Control Concept - Thermo Scientific ALPHA COND 1000 Manual

Operating Instructions
4.3

Control Concept

The main function and sub-function groups are organised in a matrix format as
shown below.
configuration and selection of parameters.
MEASURE
CODE
tc
SET C
SET-POINT 1
SET-POINT 2
CONTROLLER
OUTPUT
RANGE
CONFIGURATION
CALIBRATION
The controller offers two levels of password protection: (1) for direct access to
calibration function and (2) for setting or editing specific controller parameters or
functions in the SETUP mode to suit individual requirements.
Note: The passwords are not user-defined and have been set by factory. It is very
important to keep these passwords strictly confidential to avoid unauthorised
tampering of the system at all times.
Note: If the user reads parameters only, the controller automatically reverts to
Measurement mode if none of the keys is pressed for 30 seconds.
These functions can be accessed via the front keypad for
Temp Coeff
Switch On /
Off ATC
Set value 1
Set value 2
Controller type
Range
Selection
Set Filter
Function
Set Cell
Constant K
Pur / Lin Set Coeff
Process temp. Calib. temp.
(MTC) (MTC)
MIN / MAX
Hysteresis 1
Function
MIN / MAX
Hysteresis 2
Function
N.O./N.C. Proportional
contact Band
Current Ouput
Conductivity
0..20 / 4..20 mA
at 0/4 mA
Display Cal
Calibrate to
Ratio
Standard
7
Thermo Scientific Alpha COND 1000
Calibrate Pt100
Pick-up delay Dropout delay
contact 1 contact 1
Pick-up delay
Dropout delay
contact 2
contact 2
Cycle time
Conductivity
at 20 mA
Line Resistance
Adjustment
Select /Load
Factory Default