g. PSI Decimals – For PSI unit of measure only—select preferred number of PSI decimals (range
of 0, 1, and 2)
h. Bar Decimals – For BAR unit of measure only—select preferred number of BAR decimals
(range of 1, 2, and 3)
i. Key Timeout – When “On,” if the TFF system’s soft buttons are untouched for ten minutes
while on any screen other than the Main Screen, the TFF system will automatically switch
back to the Main Screen
j. Running Change – When “On,” the tubing size and pump direction can be changed while the
pump is running
k. No. of Heads – Input number of attached pump heads
l. Perm Stop First - Permeate Pump motor stops before main drive stops
m. Check Weight - Pump Mode will not start if Feed Scale Weight is less than Initial
Concentration Weight, or if the Permeate Scale Weight is more than the Initial Diafiltration
Weight
n. Scale Req 4 Man - Manual Mode will not start unless both Feed and Permeate Scales are
present
o. Slow for Valve - If Automatic Backpressure Valve is unable to control pressure, then main
drive will slow down gradually to control pressure increases especially when concentrating
viscous solutions
p. Ramp Seconds - Determines rate at which TFF system will increase main pump flow rate
linearly over desired amount of time
q. Minus Modes – Enables TFF system to use weight set-points instead of CF/DV setpoints.
Once turned on KF Comm needs to be closed and reopened to have access to these modes
in the Pump Control Window.
r. Valve 2 - (on KMPi only) Select either 'Valve 2 Port' if using a secondary automatic
backpressure valve or 'KONDUiT' if using the conductivity, temperature and UV sensors
NOTE: when connecting a KONDUiT to the Valve 2 serial connection use the null serial connector
included with the KONDUiT.
s. Shear Control – When set to Off, after initial ramp rate the pump drive will run continuously
at set flow rate. When set to On, TFF system will increase main pump flow rate depending
on feedback from Permeate Scale to make up for permeated volume (e.g. Permeate Scale
read weights as increasing at ~200g/min, main pump flow rate will increase by 200ml/min)
t. Cond 1 K and Cond 2 K - enter the K factor printed on the conductivity sensor when using
the KONDUiT
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