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Summary of Contents for SKC chek-mate
- Page 1 Air Flowmeter Operating Instructions This manual covers the following models: 375-00205 / 375-0550...
- Page 2 Purchase Details and Service Record Thank you for choosing an SKC product. Your purchase is covered by our warranty, details of which can be found inside the rear cover of this manual. Product Model Number Product Serial Number Date of Purchase SKC recommends a minimum service interval of one year for this product.
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Page 3: Table Of Contents
Introduction to the chek-mate Flowmeter ................4 General Information .......................6 Diagram of the chek-mate Flowmeter ................8 Using the chek-mate Flowmeter ................... 10 Battery Care ........................ 14 Calibration of the chek-mate Flowmeter ................ 16 Notes .......................... 18 Warranty ........................20 www.skcltd.com 007-03-004 Issue D... -
Page 4: Specifications
Specifications Parameter Model 375-00205 Model 375-0550 Airflow range 20 ml/min to 500 ml/min 0.5 litre/min to 5.0 litre/min < 100 ml/min : 0.01 ml/min Airflow display resolution 0.001 litre/min >= 100 ml/min : 0.1 ml/min 20 to 50 ml/min : ±2.5% of 0.5 to 0.75 litre/min : ±2.5% of reading reading... - Page 5 33.5mm ( 1.3”) Note: SKC Ltd reserves the right to make changes to the specification and design of this product at any time without prior notice to the end user. The chek-mate flowmeter is manufactured by SKC Ltd under a sole license from Graham Blatchford.
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Page 6: Introduction To The Chek-Mate Flowmeter
Operating Principle The chek-mate is an orifice type flowmeter. Its reading is determined by measuring the pressure drop across the orifice caused by the flow of air through the orifice, using a differential pressure sensor. - Page 7 The chek-mate is connected to the pump using a CalChek communication cable (P/N 375- 200) which plugs into a socket on the right hand side of the chek-mate, and to the serial interface port on the pump.
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Page 8: General Information
• Avoid extended use of the flowmeter in areas with high levels of airborne particulates. An external inlet filter (not SKC supply) can be used with the chek-mate flowmeter if this cannot be avoided. Any filter used should have high collection efficiency (collect the majority of all dust particles) and low back pressure. - Page 9 Batteries Directive (see below). Please contact your local distributor or SKC Ltd for further details on how to comply with the requirements of the WEEE Directive. SKC Ltd’s producer registration number is WEE/KH0054TQ.
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Page 10: Diagram Of The Chek-Mate Flowmeter
Diagram of the chek-mate Flowmeter Page 8 007-03-004 Issue D www.skcltd.com... - Page 11 Key to Flowmeter Diagram 1. LCD screen 2. Low battery indicator 3. On/Off button 4. Inlet port 5. Outlet port 6. Battery compartment cover 7. Battery 8. CalChek interface socket (375-0550 model only) www.skcltd.com 007-03-004 Issue D Page 9...
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Page 12: Using The Chek-Mate Flowmeter
1) Setting an Air Sample Train Flow Rate a. Ensure that the chek-mate flowmeter has been in the location where it is to be used for enough time for its temperature to stabilise to the ambient temperature. A minimum of 10 minutes is recommended. - Page 13 Switch off the flowmeter using the on/off button. 2) Automatic Power Off Timer The chek-mate flowmeter will remain on indefinitely provided that an airflow rate above the minimum display value is indicated. With an airflow rate lower than the minimum display www.skcltd.com...
- Page 14 (P/N 375-200) is required. Plug one end of the cable into the socket on the right hand side of the chek-mate flowmeter and the other end of the cable into the serial interface socket on the pump (the socket is mounted on the charging cradle for the AirChek Touch pump and the pump must be fitted to the charging cradle to perform CalChek calibration).
- Page 15 CalChek interface at 3.5 second intervals. e. The pump will automatically read in the chek-mate flow readings as required to complete the CalChek process, and completion of the process will be indicated on the pump display.
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Page 16: Battery Care
• The SKC replacement primary (disposable) battery part number is P37500. • NiMH secondary (rechargeable) batteries may also be used (not available from SKC), but it must be ensured that the battery used is an 8.4V nominal type, and not a 7.2V nominal type which are also manufactured. - Page 17 Battery Care • The European Batteries Directive and equivalent legislation in other countries requires that all batteries are disposed of correctly at the end of their working life. This means that they must be collected and treated separately from other waste. • It is recommended to remove the battery from the battery compartment if the flowmeter is not to be used for an extended period of time.
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Page 18: Calibration Of The Chek-Mate Flowmeter
Calibration of the chek-mate Flowmeter Calibration Interval SKC recommend a minimum calibration interval of one year for this product. However, it is the responsibility of the user to determine the most suitable interval in order to meet their quality assurance system requirements. Consideration should also be given to the frequency of use and operating environment when determining the calibration interval. - Page 19 1. It is strongly recommended to send a copy of this instruction manual with the chek-mate unit when sending to a third party calibration laboratory. 2. It is recommended to fit a new battery prior to sending the chek-mate for third party calibration.
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Page 20: Notes
Notes Page 18 007-03-004 Issue D www.skcltd.com... - Page 21 Notes www.skcltd.com 007-03-004 Issue D Page 19...
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Page 22: Warranty
4. In the event of a defect, malfunction, or other failure of the instrument not caused by any misuse or damage to the instrument while in the possession of the Buyer, SKC will remedy the failure or defect Page 20 007-03-004 Issue D www.skcltd.com... - Page 23 The remedy will consist of service or replacement of the instrument or refund of the purchase price, at the option of SKC. However, SKC will not elect refund unless it is unable to provide replacement and repair is not commercially practicable.
- Page 24 A member of the SKC global group of companies SKC Limited 11 Sunrise Park, Higher Shaftesbury Road, Blandford Forum, Dorset DT11 8ST United Kingdom T: +44 (0) 1258 480188 F: +44 (0) 1258 480184 E: info@skcltd.com W: www.skcltd.com...
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