MODEL: MERP

MERP SPECIFICATIONS

ES-1922 Rev.1 Page 2/4

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

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

TERMINAL SCREW MATERIAL

/S01: Stainless steel

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Isolation: Voltage input to current input to output 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

Frequency: 50 or 60 Hz

• Current Input

Operational range: 0 – 120 % of rating

Overload capacity: 1000 % of rating for 3 sec., 200 % for 10

sec., 120% continuous

• Voltage Input

Operational range: 0 – 120 % of rating

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

continuous

■ Input Range

How To Determine Var Range:

Calibration Range [var] = Measuring Range ÷ ((VT Ratio) ×

(CT Ratio))

Check that the required calibration range is within the

available range in the table. Specify this range when

ordering.

[example]

3-phase / 3-wire, measuring range 75 kvar, VT 220 / 110 V,

CT 250 / 5 A

• 3-phase / 3-wire

INPUT

AVAILABLE

BURDEN (VA)

STD.RANGE

RANGE

VOLT.

CURR.

110V/1A

200 var

100 – 240 var

0.2

110V/5A 1000 var

500 – 1200 var

/phase

220V/1A

400 var

200 – 480 var

0.4

220V/5A 2000 var

1000 – 2400 var

/phase

0.1/phase

0.5/phase

0.1/phase

0.5/phase

OUTPUT SPECIFICATIONS

■ DC Current: 0 – 20 mA DC and ± 1 mA

Minimum span: 1 mA

Offset: Max. 1.5 times span

Load resistance: Output drive 12 V maximum; 10 V for [±]

output

■ DC Voltage: -10 – +12 V DC

Minimum span: 5 mV

Offset: Max. 1.5 times span

Load resistance: Output drive 1 mA max. at ≥ 0.5 V

12

OUT

20mA

0

1000var

(Lead)

1000

(Lag)

0

OUT

+10V

4

12

OUT

20mA

0

OUT

+10V

4

-10V

-10V

0

1000var

(Lead)

1000

(Lag)

0

1000var

(Lead)

1000

(Lag)

0

1000var

(Lead)

1000

(Lag)

• Negative in lag, positive in lead

• Negative in lead, positive in lag

OPERATION DIAGRAM (example)

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 (18 mA at 110 V)

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

Operating humidity: 30 to 85 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 400 g (0.88 lb)