Flintec FT-10xx - Manual (Page 47)

FT-10 Smart Process Indicator, Technical Manual, Rev. 1.0, January 2014
7. A
NALOGUE
(
ONLY
FT-10 AN )
FT-10 AN is programmable to 4 – 20 mA, 0 – 20 mA, 0 – 5 V or 0 – 10 V analogue output types. Analog
output is automatically adjusted to the weighing range after the calibration. The mid value of the analog
output is set to zero load at bipolar usage
The analogue output is related with the gross load of the scale. The analog output signal operates as
described next.
Under Zero
When the gross indication drops below zero, the analog output reduces
the analog output to 0mA or - 4 V to indicate error on the analog output.
Normal Range
The analog output will reflect the gross value to the programmed analog
output 4
– 20 mA, 0 – 20 mA, 0 – 5 V or 0 – 10 V.
Over High Limit
When the gross value exceeds the high limit, the analog signal increase to
approximately 24 mA or 11 V and remains there until the weight display is
no longer blanked or the analog signal returns to within range.
The following table indicates the analog output value when the gross indication is out of the range and if
there is any error indication on the display.
Condition ( On Display )
4-20 mA
output 0-20 mA
output 0 – 5 V
output
0 – 10 V
output
The weight is more than the range ( Over ) 24 mA 24 mA 5.5 V 11 V
The weight is under the zero range ( Under ) 0 mA 0 mA -4.0 V -4.0 V
Error [ Err XX ] 24 mA 24 mA 5.5 V 11 V
ADC is out of operating range [ Adc Out ] 24 mA 24 mA 5.5 V 11 V
The error data indicated above can be used to follow the errors at PLC.
[4--] Analogue Output Block
The calibration of the analogue output is performed in this sub-block.
[40-] Signal Selection
[400 0] Analogue Output Mode
0 : 4 – 20 mA
1 : 0 – 20 mA
2 : 0 – 5 VDC
3 : 0 – 10 VDC
[401] Set Analogue Output to calibration range
Press < Enter > key. [ Ld dEf ] message appears on the display. Press < Tare > key for loading
default values or press < F > key to go next sub block.
[41-] Zero Adjustment
[410] Coarse Zero Adjustment
The coarse zero adjustment is being performed by pressing < Zero > key one after another to
increase the analogue signal level or < Tare > key to decrease the analogue signal level.
[411] Fine Zero Adjustment
The fine zero adjustment is being performed by pressing < Zero > key continuously one after
another to increase the analogue signal level or < Tare > key to decrease the analogue signal level.