Metrix ST5491E Installation Manual
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Metrix ST5491E Installation Manual

2-wire seismic vibration transmitter
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ST5491E 2-WIRE SEISMIC VIBRATION TRANSMITTER
Installation Manual
DOC# M9344 • REV K (April 2022)
OVERVIEW
The Model ST5491E Seismic Vibration Trans-
mitter is the latest version of an established
series of transmitters from Metrix. The
ST5491E is the indicating version of Metrix
Model ST5484E and comes with an integral
2-1/2 digit LCD indicator for local vibration
readout. It incorporates state-of-the-art
electronic components and circuits. It also
offers several new options in terms of fea-
tures and configurations.
The transmitter combines a vibration sensor
and signal conditioner in a single package.
They provide the ideal solution for sensing
machinery vibration level and transmitting
a proportional 4-20 mA signal directly to a
PLC, DCS, monitor, or computer. Typical ap-
plications include low- and medium-speed
machines such as fans, blowers, pumps, mo-
tors, and centrifuges. The transmitter can
be supplied with optional screw cover elbow
fittings for connecting flexible conduit.
The transmitter is all solid state, has no
moving parts, and is encapsulated in a
stainless steel housing. The LCD indicator
is packaged in a sealed module that can be
positioned in 90° increments with the elbow
fitting to allow proper viewing when the
transmitter is installed. Each transmitter is
factory calibrated to the sensitivity marked
on the label.

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Summary of Contents for Metrix ST5491E

  • Page 1 The Model ST5491E Seismic Vibration Trans- mitter is the latest version of an established series of transmitters from Metrix. The ST5491E is the indicating version of Metrix Model ST5484E and comes with an integral 2-1/2 digit LCD indicator for local vibration readout.

  • Page 2: Installation

    The sensitive axis of the transmitter is in line with the mounting stud. The transmitter can be oriented in any (0 to 360 degree) position. 2. WIRING The ST5491E is connected like any other loop powered transmitter. The following is a sum- mary based on area designations. 2.A SAFE AREA INSTALLATION Connect the field wiring in accordance with the appropriate diagram on page 3.

  • Page 3: Electromagnetic Compatibility

    Example: RL = 50 (24 - 13) = 550 W for 24 VDC loop supply. 2.B EXPLOSION-PROOF INSTALLATION IN HAZARDOUS LOCATIONS ST5491E transmitters are CSA certified explosion-proof, Class I (C & D); Class II (E, F & G,). Connect the field wiring in accordance with the appropriate diagram on page 3. Refer to paragraph 2.A for loop voltage and resistance requirements.
  • Page 4 A 2- to 3-second delay is normally applied to most machinery. Consult Metrix if you have a question about your machines operating characteristics.
  • Page 5 TYPICAL APPLICATION AND MOUNTING ARRANGEMENT Figure 1: Horizontal mounting for casing vibration measurements. MODEL 7084-XXX FLANGE MOUNTING ADAPTER MODEL ST5484E (OPTIONAL) SHAFT SEISMIC VIBRATION TRANSMITTER MODEL 8200-000 CONDUIT ELBOW (OPTIONAL) ORIENT STUD DIRECTLY TOWARD SHAFT CENTERLINE - - - - +-- - - TERM I NA TE FURNISHED 24•...
  • Page 6 CALIBRATION The ST5491E transmitter has been factory calibrated for the full scale vibration level marked on the label. If the calibration is in doubt the unit can be verified in the field by following the pro- cedures outlined below. Note that there are no Zero and Span adjustments on the transmitter.

  • Page 7: Optional Accessories

    OPTIONAL ACCESSORIES The ST5491E is available with different mounting options. The performance of the transmit- ter does not change (except for the dynamic output option, discussed). MOUNTING 8201-001, Conduit Union Fits between transmitter and 8200-001 conduit elbow to facilitate installation and wiring where there is not enough room to rotate the elbow.

  • Page 8: Hazardous Area Approvals

    (commonly known as WEEE) should never be disposed of in the public waste stream. The “Crossed-Out Waste Bin” label affixed to this product is a reminder to dispose of this product in accordance with local WEEE regulations. If you have questions about the disposal process, please contact Metrix Customer Services. info@metrixvibration.com www.metrixvibration.com 8824 Fallbrook Dr.

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