The NMS81 Proservo Tank Gauge (STG) is an intelligent tank gauge for high accuracy liquid level measurement and is suited for both custody transfer and inventory management applications employing the latest microprocessor technology.Specifications
Accuracy
+/-0.4 mm for (+/- 0.016 in)
(Under reference condition, according to OIML R85)
Net Weight
30kg (66.1 lb)
Enclosure Materials
Electrical compartment: aluminum
Drum chamber: 316/316L
Rated IP66/68, NEMA Type 4x/6P enclosure
Pressure Rating
Suitable for atmospheric and high pressure applications up to 25 bar/2.5 MPa/362 psi
Cable Entry
NPT, Metric, BSP (G) class threads
Power Requirements
High voltage type: 85 to 264 VAC, 50/ 60 Hz, 28.8 VA
Low voltage type: In preparation
Operating (Liquid) Temperature
-200 to +200°C (-328 to 392°F)
Ambient Temperature
Device: -40 to +60°C (-40 to +140°F)
Display Module: -20 to +70°C (-4 to +158°F)
Approvals
FM, ATEX, IEC Ex, or NEPSI
Display (LCD)
Four line, white background lighting, switches to red for device errors
Language selection: English, German, Japanese
Programming
Local display; operation via the local display is possible without opening the
device
Configuration software (e.g. DeviceCare); connected via:
HART
Service port (CDI) with optional Commubox FXA291
Standard Range
28m with 316L measuring wire
Level Accuracy
+/-0.4 mm for (+/- 0.015 in)
(Under reference condition, according to OIML R85)
Interface Level
+/-2 mm (+/-0.08) (Difference of product densities 0.100 g/cm3 (6.25lb/ft3))
Spot & Profile Density
+/-0.003 g/cm³ (Under reference condition, according to OIML R85)
Medium Density
0.430 to 2.000 g/cm³ (27 to 125 lb/ft3)
Medium Density Difference
0.1 g/cm³ (6.24 lb/ft3)
Viscosity
0 to 5 000 mPsOptions
Flange Type
ASME or DIN. Refer to order code for full selection.
Wire Material and Optional Ranges
16 m (53.33 ft): PFA > 316L; 0.4 mm (0.016 in)
22 m (73.33 ft): AlloyC276; 0.2 mm (0.008 in)
28 m (93.33 ft), 36 m (120 ft), and 47 m (154.2 ft): 316L; 0.15 mm (0.006 in)
Wire Protection
PTFE coated Steel
PFTE coated Steel 316L
AlloyC276
Displacer Material
Stainless steel 316L, AlloyC, or PTFE
Displacer Diameter
30…50mm (dependent on application)
Optional 70…110mm
Primary Outputs
Modbus RS485
V1
4-20mA HART Ex d/XP, RTD input
+ 4-20mA HART Ex i/IS, RTD input
Secondary I/O Analog
1 x “Ex d/XP 4-20mA HART + RTD input”
2 x “Ex d/XP 4-20mA HART + RTD input”
