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Digital device for AC frequency measurement ShchCh72

Electrical Measuring Devices

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Key Highlights

Made in Russia - engineered for durability
Suitable for challenging environments
Lower cost of ownership than European alternatives
Bulk orders available with volume discounts
Documentation and customs clearance assistance provided

Description

The ShchCh72 device is designed to measure and convert the frequency of alternating current in single-phase electrical networks and other alternating current circuits into output unified DC signals and transfer the measured values via RS485 serial digital interface (Modbus RTU protocol).
The device is used in power engineering and other industrial areas for control of electrical parameters. The possibility of information exchange via RS485 interface, availability of output analogue DC signals and discrete outputs allow to use the device in automated systems of various purposes.
ShchCh72 is included in the State Register of measuring instruments of the Russian Federation No. 67465-17. Interverification interval is 10 years.

Specifications

Overall dimensions, mm 72x72x103 (with back cover), 72x72x75,6 (without cover)

Weight, kg, not more 0,4

LED indication Seven-segment indicators (4 or 5 indicators per unit) depending on the digit capacity according to the order; single LED indicators showing the interface operation, status of discrete outputs. Sign height: 10 mm (for the device with digitisation

Measuring range 10...9999 Hz, 10...15000 Hz

Input voltage range Unom = 150 V (22,5...180 V), Unom = 500 V (75...600 V)

Maximum reading range Digit capacity 4.0: from 0 to 9999; digit capacity 5.0: from 0 to 99999

Measurement time 0,1 ?

Basic error Frequency: ±0.05% (4.0 digit); ±0.01% (5.0 digit); analogue output: ±0.5%

Galvanic isolation of input and output circuits, power supply circuits Got it

RS485 communication interface Quantity: 0, 1, 2; Modbus RTU protocol

Analog outputs Quantity: 0, 1, 2; Ranges: 0...5 mA, 4...20 mA, 0...20 mA, 0...2.5...5 mA, 4...12...20 mA, 0...10...20 mA

Discrete outputs Quantity: 0, 1, 2; DC voltage 350 V, 200 mA or AC voltage 250 V, 200 mA

Power supply voltage 12VH - (12 +6/-3) VDC; 24VH - (24 +12/-6) VDC; 220VU - 85 to 264 VAC with frequency (50 ± 0.5) Hz or 120 to 370 VDC; 230V - 85 to 264 VAC with frequency (50 ± 0.5) Hz

Power consumption from the power supply circuit, not more 3,5 V-A for devices with supply voltage 12VH, 24VH; 6,0 V-A for devices with supply voltage 220VU, 230V

Reprogramming Via "Configurator" program (RS485 interface); via front panel buttons

Operating temperature range - 40 to + 70 °C (relative humidity 95 % at +35 °C)

Degree of protection IP50

Mounting In the shield

Inspection interval 10 years

Warranty period of operation 24 mos.

Average service life, at least 20 years

Average MTBF 200000 ?

Note: All specifications are provided by the manufacturer and may be subject to change. Please contact us to confirm the latest specifications before placing your order.

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Shipping Terms

FOB Novorossiysk, Russia CIF Available to major ports worldwide EXW Manufacturer's facility, Russia

Delivery Time

Sea freight: 30-60 days (depending on destination) Air freight: 14-21 days (for urgent orders)

Payment Methods

Letter of Credit (L/C) Wire Transfer (T/T) Escrow Services

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Digital device for AC frequency measurement ShchCh72

Key Highlights

Description

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