Product Introduction
Bently Nevada 133811-02 is a robust, six-channel temperature monitoring device designed for use in severe industrial settings. It provides a sturdy and compact solution for monitoring the temperatures of critical rotating equipment components, including bearings, motors, and gearboxes.
Technical Specifications
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Manufacture |
BENTLY NEVADA |
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Model |
3500/61 |
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Part Number |
133811-02 |
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Description |
Temperature Monitor Modules |
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Origin |
USA |
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Dimension |
26*26*5cm |
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Weight |
0.8kg |
Product Details
The 3500/60 & 61 modules provide six channels of temperature monitoring and accept both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs. The modules condition these inputs and compare 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 of its 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 inRTD/TC non-isolated or TC isolated versions. The user can configure 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 to protect against external interference.
When used in a Triple Modular Redundant (TMR) configuration, temperature monitors must be installed adjacent to each other in groups of three. When used in this configuration, the system employs two types of voting to ensure accurate operation and to avoid single-point failures.
Specifications
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Signal
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Accepts from 1 to 6 RTD or TC transducer signals.
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Input Impedance
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10 MΩ for each lead input.
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Power Consumption
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|
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3500/60
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Nominal consumption of 7 watts.
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3500/61
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Nominal consumption of 9 watts.
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TCs
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|
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Type E
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-100 °C to +1000 °C, (-148 °F to +1832 °F)
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Type J
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-18 °C to +760 °C, (+0 °F to +1400 °F)
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Type K
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-18 °C to +1370 °C, (+0 °F to +2498 °F)
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Type T
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-160 °C to +400 °C, (-256 °F to +752 °F)
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RTDs
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|
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100Ω 3-wire & 4-wire platinum
RTD (alpha = 0.00385)
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-200° C to +850° C (-328 °F to +1562 °F).
With external barriers:
-50 °C to +850 °C (-122 °F to +1562 °F)
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100Ω 3-wire & 4-wire platinum
RTD (alpha = 0.00392)
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-200 °C to +700 °C (-328 °F to +1292 °F).
With external barriers:
-50 °C to +260 °C (-122 °F to + 1292 °F)
|
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120Ω 3-wire & 4-wire
nickel RTD
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-80 °C to +260 °C (-112 °F to +500 °F).
With external barriers:
-50 °C to +260 °C (-122 °F to + 500 °F)
|
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10Ω 3-wire & 4-wire
copper RTD
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-100 °C to +260 °C, (-148 °F to +500 °F).
With external barriers:
-50 °C to +260 °C (-122 °F to +500 °F).
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I/O Modules
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|
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Isolated I/O Module
System Isolation: 500Vdc
Channel to Channel Isolation: 250 Vdc
Isolation is only required for fault scenarios and these
voltages will not be present on the I/O module inputs when a wiring or field fault occurs.
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|
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Outputs
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OK LED
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Indicates when the
Temperature Monitor is operating properly.
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TX/RX LED
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Indicates then the Temperature
Monitor is communicating with other modules in the 3500 rack.
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Bypass LED
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Indicates when the Temperature Monitor is in
Bypass Mode.
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RTD Current Source Value
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925 ±15 µA @ 25° C per transducer (single supply for the 4-wire RTD and two supplies for the 3-wire).
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Recorder
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+4 to +20 mA. Values are proportional to monitor full-scale. Individual recorder values are provided for each channel. Monitor operation is unaffected by short circuits on recorder outputs.
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Voltage Compliance (current output)
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0 to +12 Vdc range across load. Load resistance is 0 to 600 Ω.
Resolution
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0.3662 µA per bit ±0.15% error at room temperature ±0.4% error over temperature range.
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Signal Conditioning
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Full-scale range for each channel is set in the field via 3500 Configuration Software. No calibration is required.
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RTDs and TCs (except for 10Ω Copper RTDs)
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Resolution
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1 °C or 1 °F
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Accuracy
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Internal Termination
Non-Isolated
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±3 °C at 25 °C (±5.4 °F at 77 °F).
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Bulkhead Rack
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±3 °C at 25 °C (±5.4 °F at 77 °F).
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Standard Rack
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±3 °C at 25 °C (±5.4 °F at 77 °F).
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External Termination Non-Isolated
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|
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Bulkhead Rack
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±3 °C at 25 °C (±5.4 °F at 77 °F).
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Standard Rack
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±1 °C at 25 °C (±1.8 °F at 77 °F).
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Internal Termination Isolated
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|
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Bulkhead Rack
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±2 °C at 25 °C
(±3.6 °F at 77 °F).
±3 °C at 25 °C
±5.4 °F at 77 °F).
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Standard Rack
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±3 °C at 25 °C
±5.4 °F at 77 °F).
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External Termination Isolated
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|
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Bulkhead Rack
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±1 °C at 25 °C
(±1.8 °F at 77 °F).
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Standard Rack
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°C at 25 °C
(±1.8 °F at 77 °F)
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10 Ω Copper RTDs
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|
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Resolution
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1°C or 1 °F
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Accuracy
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±3 °C at 25 °C
(±5.4 °F at 77 °F).
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Cold Junction Compensation Sensor (used for TCmeasurements)
|
|
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Accuracy
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±1° C at 25 °C
(±1.8 °F at 77 °F)
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