M2PRU MSYSTEM | Alldatasheet

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MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 1/6 http://www.m-system.co.jp/ Super-mini Signal Conditioners Mini-M Series PULSE SCALER (field-configurable) Functions & Features

  • Converts pulse rate into convenient engineering unit for display on a totalizing counter or meter
  • Excitation
  • Scaling factor adjustable of 1.0000 × 100 to 0.0001 × 10–6
  • Various outputs (open collector, voltage pulse and AC/DC switch)
  • Three-way isolation Typical Applications
  • Positive displacement flowmeters and turbine flowmeters
  • Magnetic tachometers Model 23 (.91) (2.99) mm (inch) 124 (4.88) MODEL: M2PRU–[1][2][3]–[4][5]

ORDERING INFORMATION

  • Code number: M2PRU-[1][2][3]-[4][5] Specify a code from below for each of [1] through [5]. (e.g. M2PRU-A24A-M2/CE/Q)
  • Scaling factor (e.g. 0.7000 × 10–2)
  • Specify the specification for option code /Q (e.g. /C01/S01) [1] INPUT A1: Open collector A2: Mechanical contact C: Voltage pulse (sensitivity 2 V) H: Two-wire current pulse [2] EXCITATION 4: 12 V DC / 30 mA 7: 24 V DC / 30 mA [3] OUTPUT A: Open collector (max. 100 kHz) M: 5 V pulse (max. 100 kHz) N: 12 V pulse (max. 100 kHz) P: 24 V pulse (max. 100 kHz) R: AC/DC switch (max. 1 kHz) (‘/UL’ is not selectable for ‘Standards & Approvals’ code.) ( ) = Max. frequency [4] 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) [5] OPTIONS (multiple selections) 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)

MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 2/6 http://www.m-system.co.jp/ CAUTION 1) The M2PRU’s output waveform is not uniform due to its scaling method. The user must be aware that it may be inconvenient for certain types of application. 2) The M2PRU is designed to accept at the maximum of 100 kHz, which may cause errors due to chattering in the input pulses. A filter circuitry (time constant: approx. 1 msec.) is incorporated to eliminate unwanted chattering when the mechanical contact input is specified. It is effective for most relay types, however, an external CR filter as indicated below, could be added if the user need improvement. Limit the input frequency to 10 Hz at maximum. r Relay R PULSE SCALER C = 100 µF R = 100Ω 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 Chattering protection: Filter provided for mechanical contact input (time constant: approx. 1 msec.) Input pulse sensing: DC coupled; capacitor coupling (automatic trigger*) is field selectable with the side DIP switch for the voltage pulse input. *Capacitor coupling, with which the detecting levels are automatically set within two peaks of the waveforms, is effective way to detect those with DC offset. However, it may be ineffective if the duty ratio is extremely high or low. The automatic trigger method can compensate such irregular pulses. Scaling factor adjustment: 10-position rotary switch; 1.0000 × 100 – 0.0001 × 10–6; factory set to 1.0000 × 100 if not specified when ordering Output pulse width adjustment: Single-turn screwdriver adjustment (front); 5 μsec. – 400 msec. (one-shot type); Factory set to 5 μsec. except for the mechanical contact input set to 15 msec. or AC/DC switch output set to 500 μsec. (Min. 400 μsec. recommended for AC/DC switch output of which the internal voltage drop value may increase with a shorter pulse width.) Output pulse width range selector: Double-throw SW (front) INPUT SPECIFICATIONS Excitation: Shortcircuit protection; limited to approx. 40 mA at shortcircuit ■ Open Collector Frequency range: 0 – 100 kHz Pulse width time requirement: Min. 5 μsec. for ON and OFF Sensing: Approx. 24 V DC @2 mA Detecting levels: ≤ 400 Ω / 0.8 V for ON, ≥ 1200 Ω / 2.4 V for OFF ■ Mechanical Contact Frequency range: 0 – 30 Hz Pulse width time requirement: Min. 10 msec. for ON and OFF Sensing: Approx. 24 V DC @2 mA Detecting levels: ≤ 400 Ω / 0.8 V for ON, ≥ 1200 Ω / 2.4 V for OFF ■ Voltage Pulse Waveform: Square or sine Frequency range: 0 – 100 kHz (min. 10 Hz for sine waves) Pulse width time requirement: ≥ 5 μsec. for high and low levels Input impedance: ≥ 10 kΩ Max. input voltage across the terminals: ±50 V Detecting levels DC coupled: ≥ 2 V DC for high level; ≤ 1 V DC for low level Capacitor coupled: ≥ 2 Vp-p ■ Two-wire Current Pulse Frequency range: 0 – 100 kHz Pulse width time requirement: Min. 5 μsec. for high and low levels Detecting levels: ≥ 10 mA for high level ≤ 5 mA for low level Maximum current: ±30 mA Input resistance: Receiving resistor 200 Ω

MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 3/6 http://www.m-system.co.jp/ OUTPUT SPECIFICATIONS ■ Open Collector: 50 V DC @200 mA (resistive load) Maximum frequency: 100 kHz Saturation voltage: 0.6 V DC ■ Voltage Pulse Maximum frequency: 100 kHz High level: Rating (5, 12 or 24 V) ±10 % Low level: ≤ 0.5 V Load resistance: ≥ 500 Ω for 5 V ≥ 1200 Ω for 12 V ≥ 4800 Ω for 24 V ■ AC/DC Switch

132 V AC @200 mA (cos ø = 1)

30 V DC @200 mA (resistive load)

Maximum frequency: 1 kHz Internal voltage drop: ≤ 3 V INSTALLATION Power Consumption

  • AC: Approx. 4 VA at 100 V Approx. 5 VA at 200 V Approx. 6 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 Response time: 25 μsec. + input cycle + output cycle (time required for the first pulse to be output from a train of pulse input) 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 Measurement Category II (output) Installation Category II (power) Pollution Degree 2 Open collector/voltage pulse output Input or output to power: Reinforced insulation (300 V) Input to output: Basic insulation (300 V) AC/DC switch output Input or output to power: Reinforced insulation (300 V) Input to output: Reinforced 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)

MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 4/6 http://www.m-system.co.jp/ EXTERNAL VIEW Scaling Factor Pulse Width Adj. Pulse Width Range Selector *Settings 7 through 9 are invalid. No pulse output with these settings. The front cover cannot be opened to 180 deg. when flush with neighboring units. ■ FRONT VIEW (with cover open) ■ RIGHT SIDE VIEW Pulse Sensing Type Selector DC AC : DC coupling : Capacitor coupling DC AC (A) 10 (B) 10 (C) 10 (D) 10 (E) 10 –n * ■ SCALING FACTOR Positions for the rotary switches 10 –1 through 10 –n apply re- spectively to each digit of the decimals and exponential as shown below. Output Rate = Input Rate × 0. (A)(B)(C)(D) × 10 –(E) where the scaling factor is adjustable from 1 .0000 × 10 –0 thr. 0.0001 × 10 –6 [Examples] Scaling factor 0.1440: Scaling factor 1 .0000 is special: ■ PULSE WIDTH Factory adjusted to a suitable value. Use only when the output device (counter) is not able to read the output pulses. Min. 400 μsec. recommended for AC/DC switch output of which the internal voltage drop value may increase with a shorter pulse width. OFFH ON L OUTPUT TYPE Bold section of the waveform is adjustable. VOLTAGE PULSE OPEN COLLECTOR AC/DC SWITCH ■ PULSE WIDTH RANGE Selects adjustable range of the output pulse width. L (Left) : Approx. 0.2 – 10 msec. CTR (Center) : Approx. 5 – 200 μsec. R (Right) : Approx. 10 – 400 msec. ■ PULSE SENSING TYPE Provided only when the voltage pulse input is selected. Factory set to ‘DC coupling.’ When the DC offset is too large to detect by DC coupling, switch to ‘Capacitor coupling.’ Refer to the instruction manual for detailed procedures.

MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 5/6 http://www.m-system.co.jp/ EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 21.5 (.85) 70.5 (2.78) 6 (.23) 59 (2.32) DIN RAIL 35mm wide [4 (.16)] 8–M3 SCREW 72 (2.83) 23 (.91) 2–4.2x5 (.17x.20) MTG HOLE 6 (.24) deep 116.7 (4.59)

  • When mounting, no extra space is needed between units. 14 13 4 (.16) SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Isolation Base Socket Waveform Shaper Output Driver OUTPUT U(+) V(–) POWER Voltage Supply INPUT SENSOR EXCITATION One-shot ■ Mechanical Contact Open Collector Input Connection Examples PWR ■ Voltage Pulse
  • DC Coupled PWR ■ Open Collector Output Connection Examples (+) (–) ■ Voltage Pulse ■ AC/DC SWITCH SCALING FACTOR ADJ. Scaler PULSE WIDTH ADJ. 12kΩ 24V + 5 + 5
  • Capacitor Coupled PWR + 5 ■ 2-Wire Current Pulse
  • Built-in Excitation Vsns 2-WIRE PICK-UP
  • External DC Supply Vsns 2-WIRE PICK-UP + DC SUPPLY 200Ω 200Ω PULSE SENSING TYPE SELECTOR PULSE WIDTH RANGE SELECTOR * Provided only for voltage pulse input.

MODEL: M2PRU M2PRU SPECIFICATIONS ES-5076 Rev.18 Page 6/6 http://www.m-system.co.jp/ Specifications are subject to change without notice.