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Operator's Manual - Smiths Medical

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S E C T I O N 2 • D e s c r i p t i o n<br />

SECTION 2<br />

Description<br />

The EQUATOR ® Convective Warming system consists of a high-flow convective warmer with hose-end<br />

temperature control, a convective warming blanket, and accessories.<br />

The convective warmer draws ambient-temperature air through a particulate air filter. The filtered air is<br />

warmed to a selected temperature. The warmed air enters the convective warming blanket through the hose<br />

and is distributed through delivery channels. Perforations on the patient side of the air delivery channels in<br />

the blanket gently disperse warm air over the patient.<br />

The convective warmer has three outlet temperature settings, which provide flexibility in patient treatment:<br />

36°C, 40°C, and 44°C. These three temperature settings are servo-controlled by thermistors placed at the end<br />

of the hose where the hose connects to the convective warming blanket. A fourth temperature setting delivers<br />

ambient-temperature air. The temperature indicated on the control panel is the temperature of the air being<br />

delivered to the blanket at the end of the hose. A control thermistor adjusts the power applied to the heater to<br />

maintain the selected temperature. This enables the system to maintain the selected temperature under<br />

variations in ambient temperature.<br />

A safety thermistor provides a signal to a separate high-temperature comparison circuit. The safety thermistor<br />

activates and causes an alarm if the temperature exceeds the set point. The safety circuit provides an<br />

independent means of shutoff, which discontinues power to the heater and motor. This prevents patient<br />

exposure to excessive temperatures.<br />

Convective Warmer Components<br />

Front View<br />

1 Handle - used to lift and move the convective warmer<br />

2 Control Panel - contains controls and displays used during<br />

operation<br />

EQUATOR<br />

CONVECTIVE WARMING<br />

2 EQUATOR ® Convective Warmer | Operator’s <strong>Manual</strong><br />

1<br />

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