Quality Technology Solutions for the Australasian Manufacturing Industry
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Long-distance measuring systems - Measuring and positioning up to 500 meters. Reading
speed : 10 meters per second.
Suitable for high-speed measuring and positioning, available in conventional linear
encoder format or as an electronic tape measure.
The opto-electronic encoder accurately counts the number of slots in the perforated
stainless steel tape at speeds up to 10m/s.
However, Meterdrive is not just a conventional linear encoder, and offers the user
significant benefits over other linear measuring systems : the stainless steel tape
can be stretched between two fixed points and does not need to be fixed accurately
to a flat base. In this case, the encoder is mobile. Alternatively, the tape can
be coiled as in a tape measure with the encoder stationary. This solution, the Rollzam,
is particularly useful if there is only one fixed point for the tape, as is the case
for fork lifts, table lifts or periodic controls in nuclear power plants.
It is also possible to use the tape with a pulley and counterweight, as a belt between
two pulleys, or to move the tape through the fixed encoder. This last solution can
be very useful for short distances (such as pneumatic or hydraulic jacks).
The tape is guided in the encoder by 2 pairs of high-density polyethylene tape guides.
Thanks to this system, the tape cannot move incorrectly, and therefore cannot lose
step, as is the case with other measuring systems.
Water and shock resistance, absence of mechanical parts and direct reading via large
tape perforations ensure that the system has excellent life and wear characteristics.
Meterdrive is particularly useful as a replacement for conventional chain arrangements,
pulleys, etc, where roller slip or wear can cause loss of positioning when using
Inside the encoder are 4 light-emitting diodes opposite 4 light-receiving diodes.
The tape slides through the encoder, supported by polyethylene tape guides, and the
receiving diodes are alternately covered and uncovered by the perforated tape. The
encoder emits two incremental 90° phase-shifted signals (A & B). A warning signal
E is emitted should the tape perforations become obstructed by dirt particles or
if the power supply is insufficient.
The output signal can be used with any PLC or proprietary counter. Counters and PLCs
have to take all edges of signals A & B into account (multiplication by 4) and must
have an external reset. In order to use the high speed operation available with Meterdrive,
counters and PLCs must have a counting frequency of 5kHz per channel for Z.201 encoders
(1mm resolution) and 50kHz per channel for Z.301 encoders (0,1mm resolution).
Infrared optical measurement
Polycarbonate case injected with fibers, completely sealed, light, compact, robust
and without moving parts, unaffected by shocks and vibrations.
Reading speed 10 m/second
Protection IP 67
Version connector, Weight : 90g. Version cable : 350g.
Power supply 10-30V DC
Power consumption 80mA max
Incremental output signals A, B and error signal E.
Working temperature : -20 to +60°C
Storage temperature: -40 to +85°C
Protection against static electricity : 1000V, 100pF, 100 ohms
Protected against polarity inversions, short-circuit of output signals against each
other, 0V, +V
Asymmetric signal encoders
A-B-E – connector connection
Symmetric signal encoders
A-A’-B-B’-E-E’ – 2m cable connection
Output circuit: Push-pull asymetric against 0V
Output tension: 10-30V proportional to power supply
The stainless steel tape is very flexible. making detailed adjustments unnecessary
and thus facilitating use of the system (reduced time for engineering departments,
installation,….). Thanks to the large size of its perforations (2mm), it is immune
to almost all industrial environments.
The tape is usually stretched between two points. Up to 15m, no mid support is required.
Over this length, a support should be positionned every 3-4 meters, or the tape should
rest on a profile support for its entire length. When the encoder moves, it raises
the tape approximately 20mm as it passes (1/2 the depth of the encoder with some
leaway). When used with production machines, we suggest covering the tape with a
U -profile to protect it from projections and chips.
Tape for Linear encoder Meterdrive
Two types of tape are available
The Z.200 tape is intended for our Z.201 encoders, 1mm resolution. It is manufactured
with an accuracy of ±0,1mm/meter.
The Z.300 tape is manufactured with an accuracy of ±0,03mm/m. It is the ideal choice
for use with our Z.301 encoders if garanteed measures are necessary (ie. metrology).
All of our tapes are manufactured to attain their maximum precision with a tension
of 50 Newtons, which can be easily applied with our Z.215 tension system.
For applications not requiring metrology but simply needing a positionning repeatability
of 1/10thmm, it is possible to use our more economical Z.200 tape with the Z.301
Minimum bending radius
Length minimum for the fixation
± 0,1 mm/m à 50N et 22°C
± 0,03 mm/m à 50N et 22°C
Two systems exist to attach the tape ends
An economic system Z.202 including the 2 pairs of stainless steel plates and the
A rapid mounting system, Z.215, enables tension adjustment with a compression spring
for optimal precision. It can can be bolted to a support in any direction (x, y or
z) with just 4 screws.
The Rollzam comprises the flexible tape coiled inside a housing and a spring to automatically
rewind the tape. The detector head is thus static, protected against the environment,
and gives the following benefits : easy mounting, fixed cabling, no tape support
required. Standard length : 8 or 15m. The Rollzam base unit can be fitted with any
of our (either the Z.201 or Z.301) encoders.
Ideal for : telescopic systems, measuring heights or levels……