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Band alarmBand alarm
Band alarmBand alarm
Band alarm
Operative modeOperative mode
Operative modeOperative mode
Operative mode: Inside or outside band
programmable.
ThresholdThreshold
ThresholdThreshold
Threshold: programmable from 0 to 500 units.
Hysteresis Hysteresis
Hysteresis Hysteresis
Hysteresis : programmable from 0.1 % to 10.0 % of
the readout span.
Deviation alarmDeviation alarm
Deviation alarmDeviation alarm
Deviation alarm
Operative mode Operative mode
Operative mode Operative mode
Operative mode : High or low programmable.
Threshold Threshold
Threshold Threshold
Threshold : programmable from - 500 to +500
units.
Hysteresis Hysteresis
Hysteresis Hysteresis
Hysteresis : programmable from 0.1 % to 10.0 % of
the readout span.
SERIAL COMMUNICATION INTERFACESERIAL COMMUNICATION INTERFACE
SERIAL COMMUNICATION INTERFACESERIAL COMMUNICATION INTERFACE
SERIAL COMMUNICATION INTERFACE
(OPTION)(OPTION)
(OPTION)(OPTION)
(OPTION)
TypeType
TypeType
Type: insulated RS-485.
Protocol typeProtocol type
Protocol typeProtocol type
Protocol type: MODBUS or JBUS.
Baud rateBaud rate
Baud rateBaud rate
Baud rate: programmable from 600 to 19200
BAUD.
Byte formatByte format
Byte formatByte format
Byte format: 8 bit.
ParityParity
ParityParity
Parity: even, odd or none programmable.
Stop bitStop bit
Stop bitStop bit
Stop bit: one.
AddressAddress
AddressAddress
Address: from 1 to 255.
Output voltage levelsOutput voltage levels
Output voltage levelsOutput voltage levels
Output voltage levels: according to EIA
standard.
MAINTENANCEMAINTENANCE
MAINTENANCEMAINTENANCE
MAINTENANCE
1) REMOVE POWER FROM THE POWER
SUPPLY TERMINALS AND FROM RELAY
OUTPUT TERMINALS
2) Remove the instrument from case.
3) Using a vacuum cleaner or a compressed air
jet (max. 3 kg/cm
2
) remove all deposit of dust
and dirt which may be present on the louvers
and on the internal circuits trying to be careful
for not damage the electronic components.
4) To clean external plastic or rubber parts use
only a cloth moistened with:
- Ethyl Alcohol (pure or denatured) [C
2
H
5
OH] or
- Isopropil Alcohol (pure or denatured)
[(CH
3
)
2
CHOH] or
- Water (H
2
O)
5) Verify that there are no loose terminals.
6) Before re-inserting the instrument in its case,
be sure that it is perfectly dry.
7) re-insert the instrument and turn it ON.
LHL-1-NEUTRO.pmd 19/04/2004, 15.0724