplication.

3-Pin Connector (MIL-C-5015)

BaseShell

Wire (3-wirewith shield)

Cannon (ITT industries)
ittcannon.com
P/N: CA3106R-10SL-3S F97 or
P/N: MS3106R-10SL-3S
Sunbank Co.
sunbankcorp.com
Glenair, Inc.
glenair.com
Three-conductor 18 to 22 AWG
cables with a 0.01” minimum
outer jacket and inner wire
insulation, and 80% minimum
coverage shield. Insulation
rating should be 600 Vminimum.
Sonic/Thermax
thermaxcdt.com
18 AWG - P/N: 18-TE-1930 (3)SXE
22 AWG - P/N: 22-TE-1934 (3)SXE

Mil-W16878/4(Type E)

Standard Wire and Cable Co.
std-wire.com
18 AWG - P/N: 1100-88T
22 AWG - P/N: 1100-66T
Beldenbelden.com
18 AWG - P/N: 83336
22 AWG -P/N: 83334

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Part No.

Description

89139-01

M-M ¼-28 UNF to ⅜-24 UNF
standard stud128038-01

M-M ¼-28 UNF to ⅜-24 hex
plate stud (1-⅜” X 0.25”)

146396-01

F-M ¼-18 NPT to ¼-28
adapter

146394-01

F-M ¼-28 UNF to ¼-18 NPT
adapter

37439-01

F-M ¼-28 UNF to ¼-28 UNF
mounting base164373M-M ¼-28 UNF to ¼-28 UNF
standard stud with brass tip

135826-01

M-M ¼-28 UNF to M10 X 1.0
standard stud177230 Seismic Transmitter
Datasheet

177232 Rev. T

Graphs and Figures
Dimensions shown in mm (inches) except as noted.

Figure 1: Transducer Mechanical Outline and Dimensions

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177230 Seismic Transmitter
Datasheet

177232 Rev. T

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The information contained in this document is the property of Baker Hughes and its affiliates; and is subject tochange without prior notice. It is being supplied as a service to our customers and may not be altered or its content
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Phone: 1.775.782.3611 (US) or Bently.com/support
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