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Liquid Level Systems

...specialists in liquid level measurements and control

Series 500

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