Service And Maintenance; Uv Lamp Replacement - Mettler Toledo 4000TOCe Guia De Inicio Rapido

13 Specifications continued
Sample Connections
Inlet connection
Outlet connection
Inlet Filter
Wetted parts
Wall Mount
Pipe Mount
Maximum Sensor Distance
* Readout in equivalent S/m ranges selectable at M300TOC
** Temperature above 70°C requires Sample Conditioning Coil (included)
*** For power plant cycle chemistry samples, pH may be adjusted by measurement after cation exchange.
**** Process pressure above 85 psig (5.9 bar) requires optional High Pressure Regulator p/n 58 091 552.
Specifications subject to change without notice.

14 Service and Maintenance

The 4000TOCe Sensor is designed to minimize service and maintenance. Therefore, nor-
mal operating wear and tear is negligible. This reduces the amount of consumable com-
ponents as well as the amount of time needed to maintain the sensor. Listed below are
instructions on how to perform simple periodic maintenance, which includes UV Lamp
change (every 4500 hours of operation), filter replacement (typically every 6 months),
and general cleaning.

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
4000TOCe 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
10-32 female threaded port (6' [2m] FDA compliant PTFE tubing supplied)
10-32 female threaded port (Fixed right angle 316SS drain tube provided)
316SS, inline 60 micron
316SS/Quartz/PEEK/Titanium/PTFE/EPDM/FFKM
Standard, mounting tabs provided
Optional, with pipe-mount bracket accessory for nominal pipe sizes 1" [2.5 cm]
300ft [91m]
LAMP
UV LAMP
REPLACEMENT COVER
AC HIGH VOLTAGE
POWER DISCONNECT
POWER FOR
SERVICING
TRANSMITTER
CONNECTION
OXIDATION CHAMBER
COIL
4000TOCe
HOLDING SCREW
13