Nouvag 5052 Operating Instructions

Operating instructions
EN
Contra angle 20:1 with LED

Safety measures

• The maximum permitted torque of the drive of this contra angle is 7.5 Ncm (risk of damage)!
• The operation of the contra angle is only permitted on dental units, which correspond to the medical device directive!
• Always ensure the correct operating conditions and cooling functions!
• Check the contra angle for damage and loose parts prior to use (e.g. press button)!
• Do not touch the soft tissue with the LED (risk of burnings)!
• Do not use the contra angle as light sensor!
• Do not look directly into the optic outlet!
• The contra angle is not suitable for use in potentially explosive atmospheres or with potentially explosive mixtures of anaestetic
substances containing oxygen or nitrous oxide!
• Prior to initial use lubricate the contra angle and sterilize all included parts!
• Do not assemble or remove contra angle during operation, change burr only with motor switched off!
Symbols
Conform to EU
standards

Technical Data

Article No.
Transmission ratio
Coupling motor side, standard according to
Shank-Ø (mm)
Min. clamping length (fixed)
Approved length of burrs (mm)
Max. working diameter of rotating instruments
* According to the manufacturer's data of rotating instruments in connection with the working speed

Operation

Autoclave at 135°C
5052 Chucking system
20:1 Max. torque at bur (Ncm)
ISO 3964 Max. motor speed (rpm)
2.35 Max. torque from motor (Ncm)
click into place Weight (g)
45 Length (mm)
* **
Use burrs of hardened steel (> 50 HRC, > 520 HV) if the torque is greater than 30 Ncm.
Disassemble/assemble contra angle
1. Hold contra angle head
2. Gently press sheat
head and release by twisting it.
3. Pull knee out of the contra angle head.
4. Pull middle gear
Disassemble/assemble cooling unit
1. For internal burr cooling put the coolant pipe
through the burr release press button.
2. Attach the clip to the contra angles head.
3. Press coolant pipe
4. Connect the tubes of the Y-manifold
the coolant pipes of the clip.
5. Attach the tube set to the Y-manifold (not
shown on the picture).
Couple contra angle to motor
1. Press contra angle
until it snaps into place.
2. Check fitting with slight counter motion.
Article No. 31603, V03/17
Suitable for thermal
disinfection
Hexagon
70**
50,000
7.5
100
110
with one hand.
against contra angle
out of knee.
into the slot of the clip.
with
firmly onto motor