Orbit DCM
Datasheet

Bently Nevada Machinery Condition Monitoring

175M5867 Rev. D

Description
Orbit Distributed Condition Monitoring (DCM) is a high speed,
synchronous, and distributed condition monitoring solution at
the edge for plantwide connectivity.
Bently Nevada’s advanced signal processing algorithms,
combined with machine operating state evaluation andversatile high resolution data collection capabilities, enable
greater asset reliability and diagnostic capabilities whencoupled with System 1 for a complete solution.
Key benefits of Orbit DCM include:llllllllll

Reliable and robust signal processing
Simultaneous channel samplingo 16 Dynamic Channels
o 4 Speed (Keyphasor)o 4 Digital Inputs
System 1 configurability
Offline data retention
High-speed state evaluation
4-severity level alarmingHigh resolution data capture (flight recorder)
10/100/1000 BASE-T RJ45 and RS485 Interfaces
Modbus client/server support on TCP and RTU
Industrial rated CSA CID2, ATEX/IECEx Zone 2Benefits of using Orbit DCM include:
llll

Supports many common sensor types
Improved planning for maintenance schedules
Early detection of machine or process issues
Cost savings from reduced machinery downtime

Orbit DCM combined with System 1 supports a conditionbased maintenance program that identifies problems before
assets begin to fail.

Orbit DCM
Datasheet

175M5867 Rev. D

Figure 1: Orbit DCM

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Orbit DCM
Datasheet

175M5867 Rev. D

Speed/Keyphasor Channels

Specifications

KPH 1-4 are dedicated Speed/Keyphasor
Channels.

Input Channel Specifications

Each Speed Channel supports magnetic pickup sensors, Proximitors, tachometers, andencoders as speed inputs. Speed Channels
support multiple events per revolution andspeed ratios for multiple shafts.

Dynamic Channels
Channels 1-16 are dedicated Dynamic
Channels that can be used to measurevibration and process signals.
Users can configure Dynamic Channels as any
one of the following transducer channel
types: Acceleration, Velocity, Radial Vibration(Displacement), Thrust (Axial Displacement),
Dynamic Pressure, and Dynamic Process
Variable.

Total KPH
Channels

4Signal Range

3.5 V to -23 V-50 V to +50 V(magnetic pickups)

Total DynamicChannels

16Input
Impedance

10 KΩ

Signal Range+22 V to -22 V

Speed Range

1 to 120,000 RPMSupports multiple events per
revolution up to a maximumof 20 kHz.

+10 V to -10 V
DynamicRange

108 dB @ fs = 102.4 ksps

A/D Sampling

102.4 ksps

Bandwidth

0 to 40 KHzAccuracy

AC (Direct pk, rms): 1.5%
relative of full scale

Speed
Accuracy±0.1 RPM at 1 RPM-100 RPM±1 RPM at 100 RPM-10,000
RPM
0.1% for speed > 10,000 RPM

DC (Gap, Bias): 2.5% relativeof full scale

Events per
Revolution(EPR)

1 to 5,000 (configurable)

Input
Impedance

100 KΩ

InputFrequency

Up to 20 kHz

IEPE Sensors

10 mA Power Supplied, 0 V20 V

Auto Threshold

Use for any input above 3
RPM for 1 event/revolution.
Keyphasor Pulse Width must
be greater than or equal to10 micro-seconds.

Orbit DCM only provides 10 mA power(constant current) for IEPE Sensors.
Proximitors, Accelerometers, andSensors that require power must beexternally powered. For more
information, refer to the Orbit DCM
Field Wiring Diagrams (document
175M6282).

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Orbit DCM
Datasheet

ManualThreshold

175M5867 Rev. D

User selectable from +3 V to-22 V.
Use for any input above 1
RPM for 1 event/revolution.
Keyphasor Pulse Width must
be greater than or equal to 5
micro-seconds.

SignalAmplitude

Minimum 5 Vpp for pulsewidth less than 10 microseconds and greater than orequal to 5 micro-seconds.

5 V TTL Compatible (High:Open Drain)

Supported
Waveforms &Spectra(Dynamic Data)

Asynchronous,Synchronous,Demodulation (PeakDemod and Eclassicalgorithms)

Spectrum
Window
Techniques

Flat Top, Hanning,Blackman, RectangularTime-Based

For waveforms: up to 12,800
For spectra: up to 3,200

Static data: every 30
seconds
Dynamic data: every 10minutes

Measurements
Direct, Bias, Speed, Gap,RMS, Integrated, nX,Bandpass

125 Hz to 20 KHz

Data can be historized in four different modes:
time-based, state-based, alarm data capture,and transient events.

Device Key Features

Supported
Scalar (StaticData)
Measurements

Demodulation
Bandwidth

Data Historization

DI 1-4 support digital inputs from TTL voltage
inputs, switches with varying resistance, andpotential-free contacts.

LevelsSupported

Configurable up to 32k
samples*Using System 1.

Digital Inputs (DI)

4Samples perWaveform

Supported
Spectral Lines-24 VDC, 40 mA (for each
KPH channel)

Total Digital
InputsUp to 40 KHz

Spectrum Based Spectral Overall, Energy &Extractions
Peak extractions*

Minimum 2 Vpp for pulsewidth less than 10 microseconds.
Transducer
Power Supply

SupportedFrequency
Range

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Total Storage
Buffer

7 days typicalHigh Resolution
Data Collection(Alarm DataCapture) for
ScalarMeasurements

Pre-Alarm: 10 mins. datawith 1 s resoltuion
20 s data with 100 msresolution
Post-Alarm: 1 min data with
1 s resolution
10 s data with 100 msresolution

Orbit DCM
Datasheet

175M5867 Rev. DHigh Resolution
Data Collection(Alarm Data
Capture) for
Dynamic
Measurements

Pre-Alarm: 2.5 mins datawith 10 s resolution

Transient Data
CaptureTime Based and RPM Baseddata collection for Start-up/ Shutdown, Overspeed (upto 50 ms resolution)

Communication Protocols

Post-Alarm: 1 min data with
10 s resolution

System 1Protocol

Bently Nevada Proprietory
protocol for communication
with S1 and Orbit Studio

Modbus TCP/IP
Client/Server

For data imports and exports
from external controllers &DCS via Ethernet

Modbus RTU
Client/Server

For data imports andexports*to external
controllers & DCS via Serial
RS485

Alarming
Setpoints perMeasurement*Modbus RTU Server is supported only for pointto-point connection for the first release.

4 Severity Levels

Device Specifications

Alarming Types In-Band, Out-of-Band, Over,Under
Alarm Latching& Reset

Available with Reset via S1
Software

AlarmProcessing

Every 1 second

Event & Data

Events generated and HiRes data storage for every
alarm

Input Power

State Evaluation

Input Voltage
Range

18-32 Vdc, 24 Vdc Nominal

OperatingCurrent

1.76 A max., Steady State

OperatingPower

26.4 W

Maximum
Inrush Current

2.5 A, 5 ms max. duration

Overvoltage
Category

OVC 1Maximum
User-DefinedStates

12 states

TriggerDefinitionUser configurable on Scalar
Measurements & Status

Ethernet Ports (Independent)

Data Storage

Hi-Res data storage for StatechangeNetwork A

RJ45, 10/100/1000 BASE-T,
Network DHCP Port

StateEvaluation

Every 1 second

Network B

RJ45, 10/100/1000 BASE-T,
Local Static IP

State-Based
Alarming

State-based alarming onevery Scalar measurement

Network C

RJ45, 10/100/1000 BASE-T,
Local Static IP

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Orbit DCM
Datasheet

175M5867 Rev. D

Environmental Limits

RS485 (Serial)
Baud Rate

Up to 115,200

Full Scale DataRange

1 to 65,535

OperatingTemperature-30°C to 55°C (-22°F to 149°F)
when installed in IP66
Weatherproof (WP) housing(P/N 178M6853)†

Module1 to 255
Address Range
Cable Length

Up to 75 mLEDs
Power LED
OK LED
Danger LED-30°C to 65°C (-22°F to 149°F)(EN/IES 60068-2-2)*

Indicates Device Input Power
Statusindicates when the system isfunctioning properly
indicates a Danger / Alarm
Level 4 Condition

Storage
Temperature-40°C to 85°C (-40°F to 185°F)(EN/IES 60068-2-2)

Temperature
ChangeChange rate of 1°C per
minute in accordance toEN/IEC 60068-2-1

RelativeHumidity

0% to 95% non-condensingfor operation and storage

Pollution
DegreePollution Degree 2 (workingvoltage < 30 Vrms or 60 Vdc)

IP Rating

IP20 according to EN/IEC60529 without Cabinet, IP66
in Cabinet
2000 m (6561 ft.) max.

Alert LED

indicates an Alert / Alarm Level
3 Condition

Net A

Indicates Ethernet Port A has avalid Link to end user
application

AltitudeDuringOperation

Net B

Indicates Ethernet Port B has avalid Link to end user
application*Operating temperature is measured 1 inch
below the system in natural airflow conditions.

Net C†Operating temperature is measured externalto the WP housing 1 inch below the installationin natural airflow conditions. Installing
additional heat-generating devices, such as
power supplies, may raise the temperatureinside the panel and must be avoided. For
installations in other enclosures contact BN
Tech Support.

Indicates Ethernet Port C has avalid Link to end user
application

PhysicalDimensions

Length: 291 mm (11.5 in)
Width: 211 mm (8.3 in)
Height: 79 mm (3.1 in)

Weight2.7 kg (5.9 lbs)

Mounting

DIN Rail Mounting or
Bulkhead Mounting

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Orbit DCM
Datasheet

175M5867 Rev. D*Cybersecurity

Compliance and Certifications

Security II
Designed to meet IEC 62443-4-2
Security Level 2

FCC
This device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:ll*Certification pending

This device may not cause harmfulinterference.
This device must accept any
interference received, includinginterference that may cause
undesired operation.

EMC
European Community Directive:
2014/30/EU
Standards:
EN IEC 61326-1; Electrical equipment
for measurement, control, andlaboratory use
EN 61000-6-2; Immunity for
Industrial Environments
EN 61000-6-4; Emissions for
Industrial Environments

Electrical Safety
European Community Directive:
2014/35/EU; Low Voltage Directive
Standards:
UL 61010-1
EN 61010-1
CSA C22.2 No. 61010-1-12; Safety
requirements for electricalequipment for measurement,
control, and laboratory use

ROHS
European Community Directive
2011/65/EU

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Orbit DCM
Datasheet

175M5867 Rev. D

WARNING

Hazardous Area Approvals

HAZARDOUS ENVIRONMENT

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

DO NOT DISCONNECT OR OPEN
EQUIPMENT UNLESS POWER HAS
BEEN SWITCHED OFF OR THEAREA IS KNOWN TO BE NONHAZARDOUS.

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

cNRTLusClass I, Zone 2: AEx/Ex ec IIC T4 Gc;
Class I, Division 2, Groups A, B, C, D T4
T4 @ Ta = -30°C ≤ Ta ≤ +65°C

ATEX/IECEx
II 3 G Ex ec IIC T4 Gc
T4 @ Ta = -30°C ≤ Ta ≤ +65°C

Specific Conditions of Use:
1. The device shall be installed in anadditional enclosure that provides aningress protection rating not less than
IP54 and meets the enclosure
requirements of IEC 60079-0.
2. The equipment shall only be used in anarea of not more than pollution degree 2,
as defined in IEC 60664-1.
3. Transient protection shall be provided
that is set at a level not exceeding 140% of
the peak rated voltage value at thesupply terminals to the equipment.
4. Power supplies must be Class I, Division 2or Class I, Zone 2 compliant for hazardous
area installations.
5. Tightening torque for bulkhead mounting– 11.6 in•lb or 1.3 N•m. Tightening torquefor DIN Rail mounting – 25 to 35 in•lb or2.8 to 3.95 N•m.

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Orbit DCM
Datasheet

175M5867 Rev. D

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.

Orbit DCM

Figure 1: Bulkhead Mounting Option

60M800-AA-BBB
AA:Mounting
01

Bulkhead Mounting

02

DIN Rail Mounting(35 mm x 15 mm x 1 mm)

BBB:Agency Approvals
00

None05Multiple Approvals (IECEx, ATEX,cNRTLus)

Figure 2: DIN Mounting Option

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Orbit DCM
Datasheet

175M5867 Rev. DAccessories

Spares

60X/XPS01

176M7434

Power Connector

168M9928

Dynamic Channels Input
Connector (4 channels perconnector)

168M9930

Speed Channel Input
Connector (4 channels perconnector)

168M9932(Refer to the associateddatasheet, 142M8947, fordetails.)
178M6853

138131-AAA

DIN Rail Mounting Option
Description

QTY

1316601300

DIN Rail (35 mm x 15 mm x1 mm)-330 mm Length1

174M0670

Allen Bolt

1149302

Rail Caps

2

172M8854

Washer

1

Description

QTY

174M1763-01

Mounting Brackets

2176M7418

Mounting Screws

4CAT5 CABLE**AAA is length in feet, with options: 3, 6, 10, 25,40, 50, 75, 85, 100, 120, 150, 220, 250, 320 feet

Additional Information

Bulkhead Mounting Option
P/N

NEMA 4X/IP66 WP Housing**Refer to the Operating
Temperature in Environmental
Limits on page 6.

Digital Input Connector (4channels per connector)

P/N

Industrial Power Supply
24 VDC, 240 W

The part numbers listed above are forspare parts only. These materials will
be supplied with the device
according to the ordered partnumbers.

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175M5868

Orbit DCM User Guide

175M6282

Orbit DCM Field Wiring Diagram

60X/CFG

Orbit Studio Configuration
SoftwareOrbit DCM
Datasheet

175M5867 Rev. D

Supported Sensors
Sensor Type Supported

Power

Bently Nevada PartNumbers

Channel TypeDynamic Channels
Proximitor System

External

Radial Vibration(Displacement)

3300 XL Series

Accelerometer (3 wire)

External

Acceleration1

330400, 330425,330450
23733, 24145, 350501

IEPE Sensors (2 wire)

Acceleration1,2
Velocity1,2

AM/AS Series

Transducers, Convertors, or ExternalSensors with output range
within -22V to +22V

Process
Variable2-Dynamic Pressure Sensors

External

Dynamic Pressure

350300

Thermocouples, RTD (when External
used with suitabletransmitters with VoltageOutput)3

Process Variable-Dual Output Sensor(Vibration + Temperature)

10 mA Power Supplied

10 mA for IEPE Vibration 1st Channel Sensor
Acceleration(Requires 2 DynamicChannels)

Triaxial Sensors

181M6049

2nd Channel - Process
Variable4
10 mA for IEPE Sensor

All 3 Channels Acceleration5(Requires 3 DynamicChannels)-Speed Channels
Proximitor System-24 VDC Power byDevice

Speed/KPH

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3300 XL SeriesOrbit DCM
Datasheet

175M5867 Rev. DSensor Type Supported

Power

Bently Nevada PartNumbers

Channel Type

Magnetic Pick-up Sensors6 External

Signal Range-50 V to +50 V-Tachometer, Encoders

External

Signal Range-23 V to +3.5 V-

Proximity Switches-Speed/KPH-For additional information on the sensors, refer to respective datasheets or contact the Bently Nevada technicalsupport team.
All sensors can be configured using a custom transducer configuration.
Note: Bently Nevada performs an evaluation if a non-Bently Nevada sensor is used with the device.
1Includes the ability to integrate these measurements to provide additional measurement types.
2Transmitters that provide signals in the 4-20 mA format can be used with Orbit DCM by connecting them via
converters or transmitters that convert these signals to a voltage format (refer to Field Wiring Diagrams
175M6282). These transmitters can be configured as process variables in System 1 and Orbit Studio.
3Refer to Field Wiring Diagrams 175M6282 for more information.
4Use Pin 1 for Acceleration Signal and Pin 3 for Temperature Signals.
5Use Pin 1 for all 3 input channels (Acceleration signals).
6To measure speed signals with a pulse width greater than 6 μs or amplitude greater than 2 V pk-pk at lowerspeeds, adjust the hysteresis to a lower value.

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Orbit DCM
Datasheet

175M5867 Rev. D

Graphs and Figures
Dimensions shown are in inches [millimeters].

Figure 1: General Dimensions

Figure 2: Bracket Mounting Dimensions

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Orbit DCM
Datasheet

175M5867 Rev. D

Figure 3: Minimum System Clearances for an IP65/66 Panel
For installations in which the temperature inside the panel will be maintained at 25°C, aclearance of at least 150 mm can be maintained. Contact Bently Nevada tech support for
further assistance.

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Orbit DCM
Datasheet

175M5867 Rev. D

Copyright 2024 Baker Hughes Company. All rights reserved.

Bently Nevada, Keyphasor, Orbit DCM, Proximitor, System 1 and Orbit Logo are registered trademarks of Bently
Nevada, a Baker Hughes business, in the United States and other countries. The Baker Hughes logo is a trademark ofBaker Hughes Company. All other product and company names are trademarks of their respective holders. Use of
the trademarks does not imply any affiliation with or endorsement by the respective holders.
Baker Hughes provides this information on an “as is” basis for general information purposes. Baker Hughes does notmake any representation as to the accuracy or completeness of the information and makes no warranties of any
kind, specific, implied or oral, to the fullest extent permissible by law, including those of merchantability and fitness
for a particular purpose or use. Baker Hughes hereby disclaims any and all liability for any direct, indirect,
consequential or special damages, claims for lost profits, or third party claims arising from the use of theinformation, whether a claim is asserted in contract, tort, or otherwise. Baker Hughes reserves the right to makechanges in specifications and features shown herein, or discontinue the product described at any time without
notice or obligation. Contact your Baker Hughes representative for the most current information.
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
repackaged without the express written consent of Baker Hughes. This product or associated products may becovered by one or more patents. See Bently.com/legal.

1631 Bently Parkway South, Minden, Nevada USA 89423
Phone: 1.775.782.3611 (US) or Bently.com/support
Bently.com

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