© Siemens AG 2016 Process Protection Acoustic sensors for material flow monitoring SITRANS AS100 acoustic sensor ■ Overview ■ Application SITRANS AS100 detects changes in high frequency sound waves from equipment and materials in motion. It detects and reacts instantly to changes in solids flow to warn of blockages, product absence, or equipment failure such as burst filter bags. This allows an operator to take early preventative action and avoid costly damage. Common applications include pellets, powders and most bulk solids in pipes, chutes, vibratory feeders, pneumatic conveyors or aerated gravity flow systems. Operating with a SITRANS CU02 control unit, the system detects conditions of high flow, low flow or no flow. It can be added to a control loop via a 4 to 20 mA output. Two relays are fully programmable and independent of each other and can be used to operate an alarm or control device. SITRANS AS100 is an acoustic sensor used for solids flow detection. ■ Benefits 6 • • • • With no moving parts and a type 304 or 303 stainless steel enclosure sealed against dust and moisture, this non-invasive unit requires little or no maintenance. With a dual operating range, the sensor offers an exceptionally wide range of application capabilities. • Key applications: pipes, chutes, vibratory feeders, aerated gravity flow systems, burst filter bag detection Non-invasive Screw in, bolt on, weld, or bond in place Analog output High and low sensitivity range of operation ■ Design Clearance hole Insert mounting post through hole in device being monitored and fasten with customersupplied washers and nut. SITRANS AS100 mounting 6/10 Siemens FI 01 · 2016 Drill and tap Screw mounting post into threaded hole in device being monitored. Extension tab Screw sensor into threaded hole of tab, and fasten onto device being monitored. Mounting disc Screw sensor into disc, after welding or bonding disc onto device being monitored. © Siemens AG 2016 Process Protection Acoustic sensors for material flow monitoring SITRANS AS100 acoustic sensor ■ Technical specifications Mode of Operation Operating principle Acoustic sensing of high frequency emissions caused by impact or friction Typical application • Detects burst filter bags in dust collection systems • Detects material being conveyed in pneumatic conveyor lines • Route confirmation in chute work Model Standard Standard operating temperature range Extended Extended operating temperature range Operation Relative sensitivity 0.5 %/ºC of reading, average over the operating range Outputs Analog, 0.08 ... 10 V DC nominal, 100 k minimum load impedance Rated operating conditions Amb. temperature for enclosure • Standard • Extended -20 ... +80 °C (-4 ... +176 °F) • -40 ... +125 °C (-40 ... +257 °F) (CE only) • -30 ... +120 °C (-22 ... +248 °F) option Design Weight 0.4 kg (1 lb) Enclosure: 304 (1.4301) stainless steel [303 stainless steel (1.4305) on Class II version, aluminum 231 on 2GD version] Degree of protection IP68 (waterproof) • Extended Article No. SITRANS AS100 Acoustic Sensor An acoustic sensor used for solids flow detection. 777 0 7 7 MH 7 5 6 0 - Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Sensor Standard temperature range [-20 ... +80 °C (-4 ... +176 °F)]1) Extended temperature range [-40 ... +125 °C (-40 ... +257 °F)2) Extended temperature range [-30 ... +120 °C (-22 ... +248 °F)]3) 1 3 4 Cable Length 4 m (13.12 ft) Sensor Mounting None Mounting disk Mounting tab Approvals CE, RCM CSA/FM Class II Div.1, Group E, F, and G (includes ½" NPT female fitting) CSA Class II, Div. 1, Group E, F, and G (includes ½" NPT female fitting) CE, RCM, FM/CSA Class II, Div. 1, Group E, F and G, ATEX II 3D (includes M20 female fitting) ATEX II 2GD, c/w cable gland4) A A B C 1 3 4 5 6 1) Enclosure Cable • Standard Selection and Ordering data 4 m (13 ft) cable, PVC jacketed, 3 twisted pairs, 24 AWG (0.25 mm2), shielded 4 m (13 ft) cable, thermoplastic elastomer jacketed, 6 conductor, 24 AWG (0.25 mm2) conductor, shielded Power supply 20 ... 30 V DC, 18 mA (typical) Certificates and approvals CE, RCM CSA/FM Class II, Div. 1, Group E, F, and G (optional), ATEX II 2GD (optional), ATEX II 3D (optional), EAC Available with approval options 1, 3, 5, and 6 only Available with approval option 1 only Available with approval option 4 only 4) Available with sensor option 1 only and sensor mounting option A only 2) 3) Selection and Ordering data Order code Further designs Please add "-Z" to Article No. and specify Order code(s). Manufacturer’s test certificate: According to EN 10204-2.2 C11 Acrylic coated, stainless steel tag [12 x 45 mm (0.5 x 1.75 inch)]: Measuring-point number/ identification (max. 16 characters), specify in plain text Y17 Operating Instructions Article No. English A5E31952194 German A5E31990912 Note: The operating instructions should be ordered as a separate item on the order. All literature is available to download for free, in a range of languages, at http://www.siemens.com/ processinstrumentation/documentation This device is shipped with the Siemens Level and Weighing manual DVD containing ATEX Quick Starts and operating instructions. Spare Parts Mounting tab 7MH7723-1AA Mounting disk 7MH7723-1AB ½" NPT adapter kit for standard temperature range sensor, not Class II approved 7MH7723-1BW M20 adapter kit for standard temperature range sensor, not Class II or ATEX approved 7MH7723-1BV ½" NPT adapter kit for extended temperature range sensor, not Class II approved Note: Adapter kits are not CSA Class II approved 7MH7723-1BX We can offer shorter delivery times for configurations designated with the Quick Ship Symbol . For details see page 9/5 in the appendix. Siemens FI 01 · 2016 6/11 6 © Siemens AG 2016 Process Protection Acoustic sensors for material flow monitoring SITRANS AS100 acoustic sensor ■ Dimensional drawings SITRANS AS100 (ST and ET versions) SITRANS AS100 (class II rated ST and ET versions) 6 x 24 AWG cable 6 x 24 AWG cable 32 (1.3) 82 (3.2) 36 (1.4) 17 (0.7) Mounting post, 17A/F nut and M10 thread 44 (1.8) 44 (1.8) 8 (0.3) 67 (2.7) 36 (1.4) 8 (0.3) ½" NPT female conduit fitting (M20 fitting for ATEX version) Mounting post, 17A/F nut and M10 thread SITRANS AS100, dimensions in mm (inch) Cable entry (2) M20 X 1.5 Accessories Extension tab - bolt on (304 stainless steel) 10 (0.4) 6 60 (2.36) SITRANS AS100 mounting hole M10 thread 30 (1.2) Bolt hole, 14 (0.55) Sensor cable and connector 60 (2.36) 75 (2.95) 15 (0.6) 15 (0.6) 135 (5.32) 85 (3.3) Mounting disc - bonded or welded (304 stainless steel) Ø 30 (1.2) 15 (0.6) 120 Ø (4.72) SITRANS AS100 mounting hole M10 thread SITRANS AS100 accessories, dimensions in mm (inch) 6/12 Siemens FI 01 · 2016 120 ± 5 (4.72 ± .2) Enclosure SITRANS AS100 (2D, 2G, XP version), dimensions in mm (inch) © Siemens AG 2016 Process Protection Acoustic sensors for material flow monitoring SITRANS AS100 acoustic sensor ■ Schematics Standard temperature range Red Blk Grn Blk Wht Blk + Vsup: 20 ... 30 V DC - supply input Or* + Vsens: - analog output 0.08 ... 10 V DC nominal Shield, tied to Sensor casing * Sensor range selection High sensitivity range = red and green to Vsup+ Low sensitivity range = red to Vsup+, green to Vsup- Extended temperature range Red Blk Org Grn Yel Brw + Vsup: 20 ... 30 V DC - supply input Or* + Vsens: - analog output shield, tied to Sensor casing 0.08 ... 10 V DC nominal * Sensor range selection High sensitivity range = red and orange to Vsup+ Low sensitivity range = red to Vsup+, orange to Vsup- 6 Interconnection The longer the cable, the more susceptible it is to noise and earth loops. It is therefore recommended to use cable with heavy gauge conductors and good RF/electrical shielding (copper braid rather than drain and foil). A proper junction box close to the sensor is an ideal location not only to extend the cable but also to configure the wiring for high or low sensitivity range operation. The following table provides a guideline for suitable wire gauges where distances are considerable. Max. distance between sensor and supply (24 V or Control Unit). AWG Wire size mm mm 2 Distance meters feet 24 7 x 0.20 0.25 500 22 7 x 0.25 0.35 800 2 600 20 10 x 0.25 0.5 1 200 3 900 1 600 SITRANS AS100 connections Siemens FI 01 · 2016 6/13