MODEL: M3LLC Space-saving Signal Conditioners M3-UNIT Series [1] INPUT STRAIN GAUGE S1: 0.0 – 1.0 mV/V S2: 0.0 – 3.0 mV/V STRAIN GAUGE TRANSMITTER S3: 0.0 – 10.0 mV/V (field- and PC-configurable) S4: 0.0 – 30.0 mV/V Functions & Features • Provides a DC output signal proportional to a bridge type strain gauge utilized in load cells and pressure transducers OUTPUT – Field-selectable • Compatibility with strain gauges of various Current bridge resistances and output ratings 0 – 20 mA DC • Supplies required excitation voltage; 0.1 – 10.0 V Voltage adjustable -2.5 – +2.5 V DC • Response time ≤ 10 msec. -10 – +10 V DC • Front control button function can be locked • CE marking POWER INPUT • UL approval DC Power R4: 10 – 32 V DC Typical Applications (Operational voltage range 9 - 36 V, ripple 10 %p-p max.) • Weighing system for tanks, hoppers and silos • Weighing system using cranes [2] CONFIGURATION OPTIONS • Pressure sensor utilizing strain gauges A: PC and field configurable • Float level meter utilizing strain gauges B: Field configurable 18 (.71) [3] OPTIONS STANDARDS & APPROVALS blank: CE marking 106 (4.17) /UL: UL approval, CE marking RELATED PRODUCTS 110.5 (4.35) • PC configurator software (model: M3CON) mm (inch) Downloadable at M-System’s web site. A dedicated cable is required to connect the module to the PC. Please refer to the internet software download site or MODEL: M3LLC–[1]–R4/[2][3] the users manual for the PC configurator for applicable cable types. ORDERING INFORMATION • Code number: M3LLC–[1]–R4/[2][3] GENERAL SPECIFICATIONS Specify a code from below for each [1] through [3]. Construction: Small-sized front terminal structure (e.g. M3LLC-S1-R4/A) Connection: Euro type connector terminal • Factory setting: Housing material: Flame-resistant resin (gray) Input signal Isolation: Input to output to power S1: 1.0 mV Overrange output: -15 to +115 % S2: 3.0 mV Zero adjustment: -15 to +15 % (front) S3: 10.0 mV Span adjustment: 85 to 115 % (front) S4: 30.0 mV Status indicator LED: Tri-color (green/amber/red) LED; Excitation voltage: 1 V Flashing patterns indicate operation status of the Output range: 4 – 20 mA transmitter. Configuration PC configurator: Programmable features include: http://www.m-system.co.jp/ M3LLC SPECIFICATIONS ES-2654 Rev.11 Page 1/4 MODEL: M3LLC • Input range and output type and range INSTALLATION • Zero and span adjustments Power Consumption (Refer to the instruction manual) •DC: Approx. 5 W ‘One-Step Cal’ calibration: With I/O type and the full-scale Operating temperature: -25 to +65°C (-13 to +149°F) range configured via the internal DIP switches, precise 0 % Max. 55°C (131°F) for UL approval and 100 % ranges are calibrated via the front control Operating humidity: 0 to 95 %RH (non-condensing) buttons with a help of LED. Mounting: DIN rail Weight: 150 g (0.33 lbs) INPUT SPECIFICATIONS ■ STRAIN GAUGE INPUT PERFORMANCE in percentage of span • Strain Gauge Accuracy: Input + output Rated output from strain gauge: Input: ±0.1 % • S1: Volt. range -10.0 – +10.0 mV, span 1.0 – 10.0 mV Output: ±0.1 % • S2: Volt. range -30.0 – +30.0 mV, span 3.0 – 30.0 mV Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) of max. • S3: Volt. range -99.9 – +99.9 mV, span 10.0 – 99.9 mV range at -5 to +55°C [23 to 131°F]; • S4: Volt. range -300.0 – +300.0 mV, span 30.0 – 300.0 mV ±0.03 %/°C (±0.02 %/°F) at <-5°C, >+55°C Consult factory for use with a compression/tension load Response time: ≤10 msec. (0 – 90 %) cells. Excitation: Set value ±250 mV • Excitation: 0.1 – 10.0 V adjustable (0.1 V increments) Line voltage effect: ±0.1 % over voltage range Maximum current: 30mA Insulation resistance: ≥ 100 MΩ with 500 V DC ■ TARE COMMAND INPUT: TTL level (5V-CMOS level), open Dielectric strength: 1500 V AC @ 1 minute collector or dry contact (input to output or power to ground) (saturation voltage ≤ 1 V, sink current 0.5 mA) 500 V AC @ 1 minute (output to power) OUTPUT SPECIFICATIONS STANDARDS & APPROVALS ■ DC CURRENT CE conformity: Maximum range: 0 – 20 mA DC EMC Directive (2004/108/EC) Minimum span: 1 mA EMI EN 61000-6-4: 2007 (Add 0.1 % to accuracy with output span 2 mA or less.) EMS EN 61000-6-2: 2005 Conformance range: 0 – 20 mA DC Approval: (Negative overrange current below 0 mA is not available.) UL/C-UL general safety requirements Offset: Lower range can be any specific value within the (UL 61010-1, CAN/CSA-C22.2 No.1010-1) output range provided that the minimum span is maintained. Load resistance: Output drive 12 V maximum ■ DC VOLTAGE Narrow Spans (mV) Maximum range: -2.5 – +2.5 V DC Minimum span: 250 mV Conformance range: -3 – +3 V DC Wide Spans (V) Maximum range: -10 – +10 V DC Minimum span: 1 V Conformance range: -11.5 – +11.5 V DC (Overrange voltage below -11.5 V is not available.) Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained. Load resistance: Output drive 10 mA maximum; 5 mA for negative output http://www.m-system.co.jp/ M3LLC SPECIFICATIONS ES-2654 Rev.11 Page 2/4 F E D C B A 9 MODEL: M3LLC EXTERNAL VIEW ■ FRONT VIEW ■ SIDE VIEW LED1 (LD1) 10 11 12 LED2 (LD2) Configuration DIP SW 7 8 9 LED3 (LD3) 1 2 3 4 MODE Button ON UP Button OFF DOWN Button SW1 Configurator Jack 1 2 3 4 5 6 7 8 ON SW3 1 2 3 OFF SW2 4 5 6 Excitation Adj. 8 Rotary SW EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 10 11 12 7 8 9 DIN RAIL 35mm wide 1 2 3 4 5 6 18 (.71) 110.5 (4.35) [5 (.20)] • When mounting, no extra space is needed between units. SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM STATUS CONTROL BUTTONS STRAIN DIP SW Isolation GAUGE + 1 Low Drift Digital Output INPUT 7 + Amplifier Computation Driver – 2 OUTPUT – 8 + 4 Low Drift DC Volt. 11 + EXC. – Stabilizer 5 POWER – 12 3 TARE COMMAND 9 INPUT (Di) + 6 10 CONFIGURATOR JACK Terminal Block http://www.m-system.co.jp/ M3LLC SPECIFICATIONS ES-2654 Rev.11 Page 3/4 7 6 5 106 (4.17) 62 (2.44) 4 3 2 1 0 MODEL: M3LLC Specifications are subject to change without notice. http://www.m-system.co.jp/ M3LLC SPECIFICATIONS ES-2654 Rev.11 Page 4/4