ES-1992 Rev.6

MODEL

Power Transducer Series L-UNIT

LSMT

Functions & Features

• Converting all major factors required for power

management into DC outputs • Compact design for

6 measuring items • Saving installation work and

space • DC output containing little ripple is ideal

for computer input • Isolation up to 2000V AC

Typical Applications

• Monitoring panels

MODEL & SUFFIX CODE SELECTION

MULTI POWER TRANSDUCER

Voltage

1 : 0 – 10mV DC

2 : 0 – 100mV DC

3 : 0 – 1V DC

4 : 0 – 10V DC

5 : 0 – 5V DC

6 : 1 – 5V DC

0 : Specify voltage

P. 1 / 4

mm (inch)

112

(4.41)

98

(3.86)

175

(6.89)

1

2

3

4

5

6

ZERO

SPAN

0

1

2

34

5

6

7

8

9

10

11

12

MODEL

CONFIGURATION

1 : 3-phase / 3-wire

2 : Single-phase / 2-wire*

3 : Single-phase / 3-wire*

*Specify input frequency.

INPUT (unbalanced load)

1 : 110V / 5A AC

2 : 110V / 1A AC

3 : 220V / 1A AC

4 : 220V / 5A AC

A : 100V / 200V / 1A AC**

B : 100V / 200V / 5A AC**

*Selectable with single-phase / 3-wire system

MEASURING ITEM

*Selectable with 3-phase / 3-wire system

OUTPUT SIGNAL POLARITY (var & PF)

Z : No var or PF measuring

P : Negative in lag, positive in lead

M : Negative in lead, positive in lag

0 : No frequency measuring

1 : 45 – 55 Hz

2 : 55 – 65 Hz

3 : 45 – 65 Hz

OUTPUT

Current

A : 4 – 20mA DC

G : 0 – 1mA DC

J : 0 – 5mA DC

Z : Specify current

AUXILIARY POWER SUPPLY

AC Power

DC Power

B : 100V AC

R : 24V DC

C : 110V AC

H : 220V AC

V : 48V DC

F : 120V AC

J : 240V AC

P : 110V DC

ORDERING INFORMATION

Specify code number and variables. Use Ordering In-

formations Sheet (No. ESU-1992) for single-phase sys-

tem.

•Code number (e.g. LSMT-11-1P1A-C)

•Watt range (e.g. 0 – 1000W)

•Var range (e.g. lag 1000 – 0 – lead 1000 var)

•Frequency range

(for single phase input only; e.g. 50 Hz)

•Special DC output range (For codes Z & 0)

GENERAL SPECIFICATIONS

Construction: stand-alone; terminal access at the front

Connection: M4 screw terminals (torque

≤1.2 N·m)

Coating:

melamine resin fired (black)

Isolation:

voltage input to current input to output to

to power; negatives common to all outputs

Computation

Voltage & current: RMS sensing

Active/reactive power: time division multiplication

Power factor: phase angle detection

Frequency: one-shot

Overrange output: approx. -10 – +120% at 1 – 5V

Front adjustments: zero and span;

±5% independently

adjustable for each measuring item

Overrange output limit: approx. 120%

Remark 1: Both voltage and current loads must be

balanced for measuring power factor.

= reactive power; PF = power factor; Hz = frequency