MODEL: WJPA

WJPA SPECIFICATIONS

ES-2273 Rev.9 Page 1/4

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

Dual Output Plug-in Signal Conditioners W-UNIT

FREQUENCY TRANSMITTER

(field-programmable)

Functions & Features

• Converting the output from a pulse-type transducer into

standard process signal

• Micro-processor based

• Field-programmable frequency range

• Linearization available for flow compensation

• Averaging non-uniform pulses

• Excitation

• Isolation up to 2000 V AC

• Loop testing via hand-held programmer PU-2x

• High-density mounting

Typical Applications

• Positive displacement flowmeters, turbine flowmeters and

vortex flowmeters

• Proximity switches

• Oval flowmeters

50

(1.97)

136

(5.35)

80

(3.15)

mm (inch)

MODEL: WJPA–[1][2][3]–[4][5]

ORDERING INFORMATION

• Code number: WJPA-[1][2][3]-[4][5]

Specify a code from below for each of [1] through [5].

(e.g. WJPA-2AA-B/Q)

• Frequency range (e.g. 0 – 152.3 Hz)

• Special output ranges (For codes Z & 0)

• Linearization data (max. 16 points)

Use Ordering Information Sheet (No. ESU-1673) to specify

linearization data when the I/O signals are non-linear.

• Specify the specification for option code /Q

(e.g. /C01/S01)

Note 1: When the user requires a current and a voltage

output, specify the current to be the Output 1 which allows

a greater load.

Note 2: Consult factory on applications with a sensor

handling periodically (& quickly) changing frequency (e.g.

oval flowmeter).

[1] INPUT

1: Open collector (Excitation: 12 V @ 30 mA)

2: Voltage pulse (Excitation: 12 V @ 30 mA)

3: Mechanical contact (Excitation: 12 V @ 30 mA)

[2] OUTPUT 1

Current

A: 4 – 20 mA DC (Load resistance 600 Ω max.)

B: 2 – 10 mA DC (Load resistance 1200 Ω max.)

C: 1 – 5 mA DC (Load resistance 2400 Ω max.)

D: 0 – 20 mA DC (Load resistance 600 Ω max.)

E: 0 – 16 mA DC (Load resistance 750 Ω max.)

F: 0 – 10 mA DC (Load resistance 1200 Ω max.)

G: 0 – 1 mA DC (Load resistance 12 kΩ max.)

Z: Specify current (See OUTPUT SPECIFICATIONS)

Voltage

1: 0 – 10 mV DC (Load resistance 10 kΩ min.)

2: 0 – 100 mV DC (Load resistance 100 kΩ min.)

3: 0 – 1 V DC (Load resistance 1000 Ω min.)

4: 0 – 10 V DC (Load resistance 10 kΩ min.)

5: 0 – 5 V DC (Load resistance 5000 Ω min.)

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

4W: -10 – +10 V DC (Load resistance 10 kΩ min.)

5W: -5 – +5 V DC (Load resistance 5000 Ω min.)

0: Specify voltage (See OUTPUT SPECIFICATIONS)

[3] OUTPUT 2

Current

A: 4 – 20 mA DC (Load resistance 350 Ω max.)

B: 2 – 10 mA DC (Load resistance 700 Ω max.)

C: 1 – 5 mA DC (Load resistance 1400 Ω max.)

D: 0 – 20 mA DC (Load resistance 350 Ω max.)

E: 0 – 16 mA DC(Load resistance 430 Ω max.)

F: 0 – 10 mA DC (Load resistance 700 Ω max.)

G: 0 – 1 mA DC (Load resistance 7000 Ω max.)

Z: Specify current (See OUTPUT SPECIFICATIONS)

Voltage

Same range availability as Output 1