topworx回讯器说明书(16)

爱默生公司的

D-Series

Master Installation, Operation & Maintenance

502.969.8000

Inductive Sensors: Options V2/V4

P & F NJ3-18GK-S1N

SWITCH 2

PRODUCT SPECIFICATIONS

General specifications

Switching element function NAMUR NO

Rated operating distance

3 mm

Installation Embed in mild steel Output polarity Safety Function Assured operating distance 0 ... 2.44 mm Reduction factor rAl 1 Reduction factor rCu 1 Reduction factor rV2A 0

Nominal ratings

Nominal voltage 8 V Switching frequency Hysteresis

0 ... 200 Hz typ. 0.1%

TORQUE TO

7 IN-LBS

SWITCH 3

SWITCH 4

SWITCH 1

Current consumption

Measuring plate not detected Max 1mA

Measuring plate detected ≥3 mA

Ambient conditions Ambient temperature Connection type Core cross section Housing material Sensing face

Protection degree Note

-25 ... 100 °C

Mechanical specifications

2m Silicone cable 0.75mm Hostalen PPN, black Hostalen PPN, black IP68 Only for non-ferrous metal

General information

Use in the hazardous area see instruction manuals Category 1G; 2G; 3G; 1D

Calibration Procedure

Never perform switch calibration while an area is known to be

hazardous.

For intrinsically safe models, the unit must be wired in accordance with the control drawing ES-00210-1 and ES-00210-1 A.

When installing a Valvetop product with P&F NAMUR sensors, use of a commercially available switch tester like P&F part# ST0-03 is suggested.

Calibration may be performed using a 24Vdc power supply.

For V2 models mounted in parallel orientation (see illustration on page 15)

Step 1: With the valve CLOSED position. Push down and slide the target magnet #1 until SW1 activates. Release the target magnet to lock the position.

Step 2: Rotate the valve to the OPEN position. Push down and slide the target magnet #3 until SW3 activates. Release the target magnet to lock the position.

Step 3: Cycle the valve CLOSED and OPEN several times to ensure proper calibration.

For V4 models mounted in parallel orientation (see illustration on page 15)

Step 1: With the valve CLOSED position. Push down and slide the target magnet #1 until SW1 activates. Release the target magnet to lock the position. Push down and slide the target magnet #3 until SW3 activates. Release the target magnet to lock the position.

Step 2: Rotate the valve to the OPEN position. Push down and slide the target magnet #2 until SW2 activates. Release the target magnet to lock the position. Push down and slide the target magnet #4 until SW4 activates. Release the target magnet to lock the position. Step 3: Cycle the valve CLOSED and OPEN several times to ensure proper calibration

For models mounted in perpendicular orientation, the target disk will have to be rotated to realign the target disk to match the desired orientation. (see illustration on page 15)