Fema M Series, User Manual, Page: 6 / 36

FEMA ELECTRÓNICA . SERIES M . M60-LC
6
Digits
number of digits 6
led 7 segments
color red or green
digit height 14 mm
Reading
max. reading 999999
min. reading -199999
decimal point configurable X.X.X.X.X.X
overrange flash reading
underrange flash reading
Load cells
type of cells 1 mV/V, 2 mV/V, 3 mV/V and others
excitation voltage configurable 5 Vdc or 10 Vdc
max. excitation current 140 mA
Vexc. protection against shortcircuit
(see error at section
1.15
)
max. terminals voltage 30 Vdc
number of cells* 1 to 8 load cells (power 5 Vdc)
1 to 4 load cells (power 10 Vdc)
*(values calculated for standard 350 Ohms load cells. For
cells with different impedance, the number is limited by the
140 mA available current)
Measure
signal ranges
(see section 1.9.2)
accuracy at 25 ºC
(see section 1.9.2)
thermal stability 50 ppm/º
input impedance 20 MOhm
acquisitions / second see
Table 2
(and refresh for alarms, analog outputs and bus)
display refresh see
Table 2
step response see Table 2
0 % to 99 % signal
signal terminals plug-in screw terminals (pitch 3.81 mm)
Power
power ‘H’ 85 to 265 Vac/dc
power ‘L’ 11 to 60 Vdc and 24/48 Vac
isolation* 2500 Veff with power ‘H’
*(60 seconds)
1500 Veff with power ‘L’
consumption <1.5 W only meter
<4.0 W meter with options
power terminals plug-in screw terminals (pitch 5.08 mm)
wire section 1 to 2.5 mm2 (AWG17 to AWG14)
Configuration front keypad with 3 keys
Front protection IP65
Output and control options relay, analog, communications, ...
(see section 2)
Mechanical
mounting panel
connections plug-in screw terminal
housing ABS, polycarbonate (V0)
weight <150 gr.
front size 96 x 48 mm (1/8 DIN)
panel cut-out 92 x 44 mm
depth 91 mm (including terminals)
Temperature
operation 0 to +50 ºC
storage 20 to +70 ºC
warm-up time 15 minutes
Acquisitions / sec. Display refresh Step response
Mode standard
16 acq. / sec. 16 refresh / sec. 63 mSec.
Mode 50 Hz
50 acq. / sec. 16 refresh / sec. 20 mSec.
Mode 60 Hz
60 acq. / sec. 16 refresh / sec. 17 mSec.
Table 2 - Technical data for the configured acquisition mode
The instrument works by default with a fast acquisition mode
of 16 acquisitions per second, with a noise rejection optimized
for 50 and 60 Hz frequencies. Two additional faster acquisition
modes are available, optimized for noise rejection to a single
specific frequency of 50 Hz or 60 Hz.
To optimize the noise rejection only to 50 Hz and / or increase
the acquisition speed to 50 acquisitions per second, configure
the ‘
Mode
’ (‘
ModE
’) parameter to ‘
50.hZ
’ value. This selec -
tion increases the speed to 50 acquisitions per second and
increases the noise rejection to 50 Hz, although it reduces the
noise rejection to 60 Hz. Configure the parameter value to ‘ 60.
hZ ’ to increase to 60 acquisitions per second and maximum
rejection to 60 Hz noise, reducing the noise rejection for 50 Hz.
To configure the mode see section
1.12.7
.
1.9 Technical specifications
1.9.1 Acquisition modes