Uv Lamp Replacement - Mettler Toledo 5000TOCi Guia De Inicio Rapido

13 Service and Maintenance continued

UV Lamp Replacement

WARNING: UV RADIATION HAZARD
Apply power to UV lamp only when installed in housing in accordance with
operation manual. DO NOT remove UV lamp from housing unless power is off.
Always protect eyes and skin from direct exposure to UV light.
Mettler-Toledo Thornton recommends replacement of the UV lamp inside the 5000TOCi Sensor
after 4500 hours of operation, or 6 months of continuous use, not to exceed one year. This is a
simple procedure that requires only a few minutes to complete. The following steps explain the
proper procedure for the UV lamp replacement. Refer to the illustration below.
DO NOT
OPEN WHEN
UV LAMP
IS ON
UV LAMP
REPLACEMENT COVER
AC
POWER
TRANSMITTER
CONNECTION
CAUTION: Use of a UV lamp other than those provided by Mettler-Toledo
Thornton specifically for use with the 5000TOCi Sensor will affect performance
and void the warranty of this product.
1. At the sensor, turn off the UV lamp by pressing the lamp control button (UV lamp ON LED
will turn off). If the LED does not turn off, check that the Sensor Key Lock is in the off position
in the M800. Refer to
manual.
2. Once power to the UV lamp is off, open the front cover of the sensor enclosure with
the front cover tool.
3. Remove the side cover labeled 'UV LAMP REPLACEMENT COVER' on the left side of
the sensor enclosure. Use a large-bladed flat-head screwdriver and turn the cover
counter clockwise to loosen and unscrew the cover.
4. Disconnect the power cable to the UV lamp. This connector is located on the backsi-
de of the front cover, above the circuit board.
5. Loosen but do not remove the UV lamp holding screw located on the left side of the
oxidation chamber.
6. Slide the cable of the UV lamp through the side opening of the enclosure and gently
slide the UV lamp out of the oxidation chamber assembly (stainless steel cylinder).
Be careful not to let the UV lamp hit the quartz glass coil inside the chamber.
LAMP
HIGH VOLTAGE
DISCONNECT
POWER FOR
SERVICING
C
\Parameter Settings: Sensor Key Lock function in the operation
OXIDATION CHAMBER
COIL
5000TOCi
HOLDING SCREW
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