Wmc Weigh Modules; Unpacking The Weigh Module - Mettler Toledo WMC Serie Manual De Usuario

3 WMC Weigh Modules

3.1 Specifications
Parameter
Maximum capacity
Readability
Measurement properties
Specification temperatures
Specification humidity
Limit values
Repeatability
Repeatability (at low load)
Linearity deviation
Eccentricity deviation 2 mm offset
Sensitivity offset (test load)
Sensitivity temperature drift
Sensitivity stability
Dynamics
Settling time
Interface update rate (max.)
sd = Standard deviation
Rg = Gross weight
r
1)
Applies only after adjustment at nominal capacity with an OIML E2 weight.
2)
Temperature range 10 ... 30 °C.
3)
The settling time is the time between when the object to be weighed is placed on the scale and a
stable signal is transmitted – this assumes optimal ambient conditions and optimal parameter
settings.

3.2 Unpacking the weigh module

The weigh unit and the electronic unit are each packed in separate cardboard boxes along with the
associated hardware and appropriate mounting materials. The boxes are labeled with their contents as
follows: "Weighing module," and "Electronic Unit". Both cardboard boxes are placed inside a large transport
box. The terminal must be ordered separately, and consequently it is supplied separately.
Unpacking the electronic unit and terminal:
Remove the top foam cushion, then remove the unit and the
hardware.
Unpacking the weigh unit:
Remove the grey foam cushion. Carefully remove the weigh unit
from the cushion and place it smoothly on a level surface.
6 WMC Weigh Modules​ ​
1)
(at nominal load) sd
sd
2)
3)
3 × sd
WMC25-SH WMC24-SH
21 g
0.01 mg
10 ... 30 °C
20 ... 80% rH
0.02 mg (20 g) 0.1 mg (20 g)
0.012 mg (5 g) 0.08 mg (5 g)
+/- 0.05 mg
0.12 mg (10 g) 0.4 mg (10 g)
-6
10×10 •R 20×10
nt
0.0002%/°C•R 0.0002%/°C•R
nt
0.0001%/a•R 0.0001%/a•R
nt
0.7 s
23 weight values per second (with terminal), 92 weight values per
second (without terminal)
Rn = Net weight (sample weight)
t
a = Year (annum)
WMC15-SH
21 g 11 g
0.1 mg 0.01 mg
0.02 mg (10 g)
0.012 mg (5 g)
± 0.2 mg ± 0.05 mg
0.12 mg (5 g)
-6
•R 15×10
nt
0.0002%/°C•R
nt
0.0001%/a•R
nt
0.6 s 0.6 s
Weigh Modules
-6
•R
nt
nt
nt