Xylem YSI Alyza IQ NH4, Руководство по эксплуатации

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Alyza IQ NH4 Overview
11
ba76202d02 05/2020
The measuring unit ready for operation (11) includes the following components
– Front cover with light duct for the status LED of the measuring unit
– Control unit (ACS)
– Locking device of the MultiPort valve (
MPV
)
– MultiPort valve (
MPV
)
– Photometer unit
– Chemicals (ChemBags)
Temperature
control
For correct measurements, the operating temperature of the Alyza IQ is con-
trolled inside the housing in the following areas.
Thus the Alyza IQ with the door closed is suitable for all-season operation in the
open. The temperature control is automatically active when the Alyza IQ is con-
nected to the power supply and the switch at the switch box is in the ON position.
Range Temperature control
Housing inside frost free
Measuring unit 20 °C (68 °F)
Photometer unit 45 °C (113 °F)
Where there is a chance of frost, the intake lines and return lines
must be provided with heat tracing in order to maintain the sample
feed.