MODEL: 18HZ

18HZ SPECIFICATIONS

ES-1870 Rev.6 Page 1/3

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

Rack-mounted DCS Signal Conditioners 18-RACK

FREQUENCY TRANSDUCER

Functions & Features

• Providing two DC output signals in proportion to deviation

(±5 Hz) from center frequency (50 Hz or 60 Hz)

• DC output containing little ripple is ideal for computer

input

Typical Applications

• Centralized monitoring and control of power management

system in manufacturing facility or building

• Measuring frequency for UPS

MODEL: 18HZ–[1][2]66–R

ORDERING INFORMATION

• Code number: 18HZ-[1][2]66-R

Specify a code from below for each of [1] and [2].

(e.g. 18HZ-1166-R)

[1] FREQUENCY

1: 45 – 55 Hz

2: 55 – 65 Hz

3: 45 – 65 Hz

[2] INPUT

1: 110 V AC

2: 220 V AC

OUTPUT 1

Voltage

6: 1 – 5 V DC (Load resistance 5000 Ω min.)

OUTPUT 2

Voltage

6: 1 – 5 V DC (Load resistance 5000 Ω min.)

POWER INPUT

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

Connection

Input: M3.5 screw terminals (torque 0.8 N·m)

Output 1: Connector

Output 2: M3.5 screw terminals (torque 0.8 N·m)

and connector

Power input: Supplied from connector

Screw terminal: Nickel-plated steel

Isolation: Input to output 1 to output 2 to power

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

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

Span adjustment: 95 to 105 % (front)

INPUT SPECIFICATIONS

Operational range: 85 – 120 % of rating

Overload capacity: 150 % of rating for 10 sec., 120 %

continuous

Input burden: Approx. 1 VA

OUTPUT SPECIFICATIONS

3

OUT

5V

1

55

65 Hz

45

■ OPERATION DIAGRAM (example)

INSTALLATION

Current consumption: Approx. 60 mA

Operating temperature: -5 to +55°C (23 to 131°F)

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

Mounting: Standard Rack 18BXx or 18KBXx

Weight: 150 g (0.33 lb)

PERFORMANCE in percentage of span

Accuracy: ±1.0 %

Temp. coefficient: ±0.1 %/°C (±0.06 %/°F)

Response time: ≤ 0.5 sec. (0 – 90 %)

Ripple: 0.5 %p-p max. (100/120 Hz)

Line voltage effect: ±0.1 % over voltage range