Available for Import
Digital device for AC frequency measurement ShchCh72
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Bulk pricing available
FOB, CIF & EXW terms available
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
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.
Technical 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.
Shipping & Payment Information
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)
- Production lead time: 30-90 days (depending on order size)
Payment Methods
- Letter of Credit (L/C)
- Wire Transfer (T/T)
- Escrow Services
Order Minimums
- We work with orders starting from 1 container
- You can mix different products in one container
- Volume discounts available for larger orders
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Business Hours
We're available to assist you during the following hours:
- Monday - Friday: 9:00 AM - 6:00 PM (GMT+4)
- Saturday: 10:00 AM - 2:00 PM (GMT+4)
- Sunday: Closed
Our WhatsApp support is available outside business hours for urgent inquiries.
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