SHINKAWA   WKN-142K5  2-WIRE VIBRATION TRANSDUCER



SHINKAWA   WKN-142K5  2-WIRE VIBRATION TRANSDUCER

. CALIBRATION MATERIAL

MODEL WKN-142K 2-wire Vibration Transmitters are calibrated with

JIS SCM440 (AISI 4140 equivalent) flat surface (more than 15 mm

dia.).

It is not calibrated with any other target.

2. CONNECTOR ISOLATION, etc.

The connector connecting the sensor cable and the extension cable

shall be insulated with the attached insulation sleeve (transparent

shrink tube) or fluoro resin insulation tape.

The vinyl-insulating tape shall not be used, which may cause the

wiring trouble in the case of the temperature more than 80 °C.

The connector shall not be located in the oil environment.

The oil penetration to cable through the connector may cause the

sensitivity change, due to the change of the cable capacitance.

3. MEGGER TEST OF SIGNAL CABLE

If megger test is made on the signal cable (2-wire shielded cable), be

sure to discharge the charged electric load before connecting the

cable to transmitter.

If this caution is not adhered the transmitter could be damaged.

4. WIRING BETWEEN GAP OUT TERMINAL AND EQUIPMENT

a). Non-grounding type equipment

Connect directly with coaxial cable within 3 meters long.

b). Grounding type equipment

Use an isolator between the transmitter and the equipment.

Use coaxial cable within 3 meters long between the transmitter

and the isolator.

5. INSTALLATION ENVIRONMENT

Not available for rainwater at out door use and for occurring place of

corrosive gasses.

It may cause the sensitivity change and insulation down.

6. The instructions manual contains important information such as

conditions necessary for safe handling of the system.

Such information and conditions are important and indispensable for

ensuring safety. Therefore, be sure to read the instructions manual

thoroughly before handling the system.

Other

Geothermal specification (Additional Spec. Code: /GEO) is not applicable.

4 to 20 mA

OUTPUT RANGE

0 to 100 μm pk-pk

0 to 125 μm pk-pk

0 to 200 μm pk-pk

0 to 250 μm pk-pk

0 to 400 μm pk-pk

4 to 20 mA OUTPUT

CONVERSION

ACCURACY

±1.5 % of Full Scale Range

(From test signal input pin to current output)

MAX. LOAD

RESISTANCE  43.5 × (Vps-12)  (Vps=Power supply voltage)

NOT-OK FUNCTION Current output : 3.6 mA or less.

Not-OK condition : Open or short of sensor,

Outside of linear range.

Delay time to resume ; 2 to 3 seconds after

Not-OK condition is removed.

GAP Output

(Wave form output)

CALIBRATION

MATERIAL JIS SCM440 FLAT (AISI 4140 equivalent )

LINEAR RANGE* 1.4 mm (Gap : 0.3 to 1.7 mm)

SCALE FACTOR* 7.87 mV/μm

SCALE FACTOR

ERROR*

7.87 mV/μm±10 % typ.

(including interchangeability errors)

Step : 200 μm, Target : 30 mm dia.

OUTPUT

IMPEDANCE* 10 k (It is calibrated at load impedance 10 M)

System

FREQUENCY

RESPONSE* 5 Hz to 6.000 Hz (+0 dB, -3 dB) at 900 μm Gap

TEMPERATURE

RANGE OF

TRANSMITTER

Operating : 0 to 70 °C (32 to 158 °F)

Storage :  -34 to +100 °C (-29 to +212 °F)

TEMPERATURE

RANGE OF SENSOR

AND EXTENSION

CABLE

Operating : -34 to +177 °C (-29 to +350 °F)

(Connector : Max. 125 °C (257 °F))

Storage : -34 to +177 °C (-29 to +350 °F)

(Connector : Max. 125 °C (257 °F))

RANGE OF

TEMPERATURE AT

EXPLOSION PROOF

CONSTRUCTION

CSA,ATEX,IECEx :

0 to +70 C (Sensor, Ext. Cable  Transmitter)

RELATIVE HUMIDITY

RANGE 30 to 95 %RH (non condensing)

POWER SUPPLY

VOLTAGE 12 to 35 VDC

SENSOR TIP

DIAMETER Approx. 5.5 mm (0.217 inch) dia.

CABLE DIAMETER Approx. 2.7 mm (0.106 inch) dia.

CONNECTOR

DIAMETER Approx. 7.1 mm (0.280 inch) dia.

SYSTEM CABLE

LENGTH 9 m

TRANSMITTER SIZE WKN-142K5-□-1

(L) 90 mm × (W) 40 mm × (H) 46.2 mm

(3.54 in)     (1.57 in)    (1.82 in)

WKN-142K5-□-2

(L) 90 mm × (W) 74 mm × (H) 45.2 mm

(3.54 in)     (2.91 in)    (1.78 in)

Mass : Approx. 200 g (0.44 lb)

APPLICABLE WIRE

GAUGE 0.2 to 1.5 mm2  (1.0 mm2 recommended)

*The above specifications apply at 25 °C with 24 VDC power supply and

SCM440 (AISI 4140 equivalent) steel flat target.

WKN-142K5  2-WIRE VIBRATION TRANSDUCER