Toshiba LQ500 Installation Manual

Also see for Density (Consistency) Meter LQ500: User guide Operation manual

EJL- 106JDensity (Consistency) Meter LQ500IntroductionThe LQ500 density (%TS, consistency) meter usesmicrowave phase shift technology to determineconcentrations of solids in the material to be measuredflowing through pipes. It can perform a stable andrealtime density (%TS, consistency) measurementbecause this technology is not affected by flow velocityalong with fluid color, and also is not easily affected bycontaminants and low process pressure rate. As theLQ500 has no moving parts, it is reliable and virtuallymaintenance free.Since the output of the LQ500 is theoretically linear, itcan be applied to a wide range of density (%TS,consistency) measurement.The LQ500 requires a full pipe to measure thedensity (%TS, consistency). If certain amount ofbubbles are obviously mixed in measuring media,there are possibilities of causing measuring error.Contact Toshiba before installation in thefollowing cases:(a) When it is installed at the discharge of a pump.(b) When installation is horizontal, and unfilledcondition occurs inside the pipe.(c) A process where the pipe becomes unfilledwhen the operation is stopped.Cable for power supply(Detector/converter)Ground resistance100 ohm or lessDensity (consistency)measurement output4-20mACable for communication(Detector/converter)AC power supplyDI / DOExternal Sync controlcontact inputFigure 1. LQ500 Configuration DiagramFigure 2. LQ500 Density (%TS, consistency)Meter■ Standard Configuration• Density (%TS, Consistency) Meter: 1 set(Detector and converter separate mounted)• Accessories: 1 set (see Table 1 below)Table 1. Standard AccessoriesItems Specifications QuantityPower supplycableBetween detector andconverter (*1)10 m(32.8 ft)CommunicationcableBetween detector andconverter (*1)10 m(32.8 ft)Fuse 2A(T), 250 V(glass tube, 5.2 dia. x 20 mm) 2Document Instruction manual 1Note 1: Need to prepare a power supply cable for the LQ500.Refer to the section of cable specifications at theoverall specifications in detail.