67
57-606 ECLIPSE Model 706 Guided Wave Radar Transmitter
3.5.1 Special Conditions of Use
1. The enclosure contains aluminum and is considered to present a potential risk of ignition by impact or
friction. Care must be taken during installation and use to prevent impact or friction.
2. The risk of electrostatic discharge shall be minimized at installation, following the directions given in the
instructions.
3. Contact the original manufacturer for information on the dimensions of the flameproof joints.
4. For installation with ambient temperature of +70 °C, refer to the manufacturer’s instructions for guidance
on proper selection of conductors.
5. WARNING—Explosion Hazard: Do not disconnect equipment when flammable or combustible atmoshpere
is present.
6. For IEC and ATEX: To maintain the T1 to T6 temperature codes, care shall be taken to ensure the enclo-
sure temperature does not 70 °C.
7. For U.S. and Canada: To maintain the T4 temperature code, care shall be taken to ensure the enclosure
temperature does not 70 °C.
8. Temperature codes for the ratings Ex d/ia [ia IIC] IIB+H2 and Ex ia/tb [ia] IIIC are defined by the following
table:
3.5.2 Agency Specifications – Explosion Proof Installation
Factory Sealed: This product has been approved by Factory Mutual Research (FM) as a Factory Sealed device.
NOTE:
Factory Sealed: No Explosion Proof conduit fitting (EY seal) is required within 18" of the transmitter. However, an
Explosion Proof conduit fitting (EY seal) is required between the hazardous and safe areas.
Process Temperature (PT)
Temperature Code-TCG
(GAS)
Temperature Code-TCD
(Dust)
Up to 75 °C
T6
TCD= PT+10K=85 °C
From 75 to 90 °C
T5
TCD= PT+10K=100 °C
From 90 to 120 °C
T4
TCD= PT+15K=135 °C
From 125 to 185 °C
T3
TCD= PT+15K=200 °C
From 185 to 285 °C
T2
TCD= PT+15K=300 °C
From 285 to 435 °C
T1
TCD= PT+15K=450 °C