p8
4.5 Features of the analog outputs and programming
limits
4.5.1 Analog output
0/4-20mA active current output
•
Accuracy: 0.1 % in relation to the display (at +25°C)
•
Residual ripple
≤
0.2%
•
Admissible load 0
Ω
≤
Lr
≤
600
Ω
(current)
•
Programmable scale ratio with enlarging effect
•
Response time: 40 ms in relation to the display
Down scale of the analog output (eg. 04.00 (4mA))
Full scale of the analog output (eg. 20.00 (20mA))
Display value corresponding to the output down scale
Display value corresponding to the output full scale
In mode measure, the analog output can not overstepp 10% of the grea-
test of the 2 values: dOUT and F.OUT
ANA
F.OUT
dOdI
F.OdI
dOUT
DIAG
4.5.2 Safeties:
•
Self-diagnosis:
The converter permanently watches any drifts which may occur on its
components. The self-diagnosis serves to warn the user in case of abnor-
mal increase of theses drifts before they may provoque false measures.
The self-diagnosis error information can be reported:
·
On the display
:
An error message appears alternating with the measure.
Coding:
1 : Programming error
2 : Gain error
4 : Offset error
8 : Input calibration error
16 : Output calibration error
If the instrument detects for instance an offset error (4) and a gain error
(2),
the value of the error code will be 6
(4+2).
·
On the analog output
If a return value has been entered
Value between: 0 and 22 mA
·
On the converter
: the led ON blinks fast
OPEN
SECU
CAPT
OFF
ON
The sensor rupture information can be reported:
·
On the display
: Message
Note
:
the sensor rupture detection has a priority over the self-diagnosis.
·
On the converter
: the led ON blinks slowly
•
Disconnection of the sensor rupture
The sensor rupture can be disconnected in order not to disturb some calibrators
which may be sensitive to the rupture detection current.
·
On the analog output
If a return value has been entered
Value between: 0 and 22 mA
Caution: The sensor rupture detection (CAPT ON) will inject a 12 µA pulsed
current on the input.
In the menu
:
Validation (or not) of the sensor rupture
Sensor rupture active
Sensor rupture inactive
Integration indice of the digital filtering:
Programmable from 0 to 10; for use in case of unsteady input signal.
FILT
