7 Installing the Instrument
C76IB003EN-E
27
7.5
Switching the Instrument On/Off
1. Connect the power inlet of the DMA M to the mains using the power cord.
2. To switch the instrument on, use the power switch at the rear.
The green LED on the front side of the DMA M indicates that the power is on.
3. Wait at least 15 minutes for the temperature to stabilize.
After turning on the power, the instrument needs approx. 15 minutes for
temperature equilibration and internal temperature adjustments. During this
time "temp. equilibration" is displayed.
4. To switch the instrument off, use the power switch.
7.6
Instrument Settings and First Checks
After installing the hardware, set date and time (see Chapter 10.1.1). To check the
validity of the factory adjustment, perform an air check and a water check.
The instrument has a factory adjustment over the whole temperature and
viscosity range. However, during transport, the density adjustment can be
influenced.
To perform first checks
1. Wait at least 15 minutes after a reboot for the temperature to stabilize.
WARNING
High voltage at parts of the instrument can cause serious injuries or death.
•
Only connect the instruments to the mains via protective earthing.
•
Never connect the instrument to the mains via protective separation or
protective insulation.
•
Make sure that the non-fused earth conductor of the power cord is
connected to earth.
NOTICE
Before switching the instrument on, make sure that the correct line voltage is
available (AC 100 to 240 V, 50 to 60 Hz). If large voltage fluctuations are to be
expected, we recommend using a constant voltage source (UPS).
NOTICE
Do not turn off the instrument during the night. This allows the measuring cell
to achieve long term temperature stability.