ES-1705 Rev.18
MXLCF
Plug-in Signal Conditioners MX-UNIT
STRAIN GAUGE TRANSMITTER
(front configurable, high speed, exitation 12 V 120 mA)
Functions & Features
• Provides a DC output signal proportional to a bridge type strain gauge utilized in load cells and pressure transducers
• Compatibility with strain gauges of various bridge resistances and output ratings
• Supplies required excitation voltage; 0.1 – 12.0 V adjustable; ≥ 85 Ω, ≤ 120 mA
• Wide-range adjustments: 0 – 100 % for zero and gain
• Response time ≤ 10 millliseconds
• Isolation up to 2000 V AC
• Loop test output
Typical Applications
• Weighing system for tanks, hoppers and silos
• Weighing system using cranes
• Pressure sensor utilizing strain gauges
• Float level meter utilizing strain gauges
MODEL: MXLCF–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: MXLCF-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. MXLCF-S1V1-M2/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01/SET)
[1] INPUT STRAIN GAUGE
S1
: 0.0 – 1.0 mV/V
S2
: 0.0 – 3.0 mV/V
S3
: 0.0 – 10.0 mV/V
S4
: 0.0 – 30.0 mV/V
[2] OUTPUT
Current
Z1
: Range 0 – 20 mA DC (Load resistance 600Ω max.)
Voltage
V1
: Range -1 – +1 V DC (Load resistance 1000Ω min.)
V2
: Range -10 – +10 V DC (Load resistance 10kΩ min.)
[3] POWER INPUT
AC Power
M2
: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P
: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
EX-FACTORY SETTING
/SET
: Preset according to the Ordering Information Sheet
(No. ESU-1705)
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to power
Overrange output
: Approx. -15 to +115 %
Excitation adjustment
: 0.1 – 12.0 V (front)
Zero adjustment
: 0 – 100 % (front)
Gain adjustment
: 0 – 9.99 (front)
Tare adjustment
: -999.9 – 999.9 % (front or by external contact)
Programming
: Via front keys
• Scaled range
• Moving average
• etc...
(Refer to the instruction manual for details)
■ DISPLAY
LED
: 8 mm (.31”) 7 segment, red
Number of display digits
: 4 digits for DATA display; 2 digits for ITEM display
Scaling
: -9999 to 9999
(decimal point position selectable)
PV indication
: Input signal in engineering unit
Overrange indication
: LEDs blinking
Power saving mode
: Displays turn off if the keys are untouched for a preset time period
LEDs
: Red, PL1 turns on with negative polarity, PL4 turns on with contact input on.
INPUT SPECIFICATIONS
■
Strain Gauge Input
•
Strain Gauge
Sensor sensitivity
setting
S1: 0.0010 - 0.9999mV/V
S2: 0.010 - 3.000mV/V
S3: 0.010 - 9.999mV/V
S4: 0.10 - 30.00mV/V
Sensor sensitivity setting min. step
:
S1: 0.0001 mV/V
S2: 0.001 mV/V
S3: 0.001 mV/V
S4: 0.01 mV/V
Default setting
:
S1: 0.9999 mV/V
S2: 3.000 mV/V
S3: 9.999 mV/V
S4: 30.00 mV/V
Rated output from strain gauge
:
S1: -9.999 – +9.999 mV, span 1.000 – 9.999 mV
S2: -30.00 – +30.00 mV, span 3.00 – 30.00 mV
S3: -99.99 – +99.99 mV, span 10.00 – 99.99 mV
S4: -300.0 – +300.0 mV, span 30.0 – 300.0 mV
Input voltage setting min. step
:
S1: 0.001 mV
S2: 0.01 mV
S3: 0.01 mV
S4: 0.1 mV
Note: Consult factory for use with a compression/tension load cells.
•
Excitation
: 0.1 – 12.0 V adjustable (0.1 V increments)
Maximum current
: 120 mA
Load resistance
: 85 Ω minimum
Default setting
: 1.0 V
■
Contact Input
: TTL level (5V-CMOS level), open collector or dry contact (detecting voltage: approx. 5 V, saturation voltage: ≤ 1 V, sink current: 0.5 mA)
OUTPUT SPECIFICATIONS
■
DC Current
: 0.0 – 20.0 mA DC
Operational range
: 0.0 – 24.0 mA DC
Minimum increment
: 0.1 mA
Default setting:
4.0 – 20.0 mA DC
■
DC Voltage
Code V1
: -1.00 – +1.00 V DC
Operational range
: -1.15 – +1.15 V DC
Minimum increment
: 10 mV
Code V2
: -10.0 – +10.0 V DC
Operational range
: -11.5 – +11.5 V DC
Minimum increment
: 100 mV
Note: Set to the 100 % output with a larger value than the
0 % output value.
Default setting:
Code V1
: -1.00 – +1.00 V DC
Code V2
: -10.0 – +10.0 V DC
INSTALLATION
Power consumption
•
AC
: Approx. 16 VA
•DC
: Approx. 7 W
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 450 g (0.99 lb)
PERFORMANCE
Moving average in 64 samples
Accuracy
: Input + output
Input
: ±0.1 %
Output
: ±0.1 %
Min. span required to ensure the accuracy
: 20 % of the selectable input and output range.
Display accuracy
: Input accuracy ±1 digit
(with 0.0 – 100.0 scaling)
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: (0 – 90 %)
Moving Average:
Without: Approx. 5 msec.
4 samples: Approx. 10 msec.
8 samples: Approx. 15 msec.
16 samples: Approx. 20 msec.
32 samples: Approx. 40 msec.
64 samples: Approx. 70 msec.
Excitation
: Set value ±250 mV
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute (input to output to power to ground)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Installation Category II
Pollution Degree 2
Input to output to power: Basic insulation (300 V)
RoHS Directive
EXTERNAL VIEW
Refer to the instruction manual for detailed procedures.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM