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APTA-542-D

更新时间：2025-07-12 22:49:05

品牌：MSYSTEM

描述：Limit Alarms (potentiometer adj.) A-UNIT

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APTA-542-D 概述

Limit Alarms (potentiometer adj.) A-UNIT

APTA-542-D 数据手册

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MODEL: APTA

Limit Alarms (potentiometer adj.) A-UNIT

[3] SETPOINT 2 OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

3: Lo (coil energized at alarm)

4: Lo (coil de-energized at alarm)

PT ALARM

(Average sensing, RMS calibrated)

Functions & Features

• Providing SPDT relay outputs at preset AC voltage levels

from a VT

[4] POWER INPUT

AC Power

• Average sensing

• Dual (Hi/Lo) trip

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

• Energized or de-energized coil at a tripped condition

selectable

• Deadband (hysteresis) adjustable

• Enclosed relays

• Relays can be powered 110 V DC

• High-density mounting

DC Power

Typical Applications

• Annunciator

S: 12 V DC

R: 24 V DC

• Various alarm applications

V: 48 V DC

P: 110 V DC

(1.97)

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals

(3.15)

Housing material: Flame-resistant resin (black)

Isolation: Input to output 1 to output 2 to power

Input waveform: Sine wave

132

(5.20)

Zero adjustment: -5 to +5 % (front)

Span adjustment: 95 to 105 % (front)

Setpoint adjustments: 270°-turn screwdriver adjustments

(front); 0 – 100 % independently

mm (inch)

Hysteresis (deadband) adjustments: 1 – 100 % (front)

Front LEDs: LED turns on at a tripped condition; red for

output 1, green for output 2

MODEL: APTA-[1]1[2][3]-[4]

ORDERING INFORMATION

• Code number: APTA-[1]1[2][3]-[4]

Specify a code from below for each of [1] through [4].

(e.g. APTA-1111-B)

Power ON timer: Relays de-energized for approx. 2 seconds

after power is turned on.

INPUT SPECIFICATIONS

Frequency: 50 or 60 Hz

[1] INPUT

Voltage

Input burden: 0.5 VA max.

Overload capacity: 200 % of rating for 1 minute, 120 %

continuous

1: 0 – 110 V AC

2: 0 – 220 V AC

5: 0 – 150 V AC

6: 0 - 300 V AC

Operational range: 0 – 100 % of rating

[2] SETPOINT 1 OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

3: Lo (coil energized at alarm)

4: Lo (coil de-energized at alarm)

APTA SPECIFICATIONS

ES-2138 Rev.7 Page 1/4

http://www.m-system.co.jp/

MODEL: APTA

OUTPUT SPECIFICATIONS

■ Relay Contact: 100 V AC @ 1 A (cos ø = 1)

120 V AC @ 1 A (cos ø = 1)

240 V AC @ 0.5 A (cos ø = 1)

30 V DC @ 1 A (resistive load)

Maximum switching voltage: 380 V AC or 125 V DC

Maximum switching power: 120 VA or 30 W

Minimum load: 5 V DC @ 10 mA

Mechanical life: 5 x 10 cycles

For maximum relay life with inductive loads, external

protection is recommended.

Alarm Trip Operation Terminal No. in parentheses

(9-11)ON

Output 1

(9-10)ON

(1-3)ON

Output 2

(1-2)ON

Input

(%)

▲

100

Output 2

Setpoint

Output 1

Setpoint

Trip Operation in Power Failure

• Output Code: 1 & 4: Terminals 1 – 2, 9 – 10 turn ON

• Output Code: 2 & 3: Terminals 1 – 3, 9 – 11 turn ON

INSTALLATION

Power input

• AC: Operational voltage range: rating ±10 %,

50/60 ±2 Hz, approx. 2 VA

• DC: Operational voltage range: rating ±10 %, or 85 – 150

V for 110 V rating (ripple 10 % p-p max.)

approx. 2 W (80 mA at 24 V)

Operating temperature: -5 to +60°C (23 to 140°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 450 g (0.99 lb)

PERFORMANCE in percentage of span

Trip point repeatability: ±0.5 %

Temp. coefficient: ±0.05 %/°C (±0.03 %/°F)

Response time: ≤ 0.7 sec. (0 – 100 % at 90 % setpoint)

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @1 minute (input to output 1

to output 2 to power to ground)

APTA SPECIFICATIONS

ES-2138 Rev.7 Page 2/4

http://www.m-system.co.jp/

MODEL: APTA

EXTERNAL VIEW

No.1 Setpoint Adj.

No.1 LED

Span Adj.

Zero Adj.

No.1 Deadband (Hysteresis) Adj.

No.2 Deadband (Hysteresis) Adj.

No.2 LED

No.2 Setpoint Adj.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

CLAMP

(top & bottom)

7.8 (.31)

DIN RAIL

35mm wide

–4.5 (.18) dia.

MTG HOLE

25 (.98) deep

10 11

–M3.5

SCREW

50 (1.97)

103 (4.06)

132 (5.20)

40 (1.57)

50 (1.97)

[3.3 (.13)]

• When mounting, no extra space is needed between units.

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

HYSTERESIS

SETPOINT (DEADBAND)

INPUT

TRANS-

FORMER

SOURCE

FUSE

Resistance

Divider

Average

Operation

Comparator

SETPOINT 1

OUTPUT

Low Drift

Amplifier

LOAD

Comparator

SETPOINT 2

OUTPUT

SETPOINT

HYSTERESIS

(DEADBAND)

U(+)

V(–)

POWER

Base Socket

*Relay status for output codes “1” & “4”, at power OFF.

■ Relay Protection

• AC Powered

• DC Powered

Inductive

Load (Coil)

Inductive

Load (Coil)

Diode, Varistor or

CR Circuit

Varistor or Spark

Quenching Circuit

LOAD

APTA SPECIFICATIONS

ES-2138 Rev.7 Page 3/4

http://www.m-system.co.jp/

MODEL: APTA

Specifications are subject to change without notice.

APTA SPECIFICATIONS

ES-2138 Rev.7 Page 4/4

http://www.m-system.co.jp/

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