Flygt CAS Montage Und Service Seite 10

Connect the resistor 680 Ω
or 820 Ω (or a jumper),
between terminals 26 and 27.
Can C-alarm be reset
manually?
Channel D
Connect an ammeter to
terminals 31 and 32 (NOTE!
Correct polarity ±).Depress
switch 58. The instrument
shall now indicate the set
alarm level (from factory,
set to 100° C (212°F), which
corresponds to 10 mA).
For test of the channel D-alarm
function, the instrument
shall indicate 7 – 14 mA.
Adjust if necessary with
potentiometer 60.
Turn off the supply current.
Disconnect the sensor from
terminals 28, 29 (and 30).
Connect a jumper between
29 and 30. Connect a resistor
130 Ω between terminals
28 and 29. Turn the supply
current back on. Does the
instrument indicate about
5.5 mA?
Turn off the supply current.
Substitute a 150 Ω resistor
for the 130 Ω resistor. Turn the
supply current on. Does the
instrument indicate about
16 mA?
Is D-alarm activated and
cannot be reset?
No
Yes
No
Yes
No
Yes
No
Yes
10
Contact an ITT Flygt service shop.
Contact an ITT Flygt service shop.
Contact an ITT Flygt service shop.
Contact an ITT Flygt service shop.