2 Required Accessories; 2.2 Reference Weights; 2.3 Water Tanks; 3 Operating Conditions - Sartorius YP50K Betriebsanleitung

2 Required Accessories

2.1 Balance

2.2 Reference Weights

2.3 Water Tanks

3 Operating Conditions

The requirements for a F1 mass laboratory must be met for
the installation of the balance and the carrying out of measure-
ments. The following conditions then apply:
Measurement room
Window
Lighting
Floor
Ambient air
Room temperature
Relative humidity
Sub-base
Personnel
Reference weights
Room temperature fluctuation
Horizontal temperature gradient 0.5 K/m
Vertical temperature gradient
Measurement uncertainty
of the temperature sensor (k = 2) 0.5 K
Relative humidity fluctuation
Measurement uncertainty
of the humidity sensor (k = 2)
Measurement uncertainty
of the pressure sensor (k = 2)
Acceleration maxima
Ground floor north side or
basement
Allowed
Low heat build-up
Antistatic
Dust-free, low drift
20°C ± 1°C
40% to 60%
Low vibration
Trained
OIML R111, Class F
1
± 1.5 K in 4 h
± 2.0 K in 24 h
1.0 K/m
± 15% in 4 h
5%
3 mbar
–2
5 · 10-3 mms at < 3 Hz
–2
5 · 10-2 mms at 3 Hz to 30 Hz
–2
0 · 15 mms at > 30 Hz
5 5