ProMinent DULCODOS Ammonia, Operating Instructions Manual, Page: 11 / 52

Sound pressure level LpA < 70 dB according to EN 3746
The system is provided with the following protection equipment,
which prevents large quantities of ammonia from escaping, or the
resulting ignition of an ammonia water-air mixture:
n
The level switch in the metering vessel prevents overflowing.
n
The system is designed so that the transfer from the storage
tank to the metering vessel is via a vapour recovery line.
n
The aeration and venting of the system is through an active
carbon filter, which absorbs the escaping ammonia gas.
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The lid of the dosing tank protects the user from ammonia gas.
It needs to be secured by a seal when operating with ammonia.
n
The level switches in the metering vessel and in the dosing
tank are designed to be explosion-proof and intrinsically safe “i”
with an appropriate explosion-proof intrinsically safe “i” switch
amplifier.
Further recommendations, the implementation of which is however
outside our area of responsibility:
n
Place the dosing tank in a collecting pan.
Affix workplace labels in line with the current regulations.
They might look like this in accordance with the German regula‐
tions governing printing of the operating instructions:
Warning of caustic substances
Use eye protection
Use safety gloves
Ensure that the warning label is always fitted and legible.
Sound pressure level
Protective equipment
Warning labels
Safety chapter
11