User manual - RATEMETER STI-94
- In order to minimize fire or electric shock hazard, the unit must be protected
against atmospheric precipitation and excessive humidity.
- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
- Do not use the unit in areas where there is risk of explosions.
- Do not use the unit in areas with significant temperature variations, exposure to
condensation or ice.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).
The unit is designed for operation in an industrial environment and must
not be used in a household environment or similar.
2.
GENERAL CHARACTERISTICS
tachometer is measuring of the linear and rotational speed.
The device can be used as frequency meter as well.
Main feature of the tachometer is high precision of measurement (0.02% in full
temperature range). User can set input divider in range 1 to 19 999 and additional scale
coefficients
The device can be equipped with two or four relay (or OC type) outputs. These outputs
can be controlled depend on momentary value of rotational speed. Optionally
with two
relays (or OC type) outputs can be equipped with active current output, passive isolated
current output or active voltage output. Device
is equipped with RS-485 / Modbus RTU
communication interface and sensor supply output. The meter can be ordered in two power
supply versions.
Additional features:
•
settable width of measurement window ( from 0.1 to 39.9 seconds),
•
possible direct access to relays thresholds values,
•
additional multiply and division coefficients for result scaling.
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