Montalvo M3200, M, M3224, M3200LTR, M3300 Technical Manual

www.montalvo.com / Technical details subject to change without notice. Mamp-technical manual-US-07 © Montalvo

EST

.

1947

207-856-2501 / 800-226-8710
[phone]
[phone]
[phone]

Need help installing?

www.montalvo.com

TECHNICAL MANUAL

M Series Ampli er Modules

For Models M3200, M3224, M3200LTR and M3300

Publication Date: 04/22/2019

EST

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1947

p. 2

M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

INDEX

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Con guration

DIP Switches ............................................................................................3

Fuses ........................................................................................................3

DIP Switch / Fuse Location .......................................................................3

Wiring

M3200 ......................................................................................................4

M3224 ......................................................................................................6

M3200LTR ................................................................................................8

M3300 ....................................................................................................10

Calibration

Zero Point ...............................................................................................12

Calibration ...............................................................................................12

Alarm Level Adjustment .................................................................................13

Speci cations

Technical Data .........................................................................................14

M

3200

1 : Line L

2 :

3 : Line N

4 :

5 : Ground PE

6 : Ground

7 : NC.

8 : NC.

9 : +2.5V Supply

10 : + input +/- 250 mV

11 : - input +/- 250 mV

12 : -2.5V Supply

13 : Total output 0-10V / 0-100μA

14 : Total output 4-20mA / 0-20mA / 0-10V

15 : Ground (0VDC)

16 : Alarm output

2.95 (75)

4.13

(105)

1.77

(45)

1.42 (36)

0.16 (4)

Load Cell Ampliers

M

Dimensions

EST

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1947

M Series Ampli er

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Technical Manual

p. 3

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CONFIGURATION

Model

DIP Switch Settings

Output

Terminal
Affected

1**2**3456

3200
3224

3200LTR

M3300

--ON* ---

Total

0-10V*

13

- - OFF - - - 0-100A

---OFF* ON* OFF* 4-20mA*
14- - - ON OFF OFF 0-20mA

- - - ON OFF ON 0-10V

3200LTR

- ON* ----

Left

0-10V*

7

-OFF---- 0-100A

ON* -----

Right

0-10V*

8

OFF----- 0-100A

DIP Switches

Fuses

The M3200, M3200LTR and M3300 ship from the factory with fuses NOT
installed. Install the appropriate supplied fuse to match the voltage being used.
The M3224 has a resettable fuse to match the required 24V power supply.

DIP Switch / Fuse Location

* Indicates factory setting.
** DIP switches 1 and 2 have no affect on M3200 and M3224.

This module must be set up for the actual supply voltage.

If power supply is 115V

Step 1 Set power selector in position 115V
Step 2 Mount fuse 80mA T

If power supply is 230V

Step 1 Set power selector in position 230V
Step 2 Mount fuse 50mA T

Note: Power selector and fuses are
found under cover on top of module.

Caution

Failure to follow instructions

may result in equipment

damage or personal injury.

Montalvo

M3200/M3300

Amplier Modules

230

DIP Switches

(1 thru 6)

POWER Switch (AC units only)
(115V or 230V - factory set to 230V)

Cover
(Fuse NOT installed on new units ­must be installed before operation)

FUSES (AC units only)
(115V or 230V - ships with both)

EST

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1947

p. 4

M Series Ampli er

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Technical Manual

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WIRING

M3200 Overview

M3200 Dip Switch Factory Settings

Line L (1)

Line N (3)

Total Output 0-10V / 0-100µA (13)

Total Output 4-20mA / 0-20mA / 0-10V (14)

Ground (0V DC) (15)

Alarm Output (16)

(8) No Connection

(7) No Connection

(6) Ground

(5) Ground PE

(12) - 2.5V Supply

(11) - Input ± 250mV

(10) + Input ± 250mV

(9) + 2.5V Supply (excitation)

16 15

14

13 12

11

10

9

1

3

5

6

7

8

123456

y

ON

See Con guration section (p.3)
for optional DIP switch settings.

EST

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1947

M Series Ampli er

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Technical Manual

p. 5

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WIRING

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

16 15

14

13 12

11

10

9

BK WH BN

or

RD

#1

Load Cell

#2

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

BL

or

GN

16 15

14

13 12

11

10

9

#1

Load Cell

BK WH BN

or

RD

BL

or

GN

#2

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

16 15

14

13 12

11

10

9

BK WH BN

or

RD

BL

or

GN

Load Cell

* If using only a single half bridge load cell,
connect as shown for #2 load cell.

M3200 Dual Full Bridge Semiconductor Strain Gauge Load Cells

M3200 Single Full Bridge Semiconductor Strain Gauge Load Cell

Standard conductor colors for Montalvo load cell cables

4 pin connector 6 pin connector 3 pin connector

Brown (BN) Red (RD) Red (RD)
White (WH) White (WH) White (WH)

Black (BK) Black (BK) Black (BK)

Blue (BU) Green (GN) NA

M3200 Dual* Half Bridge Semiconductor Strain Gauge Load Cells

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1947

p. 6

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Technical Manual

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WIRING

M3224 Overview

No Connection (1)

+24V DC Supply (2)

No Connection (3)

Ground Supply (0V DC) (4)

Total Output 0-10V / 0-100µA (13)

Total Output 4-20mA / 0-20mA / 0-10V (14)

Ground (0V DC) (15)

Alarm Output (16)

(8) No Connection

(7) No Connection

(6) Ground (0V DC)

(5) Ground PE

(12) - 2.5V Load Cell Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Load Cell Supply (excitation)

16 15

14

13 12

11

10

9

1 24V

24V 0V

0V

3

PE

6

7

8

M

3224

123456

y

ON

See Con guration section (p.3)
for optional DIP switch settings.

M3224 Dip Switch Factory Settings

EST

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1947

M Series Ampli er

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Technical Manual

p. 7

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WIRING

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

16 15

14

13 12

11

10

9

BK WH BN

or

RD

#1

Load Cell

#2

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

BL

or

GN

16 15

14

13 12

11

10

9

#1

Load Cell

BK WH BN

or

RD

BL

or

GN

#2

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) - Input ± 250mV (signal)

(10) + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

16 15

14

13 12

11

10

9

BK WH BN

or

RD

BL

or

GN

Load Cell

* If using only a single half bridge load cell,
connect as shown for #2 load cell.

M3224 Dual* Half Bridge Semiconductor Strain Gauge Load Cells

M3224 Dual Full Bridge Semiconductor Strain Gauge Load Cells

M3224 Single Full Bridge Semiconductor Strain Gauge Load Cell

Standard conductor colors for Montalvo load cell cables

4 pin connector 6 pin connector 3 pin connector

Brown (BN) Red (RD) Red (RD)
White (WH) White (WH) White (WH)

Black (BK) Black (BK) Black (BK)

Blue (BU) Green (GN) NA

EST

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1947

p. 8

M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

www.montalvo.com / Technical details subject to change without notice. Mamp-technical manual-US-07 © Montalvo

WIRING

M3200LTR Overview

Line L (1)

Line N (3)

Total Output 0-10V / 0-100µA (13)

Total Output 4-20mA / 0-20mA / 0-10V (14)

Ground (0V DC) (15)

Alarm Output (16)

(8) Right Output 0-10V / 0-100µA

(7) Left Output 0-10V / 0-100µA

(6) Ground

(5) Ground PE

(12) - 2.5V Supply (excitation)

(11) Left - Input ± 250mV (signal)

(10) Right + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

16 15

14

13 12

11

10

9

1

3

5

6

7

8

CAL. R

ZERO R

CAL. L

ZERO L

ALARM

ALARM

POWER

Load Cell Ampliers

M

3200

LTR

0

0

123456

y

ON

See Con guration section (p.3)
for optional DIP switch settings.

M3200LTR Dip Switch Factory Settings

EST

.

1947

M Series Ampli er

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Technical Manual

p. 9

www.montalvo.com / Technical details subject to change without notice. Mamp-technical manual-US-07 © Montalvo

WIRING

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) Left - Input ± 250mV (signal)

(10) Right + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

16 15

14

13 12

11

10

9

BK WH BN

or

RD

#1 (LEFT)
Load Cell

#2 (RIGHT)

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) Left - Input ± 250mV (signal)

(10) Right + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

BK WH BN

or

RD

BL

or

GN

16 15

14

13 12

11

10

9

#1 (LEFT)
Load Cell

BK WH BN

or

RD

BL

or

GN

#2 (RIGHT)

Load Cell

(15) Ground (0V DC)

(12) - 2.5V Supply (excitation)

(11) Left - Input ± 250mV (signal)

(10) Right + Input ± 250mV (signal)

(9) + 2.5V Supply (excitation)

16 15

14

13 12

11

10

9

BK WH BN

or

RD

BL

or

GN

Load Cell

* If using only a single half bridge load cell,
connect as shown for #2 load cell.

M3200LTR Dual* Half Bridge Semiconductor Strain Gauge Load Cells

M3200LTR Dual Full Bridge Semiconductor Strain Gauge Load Cells

M3200LTR Single Full Bridge Semiconductor Strain Gauge Load Cell

Standard conductor colors for Montalvo load cell cables

4 pin connector 6 pin connector 3 pin connector

Brown (BN) Red (RD) Red (RD)
White (WH) White (WH) White (WH)

Black (BK) Black (BK) Black (BK)

Blue (BU) Green (GN) NA

EST

.

1947

p. 10

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M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

WIRING

Line L (1)

Line N (3)

Total Output 0-10V / 0-100µA (13)

Total Output 4-20mA / 0-20mA / 0-10V (14)

Ground (0V DC) (15)

Alarm Output (16)

(8) No Connection

(7) No Connection

(6) Ground

(5) Ground PE

(12) - 5VDC Supply

(11) - Input ± 30mVDC

(10) + Input ± 30mVDC

(9) + 5VDC Supply (excitation)

16 15

14

13 12

11

10

9

1

3

5

6

7

8

M3300 Overview

M3300 Dip Switch Factory Settings

123456

y

ON

See Con guration section (p.3)
for optional DIP switch settings.

EST

.

1947

M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

p. 11

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WIRING

M3300 Dual* Half Bridge Foil Gauge Load Cells

(15) Ground (0V DC)

(12) - 5V Supply (excitation)

(11) - Input ± 30mV (signal)

(10) + Input ± 30mV (signal)

(9) + 5V Supply (excitation)

BK WH BN

or

RD

16 15

14

13 12

11

10

9

BK WH BN

or

RD

#1

Load Cell

#2

Load Cell

(15) Ground (0V DC)

(12) - 5V Supply (excitation)

(11) - Input ± 30mV (signal)

(10) + Input ± 30mV (signal)

(9) + 5V Supply (excitation)

BK WH BN

or

RD

BL

or

GN

16 15

14

13 12

11

10

9

#1

Load Cell

BK WH BN

or

RD

BL

or

GN

#2

Load Cell

(15) Ground (0V DC)

(12) - 5V Supply (excitation)

(11) - Input ± 30mV (signal)

(10) + Input ± 30mV (signal)

(9) + 5V Supply (excitation)

16 15

14

13 12

11

10

9

BK WH BN

or

RD

BL

or

GN

Load Cell

* If using only a single half bridge load cell,
connect as shown for #2 load cell.

Standard conductor colors for Montalvo load cell cables

4 pin connector 6 pin connector 3 pin connector

Brown (BN) Red (RD) Red (RD)
White (WH) White (WH) White (WH)

Black (BK) Black (BK) Black (BK)

Blue (BU) Green (GN) NA

M3300 Dual Full Bridge Foil Gauge Load Cells

M3300 Single Full Bridge Foil Gauge Load Cell

EST

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1947

p. 12

M Series Ampli er

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Technical Manual

www.montalvo.com / Technical details subject to change without notice. Mamp-technical manual-US-07 © Montalvo

CALIBRATION

Zero Point

1 Connect power and load cells to M Series Ampli er as described in
WIRING section.

2 With web removed and no tension on load cell roller, adjust ZERO
potentiometer using a voltmeter:

Note: A remote meter can be used to zero the 3200/3224. Connect

meter (see WIRING section) and adjust ZERO potentiometer until
meter reads 0.

Calibration

3 Select a weight that is at least 25% of the full scale tension range expected
to be present on the load cells.

4 Suspend the weight from a non-elastic rope or strap that has been fed
through the rollers of the machine exactly as the feed material will be in the
application. It is important that the rope match the wrap angles on the
tension sensing roller that will be used when the machine is running.

Known
Weight

Rope fastened

to this roller

Load Cell

Roller

Model Output Potentiometer Connections Reading

3200/3224

M3300

Total ZERO 13 (+) 15 (-) 0V

3200LTR

Left ZERO L 7 (+) 6 (-) 0V

Right ZERO R 8 (+) 6 (-) 0V

EST

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Technical Manual

p. 13

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CALIBRATION

5 Rotate all of the rollers the rope wraps around in the direction of the weight.
This is done to counteract friction forces on the rope to the rollers, which
may cause inaccurate readings.

6 Adjust potentiometer(s) using a voltmeter:

*

Output voltage value = V. Calculated by the following formula:

V = (calibration weight/CAL. full-scale value) x 10 volts

Note: A remote meter can be used to calibrate the 3200/3224.
Connect meter (see WIRING section) and adjust CAL. potentiometer
until meter displays calibration weight.

7 Remove weight. Output should return to 0. If not, repeat steps 2, 5 and

` 6 while verifying calibration weight. Repeat as necessary until 0 and
calibrated weights are accurate.

Model Output Potentiometer Connections Reading

3200/3224

M3300

Total CAL. 13 (+) 15 (-)

*

3200LTR

Left CAL. L 7 (+) 6 (-)

*

Right CAL. R 8 (+) 6 (-)

*

Alarm Level Adjustment

Apply a weight to the tension sensing roller equal to the value that should
activate the alarm. Adjust the ALARM potentiometer until the ALARM LED
lights up. Alarm output will be high (+24 V) whenever tension drops below
the alarm level.

EST

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p. 14

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M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

SPECIFICATIONS

Supply Voltage M3200/M3200LTR/M3300 Selectable 115V/230V AC ± 10% (IEC 204-1)

Supply Voltage M3224 24VDC±15% (IEC60204-1)

Supply Frequency 48-62 Hz

Overvoltage Category II (IEC 664)

Maximum Internal Fuse Size 5x20mm 115V/80mA(T) / 230V/50mA(T)

Material Degree of In ammability UL94V0

Maximum Power Consumption 3.5 VA

Maximum Supply Fuse Size 10 A

Testing Voltage - Primary to Secondary 3.75 kV for 1 Minute

EMC-Immunity EN 50082-2, Industry

EMC-Emission EN 50081-1, Trade and Light Industry

Degree of Protection IP20 (IEC 529)

Installation Environment (Pollution Degree) 2

Connections Removable Terminal Blocks

Weight 0.14 lb (0.3 kg)

Dimension (L x W x H) 2.95 x 1.77 x 4.21 (75 x 45 x 107 mm)

Mounting DIN Rail 35 mm

Mounting Orientation Not Critical

Ambient Temperature Range: Operating 14°F to 122°F (-10°C to 50°C)

Ambient Temperature Range: Storing 14°F to 176°F (-10°C to 80°C)

Humidity < 95% Non-Condensing

Load Cell Input M3200/M2300LTR/M3224 ±250mVDC

Load Cell Input M3300 ±30mVDC

Input Impedance 100 KΩ

Load Cell Supply M3200/M2300LTR/M3224 ±2.5 VDC ±2%

Load Cell Supply M3300 ±5 VDC ±2%

Meter Output, Selectable 0 to 100μA / 0 to 10V, Max. Load 5 mA

Process Output, Selectable 0 to 20 mA / 4 to 20 mA / 0 to 10V

Process Output Load (Current) ≤ 500 Ω

Process Output Load (Voltage) > 5000 Ω

Zero Range Adj. M3200/M2300LTR/M3224 50% of Load Cell Rating [Max. 250 mVDC (±125 mV)]

Zero Range Adjustment M3300 300% of Load Cell Rating [Max. 60 mVDC (±30 mV)]

Gain Adjustment M3200/M2300LTR/M3224 11 to 510

Gain Adjustment M3300 90 to 4400

Accuracy Better Than 1%

Alarm Output Voltage 24 VDC ±15%

Alarm Output Load > 650 Ω

EST

.

1947

M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

p. 15

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NOTES

EST

.

1947

p. 16

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M Series Ampli er

__ ___________________________________________________________________________________

Technical Manual

Montalvo USA

(Corporate Headquarters)

Gorham, Maine 04038 USA

Tel: [phone]

Tel: [phone]

[e-mail]

Montalvo Europe ApS

Horsens, Denmark

Tel: [phone]

[e-mail]

Montalvo Deutchland

Hannover, Germany

Tel: [phone]

[e-mail]

Montalvo (Shanghai) Trading Co., Ltd.

Shanghai, China

Tel: [phone]

[e-mail]