Contents Of The Packaging; Proper Use; System Description; Function - Igema DLT2 Installation And Operating Instructions Manual

2. Contents of the packaging

1 controller DLT2 or DLT3
1 set of installation and operating instructions

3. Proper use

The DLT2/DLT3 continuous level transmitter is intended for use in combination with the EC 8
level probe as level transmitter for the output of an output current proportional to the fill level
in the boiler (4 mA .. 20 mA).
At the DLT3 an overfill protection according to EN 12953-6 can be activated.
The requirements of EU Directive 2014/68/EU, of the standards EN 61326-1, EN 61010-1,
EN13445-1, EN 12952-11 and EN 12953-9 have been taken into account.
The DLT2/DLT3 has been specially developed for use in steam boilers or condensate tanks.
Measuring the water level is carried out via the EC 8 probe (see corresponding assembly and
operating instructions) which is fitted in the boiler or mounting flange.
The device does not have a safety function and must not be used for safety-related functions
(limiter).
The DLT2/DLT3, as also the EC 8 probe, carries out periodic self-testing.
4.

System Description

4.1 Function

The DLT2/DLT3 continuous level transmitter works in conjunction with the IGEMA EC 8 level
probe on the basis of the capacitive fill level method of measurement.
The capacity of the condenser from measuring electrode, measuring electrode protective
tube and the stacked dielectric formed of fluid and steam changes with each change of the
fluid level in the tank. The IGEMA EC 8 measuring probe carries out the measurement of this
capacity continuously by means of a high-frequency measurement signal and transfers the
result to the DLT2/DLT3.
The DLT2/DLT3 evaluates the measurement signal and outputs the analogue current signal
4 mA .. 20 mA corresponding to the level.
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