3 WMF Weigh Modules
3.1 Specifications
Parameter
Maximum capacity
Readability
Measurement properties
Specification temperatures
Specification humidity
Limit values
Repeatability
(at nominal load)
Linearity deviation
Eccentricity deviation
(test load)
Sensitivity offset
Sensitivity temperature drift
Sensitivity stability
Typical values
Repeatability
Eccentricity deviation
(test load)
Sensitivity offset
Minimum weight
(according to USP)
Minimum weight
(U = 1 %, 2 sd)
Dynamics
Signal processing output rate
Settling time
1)
2)
3)
4)
Rnt
sd
WMF
Nominal
Nominal
1)
Sd
Sd
Sd
1)
(test load)
3)
4)
Typical
Typical
1)
(test load)
Typical
Max.
2)
Typical
applies only after adjustment at nominal capacity with an OIML E2 weight
with a tolerance of 0.1 % of the applied load
weighing tests (loading and unloading) according to OIML R76 A.5.3
span stability test according to OIML R76 B4, applies only after internal adjustment every
8 hours
net weight (of sample)
standard deviation
WMF204C
220 g
0.1 mg
+10 ... +30 °C
20 ... 80 % rH
0.13 mg
0.4 mg
1 mg (100 g)
0.8 mg (150 g)
0.00015 % / °C x Rnt
0.0025 % x Rnt
0.08 mg (200 g)
0.4 mg (200 g)
0.5 mg (150 g)
160 mg
16 mg
92/s
< 0.4 s
WMF303C
320 g
1 mg
1 mg
2 mg
2 mg (100 g)
2.0 mg (300 g)
0.00015 % / °C x Rnt
0.0025 % x Rnt
0.4 mg (300 g)
1 mg (300 g)
0.8 mg (300 g)
800 mg
80 mg
WMF Weigh Modules
5