JULABO FCW1600_1600S Recirculating coolers - Manual (Page 15)

Recirculating coolers
15
4. Keys for actual values (LED 1)
A Key - Indication of feed temperature
B Key - Indication of return temperature
C Key - Indication of safety temperature
4.2 The "MENUE" key is not required for normal operating
4.1
The keys "EXT" and "SPEC" are not required for
4.3 this model version.
5. Keys for setpoint values (LED 2)
E Key - Indication or setting of working temperature
F Key - Indication or setting of high temperature
G Key - Indication or setting of low temperature
H Key - Indication or setting of control ratio for feed/return
flow temperature
J Key - Circulating pump On/Off
5.1 Key - "SPEC" - PID control parameters
5.2 Cursors left/right
5.3 Edit keys (increase/decrease setting)
5.4 Enter key (start, store)
6. Electrical connectors
K M L
K Interface RS 232
M Alarm output (for external alarm signal)
L Stand-by input conforming to NAMUR recommendations
(external emergency switch-off)