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Water TreatmentProducts
www.scalemaster.co.uk
Catalogue 2013-14
www.scalemaster.co.ukWater Treatment Products I An Introduction
02
An IntroductionScalemaster® has been a leading supplier of quality water treatment products for over 25 years. From development of our original ‘electrolytic’ in-line limescale inhibitor in the 1980’s, we have grown our portfolio and now offer a comprehensive range of limescale inhibitors, filters, water softeners and heating system products incorporating many innovative features.
Our philosophy is one of continuous product development utilising state-of-the-art design and patented technology to deliver improved performance*.
We recently became the first company to deliver a more environmentally-friendly range of premium heating system chemicals in 250ml bottles, which still treat a full 100 litre (nominal 10 radiator) system (Page 6). This year sees the introduction of our i-Mag® heating system filter, the first magnetic sludge filter manufactured in stainless steel (Page 8) and i-Test®, the world’s first hand-held inhibitor tester which gives an instantaneous assessment of whether a heating system is fully protected against corrosion (Page 19).
Please contact our Sales Team on 01785 811636 for further information.
Thank you for your continued support.
Dr. Carl JasperDirector
*We reserve the right to make further improvements to products without prior notice.
www.scalemaster.co.uk The need for water treatment I Water Treatment Products
03The need for water treatmentFor the first time in May 2006, the Domestic Heating Compliance Guide (Part L of the Building Regulations) specified a requirement for the provision of some form of water treatment to prevent limescale precipitation in water heating applications in hard water areas. This was in response to findings that boilers typically lost up to 25% efficiency over the life of the boiler.
Subsequent guidance also specified the requirement for chemical cleansing and treatment of the water in central heating systems to prevent a reduction in heat transfer efficiency of typically up to 6%. In the near future, magnetic sludge filters, which trap sludge and maintain system efficiency, look set to become mandatory.
Scalemaster® water treatment products help meet the requirements of this legislation whilst delivering savings from reduced fuel usage.
All Scalemaster® products meet current safety and performance standards where appropriate – Installers should ensure that installations comply with the Water Quality (Water Fittings) Regulations 2000 and other relevant by-laws.
Contents
04 Limescale InhibitorsLimescale Control
12 Drinking Water FiltersFiltration
08 Heating System ProductsHeating Circuit Care
16 Tailored PackagesCustom Solutions
06 ChemicalsChemical Treatment
14 Scale Protected ShowersShowering / Bathing
10 Water SoftenersWater Softening
18
20
Analysis & Detection EquipmentTesting and Analysis
Technical InformationSpecifications and Data
www.scalemaster.co.ukWater Treatment Products I Limescale Inhibitors
04
Limescale InhibitorsMagnetic and Mini: for Individual Appliance Protection
Electrolytic: for best performance and Whole House ProtectionElectronic: for stored water and Whole House Protection
MAGNETIC LIMESCALE INHIBITORS
Magnetic Speedfit01 15mm ............ Code: 400105 Box Qty: 10
Magnetic Gold02 15mm ............ Code: 400143 Box Qty: 1003 22mm ............ Code: 400259 Box Qty: 10
Magnetic Platinum04 15mm ............ Code: 400167 Box Qty: 1005 22mm ............ Code: 400181 Box Qty: 10
DIGISONIC LIMESCALE INHIBITORS
Digisonic DS1016 15mm ............ Code: 404080 Box Qty: 5
Digisonic DS2017 15mm ............Code: 404059 Box Qty: 518 22mm ............ Code: 404066 Box Qty: 519 28mm ............ Code: 404907 Box Qty: 5
Digisonic DS3023 15mm ............ Code: 404004 Box Qty: 5
DS20 Expansion Kits20 15mm ............ Code: 40411021 22mm ............ Code: 40412722 28mm ............ Code: 404134
ELECTROLYTIC LIMESCALE INHIBITORS
Scalemaster Mini06 15mm ........... Code: 401096 Box Qty: 10
Electrolytic Platinum10 15mm ........... Code: 401072 Box Qty: 1011 22mm ........... Code: 401089 Box Qty: 10
Electrolytic Speedfit07 15mm ........... Code: 401010 Box Qty: 10
Electrolytic Gold08 15mm ........... Code: 401041 Box Qty: 1009 22mm ........... Code: 401065 Box Qty: 10
Electrolytic Gold12 28mm ............................... Code: 402031 13 35mm ........... Code: 402048
14 42mm ........... Code: 40205515 54mm .................. Code: 402062
www.scalemaster.co.uk Limescale Control I Water Treatment Products
Original and best!Scalemaster® Electrolytic limescale inhibitors are the only physical ‘in-line’ water conditioners proven* to extend boiler life typically by up to 50% by preventing limescale build-up in hard water areas.*in independent tests carried out by Advantica (previously part of British Gas plc)
05Lim
escale Control
www.scalemaster.co.ukWater Treatment Products I Chemicals
06
Chemicals
HEATING SYSTEM CHEMICALS 1/2 Litre Range
24 SM1 Inhibitor .............................. Code: 500010 ..... Box Qty: 1225 SM2 De-Scaler ........................... Code: 500119 ..... Box Qty: 1226 SM3 Cleaner ............................. Code: 500218 ..... Box Qty: 1227 SM4 Sludge Remover ................ Code: 500317 ..... Box Qty: 1228 SM5 Leak Sealer ........................ Code: 500324 ..... Box Qty: 12
HEATING SYSTEM CONCENTRATES 310 ml Tubes
29 SM1 Inhibitor .............................. Code: 500416 ...... Box Qty: 1030 SM2 De-Scaler ............................Code: 500515 ...... Box Qty: 1031 SM3 Cleaner ...............................Code: 500614 ...... Box Qty: 1032 SM4 Sludge Remover .................Code: 500713 ...... Box Qty: 1033 SM5 Leak Sealer .........................Code: 500812 ...... Box Qty: 10
PREMIUM SYSTEM CHEMICALS 1/4 Litre Range
34 Gold 100-I Inhibitor ..................... Code: 500904 ...... Box Qty: 1235 Gold 100-C Cleanser.................. Code: 500928 ...... Box Qty: 1236 Gold 100-LS Leak Sealer ........... Code: 500942 ...... Box Qty: 1237 Gold 100-I 5 Litre Inhibitor .......... Code: 500980 ...... Box Qty: 338 Gold 100-C 5 Litre Cleanser ....... Code: 500997 ...... Box Qty: 3
For water quality/ inhibitor testing, see page 18
All Chemicals treat a full 100 Litre (10 radiators) system
5 Litre Range - treats 2000 Litre system
www.scalemaster.co.uk Chemical Treatment I Water Treatment Products
First class protection!The Scalemaster® GOLD range of concentrates are the first heating system chemicals in a 250ml bottle to treat a full 100 litre, 10 radiator, system.
Inhibitor meets the full Buildcert specification. Cleanser delivers satisfactory cleaning performance within one hour (hot).
07C
hemical Treatm
ent
5 Litre Range - treats 2000 Litre system
www.scalemaster.co.ukWater Treatment Products I Heating System Products
08
Heating System Products
CHLORIDE-FREE FLUX SOLDERING PASTE
44 Masterflux - 250ml Tub Code: 700021 Box Qty: 10
CONDENSATE NEUTRALISATION
45 Condense Master Code: 600703 Box Qty: 8
PRIMARY CIRCUIT CARE - NON-CHEMICAL CORROSION PROTECTION
39 22mm Corrosion Master CM5 Code: 600307 Box Qty: 10
41 Duodefence Code: 600109 Box Qty: 5
43 External Leak Sealer Paste 50g Code: 500843 Box Qty: 10
40 22mm Corrosion Master CM10 Code: 600017 Box Qty: 10
42 22mm i-Mag Magnetic Sludge Filter Code: 601007 Box Qty: 6
Use with Scalemaster® 250ml GOLD chemicals (Page 6)
5 YEARWARRANTY
www.scalemaster.co.uk Heating Circuit Care I Water Treatment Products
i-Mag - the ultimatemagnetic sludge filter!The new way to dose and protect your central heating system. Delivering class-leading performance.
Stainless steel construction with 5 year warranty.
09H
eating Circuit C
are
www.scalemaster.co.ukWater Treatment Products I Water Softeners
10
For water hardness testing strips,see page 18
Water Softeners
SOFTLINE
Softline 10047 10 litre Metered Electric (5 persons) Code: 298036
Softline 15046 Non-Electric (up to 5 persons) Code: 900100
Softline 20048 15 litre Metered Electric (up to 7 persons) Code: 298038
Softline 45049 Non-Electric (up to 11 persons) Code: 900117
50 15mm Standard Fitting Kit Code: 298039
51 Combi Fitting Kit Code: 298041
52 22mm Hi Flow Fitting Kit Code: 298040
53 22mm Hi-Flow Hoses (x2) Code: 298042
54 Salt Tablets 10g Bag Code: 900896
SCALEMASTER
All softeners carry a full 5 year parts and labour warranty
www.scalemaster.co.uk Water Softening I Water Treatment Products
Reliable and economical!All Scalemaster® softeners carry a full 5-year parts and labour warranty.
CARBON NEUTRAL - Scalemaster® Softline softeners use less than 4% water for the regeneration cycle making them carbon neutral, as defined by the Code for Sustainable Homes.
11W
ater Softening
www.scalemaster.co.ukWater Treatment Products I Drinking Water Filters
12
Drinking Water Filters
55 10” Filter Housing 3/4” ports Code: 901107
56 10” Filter Housing 1/4” ports Code: 901206
57 10” Duplex Housing Code: 901220
SOFTLINE FILTER HOUSINGS
61 10” Sediment 0.3 micron Code: 901237
62 10” Sediment 5 micron Code: 901244
58 10” Carbon Block (Taste and Odour) Code: 901114
59 10” GAC/ Phosphate (Taste, Odour and Scale) Code: 901121
60 10” Ceramic (Bacteria) Code: 901138
63 10” Sediment 25 micron Code: 901251
SOFTLINE FILTER CARTRIDGES
70 Long Reach Chrome Touch Tap Code: 901268
71 6mm Dia Blue Tubing 2 metres Code: 901275
ACCESSORIES / SPARE PARTS
SOFTLINE DRINKING WATER KITS
66 Crystal Drinking Water Kit Code: 901169
67 Replacement Cartridge Code: 901176
68 Crystal+ Drinking Water Kit Code: 901183
69 Replacement Cartridge Code: 901190
64 10” Housing Water Filter Kit Code: 901213
65 Replacement Cartridge Code: 901114
www.scalemaster.co.uk Filtration I Water Treatment Products
Simply, great tasting water!Our concise range of products makes selection of the correct filter to remove unpleasant taste, limescale, chlorine and sediment, easy.
13Filtration
www.scalemaster.co.ukWater Treatment Products I Scale Protected Showers
14
For Scalemaster® mini individual shower protector, see page 4
Scale Protected Showers
72 SL80 Softline 8.5kW White .................................... Code: 800516 73 SL80 Softline 8.5kW Chrome ................................ Code: 800127
74 SL90 Softline 9.5kW White .................................... Code: 800622 75 SL90 Softline 9.5kW Chrome ................................ Code: 800233
www.scalemaster.co.uk Showering / Bathing I Water Treatment Products
With built-in limescale protectionScalemaster® Softline® showers incorporate an electrolytic limescale inhibitor which alters the size and nature of any limescale crystals formed, making them less likely to stick, so extending product life.
15S
howering / B
athing
Electrolytic Scale Inhibitor
Heating element
www.scalemaster.co.ukWater Treatment Products I Tailored Packages
16
Tailored Packages
EQUIPMENT SUPPLIED:
Water Softeners
Reverse Osmosis Systems
Filtration
UV disinfection
SERVICE SECTORS
Ice Making
Catering
Dishwashing / Cleaning
Shower Rooms
Heating / Cooling
Laundry
Pubs / Bars
Food Processing
We can offer ‘own-branding’ of any of the products shown in this catalogue
www.scalemaster.co.uk Custom Solutions I Water Treatment Products
SERVICE SECTORS
Ice Making
Catering
Dishwashing / Cleaning
Shower Rooms
Heating / Cooling
Laundry
Pubs / Bars
Food ProcessingExcellence in custom solutionsThrough our expertise and partnership with leading component suppliers, we can develop and deliver bespoke solutions to optimise water quality for your industrial and commercial operations.
17C
ustom S
olutions
www.scalemaster.co.ukWater Treatment Products I Analysis & Detection Equipment
18
Analysis & Detection Equipment
76 Water Hardness Test Strips – 6 PackCode: 901008
78 Heating System Water Quality Check KitCode: 505092
77 Water Leak DetectorCode: 709109
MAINS WATER
HEATING SYSTEM WATER TESTING
In the event of any query please email [email protected] quoting the sample reference/ report number
Heating System Water Quality Report Sample Reference/Report No: 1-‐80000 Date: 9/11/2012
Customer Name & Email Address A Customer customer@email_address.com Property Address/Postcode No. 123 PO57 CODE
Sample Details Date sample taken: 05/11/2012 Date sample analysed: 08/11/2012
Observations and System History 4yrs old Boiler – Believe dosed with Inhibitor
Reason for Water Analysis Pin-‐holing of radiators Laboratory Analysis Results
Parameter Units Sample Source Result Ideal Value or Range* Mains System Colour Clear Good Clear to light straw pH pH 7.2 8.1 At Limit 6.8 -‐ 8.1 Conductivity (20°C) uS/cm 243 898 Depends upon treatment method Hardness mg/l CaCO3 280 120 Poor Not more than 25% below mains water Alkalinity mg/l CaCO3 120 330 Depends upon inhibitor used Chloride mg/l 33 270 Poor No more than 30mg/l above mains Sulfur mg/l 7 10 Sodium mg/l 12 177 Depends on treatment method Molybdenum mg/l N/a 5 Low Depends on inhibitor used Boron mg/l N/a 10 Depends on inhibitor used Phosphorus mg/l N/a <1 Depends on inhibitor used Zinc mg/l N/a <1 Depends on inhibitor used Potassium mg/l N/a 19 Depends on inhibitor used Iron mg/l N/a <1 Good Up to 125mg/l for inhibited system Copper mg/l N/a <0.1 Good Less than 0.2 mg/l for Al systems Aluminium mg/l N/a 0.1 Good Less than 3 mg/l
*Ideal values denote typical/acceptable levels for system water correctly dosed with good quality proprietary Inhibitor Interpretation of the Results
pH is at limit of acceptable range. Conductivity would indicate presence of chemicals in system water. Hardness is low and would indicate that limescale precipitation has occurred Alkalinity would indicate presence of chemicals in system water. Net chloride level is excessive and would indicate that system has not been thoroughly cleansed & flushed. Chloride level would be expected to increase risk of pitting corrosion. (Additional chloride may derive from residual flux or cleanser in system). Trace of boron would indicate that system was dosed with inhibitor but concentration is now very low.
CONCLUSIONS
1. Chloride level would be expected to result in increased risk of pitting corrosion. 2. Trace of inhibitor is present but concentration is very low.
RECOMMENDATIONS
1. Drain and flush system with proprietary cleanser in accordance with BS 7593:2006. and add appropriate proprietary inhibitor at final fill.
www.scalemaster.co.uk Technical I Water Treatment Products
Testing, testing!Coming soon... i-Test from Scalemaster®
The first hand-held inhibitor tester which gives you instantaneous assessment of whether your central heating system is fully protected against corrosion, regardless of corrosion inhibitor manufacturer!
19Testing &
Analysis
Undosed
Top-upInhibitor
SystemProperly
Dosed
TechnicalInformation
www.scalemaster.co.ukWater Treatment Products I Technical Information
LIMESCALE INHIBITORSGeneral Product Information For the prevention of calcium carbonate limescale in water heating applications
Application Magnetic and Mini: For individual appliance protection Electrolytic: For Whole House Protection Digisonic: For stored water applications and whole house protection
Location Magnetic and mini – Cold water mains supply pipe 1-2 metres before the appliance. Electrolytic – Cold water mains supply pipe. After stop-cock, before first draw off. Digisonic – Cold water mains supply pipe after stop-cock or 1-2 metres before boiler or cylinder
Service Designed for cold mains water applications between 5°C - 30°C. DO NOT allow to freeze.
Conditions Maximum working pressure: 10bar
Approvals All Scalemaster Limescale inhibitors are WRAS Approved
In-line Models Speedfit® Gold Platinum
Fitting sizes (mm) 15 15 22 15 22
Max flow rate (litres/min) 32 32 36 32 36
Fitting type Speedfit® Push Fit Compression Speedfit® Push Fit
Body material Acetal Copper Copper
Length (mm) 185 175 175 150 175
Diameter (mm) 44 35 35 35 35
Earth bonding required Yes No Yes
Guarantee (years) 2 3 3
PRECAUTIONS – Speedfit models MUST be installed with a run of at least 1m of copper pipe from a boiler and 450mm from a soldered joint to comply with BS5955-8 and the Fitting Manufacturer’s Instructions.
Digisonic Models DS10 DS20 DS30
Pipe Diameter (mm) 15 (only) 15 22 28 15 (only)
Power 15v AC/DC transformer supplied240v 50hz Internal transformer
(IP65 rating)
Fitting type Wrap around Compression Wrap around
Aerial type Self wound Pre-wound Self wound
Cable length (m) 2m both from transformer and aerial 2
Earth bonding required Yes No Yes
Guarantee (years) 2 3 3
HEATING SYSTEM CHEMICALS & CONCENTRATESGeneral Product Information For the treatment of re-circulating water in central heating systems
Application Compatible with all metals, including aluminium and conventional plastics and rubbers used in standard heating system component construction
Features Non-hazardous formulations. Supplied in HDPE bottles or cartridges. Peel-off installation record labels on reverse of product packaging. 100% recyclable packaging
Product Application
500ml bottle or 310ml cartridge 250ml bottle
SM-1 InhibitorSM Gold 100-IInhibitor
Prevents corrosion, hard water limescale precipitation and bacteriological growth – Essential for protecting hot water central heating systems and maintaining operational efficiency. BuildCert Approved.
SM-2 Non-Acid De-ScalerRestores and maintains heat-exchanger efficiency in hard water areas and stops boiler noise (‘kettling’) by re-dissolving limescale precipitated on the boiler heat-exchanger surfaces.
SM-3 System CleanerSM Gold 100-CCleanser
For the pre-commissioning of NEW central heating systems: removes installation foulants, flux, grease and debris suspended in water by flushing. Suitable for use with all power-assisted flushing equipment.
SM-4 Sludge RemoverFor the regeneration of established heating systems: removes iron oxide corrosion products by flushing and restores circulation and system performance. Suitable for use with power-assisted flushing equipment - Delivers satisfactory cleaning performance typically within 2 hours (hot).
SM-5 Leak SealerSM Gold 100-LSLeakSealer
For internal sealing of inaccessible leaks and weeping joints. Forms a soft seal within 24 hours. Will not cause blockages in circulatory pumps or air vents.
HEATING SYSTEM PRODUCTS
CorrosionMasterGeneral Product Information For the treatment of re-circulating water in central heating systems.
Application Physical corrosion inhibitor for reducing corrosion in central heating systems. Works by reducing dissolved oxygen level and dosing water with zinc. 5 or 10 year life.
Location Install in flow or return of heating circuit. Maximum operating pressure 10 bar. No power source or maintenance required
i-MagApplication Magnetic sludge filter for removing magnetite (black iron oxide) from central
heating systems
Features All stainless steel construction with double seal for extra security and long-term reliability. Patents applied for and Registered design. 5 year warranty.
Location Install in the return pipework to the boiler.
Technical Information
Specifications CM5 CM10
Fitting type Compression Compression
Fitting sizes (mm) 22 22 28
Max flow rate (litres/min) 36 36 63
Length (mm) 135 170 280
Diameter(mm) 35 42 42
Min lifetime (years) 5 10
Guarantee (years) 2 2
Specifications CM10
Fitting type Compression
Magnet strength (per pair) (Gauss) 5,060
Sludge capacity 280g
www.scalemaster.co.uk Technical Information I Water Treatment Products
External Leak SealerApplication For sealing small leaks on all types of joints and fittings. Ideal for temporary repairs. Cures in 1 hour.
PRECAUTIONS – Not suitable for use with bitumen or felt. Avoid contact with chrome-plated & gold-plated decorative fittings.
MasterfluxApplication Flux soldering paste suitable for all gas and water capillary joint applications.
Features Heat activated, self-cleaning, pH neutral, chloride free.
Approvals WRAS approved for use on hot and cold water pipework, including potable water systems.
CondenseMasterApplication For neutralising acidic flue gas condensate
discharging from high efficiency boilers.
Features Suitable for all domestic condensing boilers upto 35kW. Nominal 12 month product life.
Location Install vertically in plastic pipework carrying condensate from boiler to waste water drain. Replace cartridge annually.
PRECAUTIONS – DO NOT allow to freeze.
WATER SOFTENERSModels Softline 100 & 200 Electric Metered with 240v 50hz mains transformer supply. Softline 150 & 450 Non-Electric with integrated clip-connection by-pass manifold and hoses.
In-line Models Softline 100 Softline 200 Softline 150 Softline 450
Resin Volume (litres) 10 15 3.3 (Ultra-fine resin) 9 (Ultra-fine resin)
Max. softened water capacity (litres) /water efficiency at 200ppm 2500 / 2.1% 3750 / 1.6% 750 / 2.4% 2250 / 1.8%
Max. softened water capacity (litres) /water efficiency at 300ppm 1667 / 3.2% 2500 / 2.4% 500 / 3.6% 1500 / 2.7%
Salt used per regeneration cycle (g) 1500 2200 330 1000
Water used per regeneration cycle (litres) 53 59 18 40
Regeneration time (mins) 42 46 15 24
Size (mm) H x W x D (inc connectors) 445 x 275 x 485 600 x 270 x 485 470 x 270 x 535 573 x 330 x 574
Min/max working pressure (bar) 1.5 / 8 1.5 / 8 1.0 / 6 1.0 / 6
All models have ¾” BSP male inlet & outlet connections and ½” drain & overflow connections. Max working temperature: 40°C.All models come with full 5 year parts and labour warranty.
SCALE PROTECTED SHOWERSGeneral Product Information Electric showers with built-in electrolytic limescale inhibitor for longer life
Application Splash-proof casing to BS3456. Integral stabiliser valve for constant water temperature and built-in thermal safety cut-out. BEAB Approved. CE Marked
Installation Water Connection: Top, bottom and rear entry points for 15mm diameter pipe using compression fitting.
Electrical connection: Top, bottom and rear entry points. Must be permanently connected to electrical supply through double pole linked switch with minimum contact gap of 3mm and minimum break capacity of 40 amps. All wiring MUST meet IEEE requirements.
kWFuse/nom. current
at 240V (amps)Size (mm)H x W x D
Min. working pressure
Min. flow rate (litres/min)
Max. static pressure
SL80 8.5 40/35.4 300 x 200 x 78 1 bar (15 psi) 8 10 bar (150 psi)
SL90 9.5 40/39.6 300 x 200 x 78 1 bar (15 psi) 8 10 bar (150 psi)
DRINKING WATER FILTERSGeneral Product Information Concise range of filter housings, filters and drinking water kits to improve taste and/or remove limescale, chlorine and sediment from domestic colds mains water supplies.
Housings 3-part 10” housings in blue. ¾” BSP ports with brass inserts. 2-part 10” housings in white PET. ¼” screw-in ports. Maximum pressure rating:
Filters All 10” in-line filters. Nominal capacity 3000 litres. Recommended replacement interval: every 6 months.
Filter Kits Drinking water kits improve taste, remove odour and scale. Nominal capacity 3000 litres. Recommended cartridge replacement interval: every 6 months.
ANALYSIS AND DETECTION EQUIPMENT
Heating System Water Quality Check ServiceParameters Physical properties: Colour, pH, Conductivity, Hardness & Alkalinity (as CaCO3) Element concentrations: Chloride, sulphur, sodium,Analysed potassium, molybdenum, boron, phosphorus, zinc, iron, copper, aluminiumw
Water Leak DetectorApplication Gives audible alarm upon detection of water spills and leaks on most level surfaces. Ideal for use in out of line-of-sight locations e.g. under baths & sinks
in kitchen cupboards
Operation Battery operated 80dB alarm – 1.5v AAA battery gives nominal 1-2 year life. Intermittent low volume alarm indicates when battery needs to be replaced.
Dimensions 33mm (H) x 83mm diameter W)
Specifications Condensemaster
Fitting type Speedfit Push Fit
Fitting sizes (mm) 22
Body material ABS
Length (mm) 238
Diameter(mm) 42
Replacement period 12 months (May be reduced where condensate is highly acidic)
Working media Calcined CaCO3 / MgOH
Scalemaster® is a registered trademark of Scalemaster Limited
Emerald Way, Stone Business Park,Stone, Staffs., ST15 0SR, EnglandTel: 01785 811636 Fax: 01785 [email protected] www.scalemaster.co.uk
