Buhler SM-6 User manual
Analysentechnik
Installation and Operation Instructions
Original instructions
Flow Meter
SM-6, SM-6-V, S-SM 3-1
BE400001
11/2016
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.
All rights reserved. Bühler Technologies GmbH 2017
Document information
Document No......................................................... BE400001
Version...........................................................................11/2016
SM-6, SM-6-V, S-
SM 3-1
Contents
1 Introduction..................................................................................................................................................................................................................... 2
1.1 Intended use .........................................................................................................................................................................................................2
1.2 Contents................................................................................................................................................................................................................. 2
1.3 Ordering instructions ........................................................................................................................................................................................ 3
2 Safety instructions.........................................................................................................................................................................................................4
2.1 Important advice .................................................................................................................................................................................................4
2.2 General hazard warnings .................................................................................................................................................................................4
3 Transport and storage ..................................................................................................................................................................................................6
4 Installation and connection ........................................................................................................................................................................................ 7
4.1 Mounting a flow sensor with brackets (type SM-6 / SM-6-V only)....................................................................................................... 7
5 Operation and control ..................................................................................................................................................................................................8
5.1 Read the flow value ............................................................................................................................................................................................8
5.2 Adjusting the needle valve ...............................................................................................................................................................................8
6 Maintenance....................................................................................................................................................................................................................9
6.1 Replacing the flow sensor with brackets (type SM-6 / SM-6-V only) ...................................................................................................9
6.2 Replacing the metering tube (type SM-6 / SM-6V only)......................................................................................................................... 11
6.2.1 Without flow sensor ...........................................................................................................................................................................11
6.2.2 With flow sensor..................................................................................................................................................................................11
6.3 Replacing the metering tube - Safety flow meters S-SM........................................................................................................................ 11
7 Service and repair..........................................................................................................................................................................................................12
7.1 Troubleshooting ................................................................................................................................................................................................ 12
7.2 Spare parts and accessories ........................................................................................................................................................................... 12
7.2.1 Spare parts and accessories - S-SM ...............................................................................................................................................12
7.2.2 Spare parts and accessories - switch amplifier..........................................................................................................................12
8 Disposal............................................................................................................................................................................................................................13
9 Appendices..................................................................................................................................................................................................................... 14
9.1 Technical Data.................................................................................................................................................................................................... 14
9.2 Dimensions ..........................................................................................................................................................................................................15
9.3 Measuring ranges ............................................................................................................................................................................................. 16
10 Attached documents................................................................................................................................................................................................... 18
iBühler Technologies GmbHBE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
1 Introduction
1.1 Intended use
The flow meter can be used to display flow volumes of sample gasses or liquid mediums. Please refer to the nameplate to
identify your model. In addition to the job number it also contains the item number and model designation. Any special fea-
tures applicable to a flow meter model are described separately in the operating manual. When connecting, please note the spe-
cific values of the flow meter, and the correct version when ordering spare parts.
SM-6/SM-6-V series flow meters can also be equipped with a bistable limit switch. On the SM-6-V the flow volume can be adjus-
ted with the needle valve.
On S-SM series safety flow meters the actual metering glass is protected by a second, thick-walled glass cylinder. If the metering
glass bursts, the outer glass cylinder resumes protecting so medium cannot leak. A stainless steel tube further protects this
outer glass cylinder from mechanical damage. Please refer to the data sheet for the various S-SM models.
NOTICE When used in explosive areas
Model SM-6, SM6-V and S-SM 3-1 flow meters meet the fundamental safety require-
ments of Directive 2014/34/EU and are therefore suitable for use in Ex areas (Zone 1, Ex-
plosion Group IIC, hazard notes must be observed). Explosion group IIB (model SM-6 and
SM-6-V) or IIC (model S-SM 3-1) non-flammable and flammable gasses which may occa-
sionally be explosive during normal operation may be conveyed through the needle
valves (Zone 1). The type plate on the flow meters has no Ex classification, as the medi-
ums have no own ignition sources and therefore do not fall under Directive 2014/34/EU.
1.2 Contents
– 1 x Flow meter
– 1 x Product documentation
– 1 x Bracket (Model SM-6 / SM-6-V only)
2 Bühler Technologies GmbH BE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
1.3 Ordering instructions
The item number is a code for the configuration of your unit. Please use the following model key:
4056 X X X 99 X Measuring range*
0 0 Air 6 - 60 Nl/h
0 1 Air 10 - 100 Nl/h
0 2 Air 25 - 250 Nl/h
0 3 Air 50 - 500 Nl/h
0 4 Air 80 - 800 Nl/h
0 5 Water 0.5 - 5 L/h
0 6 Water 1.2 - 12 L/h
0 7 Water 2.5 - 25 L/h
0 8 Water 4 - 40 L/h
0 9 Water 6 - 60 L/h
1 0 Special range
0 without needle valve
1 Valve PVDF / Viton
2 Valve PCTFE / perfluorelastomer
S Limit switch with mounting bracket
- without limit switch
* Standard measuring tubes; air 20 °C 1.2 bar abs; water 20 °C
Ordering information for limit switch: A limit switch is factory installed if the last character of the item number is "S". Without
the "S" marking the flow meter has no limit switch. We offer various switch amplifiers for controlling the limit switch (see data
sheet no. 400003).
3Bühler Technologies GmbHBE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
2 Safety instructions
2.1 Important advice
Operation of the device is only valid 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 Wear respiratory equipment
Warns not to inhale toxic gasses Wear a safety mask
Warns of corrosive liquids Wear gloves
Warns of explosive areas
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.
4 Bühler Technologies GmbH BE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
The operator of the system must ensure:
– Safety notices and operating instructions are available and observed,
– Inspections prior to initial operation and routine inspections according to the Ordinance on Industrial Safety and Health (Be-
trSichV) are performed,
– 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.
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.
Always observe the applicable safety and operating regulations in the respective country of use when performing any type of
maintenance.
DANGER Toxic, acidic gasses
Sample gas can be harmful.
a) Switch off the gas supply before performing maintenance and, if necessary, flush the
gas lines with air.
b) If necessary, ensure a safe gas discharge.
c) Protect yourself from toxic / acidic gasses when performing maintenance. Wear ap-
propriate protective equipment.
NOTICE When used in explosive areas
Model SM-6, SM6-V and S-SM 3-1 flow meters meet the fundamental safety require-
ments of Directive 2014/34/EU and are therefore suitable for use in Ex areas (Zone 1, Ex-
plosion Group IIC, hazard notes must be observed). Explosion group IIB (model SM-6 and
SM-6-V) or IIC (model S-SM 3-1) non-flammable and flammable gasses which may occa-
sionally be explosive during normal operation may be conveyed through the needle
valves (Zone 1). The type plate on the flow meters has no Ex classification, as the medi-
ums have no own ignition sources and therefore do not fall under Directive 2014/34/EU.
DANGER Application in explosive atmosphere
Combustible gases and dust may inflame or explode. Avoid the following hazardous
situations:
Electrostatic charge (spark formation)!
Clean plastic parts and labels with damp cloth only.
Connect metallic housings to ground!
Maximum surface temperature!
The maximum surface temperature Tsurf of the equipment corresponds to the medium-
temperature Tmed; Tsurf ≤ Tmed.
Ignition temperature!
Regard the ignition temperature of the explosive gas-atmosphere as well as maximum
allowable surface temperatures (regard directive 94/9/ EC and harmonized standards).
Risk of breakage / emission of explosive or toxic gas possible.
Protect the equipment against being hit.
Gas leakage!
Life and explosion risk may result from gas leakage due to improper use or during main-
tenance.
5Bühler Technologies GmbHBE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
3 Transport and storage
The product should only be transported inside the original packaging or a suitable alternative.
When not in use, the equipment must be protected from moisture and heat. They must be stored in a covered, dry and dust-free
room at a temperature between -10 °C and 40 °C.
6 Bühler Technologies GmbH BE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
4 Installation and connection
The flow meters are equipped with the following threads:
Flow meter Thread
SM-6 / SM-6-V G 1/4
S-SM 3-1 NPT 1/4”
Please refer to chapter Dimensions [> page15] for the assembly drawing. The fittings must be screwed in tight, sealed with Te-
flon tape or sealant/flat gasket!
4.1 Mounting a flow sensor with brackets (type SM-6 / SM-6-V only)
DANGER Explosion hazard
Application in explosive atmosphere
Only use certificated flow sensors.
The limit switch is preinstalled.
– Prior to first use, loosen the plastic countersunk screws from the mounting plate and position the limit switch at the desired
height.
– The Plastic countersunk screws must be fastened again.
– Connect the cable to the power supply.
– Using the limit switch in Ex areas: Please note the wiring parameters! We recommend a selection of switch amplifiers, also
see data sheet no. 400003.
7Bühler Technologies GmbHBE400001 ◦ 11/2016
SM-6, SM-6-V, S-
SM 3-1
5 Operation and control
NOTICE
The device must not be operated beyond its specifications.
5.1 Read the flow value
The flow value can be read at the top of the float.
Please note: The values can only be correct, if the medium and pressure specified on the type plate match the sample.
5.2 Adjusting the needle valve
NOTICE!Please note: The needle valve is NOT a shut-off valve. Do not force the valve.
The valve is closed turning clockwise.
8 Bühler Technologies GmbH BE400001 ◦ 11/2016
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