ustable
Response time 10 msec.
Front control button function can be locked
UL approval
Typical Applications
Weighing system for tanks, hoppers and silos
Weighing system using cranes
Pressure sensor utilizing strain gauges
Float level meter utilizing strain gauges
Specifications are subject to change without notice.
MODEL & SUFFIX CODE SELECTION
M3LLC R4/ MODEL
STRAIN GAUGE
S1
: 0.0 1.0mV/V
S2
: 0.0 3.0mV/V
S3
: 0.0 10.0mV/V
S4
: 0.0 30.0mV/V
OUTPUT SELECTION

DC Current
: Usable range 0 20mA; min. span 1mA DC Voltage
: Usable range ±2.5V; min. span 250mV
Usable range ±10V; min. span 1V
POWER INPUT
R4
: 10 32V DC
CONFIGURATION OPTIONS
A
: PC and field configurable
B
: Field configurable
OPTIONS
/UL
: UL approval
ORDERING INFORMATION
Specify code number. Orders will be shipped at default
factory settings as shown in the table below.
Ordering example:
Code number (e.g. M3LLC-S1-R4/A)
RELATED PRODUCTS
PC configurator software (model: M3CON)


Downloadable at M-Systems web site:


http://www.m-system.co.jp
PC configurator cable (model: MCN-CON)
GENERAL SPECIFICATIONS
Connection
: Removable terminal block
Housing material
: Flame-resistant resin (grey)
Isolation
:
Input to output to power
Overrange output
: Approx. -15 +115%
(Lower limit: 0mA or -11.5V)
Fine zero and span adjustments
: ±15% via the front con-
trol buttons
Configuration
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.
PC configurator
: (model: M3CON) Via Windows PC con-
nected to the front jack.
Programmable features include:
Input range and output type and range
Zero and span adjustments
Status indicator LED
: Tri-color (green/amber/red) LED;
Flashing patterns indicate operation status
of the transmitter.
18 (.71)
106
(4.17)
mm (inch)
110.5 (4.35)

ITEM
FACTORY SETTING
Input signal
S1
1.0mV


S2
3.0mV


S3
10.0mV


S4
30.0mV
Excitation voltage

1V
Output range

4 20mA M3LLC
P. 2 / 5
ES-2654 Rev.8
INPUT STRAIN GAUGE INPUT
Strain Gauge
Rated output from strain gauge
:
0.0 1.0mV/V
(-10.0 +10.0mV, span 1.0 10.0mV)
0.0 3.0mV/V
(-30.0 +30.0mV, span 3.0 30.0mV)
0.0 10.0mV/V
(-99.9 +99.9mV, span 10.0 99.9mV)
0.0 30.0mV/V
(-300.0 +300.0mV, span 30.0 300.0mV)
Consult factory for use with a compression/tension load cells.
Excitation
: 0.1 10.0V adjustable (0.1V increments)
Maximum current
: 30mA TARE COMMAND INPUT
: TTL level (5V-CMOS level),
open collector or dry contact (saturation
voltage 1V, sink surrent 0.5mA)
OUTPUT
Output type and range are configurable. See Calibration
and DIP Switch Setting. DC CURRENT
Maximum range
: 0 20mA DC
Minimum span
: 1mA*
Conformance range
: 0 20mA DC
Offset
:
Lower range can be any specific value
within the output range provided that the
minimum span is maintained.
Load resistance
: Output drive 12V maximum at 22mA

(Range) 0 20mA
: 600 maximum
*Add 0.1% to the described accuracy for spans narrower
than 2mA. DC VOLTAGE
Narrow Spans (mV)
Maximum range
: -2.5 +2.5V DC
Minimum span
: 250mV
Conformance range
: -3 +3V DC
Wide Spans (V)
Maximum range
: -10 +10V DC
Minimum span
: 1V
Conformance range
: -11.5 +11.5V DC
Offset
:
Lower range can be any specific value
within the output range provided that the
minimum span is maintained.
Load resistance
: Output drive 10mA maximum; 5mA for
negative output

(Range) 0 10V
: 1k ( minimum)
-10 0V
: 2k
0 2.5V
: 250
-2.5 0V
: 500
INSTALLATION
Power input
: Operational voltage range 9 36V DC;
approx. 5W; ripple 10% p-p max.
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
Dimensions
: W18
×H106×D110.5 mm (0.71×4.17×4.35)
Weight
:
150 g (0.33 lbs)
PERFORMANCE
Accuracy
:
Input accuracy + output accuracy
Input accuracy
: ±0.1%
Output accuracy
: ±0.1%
Temp. coefficient
: ±0.015%/°C (±0.008%/°F) of max. range
at -5 to +55°C [23 to 131°F];
±0.03%/°C (±0.02%/°F) at <-5°C, >+55°C
Response time
: 10 milliseconds (0 90%)
Excitation voltage setting accuracy
: ±250mV
Line voltage effect
: ±0.1% over voltage range
Insulation resistance
: 100M with 500V DC
Dielectric strength
: 1500V AC @1 minute
(input to output or power to ground)
500V @1 minute (output to power)
STANDARDS & APPROVALS
CE conformity
: EMC Directive (89/336/EEC)
EN 61000-6-4 (EMI)
EN 61000-6-2 (EMS)
Approval
:
UL/C-UL general safety requirements
(UL 61010-1, CAN/CSA-C22.2 No.1010-1) M3LLC
P.  / 5
ES-2654 Rev.8
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
+

+

Isolation
Terminal Block
1
Output
Driver
Digital
Computation
CONFIGURATOR
JACK
7
8
11
9
10
12
STATUS
DIP SW
OUTPUT
POWER
4
5
2
3
Low Drift
DC Volt.
Stabilizer
Low Drift
Amplifier
STRAIN
GAUGE
+

+
6
+ INPUT
EXC.
TARE COMMAND
INPUT (Di)
CONTROL BUTTONS
Configuration DIP SW
Excitation Adj.
Rotary SW
10 11 12
7 8 9
4 5 6
1 2 3
Configurator Jack
DOWN Button
UP Button
MODE Button
LED3 (LD3)
LED2 (LD2)
LED1 (LD1)

FRONT VIEW

SIDE VIEW
1
SW3
SW1
2 3 4 5 6 7 8
OFF
ON
OFF
ON
1 2 3 4
SW2
8
7
65432 1 0 F E DCBA9
EXTERNAL & INTERNAL VIEWS
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS
unit: mm (inch)
10 11 12
7 8 9
4 5 6
1 2 3
106 (4.17)
18 (.71)
110.5 (4.35)
62 (2.44)
[3.3 (.13)]
When mounting, no extra space is needed between units.
35.4 (1.39)
DIN RAIL
35mm wide M3LLC
P. 4 / 5
ES-2654 Rev.8
DIP SWITCH SETTINGS
ONE-STEP-CAL CALIBRATION
CONFIGURATION MODES & DIP SW
When you program the transmitter module, two configura-
tion modes are available: Field Configuration using DIP SW
/ control buttons, and PC Software. (The M3LLC-R4/B is for
the field configuration only.)
The internal DIP switches are used to configure excitation
and output type. Once the module is configured, precise
input and output ranges are set up with the front control
buttons using a simulator connected to the input terminals
and a multimeter connected to the output terminals as a
reference.
INPUT & OUTPUT RANGING
For example, suppose that the DIP switches (model M3LLC-
S2, 3mV/V rating) are configured for 5V excitation, and you
need to set the input range to 0 2mV/V. Turn the power
supply to the transmitter on and press MODE button to en-
ter to the Input Calibration Mode. Apply the desired mini-
mum (e.g. 0mV) and maximum (e.g. 10mV) input levels and
push the DOWN (zero) and UP (span) respectively to set
the input range.
Then the output range can be calibrated in a similar man-
ner after moving to the Output Calibration Mode by press-
ing MODE button again. Increase or decrease the simu-
lated input until the output meter shows the desired levels
and push the DOWN (zero) and UP (span) respectively for
the minimum (e.g. 4mA) and maximum (e.g. 20mA) levels.
The front LEDs colors and flashing patterns help you to
easily identify the transmitters status and confirm the set-
up actions in each step of Calibration Modes. See detailed
explanation in Calibration Flow Chart.
The calibrated input and output ranges are stored in the
internal memory. The module reads the DIP-switch-cali-
brated configuration (except for the excitation voltage) only
once after the power supply is turned on. Set the switches
with the power supply removed (except for the excitation
voltage).
FINE ZERO & SPAN ADJUSTMENTS
After the transmitter is installed and operational, fine zero
and span tuning can be also performed using the front
control buttons. Both zero and span are adjustable within
±15%.
PC SOFTWARE CONFIGURATION
When you need to apply the same setting to multiple trans-
mitters, downloading one setting from the PC is convenient.
The PC Configurator Software (model: M3CON) is available
separately.
Turn the transmitter to PC Configuration Mode (See Table
1) and all programmable features can be set up on a PC
regardless of other DIP SW setting except for the output
type must be selected with the DIP SW1-1 through SW1-4
(See Table 6).
For detailed information on the PC configuration, refer to
the M3CON instruction manual. CONFIGURATION MODE (SW3)
Table 1
MODE
SW3-3
DIP SW
OFF
Configuration mode can be
PC
ON
Confirmed with the front LED. FRONT CONTROL BUTTON LOCK (SW3)
Table 2
Table 2 setting is applicable to firmware version 3.01 or
higher (marking on the product).
LOCK
SW3-4
PC Configuration is not disabled
Unlock
OFF
when the front control button
Lock
ON
function is locked. EXCITATION VOLTAGE, COARSE (SW2)
Table 3
SW2 -
0 1 2 3 4 5 6 7 8 9 A B C D E F
Exc. Volts 0 1 2 3 4 5 6 7 8 9 10 11 12 12 12 12 EXCITATION VOLTAGE, FINE (SW3)
Table 4
POSITION
SW3-5
SW3-6
SW3-7
SW3-8
OFF
+0V
+0V
+0V
+0V
ON
+0.8V
+0.4V
+0.2V
+0.1V OUTPUT TYPE (SW3 & 1)
Table 5
OUTPUT
SW3-1 SW3-2 SW1-1 SW1-2 SW1-3 SW1-4
0 20mA
OFF OFF OFF OFF ON OFF
-2.5 +2.5V
OFF ON
ON OFF OFF ON
-10 +10V
ON OFF OFF ON OFF ON OUTPUT TYPE / PC CONFIG (SW1)
Table 6
OUTPUT
SW1-1
SW1-2
SW1-3
SW1-4
0 20mA
OFF
OFF
ON
OFF
-2.5 +2.5V
ON
OFF
OFF
ON
-10 +10V
OFF
ON
OFF
ON M3LLC
P. 5 / 5
ES-2654 Rev.8
CALIBRATION FLOW CHART
POWER ON
Amber LED
Green LED
Control
Buttons
Red LED
OFF
ON
Blink
RUN MOD