<Appendix 3 Control Drawings>
App.3-2
IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
Model: FLXA21 /FLXA202 Date: July 25, 2016
Doc. No.: IKE039-A12 P.1-3
Yokogawa Electric Corporation
Specific Conditions of Use
- When operating FLXA21 through the display window or touching the non-metallic part of the
enclosure of FLXA21, take following measures to minimize the risk of explosion from
electrostatic discharge.
Also, avoid any actions that cause the generation of electrostatic charge, such as rubbing with a
dry cloth.
To avoid electrostatic charge on the operator,
- Earth the operator through a wrist-strap, or
- Operate FLXA21 on the conductive floors, wearing anti-static work clothes and
electrostatic safety shoes, or
- Neutralize the operator and FLXA21 by a static elimination bar which has a metal
part earthed through resistor from 100kΩ to 100MΩ.
In case that those measures cannot be taken or static electricity cannot be suppressed, bring a
gas detector and make sure there is no ignition capable atmosphere around FLXA21 before the
operation.
Notes:
1. The associated apparatus must be a linear source or a FISCO power supply.
2. Sensor 1 may be simple apparatus or intrinsically safe apparatus.
3. WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD – SEE USER’S
MANUAL
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