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Commissioning – NORD Drivesystems B2000 User Manual

Page 29

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4. Commissioning

www.nord.com B2000-GB-0413

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Figure 4-2: Activating the automatic lubricant dispenser with standard motor mounting

4.3 Temperature measurement

The details of the ATEX temperature class or the maximum surface temperature are based on
normal installation conditions (See Section 3.6). Even small changes to the installation
conditions can have a significant effect on the temperature of the gear unit.

For the measurement, a normal temperature measuring device is required, with a measurement
range from 0°C to 130°C and a precision of at least ± 4°C and which enables the measurement
of the surface temperature and the temperature of the air. Temperature measurement
procedure:

1. Allow the gear unit to run at maximum speed under maximum load for approx. 4 hours.

2. After it has warmed up, measure the temperature of the surface of the gear unit housing

Tgm immediately next to the temperature label (See Section 3.14).

3. Measure the temperature of the air Tum in the immediate vicinity of the gear unit.

 The measured air temperature Tum is within the permissible range stated on the rating plate.
 The measured temperature of the surface of the gear unit housing Tgm is below 121°C and

the temperature sticker has not turned black. (See Figure 4-3)

Danger!

On commissioning, a surface temperature measurement of the gear unit must be made
under maximum load.

(This does not apply to gear units which are labelled as temperature class T1 – T3 or a
maximum surface temperature of 200°C in the last line of the rating plate.)

Danger!

The gear unit must be shut down and Getriebebau NORD must be consulted if any of
the following criteria do not apply:

Attention!

Screw in the activation screw until the lug breaks off
before commissioning the gear unit.

Dispensing time: 12 Months

Month

Activation date

Year

1 2 3 4 5 6 7 8 9 10 11 12 99 00 01 02 03