ES-2663 Rev.14
M3LM
Space-saving Signal Conditioners M3-UNIT Series
POTENTIOMETER TRANSMITTER
(field- and PC-configurable)
Functions & Features
• Provides a DC output proportional to a potentiometer or slidewire position input
• 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
• High-density mounting available
MODEL: M3LM–R4/[1][2]
ORDERING INFORMATION
• Code number: M3LM-R4/[1][2]
Specify a code from below for each of [1] and [2].
(e.g. M3LM-R4/A/UL/Q)
• Specify the specification for option code /Q
(e.g. /C01)
• Orders will be shipped with default factory settings (0 – 1 kΩ input / 4 – 20 mA output).
INPUT
Total resistance 90 Ω – 20 kΩ
OUTPUT – Field-selectable
Current
0 – 20 mA DC
Voltage
-2.5 – +2.5 V DC
-10 – +10 V DC
POWER INPUT
DC Power
R4:
10 – 32 V DC
(Operational voltage range 9 - 36 V, ripple 10 %p-p max.)
[1] CONFIGURATION OPTIONS
A
: PC and field configurable
B
: Field configurable
[2] 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 cable (model: MCN-CON or COP-US)
• PC configurator software (model: M3CFG)
Downloadable at our web site.
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
: Upscale (default), downscale or no burnout selectable
Status indicator LED
: Tri-color (green/amber/red) LED; Blinking patterns indicate operation status of the transmitter.
Configuration
PC configurator
: (Model: M3LMCFG) via Windows PC connected to th front jack.
Programmable features include
:
• Input range
• Output type
• Output range
• Zero and span adjustments
• Burnout action
• User’s linearization table setting (max. 125 points, specified within -15 to +115 % for both input and output)
(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
■ Potentiometer
: Total resistance 90 Ω – 20 kΩ
Minimum span of each range
0 - 90 Ω: 2.5 Ω
0 - 200 Ω: 3 Ω
0 - 400 Ω: 3 Ω
0 - 1000 Ω: 10 Ω
0 - 20 kΩ: 10 Ω
Excitation
: ≤ 0.65 V DC (at 1 kΩ)
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
•
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 (0.22 lb)
PERFORMANCE
Accuracy
: Input accuracy + output accuracy
Input accuracy
: (% of input range) inversely proportional to the span
0 – 90 Ω: ±0.02 (%)
0 – 200 Ω: ±0.02
0 – 400 Ω: ±0.01
0 – 1000 Ω: ±0.01
0 – 20 kΩ: ±0.02
Output accuracy (% of output range)
: ±0.04 %; inversely proportional to the span.
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F) of max. range at -5 to +55°C (23 to 131°F)
Response time
: ≤ 0.9 sec. (0 – 90 %)
Burnout response
: ≤ 10 sec.
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 or power to ground)
500 V AC @ 1 minute (output to power)
CALCULATION EXAMPLES OF OVERALL ACCURACY
[Example] Input Range 250 – 750 Ω, Output Range 1 – 5 V
Max. Input Range (1000 Ω) ÷ Span (500 Ω) × 0.01 % + Max. Output Range (20 V) ÷ Span (4 V) × 0.04 % = 0.22 %
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
Approval
:
UL/C-UL general safety requirements
(UL 61010-1, CAN/CSA-C22.2 No.1010-1)
EXTERNAL VIEW
For M3LM-R4/A, 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.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM