Dental Delivery Unit Operation Manual
REV-A
Page 14 of 45
3.3.16 Explosion Pressure
Pressure system is safety and reliable, no burst or leak problem under the allowed work
pressure.
3.3.17 Pressure Release
All the parts of machine (may generate pressure in the fire accident) are equipped with
pressure relief device.
3.3.18 Additional loads which under the emergency measures.
The equipment afford additional 40kg load, in the interval 1s, test duration 1min, the equipment
shall not leave the ground, no visible damage after the test.
3.3.19 high speed air turbine hand piece: speed ≥ 260 × 103r/min, with medical device
registration certificate.
3.3.20 pneumatic motor hand piece: speed ≥ 22 × 103r/min: hand piece torque ≥ 2.65 N.M,
with medical device registration certificate.
3.3.21 light curing machine: with medical device registration certificate.
3.3.22 Interface traffic of hand piece is adjustable, adjust the range of 28L/min to 40L/min.
3.3.23 Dental Unit meets the general requirements of dental treatment machine.
YY/T1043-2004 "" in 5.
3.3.24 Dental Unit to meets the requirements of "dental treatment machine" YY/T1043-2004
with failed safe device for 5.3.1.
3.3.25 treatment machine to meet the requirements of "dental treatment machine"
YY/T1043-2004 with voltage limiting for 5.3.6
3.4 Appearance and Structure
3.4.1 Equipment configuration should be regular, smooth surface, no obvious bump, scratches,
and burrs.
3.4.2 Dental chair headrest, backrest, cushion, cushion piece shape should be smooth,
uniform color and no crack.
3.4.3 Switch should be flexible, stable to operation, solid installation and make sure without
