ABB SCK System Manual

22 System Manual SCK Gas Sampling System 42/23-81 EN Rev. 4
Process monitoring
The process is monitored by the following devices:
Monitoring device Purpose Function
Inductive position indi-
cator Probe inserted
 Ensures that front end
position is reached
 Monitoring of probe
travel time
 Locks various follow-
up functions
 Triggers the retraction
program if probe travel
time is exceeded
Inductive position indi-
cator Probe retracted
 Ensures that rear end
position is reached
 Monitoring of probe
travel time
 Locks various follow-
up functions
 Triggers the retraction
program if probe travel
time is exceeded
Mechanical position
indicator Probe retract-
ed
 Ensures that rear end
position is reached
 Monitoring of probe
travel time
 Additional signaling
option for customer er-
ror management
 Locks various follow-
up functions
 Triggers the retraction
program if probe travel
time is exceeded
 Provides a mechanical
switching contact for
error management
Cooling water flow
temperature measure-
ment
 Protects gas sampling
probe against conden-
sation build-up inside
 Locks various follow-
up functions during
start-up
Cooling water pressure
measurement
 Protects the gas sam-
pling probe against
overheating
 Triggers the retraction
program if minimum
cooling water pressure
is not reached
 Cooling-water circuit
leak monitoring
Cooling water flow
measurement
 Protects the gas sam-
pling probe against
overheating
 Monitors the cooling
water pump for ade-
quate pump power
 Triggers the retraction
program if maximum
cooling water tempera-
ture is exceeded
 Cooling water pump
function check
Pressure switch Com-
pressed air
 Ensures adequate
central compressed-air
supply
 Triggers the retraction
program if minimum
input pressure is not
reached
Cooling water return
temperature measure-
ment
 Protects the probe
against overheating
 Triggers the retraction
program if maximum
temperature is ex-
ceeded
 Locks follow-up func-
tions
Pressure switch Emer-
gency tank full
(optional)
 Ensures adequate
compressed-air reserve
 Triggers the retraction
program if minimum
input pressure is not
reached
Monitoring
devices

ABB SCK Specifications

General

Brand	ABB
Model	SCK
Category	Industrial Equipment
Language	English