Pulsar Measurement

PulsarGuard 2001 Sand Sensor

Ultrasonic acoustic sensor for use by the oil and gas industry, used in conjunction with iSensys SandAlert sand monitoring system

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The Pulsar Guard 2001 sand sensor is an ultrasonic acoustic sensor that has been designed primarily for use by the oil and gas industry. It is used in conjunction with the iSensys SandAlert sand monitoring system.

The sand sensor is connected to the outside of the pipeline with a stainless steel band (no need to break into a pipe or interrupt service) and detects changes in the acoustic signature of flow within the pipe and converting that into a sand/solids impact rate. As the sand sensor monitors only a narrow frequency band, it is highly resistant to interference from background noise, fluid or gas flow.

The Pulsar Guard 2001 sand sensor is an intrinsically safe unit (ATEX EEx ia IIC T4) made from 316 stainless steel with environmental protection to IP68. It can be fitted to any pipe diameter and may be positioned up to 1,000 m (3,280 ft) away from the iSensys SandAlert Monitor using a standard instrument cable connection.

• Acoustic Intrinsically safe flow switch
• Clamp-on Sensor
• Intrinsically safe
• Use with the iSensys SandAlert Monitor

General Specifications
Spec:Description:
Dimensions118 mm L x 70 mm H x 65 mm W (4.65 in x 2.76 in x 2.56 in)
MaterialType 316 Stainless Steel (investment casting)
Cable Entry Detail1 x M20 Brass (fitted with EMC gland)
Relays3 Form “C” SPDT rated at 5 A at 240 V. Trip point from 0-100% of range
IP Rating (Electronics housing)IP68
Operating Temperature -20 °C to +80°C (-4 °F to +176 °F)
CE ApprovalEMC Approval to BS EN 50081-1:1992 for emissions, BS EN 50082-2: 1995 for immunity, BS EN 61010-11993 for low voltage directive
Hazardous AreaATEX II 1 G EEx is IIC T4 (Tamb= -20 °C to 80 °C). Certificate No. Sira 04ATEX2110
Analog Output0-5 V
Power Supply24 V DC via Galvanic or Zener Barrier
Current ConsumptionLess than 20mA
Shipping WeightNominal, 1.5 kg (3.3 lbs)