Yokogawa RotaMASS 3-Series - Manual (Page 196)

9. EXplOSION prOTECTEd TYpE INSTrUMENTS
9-4 All Rights Reserved. Copyright © 2003, Rota Yokogawa IM 01R04B04-00E-E 8th edition March 01, 2011 -00
9.1.2 Installation
Integral type rCCT3
WARNING
1. Ex type of ROTAMASS must be connected to the suitable IS earthing system (see
installation diagram). Converter case must have connection to the potential equalisation facility. If the
connecting process tubing is part of the potential equalisation, no additional connection is required .
2. Use the certified cable glands, suitable for the conditions of use. The delivered cable glands are only for
Ex e use. For Ex d use d-type cable glands.
3. Please confirm that the ground terminal (inside the terminal enclosure) is firmly
connected by means of a clip-on eye-let.
4. Ex-e terminals for power supply and I/O-lines are designed for cables with cross section of 0.08 mm²
(AWG 28) to 2.5 mm² (AWG 22). The strip length must be 5 to 6 mm (0.2 to 0.24 in).
Cable glands for power- and I/O-cables :
RCCT3x-xxxM : Ex e types are enclosed. These cable glands can also be used for “dust application” (D).
Use ATEX-certified Ex d cable glands for Ex d condition.
RCCT3x-xxxA : No cable glands are enclosed. Use the ATEX-certified cable glands, suitable for the
conditions of use (Ex de or Ex d or dust application).
For “dust application” (D) use cable glands with minimum IP67 protection !
Installation diagram (option /KF1):
L/+
N/-
G
Power supply
I/O control
Hazardous area Safe area
I/O
Rotamass RCCT3
F91.EPS
Terminal Box
Detailed information for connection intrinsic safe outputs (option /KF2) see chapter 4.8.8.