© Siemens AG 2015 Level Measurement Continuous level measurement - Ultrasonic controllers SITRANS LU AO ■ Overview ■ Technical specifications Mode of operation Input Communications Data from SITRANS LU10 Transmission rate 4 800 bits/s Voltage ± 20 mA bipolar current loop Polarization Non-polarized Max. load 1 receiving unit Output Analog outputs 10 analog outputs, programmable from SITRANS LU10 0 or 4 ... 20 mA, isolated ± 20 mA bipolar current loop • Max. load • Resolution 4 Input and transmission 750 Ω 0.1 % Rated operating conditions The SITRANS LU AO Analog Output Module provides remote analog output for the measurement points of the SITRANS LU10 level monitor. ■ Benefits • Analog outputs can be up to 1 500 m (5 000 ft) from the SITRANS LU 10 • Analog outputs can be per transducer and/or average of 2 or more Ambient conditions • Ambient temperature for enclosure • Location • Installation category • Pollution degree Design Weight 2 kg (4.4 lb) Material (enclosure) Polycarbonate Degree of protection • Cable connection Type 4X/NEMA 4X/IP65 2 copper conductors, twisted, with foil shield/drain wire, 300 V 0.5 ... 0.75 mm² (22 ... 18 AWG) Copper conductor according to local requirements, rated 250 V 5 A ■ Application The operation of the SITRANS LU AO is programmed via the SITRANS LU10. The only on-board settings are for bank selection and output testing. The SITRANS LU AO can provide up to 10 analog outputs (each sharing a common negative bus which is electrically isolated from ground). -20 ... +50 °C (-5 ... +122 °F) Indoor/outdoor II 4 • Electrical connection and relay connection Power supply 100/115/200/230 V AC ± 15 %, 50/60 Hz, 15 VA Displays and controls 1 LED for display of voltage/ communications state Certificates and approvals CE, FM, CSAUS/C , RCM Selection and Ordering data Article No. SITRANS LU AO Provides remote analog output for the measurement points of the SITRANS LU10 level monitor. Approvals: CSAUS/C, FM, CE, RCM 7ML5810-1A Operating Instructions English 7ML1998-5CE01 German Note: Operating Instructions should be ordered as a separate line item on the order. 7ML1998-5CE31 This device is shipped with the Siemens Milltronics manual DVD containing the Quick Start and Operating Instructions library. Accessories Sun Shield, 304 stainless steel 4/168 Siemens FI 01 · June 2015 7ML1930-1GA © Siemens AG 2015 Level Measurement Continuous level measurement - Ultrasonic controllers SITRANS LU AO ■ Dimensional drawings 209 (8.2) 16 (0.6) 91 (3.6) Lid screws (6 places) 172 (6.8) 267 (10.5) 285 (11.2) 4 SITRANS LU AO Mounting holes (accessed under lid) 4.3 mm (0.17 inch) diameter 4 places Lid Suitable location for conduit entrances Enclosure Mounting screw (by customer) SITRANS LU AO, dimensions in mm (inch) ■ Schematics 230 V 200 V OFF Switch is shown in OFF position. Select appropriate voltage. 115 V 100 V See note 1 mA output spare Bi-polar Receiver 1 2 3 SW3 See note 2 4 + 1_ 5 6 7 mA output + 2_ 8 9 + 3_ + mA output 4_ + 5_ mA output + 6_ + 7_ mA output + 8_ + 9_ + 10_ 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 L2 /N L1 30 31 32 See note 3 Isolated 0/4 ... 20 mA out, 750 Ω load max. (typical of 10) 100/115/200/230 V AC 50/60 Hz select voltage via switch Notes: 1. SITRANS LU AO receiver input is non-polarized. 2. Refer to associated application device instruction manual for wiring detail. Check that the communication parameter P740 (SITRANS LU10) is ON. 3. SITRANS LU AO interconnecting cable shield should be grounded at SITRANS LU10 only. Insulate shields at junctions to prevent inadvertent grounding. Maximum individual loop length is 3 000 m (10 000 ft). SITRANS LU AO connections Siemens FI 01 · June 2015 4/169