Performance Characteristics; Reference Operating Conditions; Measured Value Resolution; Maximum Measured Error - Endress+Hauser Proservo NMS81 Technical Information

Reference operating
conditions

Measured value resolution

Maximum measured error

Hysteresis

Repeatability

Linearity

28

Performance characteristics

According to OIML R85
Level and interface ≤ 0.1 mm (0.004 in)
Density
≤ 0.001 g/cm
Level
±0.4 mm (±0.015 in)
Interface
±2 mm (±0.08 in)
Tank bottom ±2 mm (±0.08 in)
Density
±0.003 g/cm
1) Under reference condition
2)
Difference of product densities 0.100 g/cm
3) Under reference condition
The following values are valid for a measuring distance up to 40 m (133.33 ft).
Ordering Weight and measure
feature 150 approval
ICR Standard version, w/o
calibration certificate
ICW Standard version, 3-point
calibration certificate
ICX Standard version, 5-point
calibration certificate
NTA Maximum performance,
NMi type approval acc.
OIML R85, API 3.1B, ISO
4622, factory calibration
certificate
NTC Custody transfer type
approval acc. NMi OIML
R85, API 3.1B, ISO4622,
factory calibration
certificate
PTA Maximum performance,
PTB type approval factory
calibration certificate
PTC Custody transfer type
approval per PTB, factory
calibration certificate
Within the specified accuracy (+/- 1 mm (0.039 in)) according to OIML R85 (2008)
It can be reduced by non hysteresis measurement mode.
0.1 mm (0.004 in)
Within maximum measured error
3
1)
2)
3 3)
3 3
(6.25 lb/ft )
Displacer (ordering feature 120)
1AC, 2AC, 3AC,
1AA, 2AA
4AC, 5AC
⌀30 mm ⌀50 mm
(1.18 in) (1.97 in)
Accuracy
±2.5 mm ±1 mm
(±0.1 in) (±0.04 in)
±2.5 mm ±1 mm
(±0.1 in) (±0.04 in)
±2.5 mm ±1 mm
(±0.1 in) (±0.04 in)
±0.6 mm
N/A
(±0.024 in)
±1 mm
N/A
(±0.04 in)
±0.6 mm
N/A
(±0.024 in)
±1 mm
N/A
(±0.04 in)
Proservo NMS81
1BE, 4AE 1BJ
⌀70 mm ⌀110 mm
(2.76 in) (4.33 in)
±1 mm ±1 mm
(±0.04 in) (±0.04 in)
±1 mm ±1 mm
(±0.04 in) (±0.04 in)
±1 mm ±1 mm
(±0.04 in) (±0.04 in)
±0.4 mm ±0.4 mm
(±0.016 in) (±0.016 in)
±1 mm ±1 mm
(±0.04 in) (±0.04 in)
±0.4 mm ±0.4 mm
(±0.016 in) (±0.016 in)
±1 mm ±1 mm
(±0.04 in) (±0.04 in)
Endress+Hauser