ES-2652 Rev.22
M3LU
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
Typical Applications
• Signal conversion between control room and field instrumentation with isolation
• Ideal for use as a fast solution, multifunctional spare part
MODEL: M3LU–[1]/[2][3]
ORDERING INFORMATION
• Code number: M3LU-[1]/[2][3]
Specify a code from below for each of [1] through [3].
(e.g. M3LU-R4/A/UL/Q)
• Specify the specification for option code /Q
(e.g. /C01)
• Use Ordering Information Sheet (No. ESU-2652).
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)
(‘/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 our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating (UL not available)
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
: Small-sized front terminal structure
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 %
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 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
: 130 nA ± 10 %
■
RTD (2-wire, 3-wire or 4-wire)
Excitation
: 0.2 mA ± 10 %
Allowable leadwire resistance
: Max. 20 Ω per wire
■
Resistance
(2-wire, 3-wire or 4-wire)
Excitation:
0.2 mA ±10 %
Allowable leadwire resistance:
Max. 20 Ω per wire
■ Potentiometer
Excitation:
0.2 mA ±10 %
Allowable leadwire resistance
: Max. 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 – 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 15 V maximum at 22 mA
■
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 maximum; 5 mA for negative output
INSTALLATION
Power Consumption
•
AC
:
Approx. 4 VA at 100 V
Approx. 5 VA at 200 V
Approx. 6 VA at 264 V
•
DC
: Approx. 2 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 (0.22 lb)
PERFORMANCE
Accuracy
: See Table 1.
Cold junction compensation error
:
±0.5°C maximum at 10 – 40°C
±1.0°C maximum at 0 – 50°C
±0.9°F maximum at 50 – 104°F
±1.8°F maximum 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 sec. response.
Burnout response
: ≤ 10 sec.
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
AC powered
: 2000 V AC @ 1 minute
(input to output to power to ground)
DC powered
: 1500 V AC @ 1 minute
(input to output or power to ground)
500 V AC @ 1 minute (output to power)
CALCULATION EXAMPLES OF OVERALL ACCURACY
■ CALCULATION EXAMPLES OF OVERALL ACCURACY IN %
•
DC Voltage
1) 0 – 200 mV
Absolute value accuracy (Table 1): 40μV
40μV ÷ 200000μV × 100 = 0.02 % < 0.1 %
➠ Overall accuracy = ±0.1 % of span
2) 0 – 4 mV
Absolute value accuracy (Table 1): 10μV
10μV ÷ 4000μV × 100 = 0.25 % > 0.1 %
➠ Overall accuracy = ±0.25 % of span
•
Thermocouple
1) K thermocouple, 0 – 1000°C
Absolute value accuracy (Table 1): 0.25°C
CJC error (0.5°C) added: 0.75°C
0.75°C ÷ 1000°C × 100 = 0.075 % < 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 (0.5°C) added: 0.75°C
0.75°C ÷ (150 – 50)°C × 100 = 0.75 % > 0.1 %
➠ Overall accuracy including CJC error = ±0.75 % 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
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.
INPUT TYPE, RANGE & ACCURACY
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM