DYNAgaurd GM

Name: DYNAgaurd GM
Brand: DYNA
Availability: InStock

The broken bag detector DYNAguard GM is used for the detection of filter malfunction e.g. a broken bag or an installation error.

The DYNAguard technology is based on a modified triboelectric principle detecting particles interacting with the sensing rod and such particles just passing the rod. Build up on the rod surface will not be detected, only moving particles generate a flow rate proportional signal which is monitored by the electronics.

Three electronics versions are available with analogue (GM20), relay (GM01) or transistor (GM02) output. Adaptation is done under normal conditions by switches and potentiometer, DYNAguard’s alarm level (GM01, GM02) can be set above this background. Signal damping is selectable by the user.

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Measures: Dust, Level, Moisture, Solids

Industries: Animal Feed, Manufacturing, Pharma, Wood

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Product Description
Technical Data
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Dust Detector

Electrostatic / triboelectric
Compact design
Detection of only moving material - not influenced by deposits
Relay and 4...20mA version
High temperature version (200°C / 392°F)
Sensitivity 0.1 mg/m3 (all dust types)
Flow displayed by LED-bar (relay version)
Reliable, longterm stable, maintenance free
Low cost

More info

The broken bag detector DYNAguard GM is used for the detection of filter malfunction e.g. a broken bag or an installation error.The DYNAguard technology is based on a modified triboelectric principle detecting particles interacting with the sensing rod and such particles just passing the rod. Build up on the rod surface will not be detected, only moving particles generate a flow rate proportional signal which is monitored by the electronics. Three electronics versions are available with analogue (GM20), relay (GM01) or transistor (GM02) output. Adaptation is done under normal conditions by switches and potentiometer, DYNAguard's alarm level (GM01, GM02) can be set above this background. Signal damping is selectable by the user.

The length of the sensor rod should be 1/3 to 2/3 of the duct diameter, 800mm maximum.

The broken bag detector is installed on the clean gas side downstream the filter at a metal duct by welding on of a thread bush boring through the duct wall and screwing in DYNAguard. Upstream and downstream the sensor at least three duct diameters should be straight without any fittings like valves or dampers.

Comissioning is simple and requires no tools or speciali equipment.

Proven technology for reliable dust measurement.

Parameter	Specification
Material – Housing	Stainless steel 1.4305 (AISI 303)
Sensor Rod (standard)	Stainless steel 1.4571 (AISI 316 Ti)
Isolation (standard)	Polyamide (PA)
Sealing (standard)	NBR
Ambient Temperature	-20 °C to +70 °C (-4 °F to +158 °F)
Ingress Protection	IP67 (EN 60529)
EMC	According to EN 61326-1
Process Sensitivity	0.1 mg/m³
Process Temperature	Standard: max. +90 °C (+194 °F) Optional: +130 °C / +200 °C
Process Pressure	Max. 6 bar (84 psi) Optional: 10 bar (145 psi)
Output – DYNAguard GM01	Relay: max. 48 V AC/DC, 1A High/low switchable
Output – DYNAguard GM02	Transistor: galvanically isolated Max. 31 V DC, 15 mA High/low switchable
Output – DYNAguard GM20	4–20 mA, galvanically isolated Load < 500 Ω
Supply Voltage – GM01/02	17–31 V DC, max. 60 mA
Supply Voltage – GM20	17–31 V DC, max. 90 mA
Adjustment – Sensitivity	1–180,000
Adjustment – Damping	0–10 s (GM01/02), 0–180 s (GM20)
Switch Point	1–10 (GM01/02)
Zero Set	4 mA (GM20)