Metrix 5485C User manual

5485C HIGH-TEMPERATURE VELOCITY TRANSDUCER
Installaon Manual
DOC # M8109 • REV K (Feb 2015)
1180
2-PIN CONNECTOR VERSION
(requires mang Model 4850-XXXX cable)
FIXED ARMORED CABLE VERSION
OVERVIEW
The Metrix 5485C High-Temperature Veloc-
ity Sensor is suitable for use in temperatures
up to 375!C. It is designed for gas turbines
and other machinery with high surface tem-
peratures where a velocity signal is desired.
The sensor’s moving-coil design requires no
external power as it self-generates a signal
proporonal to vibraon velocity.
FEATURES
• Self generang, no power required
• Stainless Steel Housing
• Zero fricon - infinite analog resoluon
APPLICATIONS
• Large industrial gas turbines
• Furnace fan monitoring
HAZARDOUS AREAS
UL intrinsically safe for Class 1, Div. 1, Grps
(A-D); Non-incendive for Class 1, Div. 2,
Grps. (A-D). CSA intrinsically safe for: Class
1, Div. 1, Grps (A-D); ATEX/IECEx intrinsically
safe for: EEx ia IIC T1-T6 Ga.

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INSTALLATION
The sensi!ve axis of the transducer can be oriented in any direc!on. To ensure clean response
to high frequency vibra!ons, the transducer must be securely mounted to a flat machined
surface using four #6 (or 3mm) socket head screws. If a bracket is required, it should be of
rigid construc!on to prevent spurious mechanical resonances in the pass band.
WIRING
In ordinary, nonhazardous loca!ons the transducer should be wired according to Page 4
(drawing 7623, Sheet 2).
In hazardous loca!ons the wiring method depends upon the area classifica!on.
1. In Class I, Div 1, Groups A, B, C & D or IEC Zone 0, Group IIC hazardous loca!ons, the
transducer may be connected through a zener diode safety barrier to the safe area
receiver in accordance with Page 5 (drawing 7623, Sheet 3).
2. In Class I, Div 2, Groups A, B, C & D loca!ons the transducer may be wired as in (1), or it
can be wired without a safety barrier if wired in accordance with Page 6 (drawing 8096).
ATEX/IECEx INPUT ENTITY PARAMETERS
• Ui= 28v
• Ii= 120mA
• Pi= 625 mW
• Ci= 0
• Li= 0.88mH max.
SPECIFIC CONDITIONS OF USE
In order to ensure temperature classifica!on and safety, the power supply must adhere to
the following:
• Uo ≤ 28V
• Io ≤ 120mA
• Po ≤ 0.625W
The temperature classifica!ons and ambient temperature range can vary as follows:
Max. Low
Ambient Temp.
Max. High
Ambient Temp.
Temp.
Classifica"on
-54°C
45°C T6
60°C T5
95°C T4
160°C T3
260°C T2
375°C T1

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SENSOR VERIFICATION CALIBRATION PROCEDURE
Mount the 5485C on a shaker table and verify the RMS output per table below.
CALIBRATION VERIFICATION TABLE
1 ips peak @ 150Hz
Calibrated Sensi!vity
mV/in/s
Calibrated Sensi!vity
mV/mm/s
RMS Output mV
Min/Max.
105 4.14 67/81
145 5.71 93/112
150 5.91 95/167
200 7.87 127/156
The test should be performed on a NIST traceable shaker at 1 ips, 150Hz.
Metrix recommends that this procedure be performed every 3 years.
NOTE: Due to the difficul"es of
field sensor verifica"on, the +/- 5%
sensi"vity specifica"on is relaxed to
+/- 10%. The sensor should be returned
to Metrix, Houston, Texas for metrology
verifica"on of factory calibra"on.

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info@metrixvibra!on.com
www.metrixvibra!on.com
8824 Fallbrook Dr. Houston, TX 77064, USA
Tel: [phone] • Fax: [phone]
This electronic equipment was manufactured according to high quality stan-
dards to ensure safe and reliable opera!on when used as intended. Due to its
nature, this equipment may contain small quan!!es of substances known to be
hazardous to the environment or to human health if released into the environ-
ment. For this reason, Waste Electrical and Electronic Equipment (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 regula!ons. If you have ques!ons about the disposal pro-
cess, please contact Metrix Customer Service.
ENVIRONMENTAL INFORMATION