9
DL8 USERS
MANUAL EM-7691-B Rev.24
1.2 POINTS OF CAUTION
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CONFORMITY WITH EU DIRECTIVES
• The actual installation environments such as panel configurations, connected devices, connected wires, may affect the
protection level of this unit when it is integrated in a panel system. The user may have to review the CE requirements in
regard to the whole system and employ additional protective measures to ensure the CE conformity.
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GENERAL PRECAUTIONS
• Before you remove the unit from or connect to other modules, turn off the power supply for safety.
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ENVIRONMENT
• Indoor use.
• When heavy dust or metal particles are present in the air, install the unit inside proper housing with sufficient ventilation.
• Do not install the unit where it is subjected to continuous vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C (14 to 131°F) with relative humidity within 30 to 90% RH in order
to ensure adequate life span and operation.
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WIRING
• Do not install cables close to noise sources (relay drive cable, high frequency line, etc.).
• Do not bind these cables together with those in which noises are present. Do not install them in the same duct.
• Attach a ferrite core close to the unit for communication line. Turn the cable twice around the core (1 round) as shown in
the figure below.
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SD CARD (Type C, D & E)
• Do NOT turn off the power of DL8 during writing data. Insert or eject SD card according to the specified procedure.
• Confirm the front and back side of the SD card.
• When formatting SD card, use a dedicated software “SD Card Formatter”.
“SD Card Formatter” is downloadable at SD Association’s web site.
https://www.sdcard.org
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AND....
• The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required for satisfy-
ing complete performance described in the data sheet.
