M2LCS

M2LCS

Super-mini Signal Conditioners Mini-M Series

STRAIN GAUGE TRANSMITTER

Functions & Features
• Provides a DC output signal compatible with a bridge type strain gauge utilized in load cells, pressure transducers
• Supplies required excitation voltage
• Excitation adjustable from 2 to 10 V
• Wide-range adjustment: 0 – 80 % for zero, 100 – 20 % for span
• Three-way isolation
Typical Applications
• Weighing system for tanks, hoppers, silos
• Weighing system using cranes
• Float level meter utilizing strain gauges

MODEL: M2LCS–[1][2]–[3][4]

ORDERING INFORMATION
• Code number: M2LCS-[1][2]-[3][4]
 Specify a code from below for each [1] through [4].
  (e.g. M2LCS-2A-M2/K/CE/Q)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
  (e.g. /C01/S01)
Note: Must be used with its socket.  NOT installable to a multi-unit installation base. (e.g. model: M2BS-16)

[1] INPUT STRAIN GAUGE
1: 1 mV/V
12: 1.25 mV/V
15: 1.5 mV/V
2: 2 mV/V
3: 3 mV/V
4: 4 mV/V
5: 5 mV/V
6: 10 mV/V
7: 20 mV/V
0: Specify (strain gauge and excitation)

[2] OUTPUT
Current
A: 4 – 20 mA DC (Load resistance 750 Ω max.)
B: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D: 0 – 20 mA DC (Load resistance 750 Ω max.)
E: 0 – 16 mA DC (Load resistance 900 Ω max.)
F: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)

[3] POWER INPUT
AC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)
(90 – 264 V for UL)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
R2: 11 – 27 V DC
(Operational voltage range 11 – 27 V, ripple 10 %p-p max.)
(Select ‘/N’ for ‘Standards & Approvals’ code.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
(110 V ±10 % for UL)

[4] OPTIONS (multiple selections)
Response Time (0 – 90 %)
blank: Standard (≤ 0.5 sec.)
/K: Fast Response (Approx. 25 msec.)
Standards & Approvals (must be specified)
/N: Without CE or UL
/CE: CE marking
/UL: UL approval, CE marking
Other Options
blank: none
/Q: Option other than the above (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 (UL not available)
TERMINAL SCREW MATERIAL
/S01: Stainless steel (UL not available)

GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3 screw terminals (torque 0.8 N·m)
Screw terminal: Chromated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Overrange output: Approx. -10 to +120 % at 1 – 5 V
Excitation adjustment: 2 – 10 V (front)
Zero adjustments (tare): 0 – 80 % (front)
(Excitation voltage: factory default)
Span adjustment: 100 – 20 % (front)
(Excitation voltage: factory default)

INPUT SPECIFICATIONS
■ Input: Bridge voltage from load cells
• Strain Gauge
Rated output from strain gauge: 1 – 20 mV/V;
Input to the transmitter must be over 3 mV.
• Excitation: 2 – 10 V adjustable (5 V standard)
Maximum current: 35 mA

OUTPUT SPECIFICATIONS
■ DC Current: 0 – 20 mA DC
Minimum span: 1 mA
Offset: Max. 1.5 times span
Load resistance: Output drive 15 V max.
■ DC Voltage: -10 – +12 V DC
Minimum span: 5 mV
Offset: Max. 1.5 times span
Load resistance: Output drive 1 mA max.; at ≥ 0.5 V

INSTALLATION
Power Consumption
•AC:
 Approx. 3 VA at 100 V
 Approx. 4 VA at 200 V
 Approx. 5 VA at 264 V
•DC: Approx. 3 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: 150 g (0.33 lb)

PERFORMANCE in percentage of span
Accuracy: ±0.1 % (input ≥ 3 mV)
Linearity: ±0.05 % (Input ≥3 mV)
Temp. coefficient: ±0.02 %/°C (±0.01 %/°F) (input ≥ 3 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 or output to power: Reinforced insulation (300 V)
  Input to output: Basic insulation (300 V)
RoHS Directive
  EN 50581
Approval:
UL/C-UL nonincendive Class I, Division 2,
  Groups A, B, C, and D
  (ANSI/ISA-12.12.01, CAN/CSA-C22.2 No.213)
UL/C-UL general safety requirements
  (UL 61010-1, CAN/CSA-C22.2 No.61010-1)

FRONT VIEW

• Coarse Zero Adj. (auxiliary): Used when the zero cannot be adjusted with only the coarse and fine zero adjustments.
• Excitation Adj.: Factory adjusted.
• Coarse Zero Adj.: Tare adjustment. Approx. 5 % of input span adjustable with each increment. Max. 80 % by 16 positions.
• Coarse Span Adj.: Gain adjustment. 100 – 20 % of input span adjusted by 16 positions.
• Fine Zero Adj.: Tare adjustment
• Fine Span Adj.: Gain adjustment

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Việt Nam

Email: Sales@M-System.com.vn