MODEL: FNDS

FNDS SPECIFICATIONS

ES-3208 Rev.3 Page 1/3

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

Plug-in Signal Conditioners M-UNIT

CURRENT LOOP SUPPLY

(with square root extractor; isolated)

Functions & Features

• Powering a 4 – 20 mA DC current loop

• Square root extraction

• Shortcircuit protection

• Applicable to smart transmitters

• Isolation up to 2000 V AC

• LCD meter (engineering unit display selectable)

• Simple loop test output (0 % and 100 %)

• High-density mounting

Typical Applications

• Various 2-wire transmitters

• Square root extractor application (4 – 20 mA input)

50

(1.97)

127

(5)

80

(3.15)

mm (inch)

MODEL: FNDS–[1][2]

ORDERING INFORMATION

•Code number: FNDS-[1][2]

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

(e.g. FNDS-B/E2/Q)

• Specify the specification for option code /Q

(e.g. /C01/S01)

INPUT

Current

4 – 20 mA DC (Input resistance 250 Ω)

OUTPUT

Voltage

1 – 5 V DC (Load resistance 500 Ω min.)

[1] POWER INPUT

AC Power

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

DC Power

S: 12 V DC

R: 24 V DC

V: 48 V DC

P: 110 V DC (Not selectable with Option /E2.)

[2] OPTIONS (multiple selections)

LCD Meter (after function or low-end cutout)

blank: Without

/E: LCD meter (0.0 – 100.0 %)

/E2: With LCD display in engineering unit

with backlight and the simple loop test output

Other Options

blank: none

/Q: Option other than the above (specify the specification)

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: Input to output to power

Overrange output: 0 – 105 % at 1 – 5 V

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

Span adjustment: 95 to 105 % (front)

Low-end cutout: Approx. 5 – 8 % (output)

Simple loop test output: 0 % and 100 % signal simulated by

selecting the front switch positions. (Only for option code

/E2)

■ DISPLAY (LCD meter)

• Option code: /E

LCD digital display: 0.0 - 100.0 % (min. digit 0.1 %)

(No scaling)

• Option code: /E2

LCD digital display: Engineering unit

Display scaling: -10000 – +10000

Engineering unit: %, μV, mV, V, mA, A, °C, °F, Ω, DEG K,