带隔膜密封的智能或模拟差压变送器，用于液位测量到带充气负压管线的压力罐推荐使用隔膜密封安装在“+”侧的变送器到带有充液负压管线的压力罐推荐使用隔膜密封安装的变送器在“-”侧和转换后的输出信号。
I.APPENDIX Exd.ATEX
APC–2000ALW/XX PRESSURE TRANSMITTER,
DIFFERENTIAL PRESSURE TRANSMITTERS,
APR-2000YALW/XX LEVEL PROBE,
Exd VERSION in accordance with ATEX directive
1. Introduction
1.2. The appendix contains supplementary information relating to the Exd (flame-proof) versions compatible
with ATEX directive of mentioned transmitters.
During installation and use of Exd transmitters, reference should be made to DTR.APC.APR.ALW.03(ENG)
in conjunction with “Appendix Exd.ATEX”.
2. Use of APC…, APR… transmitters in dangers zones
2.1. The transmitters are produced in accordance with the requirements of the following standards:
EN 60079-0:2012+A11:2013, EN 60079-1:2014, EN 60079-11:2012, EN 60079-26:2015, EN 60079-31:2014.
2.2. The transmitters may operate in areas where there is a risk of explosion, in accordance with the rating of
the explosion protection design:
Depending on type and device version the following markings are used:
I M2 Ex db ia I Mb (version with enclosure 1.4401(316))
II 1/2G Ex ia/db IIC T6/T5 Ga/Gb
II 1/2D Ex ia/t IIIC T85ºC/T100ºC Da/Db
KDB 08 ATEX 224X
marking T6 and T85°C applies to range -40ºC
I M2 Ex db ia I Mb (version with enclosure 1.4401(316))
II 2 G Ex ia/db IIC T6/T5 Gb
II 2 D Ex ia/t IIIC T85ºC/T100ºC Db
KDB 08 ATEX 224X
marking T6 and T85°C applies to range -40ºC
The category 1/2G (1/2D) means that the transmitter may be installed within a type 1 (21) or 2 (22). hazard
zones. The APC…, APR… process connections may connect to a 0 (20) zone type (see the fig. 1a below
for an example). The category 2G (2D) , means that the transmitter together with process connections may
be installed within a type 1 (21) or 2 (22) hazard zones (see the fig. 1b below for an example).
Transmitters marked I M2 turn off if there is risk of an explosive atmosphere.
