MODEL: MEPF

MEPF SPECIFICATIONS

ES-1923 Rev.7 Page 2/4

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

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

Note: A device which employs different measuring methods

may show different outputs from that of M-System's.

Frequency: 50 or 60 Hz

• Current Input

Input burden: 0.1 VA (input 1 A)

0.5 VA (input 5 A)

Operational range: 10 – 120 % of rating

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

for 10 sec., 120 % continuous

• Voltage Input

Input burden: Approx. 0.5 VA

Operational range: 85 – 120 % of rating

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

continuous

■ Input range:

Lag 0.5 – 1 – lead 0.5

Lead 0.5 – 1 – lag 0.5

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

1

0.5

(Lead)

0.5

(Lag)

0

OUT

+10V

4

12

OUT

20mA

0

OUT

+10V

4

-10V

-10V

1

0.5

(Lead)

0.5

(Lag)

1

0.5

(Lead)

0.5

(Lag)

1

0.5

(Lead)

0.5

(Lag)

■ OPERATION DIAGRAM (example)

• Negative in lag, positive in lead

• Negative in lead, positive in lag

Note: When there is no input voltage or 5% or less of rated

input current , the output may become unstable (hunting).

INSTALLATION

Power input

•AC: Operational voltage range: rating -15/+10 %,

50/60 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 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 400 g (0.88 lb)

PERFORMANCE in percentage of span

Accuracy:

±2 % with input 1 – 0.866, balanced load

±4 % with input 0.866 – 0.5, balanced load

Temp. coefficient: ±0.4 %/°C (±0.22 %/°F)

Response time: ≤ 1 sec. (0 – 90 %)

Ripple: 0.5 %p-p max. (50/60 Hz)

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @ 1 minute

(voltage input to current input to output to power to ground)