Lamy Rheology FIRST PLUS LR, Руководство пользователя

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The spindle L are delivered complete, while the R discs must be screwed on the R1-6 axis
(Ref 111000).
When measuring, it is strongly recommended to heat the 600ml beaker. You can use either a
thermostatic bath or the EVA LR PLUS temperature control system.
Place the viscometer on its support (see section 1.5). Fill the beaker with 500 ml of product to
be tested, taking care not to introduce air bubbles.
Place it in a bath (if you have one) for a sufficient time to reach the desired temperature.
If the product contains volatile or hygroscopic material, cover the beaker for the duration of the
operation.
You must choose the measuring spindle according to the viscosity you wish to measure:
- For measurement of a low viscosity product, choose ASTM L-2 and run the unit at
a high speed, such as 100 rpm.
-
For the measurement of a high viscosity product, choose ASTM R7 and run the
machine at low speed, for example 1 rpm.
Place the measuring head in the highest position (use screw on aluminium arm as wrote in
section 1.2) and insert the measuring system with the bayonet coupling in the motor shaft (see
section 3.1). Go to “Measure” menu (see section 2.2.2), select speed and measuring system
and make a zero.
Then zero is finished, device ask you to immerge spindle in sample. Use handle to manipulate
the device (see section 1.2), release screw on aluminium arm and go down to immerge the
mobile in the product. Beware of air bubbles under the disk!
Adjust the position of the viscometer in the sample to immerge the mobile to the predefined
mark (the lowest for discs # 2 -6, the highest for disc # 1), so as to immerge the Pt100 probe
at least 3 mm (only for models equipped with a temperature probe integrated into the
measuring head. If an external temperature sensor is used, the liquid level must always be in