ES-2653 Rev.10
M3LU2
Space-saving Signal Conditioners M3-UNIT Series
UNIVERSAL TRANSMITTER
(field- and PC-configurable)
Functions & Features
• Universal input: mV, V, mA, T/C, RTD, resistance and potentiometer
• Easy ‘One-Step Cal’ calibration using the front three control buttons without needing a PC; PC software is also usable.
• I/O type and ranges are configurable
• Front control button function can be locked
MODEL: M3LU2–[1]/[2][3]
ORDERING INFORMATION
• Code number: M3LU2-[1]/[2][3]
Specify a code from below for each of [1] through [3].
(e.g. M3LU2-R4/A/Q)
• Specify the specification for option code /Q
(e.g. /C01)
• Use Ordering Information Sheet (No. ESU-2653).
Factory setting (indicated below) will be used if not otherwise specified.
Input: 4 – 20 mA
Output: 4 – 20 mA
INPUT – Field-selectable
DC Current & Voltage
Current
: 0 – 20 mA DC
Millivolt
: -1000 – +1000 mV DC
Voltage
: -10 – +10 V DC
Thermocouple
(PR), K (CA), E (CRC), J (IC), T (CC), B (RH), R, S, C (WRe 5-26),
N, U, L, P (Platinel II)
RTD
Pt 100, Pt 200, Pt 300, Pt 400, Pt 500, Pt 1000,
Ni 100, Ni 120, Ni 508.4Ω, Ni-Fe 604,
Cu 10 @25°C, Pt 50Ω, JPt 100
Potentiometer
Total resistance 80 – 4000 Ω
Resistance
0 – 4000 Ω
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)
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
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
RELATED PRODUCTS
• PC configurator software (model: M3CFG)
Downloadable at our 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
: Stand-alone; terminal access at the front
Connection
: Euro type connector terminal
(applicable wire size: 0.2 to 2.5 mm
2
, stripped length 8 mm)
Housing material
: Flame-resistant resin (gray)
Isolation
: Input to output to power
Overrange output
: -15 to +115 %
(Negative current output is not available.)
Zero adjustment
: -15 to +15 % (front)
Span adjustment
: 85 to 115 % (front)
Burnout (other than current or voltage (V) input)
: Upscale, downscale or no burnout selectable; Also detects wire breakdown and overrange input exceeding the electrical design limit for DC input.
Linearization (thermocouple & RTD input)
: Standard
Cold junction compensation (T/C)
: CJC sensor (included) to be attached to the input terminals
Status indicator LED
: Tri-color (green/amber/red) LED; Blinking patterns indicate operation status of the transmitter.
Configuration
:
PC Configurator
: (Model: M3LUCFG) via Windows PC connected to th front jack.
Programmable features include
:
• I/O type and range
• Zero and span adjustments
• Burnout action
• User’s linearization table setting
• User’s T/C, RTD table setting
(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
Input type and range are configurable. See Table 1 for the available input type, the minimum span, the maximum range, the conformance range (T/C) and the input conversion accuracy.
For type and range configuration, refer to the instruction manual.
■
DC current
: 50 Ω resistor incorporated
■
DC mV & voltage
Input resistance
: ≥ 1 MΩ
■
Thermocouple
Input resistance
: ≥ 1 MΩ
Burnout sensing
: ≤ 4 μA
■
RTD (2-wire, 3-wire or 4-wire)
Excitation
: ≤ 0.3 mA
Allowable leadwire resistance
: 20 Ω per wire
■
Resistance
(2-wire, 3-wire or 4-wire)
Excitation
: ≤ 0.3 mA
Allowable leadwire resistance
: 20 Ω per wire
■ Potentiometer
Excitation
: ≤ 0.3 mA
Allowable leadwire resistance
: 20 Ω per wire
OUTPUT SPECIFICATIONS
Output type and range are as follows.
For type and range configuration, refer to the instruction manual.
■ DC Current
Maximum range
: 0 – 20 mA DC
Minimum span
: 1 mA
Conformance range
: 0 – 23 mA DC
Offset
: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance
: Output drive 15 V max. at 20 mA
(Range: Load resistance) 0 – 20 mA : ≤ 750 Ω
■
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 10 mA max.; 5 mA for negative output
(Range: Load resistance)
0 – 10 V : ≥ 1 kΩ
-10 – 0 V : ≥ 2 kΩ
0 – 2.5 V : ≥ 250 Ω
-2.5 – 0 V : ≥ 500 Ω
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
: -25 to +60°C (-13 to +140°F)
Operating humidity
: 30 to 95 %RH (non-condensing)
Mounting
: DIN rail
Weight
: 100 g (0.22 lb)
PERFORMANCE
Accuracy
: See Table 1.
Cold junction compensation error
:
±1.0°C at 0 – 50°C (±1.8°F at 32 – 122°F)
Temp. coefficient
:
±0.015 %/°C [±0.008 %/°F] at -5 to +55°C [23 to 131°F] of max. range
±0.03 %/°C [±0.016 %/°F] for the following conditions:
• DC, T/C input spans ≤ 10 mV
• RTD, potentiometer, resistance spans ≤ 80 Ω
• in an ambient exceeding 55°C [131°F] or below -5°C [23°F]
Response time
: ≤ 0.2 sec. (0 – 90%, DC input)
(With the Option A, the Sync Filter set to the fastest frequency on the PC Configurator Software. Default is set to have 0.5-second response.)
Burnout response
: ≤ 10 sec.
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)
CALCULATION EXAMPLES OF OVERALL ACCURACY
•
DC Voltage
1) 0 – 200 mV
Absolute value accuracy (Table 1): 40 μV
40 μV ÷ 200000 μV × 100 = 0.02 % < 0.1 %
➠ Overall accuracy = ±0.1% of span
2) 0 – 4 mV
Absolute value accuracy (Table 1): 10 μV
10 μV ÷ 4000 μV × 100 = 0.25 % > 0.1%
➠ Overall accuracy = ±0.25 % of span
•
Thermocouple
1) K thermocouple, -150 – +1370°C
Absolute value accuracy (Table 1): 0.25°C
CJC error (1.0°C) added: 1.25°C
1.25°C ÷ 1520°C × 100 = 0.082 % < 0.1 %
➠ Overall accuracy including CJC error = ±0.1 % of span
2) K thermocouple, 50 – 150°C
Absolute value accuracy (Table 1): 0.25°C
CJC error (1.0°C) added: 1.25°C
1.25°C ÷ (150 – 50)°C × 100 = 1.25 % > 0.1 %
➠ Overall accuracy including CJC error = ±1.25 % of span
•
RTD
1) Pt 100, -200 – 800°C
Absolute value accuracy (Table 1): 0.15°C
0.15°C ÷ (800 – -200)°C × 100 = 0.015 % < 0.1 %
➠ Overall accuracy = ±0.1 % of span
2) Pt 100, 0 – 100°C
Absolute value accuracy (Table 1): 0.15°C
0.15°C ÷ 100°C × 100 = 0.15 % > 0.1 %
➠ Overall accuracy = ±0.15 % of span
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
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.
INPUT TYPE, RANGE & ACCURACY
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM