Moisture meter for concrete mixer
FIZEPR-SW100.17.X

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FIZEPR-SW100 moisture meters for bulk and paste-like materials

Moisture meters for crude oil, petroleum products and other liquid materials; for steam-water environment measurements

Our customers

From the date of establishing in 1993, Design Bureau “Fizelektronpribor” has implemented more than 80 process automation projects at various Russian industrial plants. A lot of plants including foreign ones use our instruments.

Among our customers:

Company news

Moisture meter for drywall and other sheet materials on conveyors

December 5 2022 г.

FIZEPR-SW100.15.1 is a moisture meter designed for non-contact measurements of moisture content in drywall, fiberboard, chipboard, medium density fiberboard plates and other sheet materials on a conveyor line. This moisture meter can also be used to measure moisture content in timber.

The moisture meter sensor has an operating temperature of +180ºС, so it can be used in drying chambers.

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Measurement of moisture in crude oil with a high gas volume content

October 18 2020 г.

For all existing crude oil moisture meters, the metering error increases when gas appears in oil. For most of them, when gas volume content exceeds 2 - 5%, the metering error becomes unacceptable.

A solution has been found specifically for FIZEPR-SW100 series in-line moisture meters to ensure accurate crude oil moisture measurement even with a high gas volume content. The solution is shown in the figure.

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CONCENTRATION ANALYZERS FIZEPR-SW100 OF ACIDS, ALKALIS AND SALTS

March 15 2019 г.

The new series analyzers designed for measuring concentrations of salt, acid and alkali solutions is put into production. Analyzers can also be used as moisture meters, but they can also measure materials with high electrical conductivity, such as anthracite, sewage sludge, ion-exchange resins (ion-exchange polymer), etc. Analyzers are used for in-line control of materials as well as for measurements in tanks and laboratory studies.

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Specifications

The moisture meter is made according to VIGT.415210.100TU specifications on the base of a set of design documents VIGT.415210.100.

Parameter	Value
Moisture measurement range - mass water content, W, % (see note 1)	0 to 100
Acceptable absolute error limits Δ, mass water content, % (Δ is calculated according to the formulae depending on W, where W – is the result of moisture measurement in percent– see note 2)	Δ= 0,035+0,05·W
Temperature measurement range, °С	-40… 150
Temperature range of moisture meter calibration, °С (see note 3)	+5…40
Range of sensor operational temperatures, °С	-20…80
Range of electronic unit operational temperatures, °С	-20…80
Measurement period, sec	0,2
Output interface: digital current, mА	RS485 Modbus RTU 4-20
Electronic unit supply voltage, V nominal allowable	24 18...36
Current consumption, mA, not more than	200
Sensor overall dimensions, mm	Ø 108х120
Sensor weight, kg	3,5
Electronic unit dimensions, mm	255 x 170 x 60
Electronic unit weight, kg	2
Enclosure protection rating of electronic unit according to IEC 60529	IP54
Enclosure protection rating of sensor according to IEC 60529	IP67
Length of communications cable between sensor and electronic unit, m (see note 4)	1,5…2
Maximum allowable length of cable transmitting RS485 digital signal from the electronic unit to an external control device (controller, computer), not less than, m	1000
Maximum allowable length of cable transmitting 4-20mА analog signal from the electronic unit to an external indicating device, not less than, m	100
Operating mode	continuous

Notes

For dry and high-flow concrete-mixing machines, water content does not exceed 14%; therefore maximum moisture value of 20% (ratio of water weight to the total weight of the concrete mix) is set in the calibration characteristics for moisture meters installed in concrete-mixing machines.
Calculating by the following mathematical equations (formulae) gives the following values of the absolute error Δ:

Moisture range W Acceptable absolute error limits Δ

up to 10%

10…20%

20…50%

50…100% 0,5%

1%

2,5%

5%
Using the supplied software by the method described in the operating manual, the user can adjust moisture meter calibration data for the enhancement of moisture measurement temperature range.
The required cable length between the sensor and the electronic unit is agreed when ordering.