Flintec LAC 74.1 - Manual (Page 2)

...the right weigh
FLINTEC
Page 2 Manual LAC 74.1
Open Collector output,
normally closed,
opens in case of
LAC 74.1 error
IN mV
% at
2mV/V
SET ZERO Pot ccw = calib.
Fine
adj.
0
0,5 1,0 2,0 4,0 8,0
16,0
0
2,5
5
10 20 40 80
Pol.
+/-
Relative
gain *
Resolu.
* 1000 n
SET SPAN Pot ccw = calib.
0,25
0,5 1,0 2,0 4,0 8,0
16,0
40 30 20 13
7 4
50 60
1,0
Fine
adj.
f
CUT t
ms
SET FILTER
5
33
16
10
50
3,3
160
1
500
0,33
OUTPUT CND
Error Pwr
.
OK
20mA/10V 0-20/4-20 Under In
range.
Over
LOAD CELLS 10Vdc 120mA Log Err. PWR
12-24Vdc
GND +
U
Gnd C
Exc Sen Inp Inp Sen Exc
+ + +
_ _ _
Gnd I/V
LAC 74.1
Off
On
Out
20mA/
10V
PLC and/or
computer with
analogue input
FLINTEC
Load cells
6-wire
connection
;
PLC
system
Silo Nr.: 1
Netto : 17285 kg
Tara : 1458 kg
Power supply
-----------------------
12...24 V DC
14...28 V AC
System Configuration
Linearity < 0.01 %
Analogue input range
±0.1 mV/V to 3.5 mV/V, gain adjustment by DIP-switches and fine trimming
potentiometer
Excitation 10 V DC, for up to 4 load cells 350 Ohm, 6 wire technique
Safety circuit
Logic output, Open Collector, normally closed, opens in case of error (max. 30 V
DC, 300 mA):
- Load cell input- or sense wires signals are out of range
- The current or voltage output is out of range
- Power fail
Zero adjustment (Offset) ±3 mV/V, zero adjustment by DIP switches and fine trimming potentiometer
Current output 0 ... 20 mA or 4 ... 20 mA; R Load
³
500 Ohm
Voltage output 0 ... 10 V; R Load
³
500 Ohm
Input filters 0.33 ... 33 Hz, DIP switch selectable (5 steps)
Temperature range –20 °C to +50 °C (operating); –20 °C to +60 °C (storage)
Temperature effects
on zero 25 ppm/°K
on span 50 ppm/°K
Enclosure
135 x 66 x 18 mm, protection IP40, for standard 35 mm DIN-rail mounting,
(special housing on request)
Power supply
12 ... 24 V DC ±10% or 12 ... 18 V AC, 3 W max., reversed polarity and excess
voltage protected
All dimensions in mm. Dimensions and specifications are subject to change without notice.
LAC 74.1 Specifications