Mts SWIFT 30 Sensor Uživatelský manuál stáhnout pdf (Strana 34)

SWIFT 30 Sensors

Transducer Interface

Hardware Overview

TI Front Panel

Transducer Interface Front Panel

Fuse (F1) A 3A fuse protects the electronics.

Power switch and

Indicator

The power switch turns power on and off. A green indicator will light to indicate

that the TI power is turned on.

Shunt switch Pressing this switch performs a shunt calibration (shunt cal) of the transducer.

You do not need to hold the switch in continuously, only until the Shunt indicator

lights up (indicating that the TI has started the shunt cal).

Before you perform a shunt cal, check that the appropriate shunt reference value

and error tolerance have been downloaded (these values are normally loaded

during system calibration, and are referred to as the shunt delta cal values).

A shunt calibration will determine the current delta values by measuring the

bridges unshunted and shunted, and then compare these values to the previously

loaded calibration values. If the measured values are outside of an acceptable

tolerance, the Shunt indicator will flash, indicating an error.

Shunt Indicator This indicator indicates the current state of the shunts. If there are any active

shunts, or if you are currently performing a shunt calibration, this indicator will

be lit.

If the shunt cal check fails, this indicator flashes (at approximately a 1 Hz rate).

Note The state of the shunt cal check is cleared at power-up, so the shunt cal

should be performed when the system installation is in question.

S20-11

Fuse

Power Switch

and Indicator

Shunt Switch

and Indicator

Angle Zero

Switch and Indicator

Bridge Zero

Switch and Indicator

Fail

Indicator

Transmit

Indicator

Address

Selector

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Mts SWIFT 30 Sensor Uživatelský manuál Strana 34