Mindray M7T - Device Enclosure and Accessories Inspection; Device Labeling Check; Protective Earth Resistance Test

D-2 Electrical Safety Inspection
D.2 Device Enclosure and Accessories
D.2.1 Visual Inspection
Test Item Acceptance Criteria
The enclosure and accessories
No physical damage to the enclosure and
accessories.
No physical damage to meters, switches,
connectors, etc.
No residue of fluid spillage (e.g., water,
coffee, chemicals, etc.).
No loose or missing parts (e.g., knobs,
dials, terminals, etc.).
D.2.2 Contextual Inspection
Test Item Acceptance Criteria
The enclosure and accessories
No unusual noises (e.g., a rattle inside the
case).
No unusual smells (e.g., burning or smoky
smells, particularly from ventilation holes).
No taped notes that may suggest device
deficiencies or operator concerns.
D.3 Device Labeling
Check the labels provided by the manufacturer or the healthcare facility are present and
legible.
 Main unit label
 Integrated warning labels
D.4 Protective Earth Resistance
a. Plug the probes of the analyzer into the device’s protective earth terminal and
protective earth terminal of the AC power cord.
b. Test the earth resistance with a current of 25 A.
c. Verify the resistance is less than limits.
 LIMITS
ALL COUNTRIES R = 0.2 Ω Maximum