Thermo Scientific Alpha RES 1000, Руководство пользователя

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Operating Instructions Alpha RES 1000
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7.5.7 Selecting Resistivity value at 20mA
This parameter selects the resistivity value at which transmitter output will be 20mA.
4)
Follow directions in 7.5.4 to enter Current Output mode.
5) Press the ENTER key until upper display shows a resistivity value and lower display shows “r.20”.
6) Press the
Δ
or
∇
keys to select the required resistivity value to be equivalent to 20 mA (Default is 20.00
m
Ω
).Note that difference between the value at 4mA and 20mA must be at least 20% of F.S.
7) Press the ENTER key to confirm your selection.
8) Press the ENTER key to return to Advanced Set-up mode, or return to Measurement mode by pressing
the
Δ
and
∇
keys simultaneously (escape).
7.6 Configuration (ConF) sub-function
This group of parameters lets you configure the controller to suit your requirements
.
7.6.1 Entering Configuration sub-function
1) Enter Advanced Set-up mode. Push ENTER key and scroll to Advanced Set-up security code “22”.
Push ENTER key.
2) Press
Δ
or
∇
keys to scroll until upper display shows “ConF”. Press ENTER key to enter configuration
sub-function.
7.6.2 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
Δ
or
∇
keys to choose "ALr" (Alarm) or "CLn" (Clean) function.
4) Press the ENTER key to confirm your selection.
5) Proceed to 7.6.3, or return to Measurement mode by pressing the
Δ
and
∇
keys
simultaneously (escape).
Note: The factory default setting for the Filter selection is "on".