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Liquid Level Systems

...specialists in liquid level measurements and control

Specifications

Measurement Characteristics

Pressure range
0...0.4mH2O to 0...2000mH2O
Overpressure
At least 2 times nominal value
Accuracy
± 0.25% FS
Hysteresis & Repeatability
± 0.05% FS
Long term stability
± 0.25% FS
Response time
25ms

Temperature Influence (in compensated range)

Zero
TC ± 0.20% FS
Span
TC ± 0.20% FS

Operating/Storage Temperature

External Mount
-40°C...120°C
Internal Mount
-40°C...120°C

Materials

Diaphragm/Port/Housing
Stainless Steel 316L
Cable
Polyurethane (vented)

Electrical

Supply voltage
8...28VDC (4...20mA)
Output - Analogue
4...20mA
Output - Digital
RS485
Insulation Resistance
100MΩ, 50VDC
Load Resistance
(U – 8V) / 0.02A (Ω)
Protected against reverse signal polarity

Oil Filling

Silicon Oil
Temperature range from -30°C to +125°C

Mounting Options

Model 510
External flange mount (typically DN25)
Model 520
Internal (submersible) running nut/boss connection
Model 530
Internal (submersible) pole mount
Model 540
External ¾" BSP male connection
Model 550
Internal (submersible) guide pipe

EMC

Influence of EMC
Less than 0.15% FS
Conformity
EN 61326

Intrinsic Safety

Explosion Protection
EEx ia IIC T6

Environmental

Vibrations
20g, 20...500Hz
Shocks
30g, 11ms

Protection Class

External Mount
IP 68
Internal Mount
IP 68

Physical Characteristics

Weight
200g