KROHNE OPTIWAVE 1400 C Diagrama de cableado

24 GHz Radar (FMCW) Level Transmitter for liquids

in the water and waste water industry

Supplementary Instructions for NEPSI applications

Supplementary Instructions for NEPSI applicationsSupplementary Instructions for NEPSI applications

Supplementary Instructions for NEPSI applications

OPTIWAVE 1400 C

OPTIWAVE 1400 COPTIWAVE 1400 C

OPTIWAVE 1400 C Supplementary Instructions

Supplementary InstructionsSupplementary Instructions

Supplementary Instructions

CONTENTS

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OPTIWAVE 1400 C

1 General safety information 3

1.1 Scope of the document..................................................................................................... 3

1.2 Device description ............................................................................................................ 3

1.3 Standards and approvals.................................................................................................. 3

1.4 Equipment protection levels (EPL)................................................................................... 4

1.4.1 Ex ia-approved devices ........................................................................................................... 4

1.5 Nameplate ........................................................................................................................ 4

2 Installation 5

2.1 Special conditions............................................................................................................. 5

2.2 Precautions....................................................................................................................... 5

2.2.1 General notes.......................................................................................................................... 5

2.2.2 Electrostatic discharge........................................................................................................... 5

2.3 Ambient and process connection temperatures ............................................................. 7

3 Electrical connections 9

3.1 Equipotential bonding system.......................................................................................... 9

3.2 How to connect the electrical cables ............................................................................... 9

3.3 Maximum intrinsically safe values for the electrical circuit ........................................... 9

3.4 Supply voltage .................................................................................................................. 9

4 Start-up 10

5 Service 11

5.1 Periodic maintenance..................................................................................................... 11

5.2 Repairs............................................................................................................................ 11

5.3 Keep the device clean..................................................................................................... 11

5.4 How to remove the device .............................................................................................. 11

5.5 Manufacturer.................................................................................................................. 11

5.6 Returning the device to the manufacturer..................................................................... 12

5.6.1 General information.............................................................................................................. 12

5.6.2 Form (for copying) to accompany a returned device............................................................ 13

6 Notes 14

GENERAL SAFETY INFORMATION

OPTIWAVE 1400 C

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1.1 Scope of the document

These instructions are applicable only to the explosion-protection version of the radar level

transmitter. For all other data, use the Quick Start and Handbook. If you do not have these

documents, please contact the nearest office or download them from the manufacturer's

internet site.

1.2 Device description

The OPTIWAVE 1400 is a 2-wire level transmitter that uses FMCW (Frequency-Modulated

Continuous Wave) radar technology.

The OPTIWAVE 1400 measures level, volume, distance to surface and reflectivity of liquids,

pastes and slurries. It can be installed on tanks, reactors, open channels and open sea.

Measurements are shown in a DTM (device type manager) - a software application for remote

communication.

The level transmitter is approved for use in potentially explosive atmospheres when equipped

with the appropriate options.

1.3 Standards and approvals

You can download the certificate from our internet site.

INFORMATION!

The information in these supplementary instructions only contains the data applicable to

explosion protection. The technical data for the non-Ex version in the Handbook shall be valid in

its current version, provided that it is not rendered invalid or replaced by these supplementary

instructions.

WARNING!

Installation, commissioning and maintenance may only be carried out by "Personnel trained in

explosion protection".

DANGER!

In compliance with Chinese regulations, the NEPSI version of the device described in these

Supplementary Instructions agrees with Chinese National Standards GB 3836.1-2010,

GB 3836.2-2010, GB 3836.4-2010, GB 3836.20-2010, GB 12476.1-2013, GB 12476.4-2010 and

GB 12476.5-2013. The Ex ia-approved version is certified for use in hazardous areas by The

National Supervision and Inspection Centre for Explosion Protection and Safety of

Instrumentation (NEPSI) under GYJ17.1356X.

WARNING!

Carefully read the NEPSI certificate of conformity. Obey the boundary conditions.

GENERAL SAFETY INFORMATION

OPTIWAVE 1400 C

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1.4 Equipment protection levels (EPL)

1.4.1 Ex ia-approved devices

The Ex ia-approved device has the marking that follows for Gas Groups:

•Ex ia IIC T5~T6 Ga/Gb

The Ex ia-approved device is suitable for use in potentially explosive atmospheres of all

flammable substances in Gas Groups IIA, IIB and IIC. It is certified for applications requiring

EPL Ga/Gb. This version agrees with temperature classes T6 thru T1 if the temperature limits

are obeyed. For more data, refer to

Ambient and process connection temperatures

on page 7.

1.5 Nameplate

INFORMATION!

EPL Ga/Gb equipment can be installed in:

•

the boundary wall between zone 0 and zone 1 (the antenna is in zone 0 and the signal

converter is in zone 1),

•

zone 1, or

•

zone 2

Figure 1-1: Nameplate on the signal converter housing for devices that are not made in China

1 Certificate number

2 Type of device protection for explosive gas atmospheres

3 Intrinsically safe circuit data. Refer to 5for the input voltage range.

4 WARNING: Potential electrostatic charging hazard –see instructions

For more data, refer to

Electrostatic discharge

on page 5.

5 Input voltage range and maximum current

6 Type code

INSTALLATION

OPTIWAVE 1400 C

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2.1 Special conditions

This device can be installed on tanks, reactors, open channels and open sea.

2.2 Precautions

2.2.1 General notes

Make sure that:

•you can get access to the device,

•there is sufficient space around the device for inspections,

•you can see the device nameplate, and

•there are no external forces or shocks applied on the device.

2.2.2 Electrostatic discharge

Do not install in a location where the electrostatic charge can increase. For example:

•locations near ventilation systems,

•locations where there is a risk of an increase in electrostatic charge caused by compressed

air and dust,

•locations near machines that use friction,

•locations near systems that apply electrons as a spray (e.g. near electrostatic painting

systems), and

•locations near other machines and systems that can have large electrostatic charges.

WARNING!

When you install the device, obey the conditions in the NEPSI certificate of conformity. These

conditions include:

•

The special conditions for safe use.

You can download the certificate from our internet site.

DANGER!

This installation must agree with Chinese Law and NEPSI regulations. For more data, refer to

the related NEPSI explosion protection certificate of conformity and these Chinese National

Standards:

•

GB 3836.13

GB 3836.13GB 3836.13

GB 3836.13: Electrical apparatus for explosive gas atmospheres

–

Part 13: Repair and

overhaul for apparatus used in explosive gas atmospheres,

•

GB/T 3836.15

GB/T 3836.15GB/T 3836.15

GB/T 3836.15: Electrical apparatus for explosive gas atmospheres

–

Part 15: Electrical

installation in hazardous area (other than mines),

•

GB 3836.16

GB 3836.16GB 3836.16

GB 3836.16: Electrical apparatus for explosive gas atmospheres

–

Part 16: Inspection and

maintenance of electrical installation (other than mines), and

•

GB 50257

GB 50257GB 50257

GB 50257: Code for construction and acceptance of electric device for explosion atmospheres

and fire hazard electrical equipment installation engineering

DANGER!

Risk of electrostatic discharge (ESD) from the Drop antenna.

INSTALLATION

OPTIWAVE 1400 C

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DANGER!

Make sure that the device and adjacent objects do not rub together.

Make sure that all personnel and equipment are correctly grounded.

If dirt collects on the device, clean it with a damp cloth.

ESD warning

Figure 2-1: ESD warning (on the device nameplate)

1 Text: Warning! Potential electrostatic hazard –see instructions

Figure 2-2: Risk of ESD

1 Drop antenna

INSTALLATION

OPTIWAVE 1400 C

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2.3 Ambient and process connection temperatures

The device has more than one applicable temperature class. Refer to the tables that follow to

find the applicable temperature limits of your installation.

The table that follows is applicable in these conditions:

•Device installation must agree with the instructions given in the handbook.

•Make sure that the device temperature does not increase because of other heat sources

(sunlight, adjacent system components etc.). The device must not be operated above the

maximum permitted ambient temperature.

•Do not put insulation around the signal converter. Make sure that the airflow around the

signal converter is sufficient. It is permitted to have insulation on the pipe or stilling well and

the process connection.

WARNING!

An explosive atmosphere is a mixture of air and flammable gases, vapour, mist or dust in

atmospheric conditions. If you do not use the device in these conditions (T

atm

= -20...+60

C and

atm

= 0.8...1.1 barg), do an analysis of the risk of ignition.

atm

= atmospheric temperature and p

atm

= atmospheric pressure.

WARNING!

The gasket temperature must be in the approved limits. For more data, refer to "Pressure and

temperature ranges" in the Installation chapter of the handbook. The type of gasket and gasket

material must agree with the process.

WARNING!

The reference point for the process temperature is the flange facing (flanges) or the thread stop

(threaded connections) of the device. In the table that follows, this reference point will be

referred to as the "process connection temperature".

WARNING!

Make sure that the maximum process connection temperature and maximum ambient

temperature are not more than the values given in the table.

INSTALLATION

OPTIWAVE 1400 C

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Temperature class for

EPLGa/Gb,EPLGborEPLGc

Maximum ambient temperature Maximum process connection

temperature

(max. process temperature)

[°C]

T6 +60 +60

+53 +70

+46 +80

T5 +70 +70

+68 +80

INFORMATION!

The minimum process connection temperature is 0

C and the minimum ambient temperature is

-20

If the OPTIWAVE 1400 is not installed above a tank and the device cannot touch the product, then

the data in the table is not applicable. Use this alternative data for the maximum permitted

ambient temperature (Ta):

•

For temperature class T6: Ta= +60

•

For temperature class T5: Ta= +70

ELECTRICAL CONNECTIONS

OPTIWAVE 1400 C

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3.1 Equipotential bonding system

It is not necessary to connect the device to the equipotential bonding system. The device

electronics are isolated with a rating of 500 V

RMS

3.2 How to connect the electrical cables

The device is supplied with an electrical cable that is 10 metres long. The cross-sectional area of

each wire is 1 mm².

Obey the instructions that follow:

• Electrical wires must agree with applicable standards (for more data, refer to

Precautions

page 5).

• Use the electrical connection procedure in the handbook.

• Put the electrical wires in position and safely attach them to prevent damage. The electrical

wires must also be a sufficient distance from hot surfaces.

• Make sure that unused electrical wires are safely connected to the ground potential of the

hazardous area. If this is not possible, make sure that each of the unused electrical wires are

safely isolated (other electrical wires, ground etc.) and rated for a test voltage ≥500 V

RMS

• If it is necessary, make sure the electrical wire insulation gives good protection from

corrosion.

• Connect only to separate certified, intrinsically safe circuits. Make sure that the electrical

circuit characteristics are not more than the values that follow.

3.3 Maximum intrinsically safe values for the electrical circuit

3.4 Supply voltage

Output Intrinsically safe values for the electrical circuit

[V] [mA] [W] [nF] [µH]

4...20 mA passive –HART ≤30 ≤130 ≤1=12 =6

Current output

terminals

Minimum DC voltage

at output terminals

Maximum DC voltage

at output terminals

[V]

Terminals + / - 12 30

START-UP

OPTIWAVE 1400 C

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• Are the wetted components (gasket, flange and antenna) resistant to corrosion by the tank

product?

• Does the information given on the nameplate agree with the application?

• Are you using intrinsically safe barriers within the correct parameters? For more data, refer to

Maximum intrinsically safe values for the electrical circuit

on page 9. The electrical circuit

characteristics must not be more than the maximum intrinsically safe values.

WARNING!

Make sure that it is safe to supply electrical power. Do a start-up check:

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