Windbell KYDM-F Magnetostrictive Liquid Level Sensors Installation Manual

KYDM-F Series

Magnetostrictive Liquid-Level Sensors

ModBus

Installation Manual

1

Catalogue

INTRODUCTION ...................................................................................... 1

FEATURES ................................................................................................. 1

SPECIFICATIONS ..................................................................................... 1

INSTALLATION ........................................................................................ 2

1. Notices Before Installation ............................................................... 2

2. Structure Dimension ......................................................................... 3

3. Mounting Method ............................................................................. 6

4. Accessory Figure ............................................................................... 9

CONNECTION & ADJUSTMENT METHOD ......................................... 8

1. Wiring Guide ..................................................................................... 8

2. Adjustment ........................................................................................ 9

错误 ！ 未定义书签 。

Q & A ........................................................................................................ 10

COMMUNICATION PROTOCOL .......................................................... 10

2

INTRODUCTION

The magnetostrictive liquid level sensors are based on the magnetostrictive measurement principle. The liquid level sensors satisfy the demand for a digital communication interface that offers the liquid level market unsurpassed flexibility to meet most process application conditions. The Magnetostrictive liquid level sensors provide 3-in-1 measurement for liquid level, interface level and temperature measurements.

And there is no scheduled maintenance or recalibration needed once the sensor is installed and calibrated.

The output of Magnetostrictive liquid level sensors is through ModBus, which is communicated via a 4 wire multi-drop power and data bus (EIA485). Utilizing the Bus network eliminates the requirements for individual cable runs from each tank and this data format provides a direct interface to most types of computers and digital communication equipment.

Temperature measurement Point Mounting Position (except customized order)

1

FEATURES

Non-contact sensing technology

High accuracy, stability and reliability

Linear, absolute measurement

Good capability on anti-interference

1 to 3 levels, 1 to 5 temperatures measurement

SPECIFICATIONS

Parameter type

Range

Output signal

Accuracy

Working conditions

House material

Parameter

4000~20000mm

(customized ranges available)

Temperature: 1 to 5

ModBus RTU

System Resolution <4µm

Non-Linearity <±0.05%F.S. or ±80µm

Resolution < 4µm

Repeatability <±0.002%F.S. or ±2.5µm min.

Temperature coefficient <0.007%F.S./ ° C

Hysteresis < 4µm

Zero adjustment 100%F.S.

Temperature Accuracy ±0.5° C

Working temperature -40° C ~+85° C

Shock rating 100g, Single hit

Vibration rating 15g/100~2000Hz

EMC

Sensor head Aluminum / 304SS

Rod 304SS/316SS /perfluoroethylene-propylene (PTFE)

Tube Pressure depend on the float chose

Electrical connection Connection type Integral cable / Connecter (PLT-167P+R)

Input voltage +24VDC ± 10%

Current drain <40mA

Cable

Mode

Connection

Electric strength 500V (DC ground to machine ground)

Storage Temperature -40° C ~ +100° C

Electronic

Structure

Head Type A Electronic Head,

Type B Electronic Head

Direct Cable Connection,

Connection Port Cable Connection (Side outlet),

Mounting Interface

Safety Approval

Sealing

Aviation Plug Cable Connection

Threaded Flange Connecting or special order

ExdIIBT5 / ExiaIIBT5

IP65 ( IP67、IP68 if needed )

2

Ordering Information:

For example: KYDM-FG1M910W-GB01000M1J13-W100

Notes: 1. Pls. specify product model number for correct order.

2. Just for level transducer.

3

INSTALLATION

1. Notices Before Installation

It is strongly recommended reading this user manual and following the installation guidelines before installing sensor:

Ensure the sensor mounting is kept away from noise of strong magnetic and electrical fields.

The sensor can be operated in any position. Normally, the sensor is installed on the stationary part, while the float is mounted on the moving machine part. Ensure the moving direction of float is along the tube of sensor.

Keep the minimum clearance between the float and the flange. Use non-magnetic screws to fix float onto the moving machine part. Sensor with over 1000 mm measuring stroke may require mechanical supports. Refer to the figures below.

To avoid scratching the sensor tube by the moving float, the float and the sensor tube should be carefully mounted in parallel.

The maximum pressure inside of the sensor tube permitted is 340bar.

The bore size in the piston rod and type of sealing depend on the cylinder structure with respect to different hydraulic pressure and piston velocity. The Min.13 mm bore diameter and O-rings or copper gaskets are recommended for sealing.

2. Structure Dimension

4

3. Probe Installation diagram

5

Floater material: Polytef

Installation method

float name lock ring

Parts list quantity

1

1 hex socket screws 1 hex socket screwdriver 1

“一”shape screwdriver 1

plummet 1 name

Installation accessories list quantity connector

FK-4

1 taper sleeve 1 gland nut 1

O ring 1

Note： The amount of float is according to product selection

Before the order, the user should measure or calculate the installation height (the height of the mounting flange to the tank bottom) ; Allowed measurement error is within ±200 mm

Installation instructions: a) Put the probe straight ： put the probe on the tank roof and keep it straight ; b) Assembly: put the locking nut, adjusting nut, sealing rubber ring, flange, liquid level float, surface float, the plummet on the soft cable of the probe in turn, and fix the end at last. c) Degaussing (very important): Before put the probe into the tank need to demagnetize for it, move the oil float from the bottom of the flexible cable to the top and then again to the bottom d) Lifting: lift the probe plummet and the float , put the probe into the tank slowly e) Flange installation: fix the flange and install the jumper copper f) Length adjusting: make the plummet contact the tank bottom, put the rubber ring into the groove of the mounting flange and locked it with the locking nut g) Install the protective cover. h) Explosion-proof wiring: connect the explosion protection box, the galvanized pipe, the shields and flexible pipe firmly, use tape winding the cable to ensure insulation, use explosion-proof mud to block the outlet of the explosion-proof junction box, seal the junction box with butter and tighten the screws.

Probe in the two kinds of oil tank

6

4. Accessory Figure

A. Float

NO.1 NO.2 NO.3 NO.4 NO.5

7

Material：

Density:

Max pressure:

Min dead zone:

NO.6

Material：

Density:

Max pressure:

Min dead zone:

NO.7

Material：

Density:

Max pressure:

Min dead zone:

NO.G

Material：

Density:

Max pressure:

Min dead zone:

NO.H

Material：

Density:

Max pressure:

Min dead zone:

NO.I

Material：

Density:

Max pressure:

Min dead zone:

NO.J

Material：

Density:

Max pressure:

Min dead zone:

NO.K

Material：

Density:

Max pressure:

Min dead zone:

NO.L

Material：

Density:

Max pressure:

Min dead zone:

NO.M

Material：

Density:

Max pressure:

Min dead zone:

Application:for oil-water interface-

NO.N

Material： covered

with anticorrosive mate-

rial.

Density:

Max pressure:

Min dead zone:

Application:for strong corrosive environment

Material： covered

with anticorrosive mate-

rial.

Density:

Max pressure:

Min dead zone:

Application:for strong corrosive environment

Material： covered

with anticorrosive mate-

rial.

Density:

Max pressure:

Min dead zone:

Application:for strong corrosive environment

Material： covered

with anticorrosive mate-

rial.

Density:

Max pressure:

Min dead zone:

Application:for strong corrosive environment

Material： covered

with anticorrosive mate-

rial.

Density:

Max pressure:

Min dead zone:

Application:for strong corrosive environment

Figure 5

B. Kit

Transducer bracker Locknut Housing nut

8

Material Aluminum

AWG

NO.1

NO.2

NO.3

Taper bush

Material SS

AWG

NO.1

NO.2

NO.3

Union joint

Material SS

NO.1

AWG

NO.2

Turnbuckle

Material Copper

NO.1

AWG

NO.2

Material SS

NO.1

AWG

NO.2

Figure 6

CONNECTION & ADJUSTMENT METHOD

Material SS

AWG

NO.1

NO.2

NO.3

1. Wiring Guide

Recommend to read the operation manual of Interface Card or Display Controller (PLC) in detail before connecting the system.

CAUTION: Device must be power off before wiring.

ATTENTION：

1. It is recommended that each sensor should be supplied by single power (at least 150mA loading current) that complies with the requirements of the product.

2. Avoid running the sensor shield cable near high voltage power cables (e.g. drive cables), RF signal source, any capacitive or inductive noise source such as motors, relays and switching devices or other noise transmission cables.

3. Shield cables must remain integrity all the time, and connect with the Ground of follow-up equipment.

Table 1.

Wire Color

Red

Black

White/Orange

Blue

Direct cable to communication controller en r

S

-F

DM

KY

Red

24VDC

Black

GND

White or orange A

Blue B

KYDM controller

PLC

PC

Function

+24VDC

GND

Signal A

Signal B

SHIELD en r

S

-F

DM

KY

Direct cable to computer/PC

Red

24VDC

Black

GND

White or orange A

Blue B

Rx+

Rs485 to Rs232

Rx-

24VDC

PC

Connection port wiring

+24VDC/

+15VDC

1 2 3 4 5

GND

Signal wire A

Shield

Signal wire B

Aviation plug wiring

+24VDC

GND

2

1

7

6

5

3 4

Signal wire A

N.C.

Shield

Signal wire B

N.C.

Figure 3

2. Adjustment

Adjustment is necessary before sensor gets to work. The connection and adjustment methods are different due to variant output receiver devices customer supplied. Carefully reading the followings before adjustment:

1. Confirm that the DC voltage provided is the same as the required working voltage of the sensor before turning on;

2. Make sure correct wiring ;

3. During adjustment, ensure power off all devices in dangerous area.

Recommend to read the operation manual of Interface Card or Display Controller in detail before adjusting, to ensure complying with the sensor output mode.

9

Q & A

Symptom

Unstable output

Possible Cause

Mismatched system components

Ground loops/improper grounding

Incorrect receiver device or software

Improper power supply/power connection

Action

Change to the latest components

Route ground again reference grounding

Confirm and change device or update the software to the latest version

Check and change power

Improper wiring

Improper magnet mounting

EMI noise, affecting sensor or sensor cable

Refer to wiring guide

Refer to assembling method

Confirm and keep away from the EMI sources

No communication with sensor

Missing magnet error

Circuit fault within sensor

No power

Wiring incorrect

Float is not recognized

Float is in the dead zone

Wrong number of floats selected

Return for repairing

Check voltage at sensor

Refer to wiring guide

Confirm that the float is attached

Raise float to see if the error stops

Confirm that the number of floats on the sensor and the number of floats the sensor is attempting to verify are the same.

Service: a. Detailed product information can be downloaded from our website. Our skilled technicians and engineers can provide support if necessary. b. We warrant title to the product sold hereunder and that within 1 year from delivery which conforms to the specifications and is free from defects in quality.

10

COMMUNICATION PROTOCOL

1. Transmission mode: ModBus RTU mode

Communication parameters: 9600bps (4800bps, 19200bps are options) 1, 8, E, 1

2. The following ModBus function codes are supported:

Function 03 - Read Holding Register

Function 06 - Preset Single Register

Function 08 - Diagnostics

Function 03 (Read Holding Register): Data Measurement

Parameter

Description

Position 3

Position 2

Position 1

Temperature 1

Temperature 2

Data Address

(16bit)

0000, 0001

0002, 0003

0004, 0005

0006

0007

Parameter

Description

Span

Zero

Velocity

Number of Tem.

Status

Data Address

(16bit)

000f, 0010

0011, 0012

0013, 0014

0015

0016

Temperature 3

Temperature 4

Temperature 5

Temperature 6

0008

0009

000a

000b

Zero migration 0017, 0018

Position1 High Alarm 0019, 001a

Position1 Low Alarm 001b, 001c

Position2 High Alarm 001d, 001e

Temperature 7

Temperature 8

000c

000d

Position2 Low Alarm 001f, 0020

Position3 High Alarm 0021, 0022

Address 000e Position3 Low Alarm 0023, 0024 e.g. Read Position 1 Data of Address 1 Sensor:

Master device Queries Slave device responds

01H

03H

Address

Function Code

Slave Address

Function

01H

03H

Address Slave Address

Function

Starting Address

Hi

Starting Address

Lo

No. of Points Hi

No. of Points Lo

Error

Check(CRC)

00H

04H

00H

02H

First address

Length

2 Words

85CAH Error Check

Byte Count

Data Hi

Data Lo

Data Hi

Data Lo

04H

09H

C4H

99H

00H

4 Bytes

Position 1 value data

Error

Check(CRC)

D202H

Error

Check

Function 06 (Single Register): Write Register Data

Parameter Description

Modify address

Data Address (16bit)

0020

Set positive/reverse

Reset Factory

Set Zero migration

Position1 High Alarm

002c

002e

0034, 0035, 0036

003c, 003d, 003e

Position2 High Alarm

Position3 High Alarm

Position1 Low Alarm

Position2 Low Alarm

Position3 Low Alarm

003f, 0040, 0041

0042, 0043, 0044

0045, 0046, 0047

0048, 0049, 004a

004b, 004c, 004d

Data

DATA

00(Reverse), FF(Positive)

FF (Must be FFH)

DATA

DATA

DATA

DATA

DATA

DATA

DATA

11

e.g. Set address 1 Sensor to reverse mode:

Master device Queries

Slave Address 01H

Function 06H

Register Address Hi 00H

Register Address Lo 2cH

Preset Data Hi

Preset Data Lo

Error Check(CRC)

00H

00H

4803H

Slave device responds

Slave Address 01H

Function 06H

Register Address Hi

Register Address Lo

Preset Data Hi

Preset Data Lo

Error Check(CRC)

00H

2cH

00H

00H

4803H

Function 08 (Diagnostics): Diagnostics

Function Code

08

Sub-function Code

0000

08

08

0004

0001

Function

Return Query Data

Freeze

Unfreeze e.g. Diagnose if Address 1 Sensor is communicating normal:

Master device Queries

Slave address 01H

Function 08H

Slave device responds

Slave address 01H

Function 08H

Sub-function Hi

Sub-function Lo

Query data Hi

Query data Lo

Error check (CRC)

00H

00H

12H

34H

ED7CH

Sub-function Hi

Sub-function Lo

Query data Hi

Query data Lo

Error check (CRC)

00H

00H

12H

34H

ED7CH

12