Programming Level 3 : Calibration - Chauvin Arnoux Statop 4849 Manual De Instrucciones

rESo 0 no decimal point (i.e. whole degrees)
rESo 1 decimal place
rESo 2 decimal places
rESo 3 decimal places
NOTE : 2 and 3 are only operational with linear voltage input (input code " in " = 10).
10.Press the Scroll key once. " ConA " appears in the PV display. This indicates the control action of the
controller.
ConA 0 Direct (cooling) action
ConA 1 Reverse (heating) action
11.Press the Scroll key breaksdon to display " ErPr ". Protection mode of the controller e.g. if sensor.
ErPr 0
ErPr 1
ErPr 2
ErPr 3
12.Press the Scroll key once. " HYSt " appears in the PV display. Hysteresis of control action is only
applicable when ON-OFF control is used (Pb = 0). Can be set in the range 0...20.0% of span. Ignore
if using P-I-D control.
13.Press the Scroll key once. " LLit " appears in the PV display. This is the Low Limit that the controller
will operate down to, such parameters as setpoint and alarm setpoint cannot be adjusted below this
setting. An error message will show on the display if the process falls below this limit.
14.Press the Scroll key once. " HLit " appears in the PV display. This is the High Limit that the controller
will operate up to, setpoint and alarm setpoint cannot be adjusted above this setting. An error message
will be displayed if the process rises above this limit.
15.Press the Scroll key once to return to normal operation, or press the Scroll key for at least 6 seconds
(16 seconds maximum) if you wish to re-calibrate the controller.
3.8

Programming level 3 : Calibration

NOTE : Do not proceed through this section unless their is a genuine need to re-calibrate the controller.
All previous calibration data will be lost. Do not attempt recalibration unless you have available appropriate
calibration equipment. If calibration data is lost, you will need to return the controller to your supplier who
may apply a charge for re-calibration.
1. Prior to calibration, ensure that all parameter settings are correct (input type, C/F, resolution, low
range, high range). If not set, refer to § 3.7.
2. Press the Scroll key for at least 6 seconds (maximum 16 seconds). Release Scroll key. « LCAL » will
appear on PV display.
3. Remove sensor input wiring and connect a standard input simulator of the correct type to the controller
input. Verify correct polarity. Set simulated signal to co-inside with low process signal (e.g. zero
degrees).
4. Use the Raise and Lower Keys until the PV Display represents the simulated input.
OUT ALM
OFF OFF
OFF
ON OFF
ON
35
ON
ON