7ML19985EF01.2 - Siemens Документационный файл (EN)

Instruction Manual April 2004 LVDT CARD milltronics

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Safety Guidelines Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment. These warning notices are accompanied by a clarification of the level of caution to be observed. Qualified Personnel This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and operate this equipment in accordance with established safety practices and standards. Warning: This product can only function properly and safely if it is correctly transported, stored, installed, set up, operated, and maintained. Note:

Always use product in accordance with specifications. MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc. Contact SMPI Technical Publications at the following address: Technical Publications Siemens Milltronics Process Instruments Inc. 1954 Technology Drive, P.O. Box 4225 Peterborough, Ontario, Canada, K9J 7B1 Email: techpubs@siemens-milltronics.com For the library of SMPI instruction manuals, visit our Web site: www.siemens-milltronics.com © Siemens Milltronics Process Instruments Inc. 2004 Copyright Siemens Milltronics Process Disclaimer of Liability Instruments Inc. 2004.

All Rights Reserved This document is available in bound version and in electronic version. We encourage users to purchase authorized bound manuals, or to view electronic versions as designed and authored by Siemens Milltronics Process Instruments Inc. Siemens Milltronics Process Instruments Inc. will not be responsible for the contents of partial or whole reproductions of either bound or electronic versions. While we have verified the contents of this manual for agreement with the instrumentation described, variations remain possible. Thus we cannot guarantee full agreement. The contents of this manual are regularly reviewed and corrections are included in subsequent editions.

We welcome all suggestions for improvement. Technical data subject to change.

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Output:

Specifications Power: • ±5 V dc (typically from a Milltronics integrator) Ambient Temperature: • -40 to 50 o C (-40 to 122 o F) Input: • 0 to 1.0 Vac from LVDT based belt scale or solids flow meter Output: • 0 to 50m Vdc to Milltronics BW 100 or BW 500/SF 500 (maximum 300 m (1000 ft) separation between Conditioner Card and Integrator). • Accuracy: 0.1% of range Enclosure: • General Purpose Type 4/Nema 4 Approvals: • CE Cable: • LVDT Conditioner Card to Integrator: Belden 8404, 4 conductor, shielded 20 AWG or equivalent, 150m (500 ft) max. Belden 9260, 6 conductor, shielded 20 AWG or equivalent, 300 m (1000 ft) max. • LVDT to LVDT Conditioner Card (CT connection not required):

Belden 8404, 4 conductor, shielded 20 AWG or equivalent, 300 m (1000 ft) max. 7ML19985EF01 LVDT Conditioner Card– INSTRUCTION MANUAL Page 1

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Connection to Milltronics BW 100

The LVDT Conditioner Card The LVDT (Linear Variable Differential Transformer) Conditioner Card is an ancillary piece of equipment. The LVDT Conditioner Card provides all the complex circuitry required to allow the Milltronics BW 100 or BW 500 to interface with a position transducer (LVDT) based scale. It also allows the SF 500 to interface with a position transducer (LVDT) based solids flowmeter. General Operation The Milltronics BW 100 or BW 500/SF 500 supplies the excitation for the LVDT Conditioner Card, which in turn supplies the excitation for the LVDT. In belt scale operations the LVDT signal is proportional to material loading.

The LVDT signal is converted to a 0-50mVdc signal then applied to the Load Cell A input of the Milltronics BW 100 or BW 500 and used with the speed signal to produce an integral rate signal. In solids flowmeter applications, the LVDT signal is proportional to the material flow rate. The LVDT signal is converted to a 0-50mV dc signal then applied to Load Cell A input of the Milltronics SF 500 and used to produce an integral rate signal. Interconnection Connection to Milltronics BW 100 Milltronics LVDT Conditioner Card LVDT INTEGRATOR S I G E X C + E X C - C O M C. T.

S I G - S H L D E X C + / C O M E X C - S I G + S H L D 20 17 4 3 maximum cable run, LVDT to conditioner, 300 m (1000 ft) - 17 1 - - BW 100 integrator - + SIG B SIG B SIG A 19 3 18 2 + + SENS SENS EXC * CNST SPD + SIG A 4 5 SHLD EXC 20 21 + + COM SIG 7 6 RX1 TX1 TX2 22 23 EXC 8 9 24 Page 2 LVDT Conditioner Card – INSTRUCTION MANUAL 7ML19985EF01

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