Operating Instructions
Thermo Scientific Alpha COND 1000
23
7.6.4
Selecting Conductivity value at 20mA
This parameter lets you choose the conductivity value at which the transmitter
output will be 20mA.
1) Follow directions in 7.6.1 to enter Current Output mode.
2) Press
the
ENTER
key. Scroll with the
▲
or
▼
keys until the upper display
shows a conductivity value and the lower display shows “r.20”.
3) Press
the
▲
or
▼
keys to select the required conductivity value to be
equivalent to 20 mA (20.0 to 100.0% F.S.; Default is 100% F.S.).
4) Press
the
ENTER
key to confirm your selection.
5) Press
the
ENTER
key to return to Advanced Set-up mode, or return to
Measurement mode by pressing the
▲
and
▼
keys simultaneously (escape).
7.7
Configuration (ConF) sub-function
This group of parameters lets you configure the controller to suit your requirements.
7.7.1
Entering the Configuration sub-function
1) Enter Advanced Set-up mode. Push the
ENTER
key and scroll to Advanced
Set-up security code “22”. Push the
ENTER
key again.
2) Press
the
▲
or
▼
keys to scroll until the upper display shows “ConF”. Press
ENTER key to enter configuration sub-function.
7.7.2
Selecting Filter Function and the Alarm or Wash Function
In this configuration sub-function, you have the ‘Filter’ selection
which lets you filter rapid measurement changes and stabilising
the measurement. This configuration sub-function also allows
you to use the Alarm relay as Wash or Clean contact. The Wash
(Clean) contact is used in combination with automatic cleaning
systems. During the wash cycle, the analog output is set on hold.
1) In
Filter
selection mode, use the arrow keys to choose filter
"on" or "off".
2)
Press the ENTER key
to confirm. Display will now show
“ALr” or “CLn”.
3) Press
the
▲
or
▼
key to choose "ALr" (Alarm) or "CLn"
(Clean) function.
