Bühler technologies NS 1-G1-AM Betriebsanleitung

Fluidcontrol

Installation and Operation Instructions

Original instructions

External level switches

NS 1-G1/2-AM

BE200006

01/2022

Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen

Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20

E-Mail: [email protected]

Internet: www.buehler-technologies.com

Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen

Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20

Internet: www.buehler-technologies.com

E-Mail: [email protected]

Read this instruction carefully prior to installation and/or use. Pay at-

tention particularly to all advises and safety instructions to prevent in-

juries. Bühler Technologies can not be held responsible for misusing

the product or unreliable function due to unauthorised modifications.

Document information

Document No.........................................................BE200006

Version......................................................................... 01/2022

NS 1-G1/2-AM

Contents

1 Introduction..................................................................................................................................................................................................................... 2

1.1 Intended Use.........................................................................................................................................................................................................2

1.2 Functionality......................................................................................................................................................................................................... 2

1.3 Model key............................................................................................................................................................................................................... 2

1.4 Scope of Delivery.................................................................................................................................................................................................. 2

2 Safety instructions......................................................................................................................................................................................................... 3

2.1 Important advice................................................................................................................................................................................................. 3

2.2 General hazard warnings .................................................................................................................................................................................4

3 Transport and storage .................................................................................................................................................................................................. 5

4 Installation and connection ........................................................................................................................................................................................6

4.1 Mechanical installation.....................................................................................................................................................................................6

4.2 Electrical connections ........................................................................................................................................................................................ 7

4.3 Adjusting the level contacts............................................................................................................................................................................. 7

4.4 Information on the correct operation of reed contacts in Bühler level switches.............................................................................9

5 Operation and control ................................................................................................................................................................................................ 10

6 Cleaning and Maintenance........................................................................................................................................................................................ 11

7 Service and repair..........................................................................................................................................................................................................12

8 Disposal............................................................................................................................................................................................................................13

9 Appendices..................................................................................................................................................................................................................... 14

9.1 Technical Data.................................................................................................................................................................................................... 14

9.2 Standard pin assignment ................................................................................................................................................................................15

10 Attached documents................................................................................................................................................................................................... 16

iBühler Technologies GmbHBE200006 ◦ 01/2022

NS 1-G1/2-AM

1 Introduction

1.1 Intended Use

The NS1 level switch series serves liquid level monitoring in tanks in fluid systems. They are installed on the tank and have a

visual display. Up to four switching contacts provide an electronic signal for fill level monitoring.

A medium temperature between -20 °C and 80 °C (-4 °F and 176 °C) must be maintained. The level switch must not be used in

highly flammable or corrosive liquids. The medium must not contain particles, particularly metallic particles, to prevent depos-

its on the float or between the float and switching tube. If necessary, filter the medium.

Please refer to the technical data for the specific intended use and available material combinations.

Please refer to the type plate for your equipment configuration. In addition to the job number, this also contains the item num-

ber and type designation.

WARNING

All device models are solely intended for industrial applications. They are not safety com-

ponents. The devices must not be used if failure or malfunction thereof jeopardises the

safety and health of persons.

Use in explosive areas is prohibited.

Any use outside the technical data and outside the areas of application specified in these instructions is considered improper

use.

1.2 Functionality

The measuring tube is located inside the bypass tank with sight glass. The level switches are located inside the measuring tube.

These are activated by a magnet inside the level switch float.

The level contacts are reed switches. They are mounted to a perforated rail spaced as specified in the purchase order, but can be

moved.

1.3 Model key

NS 1-G1/2-AM-xx-nn-xx-xx

M12

NO/NC

Changeover (max. 2)

280

370

500

nnn

Type designation

Plug connection

Length

1- 4 contacts

Level measurement

Level contacts

Connection

G1/2

Tank top installation

(variable, please specify value)

Ordering example:

You require: Level switch for external installation, G1/2 connections, length L= 370 mm, M3 plug connection

2 level contacts, 1st contact 100 mm NC, 2nd contact 300 mm NO

Order NS 1-G1/2-AM-M3/370-2K L1=100 NC, L2 = 300 NO

1.4 Scope of Delivery

– Level switch

– Product documentation

– Connection/mounting accessories (optional)

2 Bühler Technologies GmbH BE200006 ◦ 01/2022

NS 1-G1/2-AM

2 Safety instructions

2.1 Important advice

Operation of the device is only permitted if:

– the product is used under the conditions described in the installation- and operation instruction, the intended application

according to the type plate and the intended use. In case of unauthorized modifications done by the user Bühler Technolo-

gies GmbH can not be held responsible for any damage,

– when complying with the specifications and markings on the nameplates.

– the performance limits given in the datasheets and in the installation- and operation instruction are obeyed,

– monitoring devices and safety devices are installed properly,

– service and repair is carried out by Bühler Technologies GmbH,

– only original spare parts are used.

This manual is part of the equipment. The manufacturer keeps the right to modify specifications without advanced notice. Keep

this manual for later use.

Signal words for warnings

DANGER

Signal word for an imminent danger with high risk, resulting in severe injuries or death if not avoided.

WARNING

Signal word for a hazardous situation with medium risk, possibly resulting in severe injuries or death if not

avoided.

CAUTION

Signal word for a hazardous situation with low risk, resulting in damaged to the device or the property or

minor or medium injuries if not avoided.

NOTICE

Signal word for important information to the product.

Warning signs

These instructions use the following warning signs:

Warns of a general hazard General notice

Warns of voltage Unplug from mains

Warns not to inhale toxic gasses Wear respiratory equipment

Warns of corrosive liquids Wear a safety mask

Warns of explosive areas Wear gloves

3Bühler Technologies GmbHBE200006 ◦ 01/2022

NS 1-G1/2-AM

2.2 General hazard warnings

The equipment must be installed by a professional familiar with the safety requirements and risks.

Be sure to observe the safety regulations and generally applicable rules of technology relevant for the installation site. Prevent

malfunctions and avoid personal injuries and property damage.

The operator of the system must ensure:

– Safety notices and operating instructions are available and observed,

– The respective national accident prevention regulations are observed,

– The permissible data and operational conditions are maintained,

– Safety guards are used and mandatory maintenance is performed,

– Legal regulations are observed during disposal,

– compliance with national installation regulations.

Maintenance, Repair

Please note during maintenance and repairs:

– Repairs to the unit must be performed by Bühler authorised personnel.

– Only perform conversion-, maintenance or installation work described in these operating and installation instructions.

– Always use genuine spare parts.

– Do not install damaged or defective spare part. If necessary, visually inspect prior to installation to determine any obvious

damage to the spare parts.

Always observe the applicable safety and operating regulations in the respective country of use when performing any type of

maintenance.

The method for cleaning the devices must be adapted to the IP protection class of the devices. Do not use cleaners which could

damage the device materials.

DANGER Toxic, corrosive gases or liquids

Gasses or liquids can be harmful to the health.

a) If necessary, ensure a safe gas/liquid discharge.

b) Always disconnect the gas supply when performing maintenance or repairs.

c) Protect yourself from toxic/corrosive gasses/liquids when performing maintenance.

Wear suitable protective equipment.

DANGER Potentially explosive atmosphere

Explosion hazard if used in hazardous areas.

The device is not suitable for operation in hazardous areas with potentially explosive at-

mospheres.

Do not expose the device to combustible or explosive gas mixtures.

4 Bühler Technologies GmbH BE200006 ◦ 01/2022

NS 1-G1/2-AM

3 Transport and storage

Only transport the product inside the original packaging or a suitable alternative.

The equipment must be protected from moisture and heat when not in use. It must be stored in a covered, dry, dust-free room

at room temperature.

5Bühler Technologies GmbHBE200006 ◦ 01/2022

NS 1-G1/2-AM

4 Installation and connection

4.1 Mechanical installation

CAUTION Oil leak

Damaged sight glass

Ensure the bypass tank, particularly the sight glass, is not damaged by external forces.

NOTICE

The level switch must be mounted vertically to the tank to allow the float to move freely.

The mounting surface on the tank must have a minimum surface quality of Rmax = 6.3. If

the surface quality is inadequate, leaks may occur.

The level switches come fully assembled and can be mounted to the tank with G1/2 hollow screws.

Proceed as follows:

– Install the bypass tank (1) in the planned position:

Ensure the O-rings (4) are correctly seated in the grooves on the bypass tank.

– Insert the two G1/2 hollow screws (2) all the way through the respective G3/4 opening and firmly secure to the tank.

– The screw the two VSTI plugs (3) firmly into the G3/4 threads on the tank.

1 Bypass tank 2 G1/2 hollow screws

3 VSTI plugs 4 O-rings

5 Mounting surface (note surface quality) 6 Hexagon nut SW36

7 Spanner size SW12 8 Magnet

9 Float

6 Bühler Technologies GmbH BE200006 ◦ 01/2022

NS 1-G1/2-AM

CAUTION Oil leak

Removing the level switch

When removing the level switch, ensure there is no fluid left in the tank or could leak

from the tank.

Note: After removing the float, be sure the magnet inside the float is above the fluid level. This can easily be verified with a piece

of iron to determine the magnet position inside the float.

4.2 Electrical connections

For devices with 230 V mains voltage:

DANGER Electrical voltage

Electrocution hazard.

a) Disconnect the device from power supply.

b) Make sure that the equipment cannot be reconnected to mains unintentionally.

c) The device must be opened by trained staff only.

d) Regard correct mains voltage.

The connection voltage is 24VDC or 230VAC (rated values). It connects with plugs. Please refer to the drawing in the appendix

for the pin assignment.

Depending on the order specifications, the level contacts are "falling NO contact (NC)", "falling NC contact (NO)" (contact type K8)

or changeover contacts (contact type W9) and mounted in the specified position. The position can be changed later (see chapter

Adjusting the level contacts [> page7]). The contact logic assumes the level switch is installed with the tank empty, meaning

it is only in the operating position once the tank has been filled.

4.3 Adjusting the level contacts

The contacts for level measurement are locked into a bent rail inside the protective tube. They are positioned as specified in the

purchase order, but can be moved to any position if necessary.

For devices with 230 V mains voltage:

DANGER Electrical voltage

Electrocution hazard.

a) Disconnect the device from power supply.

b) Make sure that the equipment cannot be reconnected to mains unintentionally.

c) The device must be opened by trained staff only.

d) Regard correct mains voltage.

– Disconnect the voltage supply.

– Disconnect the plug.

– Unscrew the plug base. For plug-in connectors with screw-in plug base, unscrew the top hexagon ring and pull the complete

pin insert up until the bottom of the base can be unscrewed freely.

– Carefully pull the bent rail with contacts out the top.

NOTICE

The earth wire is a loop and soldered to the protective tube from the inside in the inser-

tion direction. To prevent breaking off the earth wire it should not be pulled all the way

out.

– Mark the original contact position.

NOTICE

Never attempt to remove the contacts from the front of the bent rail, as this will damage

the glass body. Do not pull on the cables.

7Bühler Technologies GmbHBE200006 ◦ 01/2022

NS 1-G1/2-AM

– Carefully slide the contacts to the desired position on the bent rail. Use a small screwdriver or similar tool to do so. Use a drop

of oil if the contacts are very tight. Please note the minimum spacing!

If the contacts are configured as NO contact (NO) or NC contact (NC), the contact function can be reversed by turning the con-

tacts 180°. There is a red mark on the housing indicating the "NO contact" function. The contact logic assumes the level switch is

installed in an empty tank, i.e. it is only in the operating position once filled.

NO contact function

with rising level (NO)

NC contact function

with rising level (NC)

Red marking down

Red marking up

– To reverse the switching function, slide the contact out the top or bottom of the bent rail, turn 180° and slide back in, and

slide into the desired position.

– If the earth wire was pulled out of the protective tube, first insert this wire into the protective tube.

– Make a loop of the additional cable length and carefully slide the bent rail back in.

– Screw on the plug base. For plugs with screw-in thread, attach the plug base clean and screw in hand tight. Leave the pin in-

sert free so the base can turn around the cables. Now slide the cables all the way in, lock the pin insert into the guide and

slide all the way in. Tighten the top hexagon ring hand tight.

8 Bühler Technologies GmbH BE200006 ◦ 01/2022

Andere Handbücher für NS 1-G1-AM

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

Andere Bühler technologies Schalten Handbücher

Bühler technologies

Bühler technologies Nivotemp NT 61 Referenzhandbuch

Bühler technologies

Bühler technologies TSA-25-Atex Betriebsanleitung

Bühler technologies

Bühler technologies MDS Series Referenzhandbuch

Bühler technologies

Bühler technologies NS xx-AM Series Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT MD Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT 61 Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT MD Referenzhandbuch

Bühler technologies

Bühler technologies Nivotemp NT-M Series Betriebsanleitung

Bühler technologies

Bühler technologies NT Mx-Atex Series Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT-M Series Bedienungsanleitung

Bühler technologies

Bühler technologies NS 1-G1-AM Referenzhandbuch

Bühler technologies

Bühler technologies MDS Series Bedienungsanleitung

Bühler technologies

Bühler technologies NS 1-G1/2-AM Betriebsanleitung

Bühler technologies

Bühler technologies Nivotemp 61-0-WW Referenzhandbuch

Bühler technologies

Bühler technologies Nivotemp 61-0-WW Betriebsanleitung

Bühler technologies

Bühler technologies Nivotemp NT-EL Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT M-L Referenzhandbuch

Bühler technologies

Bühler technologies Nivotemp NT-ELD Bedienungsanleitung

Bühler technologies

Bühler technologies IO-Link NS AM Series Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT 64 Referenzhandbuch

Bühler technologies

Bühler technologies Nivotemp 61-0-WW-S6 Bedienungsanleitung

Bühler technologies

Bühler technologies Nivotemp NT M-XP Series Betriebsanleitung

Beliebte Schalten Handbücher anderer Marken

URC

URC Total Control MFS-8 Bedienungsanleitung

Azbil

Azbil HPQ-D11 Bedienungsanleitung

Sony

Sony DFS-900M Bedienungsanleitung

SICK

SICK i17S Bedienungsanleitung

F&F

F&F SZR-277 Bedienungsanleitung

Shure

Shure UAMS/BK Bedienungsanleitung

Dräger

Dräger X-zone Switch Off Bedienungsanleitung

Asco

Asco Joucomatic 349 Series Bedienungsanleitung

BT Mini Hub Bedienungsanleitung

D-Link

D-Link DES-1226G Bedienungsanleitung

Johnson Controls

Johnson Controls FS80-C Bedienungsanleitung

Alcatel-Lucent

Alcatel-Lucent 7450 ESS-12 Bedienungsanleitung

MicroNet

MicroNet SP1200A Bedienungsanleitung

Ruijie

Ruijie RG-PF2920 Series Installations- und Betriebsanleitung

Altinex

Altinex DA1914SX Bedienungsanleitung

MiLAN

MiLAN MIL-SM2401M Bedienungsanleitung

RJM

RJM MASTERMIND PBC/6X Bedienungsanleitung

Atlas

Atlas MMK-KVM8 Bedienungsanleitung