APT3500 Smart Pressure Transmitter
Operation Manual M3500-EO1G
14 DUON System Co., Ltd.
(c) Set the current limit on the dielectric strength tester to 10mA, then turn ON the power and
gradually increase the tester voltage from '0' to the specified voltage.
(d) When the specified voltage is reached, hold it for one minute.
(e) After completing this test, slowly decrease the voltage to avoid any voltage surges.
2.10 Installation of Explosion Protected Type Transmitters
2.10.1 KOSHA Certification
Caution for KOSHA Flameproof is following type.
[Note1] Model APT3500 diaphragm sealed for potentially explosive atmosphere:
Type of Protection and Marking Code: Ex d
Ⅱ
C T6
Temperature Class: T6
Ambient Temperature: -20 ~ 60'C
Process Temperature: Max. 80'C
[Note2] Electrical Data
Supply Voltage: Maximum 45 Vdc
Output signal: 4 ~ 20mA, maximum 22mA
[Note3] Installation
All wiring shall comply with local installation requirement.
The cable entry devices shall be of a certified flameproof type, suitable for conditions of
use.
[Note4] Operation
Wait one minute after power -disconnection, before opening the enclosure.
Take care not to generate mechanical spark when access to the instrument and
peripheral devices in hazardous location.
[Note5] Maintenance and Repair
The instrument modification or parts replacement by other than authorized
representative of DUON System is prohibited and will void KOSHA Flameproof.
2.11 EMC Conformity Standards
EMC Standaed : IEC 61000-4 series
DUON System recommends customer to apply the Metal Conduit Wiring or to upset he twisted pair
Shield Cable for signal wiring to conform the requirement of EMC Regulation, when customer installs
AUTROL Series Transmitters to the plant.