M3LPA2 FREQUENCY TRANSMITTER

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M3LPA2 FREQUENCY TRANSMITTER Open collector, dry contact, voltage pulse, two-wire current, RS-422 line driver selectable; 0-200 kHz max. Excitation 4 V, 8 V or 12 V selectable Output selectable within 0-20 mA and ±10 V 100-240 Vac or 24 Vdc powered DIP switch or PC configuration 101-point linearization using the PC Configurator

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Detail

M3LPA2  FREQUENCY TRANSMITTER
(field- and PC-configurable)

Functions & Features
• Converts the output from a pulse-type transducer into a standard process signal
• Sensor excitation
• Easy ‘One-Step Cal’ calibration using the front three control buttons without needing a PC; PC software is also usable.
• Both input and output type and range are configurable
• Front control button function can be locked
Typical Applications
• Positive displacement flowmeters, turbine flowmeters and vortex flowmeters
• Measuring rotation speed of a machine generating dry contact signals

MODEL: M3LPA2-[1]/[2][3]

ORDERING INFORMATION
• Code number: M3LPA2-[1]/[2][3]
Specify a code from below for each [1] through [3].
  (e.g. M3LPA2-R4/A/UL/Q)
• Specify the specification for option code /Q
  (e.g. /C01)
• Factory default setting:
  Input type: Open collector
  Frequency range: 0 – 100 kHz
  Sensor excitation: 12 V DC / 20 mA
  Output range: 4 – 20 mA
  Detecting level: 2 V

INPUT – Field-selectable
Open collector
Mechanical contact
Voltage pulse
Two-wire current pulse
RS-422 line driver pulse

EXCITATION SELECTION
4 V DC / 20 mA
8 V DC / 20 mA
12 V DC / 20 mA

OUTPUT – Field-selectable
Current
0 – 20 mA DC
Voltage
-2.5 – +2.5 V DC
-10 – +10 V DC

[1] POWER INPUT
AC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)
(‘/UL’ is not selectable for ‘Standards & Approvals’ code.)
DC Power
R4: 10 – 32 V DC
(Operational voltage range 9 - 36 V, ripple 10 %p-p max.)

[2] CONFIGURATION OPTIONS
A: PC and field configurable
B: Field configurable

[3] OPTIONS (multiple selections)
Standards & Approvals
blank: CE marking
/UL: UL approval, CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating (UL not available)

RELATED PRODUCTS
• PC configurator software (model: M3CFG)
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 the users manual for the PC configurator for applicable cable types.

GENERAL SPECIFICATIONS
Construction: Small-sized front terminal structure
Connection: Euro type connector terminal
(applicable wire size: 0.2 to 2.5 mm2, stripped length: 8 mm)
Housing material: Flame-resistant resin (gray)
Isolation: Input to output to power
Overrange output: -15 to +115 %
Zero adjustment: -15 to +15 % (front)
Span adjustment: 85 to 115 % (front)
Status indicator LED: Tri-color (green/amber/red) LED; Blinking patterns indicate operation status of the transmitter.
PC configurator: Programmable features include:
• I/O type and range, detecting level
• Zero and span adjustments
• User’s linearization table setting
(max. 101 points, specified within -15 to +115 % for both input and output)
• Sampling time (0.05 – 100 sec.)
(Refer to the instruction manual)
‘One-Step Cal’ calibration: With I/O type and the full-scale range configured via the internal DIP switches, precise 0 % and 100 % ranges are calibrated via the front control buttons with a help of LED. Also I/O calibration and fine adjustment are available with a PC.
Configurator connection: 2.5 dia. miniature jack;
RS-232-C level

INPUT SPECIFICATIONS
Measurable frequencies: Minimum span 10 % of the frequency range selected in Table 2. (5 % for 0 – 200 kHz range)
See each input type for the maximum span.
Pulse width time requirement: Min. 5 μsec., max. 10 sec.
Open Collector
Maximum frequency: 0 – 200 kHz
Excitation: 4 V
Sensing voltage/current: Approx. 3V / 0.7 mA
Input requirements:
≤ 200 Ω / 0.2 V for ON; ≥ 2 kΩ / 1 V for OFF
Detecting level: 0.6 V
Excitation: 8 V
Sensing voltage/current: Approx. 6V / 1.5 mA
Input requirements:
≤ 600 Ω / 1 V for ON; ≥ 4 kΩ / 3 V for OFF
Detecting level: 2 V
Excitation: 12 V
Sensing voltage/current: Approx. 9V / 2.3 mA
Input requirements:
≤ 400 Ω / 1 V for ON; ≥ 2 kΩ / 3 V for OFF
Detecting level: 2 V
Mechanical Contact
Maximum frequency: 0 – 10 Hz
Excitation: 4 V
Sensing voltage/current: Approx. 3V / 0.7 mA
Input requirements:
≤ 200 Ω / 0.2 V for ON; ≥ 2 kΩ / 1 V for OFF
Detecting level: 0.6 V
Excitation: 8 V
Sensing voltage/current: Approx. 6V / 1.5 mA
Input requirements:
≤ 600 Ω / 1 V for ON; ≥ 4 kΩ / 3 V for OFF
Detecting level: 2 V
Excitation: 12 V
Sensing voltage/current: Approx. 9V / 2.3 mA
Input requirements:
≤ 400 Ω / 1 V for ON; ≥ 2 kΩ / 3 V for OFF
Detecting level: 2 V
Voltage Pulse
Maximum frequency
: 0 – 200 kHz
Waveform: Square or sine
Input impedance: ≥ 10 kΩ
Input amplitude: Min. 0.1 Vp-p, max. 100 V p-p
(30 V rms, 42.4 V peak or 60 V DC for UL approval)
Max. voltage between input terminals: 100 V
(30 V rms, 42.4 V peak or 60 V DC for UL approval)
Detecting levels: -2 – +4 V
(Detecting voltage in the internal circuit)
Two-wire Current Pulse
Maximum frequency: 0 – 200 kHz
Input resistance: Receiving resistor 100 Ω
Input range: 0 – 25 mA
Minimum pulse amplitude: 10 mA
Detecting levels: -2 – +4 V
(Detecting voltage in the internal circuit)
RS-422 Line Driver Pulse
Maximum frequency: 0 – 200 kHz
Receiver: Conforms to RS-422

OUTPUT SPECIFICATIONS
■ DC Current
Maximum range: 0 – 20 mA DC
Minimum span: 1 mA
Conformance range: 0 – 24 mA DC
(Negative overrange current below 0 mA 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 12 V maximum
DC Voltage
Narrow Spans
  Maximum range: -2.5 – +2.5 V DC
  Minimum span: 250 mV
  Conformance range: -3 – +3 V DC
Wide Spans
  Maximum range
: -10 – +10 V DC
  Minimum span: 1 V
  Conformance range: -11.5 – +11.5 V DC
Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance: Output drive 1 mA maximum

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: -25 to +65°C (-13 to +149°F)
Max. 55°C (131°F) for UL approval
Operating humidity: 0 to 95 %RH (non-condensing)
Mounting: DIN rail
Weight: 100 g (3.53 oz)

PERFORMANCE
Accuracy: Input accuracy + output accuracy
  Input accuracy: ±0.03 % of input range (Table 2)
  Output accuracy: ±0.03 % of output range  (When the output span is not more than 2 mA, add 0.1 % to the accuracy)
The input accuracy is inversely proportional to the input span; while the output accuracy is likewise inversely proportional to the output span.
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) of I/O range at -5 to +55°C [23 to 131°F]
Response time: 0.5 sec. + one pulse cycle or sampling time, whichever is larger (0 – 90 %)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @1 minute  (input to output to power to ground)

CALCULATION EXAMPLES OF OVERALL ACCURACY
[Example] Open collector input, 0 – 50 kHz; 1 – 5 V output.
Selected freq. range (100 kHz) ÷ Input span (50 kHz)× Accuracy (0.03 %)= 0.06 % (Input accuracy)
Selected output range (20 V) ÷ Output span (4 V) × Accuracy (0.03 %)= 0.15 % (Output accuracy)
Overall accuracy = 0.06 + 0.15 = ±0.21 %

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 general safety requirements
  (UL 61010-1, CAN/CSA-C22.2 No.1010-1)

EXTERNAL VIEW

The DIP switch setting is required to select output types before setting a precise output range using the PC configurator software.
For detailed information on the configuration and calibration, refer to the instruction manual.

ADJUSTING DETECTING LEVEL
A specific sensitivity scale is applied according to the pulse amplitude by setting up the DIP switch and PC Configurator Software (model: M3CFG). The scaled input voltage is then compared to the detecting level at -2.00 through +4.00 V.
For open collector input, be sure to adjust the voltage to following values if it has been changed for other input types.
  Detecting level:
    0.6 V (4 V excitation)
    2 V (8 V / 12 V excitation)
With DC coupling, the scaled maximum input voltage level voltage must be higher than and the scaled minimum input voltage level must be lower than the detecting level so that the pulse state is accurately detected.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

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