Neurotherm NT-500 Technical guide

NT-500™

Technical Support Guide

For use by qualified company approved

Technicians

Version 2.0 October 2007

INTRODUCTION

The NT-500 is designed to offer the full range of features required to perform
radiofrequency denervation

The front panel has been ergonomically designed and allows the clinician direct
manipulation of the controls. Each functional effect of the device is defined within its
own discrete area.

The NT-500 is designed for safe use in the Doctors office, Surgery Centre or Hospital
environment.

Linear bar displays are used to give immediate visual interpretation of the
temperature, RF current and RF Voltage, and digital displays are used for impedance,
stimulate voltage and lesion time.

The NT-500 has full electronic interlocking to prevent accidental switching to lesion
power and stimulation voltage.

Note: ­The Machine has been factory set and should not be adjusted except by Approved
technicians authorized by the company.

The Machine has been designed to work with NT-500 thermocouple probes only. The
use of probes from other manufacturers could give serious errors in the temperature
reading and may compromise the safety of the patient, and would negate the warranty.

Regularly inspect the NT-500 accessories in particular the electrode cables should be
checked for possible damage to the insulation.

Please note the warning information in the NT-500 User Manual before attempting to
carry out any service or maintenance to the machine.

Any Maintenance or Service must only be carried out by Qualified
Technicians Approved by the Company.

Version 2.0 October 2007

Basic Fault Diagnosis

1) No power to the NT-500

Check the power inlet cable is connected to the wall socket and switched on.

If the cable has fused power plug, check the fuse in the power plug.

IEC Fuse carrier

2) No power to the NT-500

Check the fuses in the IEC mains power inlet fuse carrier
For 110 volt units the fuse should be 2 X 2 amp fused on the Live and Neutral
Type T2H Bussman

For 230 volt units the fuse should be 2 X 1 amp fused on the Live and Neutral
Type T1H Bussman

If a fuse is faulty change the fuses
Only use this type of fuses as a replacement on this machine

Internal Fuses

Picture of NT-500 fuse card

Version 2.0 October 2007