AUTOFLAME Mk8 MM User Manual

11 Top Blowdown
Mk8 MM Manual Page | 207
# Default Range Description
46
0
TBD: TDS Warning Level
The TDS warning level is an absolute limit; if the average TDS reading
taken from the measurement time is higher than this TDS limit, a warning
will be generated. This limit should not be set lower than the target TDS
value set in expansion option 42.
0
Disabled
1 – 5000
ppm or µS/cm (see expansion option 41)
47
10
TBD: Pressure Threshold
This pressure threshold is an offset below the required pressure setpoint.
If the actual pressure is below this offset pressure, then TDS control will
not operate.
0
Disabled
1 – 100
PSI or 0.1 bar or 0.01 bar for low pressure sensor (depends on load
detector set in option 1 and metric/imperial units set in parameter 40)
48
25
TBD: Sample Time
The first stage of the TDS control cycle is the sample time, where the
solenoid valve or top blowdown servomotor is fully opened to take a
sample.
2 – 60
Seconds
49
25
TBD: Settle Time
The second stage of the TDS control cycle is the settle time. Following
taking a sample time in expansion option 48, the solenoid valve or top
blowdown servomotor goes fully closed to allow the sample to stabilise for
this settle time.
2 – 60
Seconds
50
10
TBD: Measurement Time
The third stage of the TDS control cycle is the measurement time.
Following the settle time in expansion option 49, TDS probe will a
measure the TDS in the sample every second set in the measurement
time. The average across these measurements is taken as t
he TDS
reading for that cycle. A longer measurement time will allow an average to
be taken over more TDS probe measurements, and so the TDS readings
will be smooth.
2 – 30
Seconds
51
600
TBD: Blowdown Time
The final stage of the TDS control cycle is the blowdown time. Following
the measurement time in expansion option 50, if the measured reading is
less than 100ppm below the target value, the solenoid valve or top
blowdown servomotor will remain closed for the duration of the blowdown
time. If the measure reading is higher than the target TDS value, the PID
control will operate.
10 – 1200
Seconds

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English