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Density (Consistency) Meter LQ500

Introduction

The LQ500 density (%TS, consistency) meter uses
microwave phase shift technology to determine
concentrations of solids in the material to be measured
flowing through pipes. It can perform a stable and
realtime density (%TS, consistency) measurement
because this technology is not affected by flow velocity
along with fluid color, and also is not easily affected by
contaminants and low process pressure rate. As the
LQ500 has no moving parts, it is reliable and virtually
maintenance free.

Since the output of the LQ500 is theoretically linear, it
can be applied to a wide range of density (%TS,
consistency) measurement.

<Notice>

The LQ500 requires a full pipe to measure the
density (%TS, consistency). If certain amount of
bubbles are obviously mixed in measuring media,
there are possibilities of causing measuring error.
Contact Toshiba before installation in the
following cases:

<Possibility of unfilled condition>

(a) When it is installed at the discharge of a pump.

(b) When installation is horizontal, and unfilled

condition occurs inside the pipe.

(c) A process where the pipe becomes unfilled

when the operation is stopped.

Cable for power supply
(Detector/converter)

Ground resistance
100 ohm or less

Density (consistency)
measurement output
4-20mA

Cable for communication
(Detector/converter)

AC power supply

DI / DO

External Sync control
contact input

Figure

1. LQ500

Configuration

Diagram

Figure 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 Accessories

Items

Specifications

Quantity

Power supply

cable

Between detector and

converter (*1)

10 m

(32.8 ft)

Communication

cable

Between detector and

converter (*1)

10 m

(32.8 ft)

Fuse

2A(T), 250 V

(glass tube, 5.2 dia. x 20 mm)

Document

Instruction manual

Note 1: Need to prepare a power supply cable for the LQ500.

Refer to the section of cable specifications at the
overall specifications in detail.

Содержание Density (Consistency) Meter LQ500

Страница 1: ...ollowing cases Possibility of unfilled condition a When it is installed at the discharge of a pump b When installation is horizontal and unfilled condition occurs inside the pipe c A process where the pipe becomes unfilled when the operation is stopped Cable for power supply Detector converter Ground resistance 100 ohm or less Density consistency measurement output 4 20mA Cable for communication D...

Страница 2: ... reagent Electric resolution Meter size 50 mm 2 80 mm 3 to 300 mm 12 Electric resolution 0 002 TS 0 001 TS Note 1 Above values are the results of computing ability in the phase measurements of the converter Note 2 Density TS consistency determination resolution for sample reagent Meter size 50 mm 2 80 mm 3 to 300 mm 12 Density TS consistency determination repeatability 0 1 TS 0 05 TS The density T...

Страница 3: ...ximum working pressure ANSI Class 150 1 MPa 150 psi DIN10 and BS10 1 MPa 10 bar DIN 16 1 6 MPa 16 bar JIS 10K 1 MPa 10 kgf cm2 Note Each product was passed a hydraulic test under twice pressure rate for 15 minutes toward the specification Fluid temperature 0 to 100 deg C 32 to 212 deg F without freezing and bubbles conditions Allowable fluid conductivity Meter size Fluid conductivity 50 mm 2 20 mS...

Страница 4: ...itable for your CIP or not before cleaning 2 The smoothness inside the pipe on this material is Type Meter size Smoothness Standard type 50 to 200 mm 2 to 8 No buffing 250 300 mm 10 12 Buffing 150 Option type 50 to 300 mm 2 to 12 Buffing 150 3 State the wetted materials when you choose these options 4 The materials of them are changed for abrasive applications Need to choose the specification code...

Страница 5: ...density TS consistency measurement Contact open Stops density TS consistency measurement Density multiplier switching signal In order to achieve selecting up to 4 kinds of liquid concentration measurement independently as maximum Specification Two voltage signals described below are required Input voltage H level 20 to 30 Vdc L level 2 Vdc or less Input resistance Approx 3k ohm Internal conductivi...

Страница 6: ...ation N when the external synchronized operation starts LQ500 measure the phase of microwave and calculate the density TS from the phase changes Because the phase is limited from 0 degree to 360 degrees LQ500 use the rotation N when the phase is over 360degree But the range of density is wide over the 360 degree LQ500 may not know the number of the rotation N when the pump starts If the density is...

Страница 7: ...x 44 97 lb Approx 42 200 8 320 12 6 290 11 4 300 11 8 Approx 50 Approx 52 Approx 54 119 lb Approx 48 250 10 300 11 8 315 12 4 350 13 8 Approx 65 Approx 68 Approx 68 150 lb Approx 64 300 12 360 14 2 340 13 4 350 13 8 Approx 78 Approx 85 Approx 99 218 lb Approx 76 110 4 3 119 4 7 Detector Converter communication cable port Steel pipe 50A 2 360 14 2 390 15 4 234 9 2 Density signal output port Contact...

Страница 8: ...t measure accurately The range of measurable density less than 1 second c 1 000 Meter Size 50 80 100 150 200 250 300 Density TS 16 8 10 5 8 4 5 6 4 2 3 4 2 8 500 19 7 600 23 6 Maintenance space Back Front Detector Converter RF part A 500 mm 19 7 maintenance space is also needed above unit 500 19 7 600 23 6 600 23 6 500 19 7 Maintenance space Unit mm inch Figure 5 Clearance space Piping Precautions...

Страница 9: ...d radio waves will leak out However the amount is about equal to PHS and one tenth of mobile phones 16 For both horizontal and vertical piping systems install a support stand under the density meter with bolts put through the installation holes M8 size on the bottom of the density meter Then install the support stand together with the density meter to a solid ground or wall Bolts four M8 bolts are...

Страница 10: ... Screws at the terminals are needed to tighten with 1 2 N m torque 1 4 N m is maximum 10 Do not turn on the power supply under the uninstalled condition 11 Each cable in the communication cable and power supply cable between detector and converter has banded marks for each terminal Connect them correctly without any mismatches L1 L2 Tx TX Rx Rx SG FG 24V 0V FG Ec Ec FG Tx Tx Rx Rx SG FG 24V 0V FG ...

Страница 11: ...nction is used By connecting the cable lead of the optional BF100 configurator to the density TS consistency measurement output you can operate the LQ500 from remote places 1 Make sure the load resistance of 4 20mAdc line of output is between 240 and 750 ohm and the load capacitance is 0 25µF maximum 2 The BF100 s cable lead can be connected to the LQ500 anywhere along the current output line For ...

Страница 12: ...pe for abrasive application Note 2 Cable length between detector RF part converter A 10 m 32 8 ft standard B 20 m 65 6 ft C 30 m 98 4 ft D 40 m 131 2 ft E 50 m 164 ft X None Note 2 Note 1 The differences between standard type are RTD sensor and Applicator window Note 2 Toshiba recommends to using our specified cable Table 5 Type Specification Code BF100 Hand held Terminal Model Specification Code ...

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