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SKF Tachometer TMRT series
Tachometer TMRT series
Pinpoint accuracy combined with measurement versatility
The SKF TMRT series includes two user-friendly and accurate tachometers utilising laser or contact for measuring rotational and linear speed: TMRT 1 and TMRT 1Ex. Equipped with
laser and contact adaptor, both tachometers offer excellent speed measurement versatility in many different modes.
Laser optical system:
allows easy and quick non-contact measurement at safe distance from rotating machinery,
provides large angular range of ± 80° to target, facilitating easy measuring in areas where straight-line access is difficult, and
allows surface imperfections to be used as a target
The user can select to measure:
rpm, rps, m, ft or yds per minute or second
distances or count revolutions, or
time interval
Wide speed range and the diverse measurement modes make the TMRT series suitable for measuring speed in many applications
The large inverting LCD display facilitates easy reading even when pointing the unit down into the machinery
Compact design; easy to use, one-hand operated instrument
Supplied in carrying case for protection and portability
The TMRT 1 can also be equipped with remote laser sensor, which is optionally available
Non-contact
laser
measurement Contact
measurement
Remote laser
sensor
measurement Inverting
LCD display
Intrinsically safe tachometer TMRT 1Ex
The SKF TMRT 1 is also available in an intrinsically safe (Ex) version, especially designed for use in potentially explosive hazardous areas. The TMRT 1Ex has been tested and certified according to the latest ATEX standards for use in intrinsic safety zones generally found in
industries such as the petrochemical, gas and pharmaceutical among others.
Ordering details
Designation Description
TMRT 1 Multi function laser and contact tachometer
TMRT 1Ex Intrinsically safe multi function laser and contact tachometer
Technical data
Designation TMRT 1 / TMRT 1Ex
Display Inverting LCD Vertical 5 digit display
Display functions 180º Inverting
Rotational speed range - Optical mode: 3 - 99,999 rpm
(or equivalent in rps)
- Contact mode: Max. 50,000 rpm for 10 sec
(or equivalent in rps)
Linear speed range 0.30 - 1500.0 Metres or Yds/min. (4,500 ft/min)
or equivalent in seconds
Measurement modes - Optical; rpm and rps (also Count and Time)
- Via contact adaptor; rpm and rps, metres,
yards, feet, per min and per sec.
- Count total revs, metres, feet, yards
- Measure Time interval in seconds
between pulses (reciprocal rate)
- Speed Capture feature -
Maximum, Minimum or Average rate
Laser optical range 50 mm - 2000 mm (1.9 - 78.7 in)
Angle of operation ± 80º
Light source Class II laser diode
Accuracy speed modes only 0.01%, ± 1 digit
Resolution range features Fully Auto ranging up to 0.001 digit
or ± 1 digit fixed, user selectable
On target indicator Yes
Low battery indicator Yes
Memory features - Last readin
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Adhesives (4) 
