Overview
Manuals
mA Output
RTD/TC
Rack Setup
Features:
- Six temperature channels accept RTD or thermocouple signals through a selected rear I/O module, including mixed sensor configurations with non-isolated RTD/TC I/O.
- An individual 4-20 mA recorder output is provided for every channel, with a 0-600 Ohm load range; short circuits on recorder outputs do not affect monitor operation.
- 3500 Rack Configuration Software sets channel ranges and high or low Alert and Danger alarms, while OK, TX/RX and Bypass LEDs indicate the monitor status.
The Bently Nevada 3500/61 163179-02 is a six-channel temperature monitor with recorder outputs for the 3500 machinery protection platform. It receives RTD or thermocouple signals, conditions the measurements and compares them with user-configured alarm setpoints. Unlike the 3500/60, it provides an individual 4-20 mA recorder output for every channel, allowing each temperature measurement to be passed to a recording or control system. Channel type, full-scale range and alarm settings are established in 3500 Rack Configuration Software. The selected rear I/O determines whether the installation uses non-isolated RTD/TC inputs, isolated thermocouple inputs or an internal-barrier arrangement. The front monitor occupies one full-height rack slot and is specified separately from its I/O and termination hardware. For TMR service, the manufacturer requires adjacent temperature monitors in groups of three.
Technical values refer to Bently Nevada datasheet 141540, Rev. L. The spare number 163179-02 identifies the front monitor; it does not by itself specify the rear I/O, sensor mix or hazardous-area approval option.
The Bently Nevada 3500/61 163179-02 temperature monitor is supported by Moore Automated for verified industrial replacement and spare-part requirements.
Bently Nevada 3500/61 163179-02 temperature monitor manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Six individual recorder channels
The 3500/61 provides a 4-20 mA output for each temperature channel. Output scaling is proportional to the configured full-scale range, with a specified load resistance of 0-600 Ohm and voltage compliance of 0 to +12 V DC. Recorder resolution is 0.3662 microampere per bit.
The manufacturer states that recorder-output short circuits do not affect monitor operation. Verify the receiving input, loop termination and selected internal or external I/O arrangement before connecting a recorder or control-system input.
Choose the sensor and I/O together
Documented thermocouple types include E, J, K and T. Supported three- and four-wire RTDs include 100 Ohm platinum with alpha 0.00385 or 0.00392, 120 Ohm nickel and 10 Ohm copper. Measurement range, wiring and any barrier restrictions must be checked for the selected sensor.
RTD/TC non-isolated I/O can accept either sensor type or a mixture of RTD and thermocouple channels. The TC-isolated configuration is thermocouple-specific. Isolation values and permissible temperature ranges apply to the selected I/O arrangement, not to an unidentified front monitor on its own.
Front monitor and rear I/O arrangement
The front monitor requires one full-height 3500 rack slot, with the corresponding temperature I/O in a rear slot. Channel type, full-scale range and alarm setpoints are established with 3500 Rack Configuration Software; the selected I/O and installed transducers must agree with that configuration.
With internal or external termination I/O, the specified operating range is -30 to +65 deg C. Internal-barrier I/O changes the operating range to 0 to +65 deg C. When used in Triple Modular Redundant service, temperature monitors must be installed next to each other in groups of three according to the documented system arrangement.
