Electrical; Environmental - Nellcor NPB-40 Service Manual

Section 8: Specifications
8.2

ELECTRICAL

8.3

ENVIRONMENTAL

8-2
Instrument
Power Requirements
6V, supplied by battery-power only
Patient Isolation
No electrical connection to patient (inherently insulated)
Battery
Type
Four 1.5V alkaline "AA" size batteries
Battery Capacity
Typically 19 hours with four new disposable alkaline batteries.
Note: Not all brands of off-the-shelf alkaline batteries provide the same
battery life.
Operating Temperature
Instrument
0 to 55°C
Sensor
Within physiologic range for specified accuracy
Transport/Storage Temperature (boxed)
-40 to 70°C, 15-95% RH
Humidity
Operating
15-95% noncondensing
Storage (unboxed)
15-95% noncondensing over a temperature range of -20° C to 60° C
Altitude
Operating
-1280 ft. to 12,000 ft (-390 m to 3,658 m) [650 to 1060 hPa]
Storage
-2330 ft. to 15,000 ft. (-457 m to 4,573 m) [572 to 1100 hPa]