MXLCF STRAIN GAUGE TRANSMITTER

MXLCF  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 M-System's 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
  EN 50581

EXTERNAL VIEW

Refer to the instruction manual for detailed procedures.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Co., Ltd.