3500/50M Tachometer Module
Description
The Bently Nevada™ 3500/50M Tachometer Module is a 2
channel module that accepts input from proximity probes or
magnetic pickups to determine shaft rotative speed, rotor
acceleration, or rotor direction. The module compares these
measurements against user-programmable alarm setpoints
and generates alarms when the setpoints are violated.
The Bently Nevada™ 3500/50M Tachometer Module is a 2
channel module that accepts input from proximity probes or
magnetic pickups to determine shaft rotative speed, rotor
acceleration, or rotor direction. The module compares these
measurements against user-programmable alarm setpoints
and generates alarms when the setpoints are violated.
Speed Monitoring, Setpoint Alarming and Speed Band
Alarming
Speed Monitoring, Setpoint Alarming and Zero Speed
Notification
Speed Monitoring, Setpoint Alarming and Rotor
Acceleration Alarming
Speed Monitoring, Setpoint Alarming and Reverse
Rotation Notification
The 3500/50M Tachometer Module can be configured to
supply conditioned Keyphasor signals to the backplane of the
3500 rack for use by other monitors. Therefore, you don't need
a separate Keyphasor module in the rack.
The 3500/50M Tachometer Module has a peak hold feature
that stores the highest speed, the highest reverse speed, or
the number of reverse rotations that the machine has
reached. You can reset the peak values.
WARNING
PRODUCT MISUSE
Risk of personal injury or equipment damage.
Do not use the 3500/50M Tachometer Module independently
or as a component of a speed control or an overspeed
protection system because it does not provide protective
redundancy or the response speed needed for reliable
operation as a speed control or overspeed protection system.
The analog proportional output is suitable for data logging,
chart recording, or display purposes only. Speed alert setpoints
are suitable for annunciation purposes only.
Magnetic Pickups:
Do not use magnetic pickups for the reverse rotation option or
zero speed option. Otherwise, false indications of rotation
direction may occur. The transducers do not provide a clean
edge for the detection circuit during low speeds.
Ordering Considerations
To add the 3500/50M Tachometer Module to an
existing 3500 Monitoring System, you must
have the following versions of firmware and
software:
3500/22M Module
Firmware Revision (1.70)
3500/01 Configuration
Software Version 4.20 or
later
3500/02 Data Acquisition
Software Version 2.52 or
later
3500/03 Display Software Version 1.52 or
later
3500/50M Firmware Revision 5.30 or
later
3500/50M Not compatible
with any version
of 3500/20
Consider the following guidelines and
restrictions before placing an order:
External Termination Blocks cannot be
used with Internal Termination I/O
modules.
When ordering I/O Modules with External
Terminations, you must order External
Termination Blocks and cables
separately.
Use Bussed External Termination Blocks
with TMR I/O modules only.
Before selecting the Internal Barrier
option, see 3500 Internal Barriers product
datasheet (document 141495).
External Termination (ET)
Blocks
125808-05 Tachometer ET Block
Euro Style connectors
128015-05 Tachometer ET Block
Terminal Strip connectors
128702-01 Recorder ET Block
Euro Style connectors
128710-01 Recorder ET Block
Terminal Strip connectors
Spares
288062-02 3500/50M Tachometer
Module
133442-01 I/O Module with Internal
Terminations
136703-01 Discrete Internal Barrier I/O
Module with Internal
Terminations
133434-01 I/O Module with External
Terminations
133450-01 TMR I/O Module with External
Terminations
134938 3500/50M Tachometer User
Guide
04425545 Grounding Wrist Strap
Single use only
00580434 Connector Header
Internal Termination
8-position
Green
00580436 Connector Header
Internal Termination
6-position
Green
00502133 Connector Header
Internal Termination
12-position
Blue
166M2390 Connector Header
Push-in-Spring Type
(Alternative for PN
00580436)
166M2389 Connector Header
Push-in-Spring Type
(Alternative for PN
00580434)
