Mettler Toledo MX Operations Instructions Page 106

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Section 14: Technical data and accessories
106
14.2 Model-specific data
Technical data (limit values)
Model UMX2 UMX5 MX5
Comparator
Maximum load 2.1 g 5.1 g 5.1 g
Maximum load, fine range
Readability 0.0001 mg 0.0001 mg 0.001 mg
Readability, fine range
Repeatability (sd) at full load
1)
0.00025 mg 0.0004 mg 0.0009 mg
Repeatability (sd) (at gross load)
1)
0.00025 mg (0.2 g) 0.00025 mg (0.2 g) 0.0008 mg (0.2 g)
Linearity 0.001 mg 0.004 mg 0.004 mg
Eccentric load deviation at 1/2 maximum capacity
2)
0.0025 mg 0.005 mg 0.005 mg
Sensitivity offset
3)
1.5x10
-5
7.0x10
-6
7.0x10
-6
Sensitivity temperatur drift
4)
0.0001%/°C 0.0001%/°C 0.0001%/°C
Sensitivity stability
5)
0.0001%/a 0.0001%/a 0.0001%/a
Weighing time typical
6)
16 s 18 s 16 s
Interface update rate 7 /s 7 /s 7 /s
Balance dimensions (WxDxH) (mm) 128x287x113 128x287x113 128x287x113
Control unit dimensions (WxDxH) (mm) 224x366x94 224x366x94 224x366x94
Usable height of draft shield 55 mm 55 mm 55 mm
Weighing pan dimensions (WxD) (mm) ø 16 ø 16 ø 27
Typical data for determination of the measurement uncertainty
Repeatability (sd) typical 0.0002 mg + 2.5x10
-8
• R
gr
0.0002 mg + 3x10
-8
• R
gr
0.0005 mg + 4x10
-8
• R
gr
Repeatability (sd) in fine range typical
7)
——
Differential nonlinearity (sd) typical 1x10
-14
• R
nt
8x10
-14
• R
nt
8x10
-14
• R
nt
Diff. eccentric load deviation (sd) typical 2.5x10
-7
• R
nt
3x10
-7
• R
nt
3x10
-7
• R
nt
Sensitivity offset (sd) typical
3)
3x10
-6
• R
nt
1.5x10
-6
• R
nt
1.5x10
-6
• R
nt
Minimum weight
(
according to USP
) typical
8)
0.6 mg + 7.5x10
-5
• R
gr
0.6 mg + 9x10
-5
• R
gr
1.5 mg + 1.2x10
-4
• R
gr
Minimum weight (according to USP) in fine range typical
7)
——
Minimum weight
(@ U=1&, 2 sd) typical 0.04 mg + 5x10
-6
• R
gr
0.04 mg + 6x10
-6
• R
gr
0.1 mg + 8x10
-6
• R
gr
Minimum weight
(@ U=1&, 2 sd)
in fine range typical
7)
——
1)
Valid for compact ojects
2)
According to OIML R76
3)
After adjustment with built-in reference weight
4)
In the temperature range 10...30 °C
5)
Sensitivity drift/year after putting into operation for the first time, with the FACT self-calibration function activated
6)
Includes sample handling and setting time
7)
With DeltaRange models: Fine range starting at zero gross load
sd = Standard deviation
Rgr = Gross weight
Rnt = Net weight (sample weight)
a = Year (annum)
8)
The minimum weight can be improved by the following measures:
- Selecting suitable weighing parameters
- Choosing a better location
- Using smaller taring containers
- Using an inner draft shield (AX)
The information contained in this document has been carefully prepared and represents the most up-to-date status. Data shown as typical are reference values
for calculation of the expected measurement uncertainty. The actual measurement performance may be affected negatively or positively by the place of use and/
or the settings.
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