CB (E6.1) 07/2017 Page 20/145
2.4 Control panel on the rear of the chamber
(1) (2) (3) (6) (4) (5)
(7) (8) (9) (10)
Figure 7: Rear control panel CB with O
2
control and options
(1) Miniature fuse
(2) External socket for extra-low voltage supply (option for CB 160 / CB 220, chap. 15.6)
(3) DIN socket for analog outputs 4-20 mA (option, chap. 15.5)
(4) Quick acting closure socket for CO
2
(5) Quick acting closure socket for O
2
(chamber with O
2
control and optional alternative control range
10 up to 95 vol.-% O
2
)
(6) Quick acting closure socket for N
2
(chamber with O
2
control)
(7) Socket for IEC connector plug for power cable
(8) Ethernet interface for computer communication
(9) DIN-socket for zero-voltage relay alarm outputs
(10) RS 422 interface for computer communication (option)