Ametek WDG-V, Руководство пользователя

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PN 9000-133-VE, Rev U
Temperature Sensors
There are two tightly controlled temperature zones in the WDG-V. The Oxygen
Cell Temperature and the combustible block temperature (WDG-VCM units
only). (On Oxygen-only units the box temperature is controlled with an RTD
mounted on the aspirator block.)
Component Function
Cell Temperature The Oxygen cell is controlled to 680 °C. The cell temperature is
measured by dual, Type K Thermocouples. Dual Thermocouples
are used for self check of the cell temperature. The Thermocou-
ples are collocated in a single assembly. There is no distinction
between the two Thermocouples as they are effectively at the
same location in the assembly.
Combustibles/
Box Temperature
The combustible block/box temperature is controlled to 225 °C.
This temperature is measured by 100 ohm platinum RTD. The
RTD is embedded in the combustible block. On Oxygen-only
units, the RTD is mounted on the aspirator block. All internal
plumbing components are maintained above 200 °C.
Heaters
There are two main heaters in the WDG-V, the cell heater and box heater. In
WDG-VCM units, an additional heater is used for fine temperature control of
the combustible block.
Component Function
Cell Heater The Oxygen Cell heater is a 300 W coil heater encompassing the
cell housing and providing precision heat to the oxygen cell.
Box Heater The box heater is a 350 W cartridge heater located in the alu-
minum heater block at the bottom of the aspirator. This heater
provides the heat for the enclosure to maintain all plumbing
components above 200 °C.
The combustible heater is a 50 W heater used for precise tem-
perature control of the combustible block.
Overview
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