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Digital AC Frequency Measurement Device SHCH72 for Accurate Frequency Measurement

Electrical Measuring Devices

Manufacturer: ELECTROPRIBOR OJSC

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FOB, CIF & EXW terms available

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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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Delivery & Payment

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 AC Frequency Measurement Device SHCH72 for Accurate Frequency Measurement

Description

Specifications

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