Omega Engineering CN3271 Series, Руководство пользователя

Страница: 27 / 33

24
Band alarm Band alarm Band alarm Band alarm Band alarm
Operative mode
Operative mode
Operative mode Operative mode
Operative mode: Inside or outside band
programmable.
Threshold
Threshold Threshold Threshold Threshold: programmable from 0 to 500 units.
Hysteresis
Hysteresis Hysteresis Hysteresis Hysteresis : programmable from 0.1 % to 10.0 % of
the readout span.
Deviation alarm Deviation alarm Deviation alarm Deviation 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 INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE
(OPTION)
(OPTION) (OPTION) (OPTION) (OPTION)
Type
Type Type Type Type: insulated RS-485.
Protocol type
Protocol type
Protocol type Protocol type
Protocol type: MODBUS or JBUS.
Baud rate
Baud rate Baud rate Baud rate Baud rate: programmable from 600 to 19200
BAUD.
Byte format
Byte format Byte format Byte format Byte format: 8 bit.
Parity
Parity
Parity Parity
Parity: even, odd or none programmable.
Stop bit
Stop bit Stop bit Stop bit Stop bit: one.
Address
Address Address Address Address: from 1 to 255.
Output voltage levels
Output voltage levels Output voltage levels Output voltage levels Output voltage levels: according to EIA
standard.
MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE 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, 15.07 24