© Siemens AG 2016 Process Protection Motion sensors SITRANS WM100 motion sensor ■ Overview Max. 100 (4) SITRANS WM100 is a heavy-duty zero-speed alarm switch. This non-contacting unit provides cost-effective equipment protection even in the harshest conditions. ■ Benefits • Up to 100 mm (4 inch) gap between SITRANS WM100 and targets • Rugged, low maintenance suitable for tough environments • 1 SPDT Form C relay contact • Provides cost-effective protection • Visual indication of target triggered pulse SITRANS WM100 mounting, dimensions in mm (inch) ■ Technical specifications Mode of operation Measuring principle Disruption of magnetic field by ferrous target Typical application Monitors absence or presence of motion in harsh conditions Output Contact 1 SPDT Form C dry relay contact, rated 5 A at 250 V AC, fail-safe operation Time delay Start up: 10 ... 14 seconds (5 ... 7 seconds with 12 ppm jumper installed) Zero Speed (selected via a common jumper) • 5 seconds ± 1 (minimum speed 10 ... 15 ppm) or • 10 seconds ± 2 (minimum speed 5 ... 7.5 ppm) ■ Application This rugged unit is impervious to dust, dirt, build-up and moisture and is ideal for such primary industries as mining, aggregate, and cement. Operating where other systems are prone to failure, the non-contacting design eliminates the need for lubricating, cleaning and part replacement. Downtime and clean-up expenses associated with conveying equipment failure are reduced by the SITRANS WM100. It alarms to minimize spillage, prevent extensive damage or even fire caused by belt slippage at the head pulley, and warns against conveyor malfunction. The SITRANS WM100 has built-in selectable start delays and 1 Form C relay contact. With an aluminum body, it operates from -40 to +60 °C (-40 to +140 °F). • Key Applications: tail pulleys, driven pulleys, motor shaft sensing, screw conveyor flights, bucket elevators Rated operating conditions Operating temperature Probe body Aluminum Process mounting 2" NPSL Connection box Aluminum, ¾" NPT conduit entrance, 5 screw terminals plus grounding terminal for electrical connection, max. 12 AWG (3.30 mm2) wire size ■ Design Mounting The WM100 probe should be mounted, using the supplied mounting flange, onto a vibration-free structure. The gap between the probe and the target should be sufficient such that there is no danger of the target damaging the probe. The maximum allowable gap is 100 mm (4 inch) from the face of the target to the face of the probe for 4.5 x 4.5 mm (3/16 x 3/16 inch) keyway. The WM100 is sensitive to lateral disturbances to its magnetic field. If the WM100 is responding to motion from an interfering target, move the WM100 or install a ferrous plate (steel) as a shield between the WM100 and the interfering target. Where possible, the probe should be mounted such that the cable inlet is pointing downward to avoid accumulation of condensation in the casing. Connection of the probe should be made via flexible conduit for easier removal or adjustment of the probe. -40 ... +60 °C (-40 ... +140 °F) Design Gasketing Neoprene Display Red LED for verification of pulses Enclosure rating Type NEMA 4x, 6, IP67 Dynamic range Minimum 6 or 12 pulses per minute Maximum 3 000 pulses per minute Shipping weight 2 kg (4.4 lb) Power supply • 115 V AC/50 ... 60 Hz, 7 VA • 230 V AC/50 ... 60 Hz, 7 VA • ± 10 % of rated voltage Certificates and approvals CSAUS/C, CE, RCM Siemens FI 01 · 2016 6/25 6 © Siemens AG 2016 Process Protection Motion sensors SITRANS WM100 motion sensor Selection and Ordering data Article No. Selection and Ordering data SITRANS WM100 A heavy-duty zero-speed alarm switch that does not require a controller. 7MH7158 - Further designs 0 7A 0 0 Please add "-Z" to Article No. and specify Order code(s). Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Model 115 V AC 230 V AC Manufacturer's Test Certificate: According to EN 10204-2.2 C11 Acrylic coated, stainless steel tag [13 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 7ML1998-5MW01 German 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 the complete operating instructions library. 7ML1998-5MW31 Locknut 7MH7723-1CR Mounting flange 7MH7723-1CS Motion cable gland adaptor kit 7MH7723-1JN ■ Dimensional drawings Dimensions Detail A 6 dia. hole for 1/4...20 bolt on 114 (4.5) BCD, 4 places Cap, aluminum 226 (8.90) 197 (7.76) 127 (5.00) o.d. 133 (5.25) Circuit card 60 (2.38) 6 A B Order code 2" NPSL 25 (1) Mounting 10...32 screw x 4 3/4" NPT Conduit entrance Cap gasket, neoprene Locknut, plated Casing gasket, neoprene Casing, aluminum 2" NPSL, aluminum probe body 6 dia. hole for 1/4...20 bolt or drill and tap on 114 (4.5) BCD, 4 places Mounting flange, see detail A 95 (3.75) dia. probe clearance hole SITRANS WM100 mounting, dimensions in mm (inch) 6/26 Siemens FI 01 · 2016 © Siemens AG 2016 Process Protection Motion sensors SITRANS WM100 motion sensor ■ Schematics Detection indicator LED Terminal block for customer connection Note 1 Note 2 Note 3 Terminal circuit card 1TB L2/N L1 NC COM NO 5 4 3 2 1 115/230 VAC 50/60 HZ 2.5 VA 5SEC/ 12PPM 8 7 Ground terminal for customer connection 6 SITRANS WM100 wiring Notes: 1. Dry contacts shown in de-energized (alarm or shelf) state. 2. SITRANS WM100 is manufactured for either 115 or 230 V AC operation. Check WM100 nameplate for applicable voltage. Correct voltage must be supplied. Voltages lower than specified will result in an inoperative condition. Voltages higher than specified will severely damage unit. 3. For 5 second time delay and a minimum 12 ppm range, connect jumper across terminals 7 and 8. Without a jumper, the default is a 10 second time delay and a minimum 6 ppm range. Siemens FI 01 · 2016 6/27