(2) (E)
LT20A / LT30 Series
Warning
• Do not use this unit with voltages other than the specified supply voltage as this may
result in fire or electric shock.
• Do not handle the I/O connector with wet hands as this may result in electric shock.
• Do not open the cover of the counter unit to disassemble or modify the unit, as this
may result in burns or injury. These actions may also damage the internal circuitry.
• This device operates with DC power supply. Absolutely do not connect an AC power
supply to the I/O connector as this may result in fire or electrical shock. Doing so may
also damage the internal circuitry.
Caution
• The unit does not have an explosion-proof structure. Therefore, do not use the unit in
an atmosphere charged with inflammable gases as this may result in fire.
• Be sure to turn off the power before connecting or disconnecting power and signal
connectors in order to prevent damage or misoperation.
• The unit does not have an earthquake-proof structure. Therefore, do not use the unit
in moving areas or areas exposed to strong shocks.
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