Bently Nevada 3500/60 Data sheet

3500/60 and 3500/61 Temperature

Modules

Datasheet

BentlyNevadaMachineryCondition Monitoring 141540Rev. L

Description

The3500/60& 61modules providesixchannels of temperaturemonitoring and accept both Resistance TemperatureDetector (RTD) and Thermocouple(TC) temperatureinputs. Themodules condition theseinputs and comparethem against user-programmablealarm setpoints. The3500/60and 3500/61provideidenticalfunctionality except that the3500/61provides recorder outputs for each of its sixchannels whilethe3500/60does not.

Theuser programs themodules to perform either RTDor TC temperaturemeasurements using the3500Rack Configuration Software. Different I/Omodules areavailablein RTD/TCnon-isolated or TCisolated versions. Theuser can configuretheRTD/TCnon-isolated version to accept either TC or RTD, or a mixtureofTCand RTDinputs. TheTCisolated version provides 250Vdc ofchannel-to-channelisolation to protect against externalinterference.

When used in a TripleModular Redundant (TMR) configuration, temperaturemonitors must beinstalled adjacent to each other in groups ofthree. When used in this configuration, thesystem employs two types ofvoting to ensureaccurateoperation and to avoid single-point failures.

3500/60and3500/61 TemperatureModules
Datasheet	141540Rev. L

Specifications

Inputs

Signal	Accepts from 1to 6RTDor TC
	transducer signals.
Input	10MΩfor each lead input.
Impedance
Power Consumption
3500/60	Nominalconsumption of7
	watts.
3500/61	Nominalconsumption of9
	watts.

Tranducers

TCs
TypeE	-100°Cto +1000°C, (-148°F to
	+1832 °F).

When using any oftheisolated thermocoupleI/Omodules (-03 or -04 I/Oordering option) with TypeE thermocouples, theavailablefull-scale rangewillbereduced ifthe3500 system is operated in an ambient temperatureabove+35C. Thereduced rangewillbe-60Cto +1000C(-76F to +1832F). Rack configuration software willallow theuser to configurea channeldown to -100Cbut thesystem willnot function properly in this scenario and thereforeshould not be configured to operatewith these settings.

TypeJ	-18	°Cto +760°C, (+0°F to +1400
	°F).
TypeK	-18	°Cto +1370°C, (+0°F to
	+2498°F)
.TypeT	-160°Cto +400°C, (-256°F to
	+752 °F).
RTDs

	100Ω3-wire	-200°Cto +850°C
	& 4-wire	(-328°F to +1562 °F).
	platinum
	RTD(alpha	With externalbarriers:
	= 0.00385)	-50°Cto +850°C
		(-122 °F to +1562 °F).
	100Ω3-wire	-200°Cto +700°C
	& 4-wire	(-328°F to +1292 °F).
	platinum
	RTD(alpha	With externalbarriers:
	= 0.00392)	-50°Cto +260°C
		(-122 °F to + 1292 °F).
	120Ω3-wire	-80°Cto +260°C
	& 4-wire	(-112 °F to +500°F).
	nickelRTD
		With externalbarriers:
		-50°Cto +260°C
		(-122 °F to + 500°F).
	10Ω3-wire&	-100°Cto +260°C,
	4-wire	(-148°F to +500°F).
	copper RTD
		With externalbarriers:
		-50°Cto +260°C
		(-122 °F to +500°F).
		Platinum RTD's with
		0.00385alphas arethe
		worldwideindustrial
		standard and are
		recommended for all
		applications
	I/OModules
		Isolated I/OModule
		System Isolation: 500Vdc
		Channelto ChannelIsolation:
		250Vdc
		Isolation is only required for
		fault scenarios and these
		voltages willnot bepresent on

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3500/60and3500/61 TemperatureModules
Datasheet	141540Rev. L

theI/Omoduleinputs when a wiring or field fault occurs.

Outputs

Front PanelLEDs

OK LED	Indicates when the
	TemperatureMonitor is
	operating properly.
TX/RXLED	Indicates then theTemperature
	Monitor is communicating with
	other modules in the3500rack.
Bypass LED	Indicates when the
	TemperatureMonitor is in
	Bypass Mode.

RTDCurrent SourceValue

925±15µA @ 25°Cper transducer (single supply for the4-wireRTDand two supplies for the3-wire).

Recorder

+4to +20mA. Values areproportionalto monitor full-scale. Individualrecorder values areprovided for each channel. Monitor operation is unaffected by short circuits on recorder outputs.

VoltageCompliance(current output)

0to +12 Vdc rangeacross load. Load resistanceis 0to 600Ω.

Resolution

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

SignalConditioning

Specified at +25°C(+77°F) unless otherwisenoted.

Full-scalerangefor each channelis set in thefield via 3500Configuration Software. No calibration is required.

RTDs and TCs (except for 10ΩCopper RTDs)

Resolution	1°Cor 1°F
Accuracy
Internal
Termination
Non-
Isolated
Bulkhead	±3 °Cat 25°C
Rack	(±5.4°F at 77°F).
Standard	±3 °Cat 25°C
Rack	(±5.4°F at 77°F).
ExternalTermination Non-Isolated
Bulkhead	±3 °Cat 25°C
Rack	(±5.4°F at 77°F).
Standard	±1°Cat 25°C
Rack	(±1.8°F at 77°F).
InternalTermination Isolated
Bulkhead	±2 °Cat 25°C
Rack	(±3.6°F at 77°F).
	±3 °Cat 25°C
	±5.4°F at 77°F).
Standard	±3 °Cat 25°C
Rack	±5.4°F at 77°F).
ExternalTermination Isolated
Bulkhead	±1°Cat 25°C
Rack	(±1.8°F at 77°F).
Standard	°Cat 25°C
Rack	(±1.8°F at 77°F)
10ΩCopper RTDs
Resolution	1°Cor 1°F
Accuracy	±3 °Cat 25°C

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3500/60and3500/61 TemperatureModules
Datasheet	141540Rev. L

(±5.4°F at 77°F).

Cold Junction Compensation Sensor(used forTC measurements)

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

Alarms

Alarm	Theuser can set Alert and
Setpoints	Danger setpoints for thevalue
	measured by themonitor using
	softwareconfiguration. Alarms
	areadjustablefrom 0to 100% of
	full-scalefor each measured
	value. Theexception is when the
	full-scalerangeexceeds the
	rangeofthesensor. In this case,
	therangeofthesensor willlimit
	thesetpoint. Accuracy ofalarms
	areto within 0.13% ofthedesired
	value. TheTemperature
	Monitors haveboth under and
	over alarm setpoints.

Alarm Time Delays

Theuser can program alarm delays using softwareas follows:

Alert	From 1to 60seconds in 1second
	intervals.
Danger	From 1to 60seconds in 0.5
	second intervals

Measured Values

Measured values aretemperature measurements used to monitor themachine. TheTemperatureMonitors return temperaturemeasured values.

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