Operation; Basics - JUMO 202550 Operating Instructions Manual

9 Operation

9.1 Basics

Displays and
keys
(7)
(6)
(1) Status indicators (yellow)
for outputs 1 to 4
LED "K1" => relay K1
LED "K2" => relay K2
LED "K3" => optional relay K3
LED "K4" => logic output K4
(2) Increment key for altering parameters
or manual operation of relay K2
(3) Decrement key for altering parameters
or manual operation of relay K1
(4) EXIT key to leave
the levels
(5) PGM key for selection of parameters and
confirmation of entries, or
for manual operation of relay K3.
23
°C
1
1
LED K3 has no function if the instrument was ordered with process
value output (output "888") or with a power supply for a 2-wire
transmitter (output "140").
(8) (1)
K1 K2 K3 K4
PGM EXIT
(6) 4-digit temperature display
(LED, green, 8mm high)
(7) 4-digit process value indication
(LED, red, 13mm high)
(8) Dimensional unit, depending on
instrument version
(3) "CAL": initiate calibration (cell constant or
+ temperature coefficient)
(5)
(2) Initiate manual operation or hold
+
(4)
(2)
(3)
(4)
(5)