3500/60 and 3500/61 Temperature
Modules
Datasheet

Bently Nevada Machinery Condition Monitoring141540 Rev. L

Description
The 3500/60 & 61 modules provide six channels oftemperature monitoring and accept both Resistance
Temperature Detector (RTD) and Thermocouple (TC)temperature inputs. The modules condition these inputs andcompare them against user-programmable alarm setpoints.
The 3500/60 and 3500/61 provide identical functionality
except that the 3500/61 provides recorder outputs for each ofits six channels while the 3500/60 does not.
The user programs the modules to perform either RTD or TC
temperature measurements using the 3500 Rack
Configuration Software. Different I/O modules are available in
RTD/TC non-isolated or TC isolated versions. The user canconfigure the RTD/TC non-isolated version to accept either TC
or RTD, or a mixture of TC and RTD inputs. The TC isolated
version provides 250 Vdc of channel-to-channel isolation toprotect against external interference.
When used in a Triple Modular Redundant (TMR)
configuration, temperature monitors must be installedadjacent to each other in groups of three. When used in thisconfiguration, the system employs two types of voting toensure accurate operation and to avoid single-point failures.

3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L100Ω 3-wire& 4-wireplatinum
RTD (alpha= 0.00385)

Specifications
InputsSignal

Accepts from 1 to 6 RTD or TC
transducer signals.
100Ω 3-wire& 4-wireplatinum
RTD (alpha= 0.00392)

Power Consumption
Nominal consumption of 7watts.

3500/61

Nominal consumption of 9
watts.

(-328 °F to +1562 °F).
With external barriers:-50 °C to +850 °C(-122 °F to +1562 °F).

Input
10 MΩ for each lead input.
Impedance

3500/60-200° C to +850° C-200 °C to +700 °C(-328 °F to +1292 °F).
With external barriers:-50 °C to +260 °C(-122 °F to + 1292 °F).

120Ω 3-wire& 4-wirenickel RTD

Tranducers-80 °C to +260 °C(-112 °F to +500 °F).
With external barriers:TCs-50 °C to +260 °C

Type E-100 °C to +1000 °C, (-148 °F to+1832 °F).

(-122 °F to + 500 °F).
10Ω 3-wire & -100 °C to +260 °C,
4-wirecopper RTD (-148 °F to +500 °F).

When using any of the isolated
thermocouple I/O modules (-03 or -04
I/O ordering option) with Type E
thermocouples, the available full-scale
range will be reduced if the 3500
system is operated in an ambient
temperature above +35C. The reduced
range will be -60C to +1000C (-76F to+1832F). Rack configuration software
will allow the user to configure achannel down to -100C but the system
will not function properly in thisscenario and therefore should not beconfigured to operate with thesesettings.
Type J-18 °C to +760 °C, (+0 °F to +1400°F).

Type K-18 °C to +1370 °C, (+0 °F to+2498 °F).Type T

-160 °C to +400 °C, (-256 °F to+752 °F).

With external barriers:-50 °C to +260 °C(-122 °F to +500 °F).
Platinum RTD's with
0.00385 alphas are theworldwide industrial
standard and arerecommended for all
applications
I/O Modules
Isolated I/O Module
System Isolation: 500Vdc
Channel to Channel Isolation:
250 Vdc
Isolation is only required for
fault scenarios and thesevoltages will not be present onRTDs

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

RTDs and TCs (except for 10Ω Copper RTDs)

the I/O module inputs when awiring or field fault occurs.

ResolutionOutputs

1 °C or 1 °F

Accuracy

Front Panel LEDs

Internal
Termination
NonIsolated

OK LED

Indicates when theTemperature Monitor isoperating properly.

TX/RX LED

Indicates then the Temperature
Monitor is communicating withother modules in the 3500 rack.

BulkheadRack±3 °C at 25 °C

Indicates when theTemperature Monitor is in
Bypass Mode.

StandardRack±3 °C at 25 °C

Bypass LED(±5.4 °F at 77 °F).

(±5.4 °F at 77 °F).

External Termination Non-Isolated

RTD Current Source Value
925 ±15 µA @ 25° C per transducer (single
supply for the 4-wire RTD and two supplies forthe 3-wire).
Recorder+4 to +20 mA. Values are proportional tomonitor full-scale. Individual recorder values
are provided for each channel. Monitor
operation is unaffected by short circuits onrecorder outputs.

BulkheadRack±3 °C at 25 °C

StandardRack±1 °C at 25 °C(±5.4 °F at 77 °F).

(±1.8 °F at 77 °F).

Internal Termination Isolated
BulkheadRack±2 °C at 25 °C(±3.6 °F at 77 °F).
±3 °C at 25 °C

Voltage Compliance (current output)±5.4 °F at 77 °F).

0 to +12 Vdc range across load. Loadresistance is 0 to 600 Ω.

Standard
Rack

Resolution
0.3662 µA per bit ±0.15% error at room
temperature ±0.4% error over temperature
range.

±3 °C at 25 °C±5.4 °F at 77 °F).

External Termination Isolated

Signal Conditioning
Specified at +25 °C (+77 °F) unlessotherwise noted.

BulkheadRack±1 °C at 25 °C

Standard
Rack°C at 25 °C(±1.8 °F at 77 °F).

(±1.8 °F at 77 °F)

10 Ω Copper RTDs

Full-scale range for eachchannel is set in the field via
3500 Configuration Software. No
calibration is required.

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Resolution

1°C or 1 °F

Accuracy±3 °C at 25 °C

3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L(±5.4 °F at 77 °F).

AlarmsCold Junction Compensation Sensor (used for TCmeasurements)

Alarm
Setpoints

Accuracy±1° C at 25 °C(±1.8 °F at 77 °F).

The user can set Alert andDanger setpoints for the value
measured by the monitor using
software configuration. Alarms
are adjustable from 0 to 100% of
full-scale for each measured
value. The exception is when the
full-scale range exceeds therange of the sensor. In this case,the range of the sensor will limit
the setpoint. Accuracy of alarms
are to within 0.13% of the desired
value. The Temperature
Monitors have both under andover alarm setpoints.

Alarm Time Delays
The user can program alarm delays using
software as follows:
Alert

From 1 to 60 seconds in 1 secondintervals.

DangerFrom 1 to 60 seconds in 0.5
second intervals

Measured ValuesMeasured values are temperature
measurements used to monitor the machine.
The Temperature Monitors returntemperature measured values.

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

Environmental Limits
Operating
TempratureCompliance andCertifications (Approvalspending)-30°C to +65°C (-22°F to +150°F) when used with
Internal/External Termination
I/O Modules

FCC

0°C to +65 °C (32 °F to +150 °F)
when used with Internal Barrier
I/O Modules (InternalTermination)

This device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:

Storage-40°C to +85°C (-40°F toTemperature +185°F)lPhysicall

Monitor Module
Dimensions(Height x Width xDepth)

241.3 mm x 24.4 mm x241.8 mm
(9.50 in x 0.96 in x 9.52 in)Weight0.91 kg (2.0 lb)

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

EMC
European Community Directive:
EMC Directive 2014/30/EU

I/O Modules

Standards:

Dimensions(Height x Width xDepth)

241.3 mm x 24.4 mm x 99.1mm(9.50 in x 0.96 in x 3.90 in)

Weight0.45 kg (1.0 lb)

EN 61000-6-2; Immunity for
Industrial Environments
EN 61000-6-4; Emissions for
Industrial Environments

Electrical Safety

I/O Modules (internal barrier)Dimensions(Height x Width xDepth)

241.3 mm x 24.4 mm x 163.1mm(9.50 in x 0.96 in x 6.42 in)Weight0.46 kg (1.01 lb)

European Community Directive:
LV Directive 2014/35/EU
Standards:
EN 61010-1

Rack Space Requirements
Monitor
Module1 full-height front slot

I/O Modules

1 full-height rear slot

RoHS
European Community Directive:
RoHS Directive 2011/65/EU

Cyber Security
Designed to meet IEC 62443

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

Hazardous Area Approvals

Maritime
DNV GL rules for classification – Ships,
offshore units, and high speed and lightcraft

For the detailed listing of country andproduct specific approvals, refer to theApprovals Quick Reference Guide(108M1756) available from Bently.com.

ABS Rules for Condition of Classification,
Part 1ll

CSA/NRTL/C

Steel Vessels Rules
Offshore Units and Structures

Functional Safety

When used with I/Omodule ordering
options withoutinternal barriers

SIL 2When used with I/Omodule ordering
options withinternal barriersClass I, Zone 2: AEx/Ex nA nC ic
IIC T4 Gc;
Class I, Zone 2: AEx/Ex ec nC ic
IIC T4 Gc;
Class I, Division 2, Groups A, B, C,and D;
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
149243 or 149244.
Class I, Zone 2: AEx/Ex nA nC ic[ia Ga] IIC T4 Gc;
Class I, Zone 2: AEx/Ex ec nC ic[ia Ga] IIC T4 Gc;
Class I, Division 2, Groups A, B, C,and D (W/ IS Output for Division1)
T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
138547.

ATEX/IECEx
II 3 G
When used with I/Omodule ordering
options without
internal barriers

Ex nA nC ic IIC T4 Gc;
Ex ec nC ic IIC T4 Gc;

When used with I/Omodule ordering
options withinternal barriers

Ex nA nC ic [ia Ga] IIC T4 Gc;
Ex ec nC ic [ia Ga] IIC T4 Gc;

T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
149243 or 149244.
II 3(1) G

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T4 @ Ta= -20˚C to +65˚C (-4˚F to+149˚F)
When installed per drawing
138547.

3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. LTerminations

Ordering Information05

For the detailed listing of country andproduct specific approvals, refer to theApprovals Quick Reference Guide(108M1756) available from Bently.com.

B:Agency Approval Option

Without Recorder Outputs
3500/60-AA-BB
A:I/O Module Type01

RTD/TC Non-isolated I/O Module
Internal Terminations

02

RTD/TC Non-isolated I/O Module
External Terminations

03

TC Isolated I/O Module Internal
Terminations

04

TC Isolated I/O Module External
Terminations

05

RTD/TC Non-isolated I/O Modulewith Internal Barriers

B:Agency Approval Option00

None01

CSA/NRTL/C (Class 1, Div 2)

02

ATEX/ IECEx/ CSA (Class 1, Zone2)

Recorder Outputs
3500/61-AA-BB
A:I/O Module Type01

RTD/TC Non-isolated I/O Module
Internal Terminations

02

RTD/TC Non-isolated I/O Module
External Terminations

03

TC Isolated I/O Module Internal
Terminations

04

TC Isolated I/O Module External

RTD/TC Non-isolated I/O Modulewith Internal Barriers

7/1200

None01

CSA/NRTL/C (Class 1, Div 2)

02

ATEX/ IECEx/ CSA (Class 1, Zone2)

3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

3500/61 Recorder Output toExternal Termination (ET) Block
Cable

External Termination Blocks
133908-01

133916-01

RTD/TC Non-Isolated External
Termination Block (TerminalStrip connectors).

134543- AAAA– BB

RTD/TC Non-Isolated External
Termination Block (Euro Styleconnectors).

A:Cable Length0005

5 feet (1.5 metres)

TC Isolated External Termination
Block (Terminal Stripconnectors).

0007

7 feet (2.1 metres)0010

10 feet (3.0 metres)

133932-01

TC Isolated External Termination
Block (Euro Style connectors).

0025

25 feet (7.5 metres)

133892-01

3300/61 Recorder Output
External Termination Block(Terminal Strip connectors).

0050

50 feet (15 metres)

0100

100 feet (30.5 metres)

133924-01

133900-01

B:Assembly Instructions

3300/61 Recorder Output
External Termination Block (EuroStyle connectors).

01

Not assembled

02

Assembled
Note: Recorder cables are notused with /60 or /62 monitors

Cables
3500/60 and 3500/61 Transducer(XDCR) Signal to External
Termination (ET) Block Cable

SparesShared components for /60 and /61

134544-AAAA-BB

133908-01

RTD/TC Non-Isolated External
Termination Block (TerminalStrip connectors).

133916-01

RTD/TC Non-Isolated External
Termination Block (Euro Styleconnectors).

133924-01

TC Isolated External Termination
Block (Terminal Stripconnectors).

133932-01

TC Isolated External Termination
Block (Euro Style connectors).

00580442

Connector Header, Internal
Termination, 9-position, Green.

00580443

Connector Header, Internal
Termination, 12-position, Green.

00502133

Connector Header, Internal

A:Cable Length0005

5 feet (1.5 metres)00077 feet (2.1 metres)0010

10 feet (3.0 metres)

0025

25 feet (7.5 metres)0050

50 feet (15 metres)

0100

100 feet (30.5 metres)

B:Assembly Instructions
01

Not assembled

02

Assembled

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

3500/60 -SpecificTermination, 12-position, Blue.
00580444

Connector Header, InternalTermination, 15-position, Green.

163179-01

3500/60 Temperature Monitor(without recorders)

134542

3500/60 & 3500/61 User Guide

133827-01

3500/60 RTD/TC Non-Isolated I/OModule, External Terminations.

133819-01

3500/60 RTD/TC non-Isolated I/OModule, Internal Terminations

133835-01

3500/60 TC Isolated I/O Module,
Internal Terminations.

133843-01

3500/60 TC Isolated I/O Module,
External Terminations.

136711-01

3500/60 RTD/TC I/O Module with
Internal Barriers and Internal
Terminations. (Not-Isolated)

3500/61 -Specific

9/12163179-02

3500/61 Temperature Monitor(with recorders)

133819-02

3500/61 RTD/TC Non-Isolated I/OModule Internal Terminations.

133827-02

3500/61 RTD/TC Non-Isolated I/OModule External Terminations.

133835-02

3500/61 TC Isolated I/O Module
Internal Terminations.

133843-02

3500/61 TC Isolated I/O Module
External Terminations.

133892-01

3500/61 Recorder Output
External Termination Block(Terminal Strip connectors).

133900-01

3500/61 Recorder Output
External Termination Block (EuroStyle connectors).

136711-02

3500/61 RTD/TC I/O Module with
Internal Barriers and Internal
Terminations. (Not-Isolated)

3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

Graphs and Figures

1.
2.
3.
4.
5.
6.

Status LEDs
3500/60 Main Module Front View
ISO TC Temp I/O Module (Internal Terminations)
RTD/TC Temp I/O Module (Internal Terminations)ISO TC Temp I/O Module (External Terminations)
RTD/TC Temp I/O Module (External Terminations)Figure 1: Front and Rear Views of the 3500/60 Temperature Monitor (Without Recorder Outputs)

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. L

1.
2.
3.
4.
5.
6.

Status LEDs
3500/61 Main Module Front View
ISO TC Temp I/O Module (Internal Terminations)
RTD/TC Temp I/O Module (Internal Terminations)
ISO TC Temp I/O Module (External Terminations)
RTD/TC Temp I/O Module (External Terminations)Figure 2: Front and Rear Views of the 3500/61 Temperature Monitor (Recorder Outputs)

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3500/60 and 3500/61 Temperature Modules
Datasheet

141540 Rev. LCopyright 2020 Baker Hughes Company. All rights reserved.

Bently Nevada and Orbit Logo are registered trademarks of Bently Nevada, a Baker Hughes Business, in the UnitedStates and other countries. The Baker Hughes logo is a trademark of Baker Hughes Company. All other product andcompany 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
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1631 Bently Parkway South, Minden, Nevada USA 89423
Phone: 1.775.782.3611 or 1.800.227.5514 (US only)
Bently.com

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