Transcription of Breathing machine - INSPEC International
1 INSPEC International Limited 56 Leslie Hough Way Salford, Greater Manchester M6 6AJ, United Kingdom Tel: +44 (0) 16 1737 0699 Ext 230 Fax: +44 (0) 16 1736 0101 Email: Please contact us for a quotation Effective September 2013 Y o u r g l o b a l p a r t n e r f o r t e s t i n g a n d c e r t i f i c a t i o n o f a l l t y p e s o f p e r s o n a l p r o t e c t i v e e q u i p m e n t R egist er ed N umber 2218329 er om Inc orpor at ed in E ngland Breathing machine Description: The apparatus comprises essentially 3 main parts: A pneumatic cylinder and a slave cylinder for CO2 dead space testing; A geared electric motor and mechanical drive mechanism; Control gear for the motor and solenoid operated valves. By making the appropriate adjustments to the motor controller and the mechanical drive mechanism respectively, the pneumatic cylinder is capable of providing any one of five pre-set swept volumes of , , , and litres at variable rates up to 40 strokes per minute.
2 The slave cylinder provides a swept volume equivalent to 5% of that of the main cylinder. In order to provide positive airflow control, four solenoid-operated valves are provided. The solenoids are controlled by photoelectric switches. The valves should be connected in line with the 1 bore PVC tubing provided (1/2 bore for the CO2 circuit). The exact connection arrangement of the tubing and the valves, with respect to the dummy headform which carries the facemask under test, will depend upon the standard being employed. An example is given EN136, full face masks. Available versions: The Breathing machine comes in 4 variants: Single ended with CO2 slave cylinder (suitable for most work); Double ended main lung with single ended CO2 slave cylinder; Single ended without CO2 slave cylinder (suitable for Breathing resistance measurements); Double ended main lung only (suitable for Breathing resistance measurements or performing simulated wearing).
3 Continued on page 2 Breathing machine (continued) Services required: Bench mounted 110/230 volts AC, 50/60Hz, mains electricity Approximate packed size & weight: 130 x 75 x 60 cm, 150 kg Relevant standards: EN 136 EN 140, EN 149 EN 12941, EN 12942 EN 13274-3, EN 13274-6 EN 14594
