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7.5.5. TTL MODE
The instrument features two TTL (1-2) outputs that can operate in the proportional or ON/OFF mode. After set
the TTL MODE parameter, press OK key to choose the operation mode of the TTL output selected:
PROPORTIONAL or ON/OFF. In the proportional mode the frequency of pulses decreases approaching the
SETPOINT until the minimum set value is reached, whilst in the ON/OFF mode the TTL output is actuated when
the corresponding SETPOINT relay changes its position. Press the OK key to confirm the choice.
When choosing the proportional mode, four parameters must be set to allow the TTL output to operate correctly,
as follows:
PULSE WIDTH
VAL @ MAX F
MAX FREQUENCY
MIN FREQUENCY
7.5.5.1. PULSE WIDTH
This parameter represent the time during the which the TTL output is ON.
After set the PULSE WIDTH parameter, press OK key to set the value.
7.5.5.2. VAL@MAX F
This parameter represent the measure where the frequency of the TTL output is on MAX value.
After set the VAL@MAX F parameter, press OK key to set the value.
7.5.5.3. MAX FREQUENCY
This parameter represent the maximum frequency of the TTL output.
After set the MAX FREQUENCY parameter, press OK key to set the value.
7.5.5.4. MIN FREQUENCY
This parameter represent the minimum frequency of the TTL output.
After set the MIN FREQUENCY parameter, press OK key to set the value.
7.5.6. METER READING @4mA
This parameter represent the measure value where the output mA signal is equal to 4mA.
After set the METER READING @4mA parameter, press OK key to set the value on right column.
7.5.7. METER READING @20mA
This parameter represent the measure value where the output mA signal is equal to 20mA.
After set the METER READING @20mA parameter, press OK key to set the value on right column.
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