Accurate high-speed pulse signal isolation and transparent relay transmission are critical in modern industrial automation environments to prevent ground loop interference, voltage spikes, and signal attenuation across long-distance cable runs. Utilizing the advanced frequency pulse signal repeater and galvanic isolator series from NEWPWR, engineers can reliably condition 0.1 Hz to 100 kHz pulse trains originating from rotary encoders, turbine flowmeters, and proximity sensors. Beijing Zhongping Technology supports these mission-critical applications by supplying fully original isolation units backed by localized technical expertise.
Industrial automation systems frequently encounter severe electrical noise, ground potential differences, and impedance mismatches when transmitting high-frequency pulse trains from hazardous field instrumentation to safe-area controllers or high-speed counters. Signal degradation and waveform distortion can lead to severe counting errors, missing pulses, and unexpected system downtime. To resolve these engineering challenges, galvanic isolation combined with 1:1 frequency transparent transmission provides an effective architectural defense. By decoupling input circuits from output loops through robust electrical barriers, sensitive control hardware is safely protected against high-voltage transients while preserving precise duty cycles and edge sharpness across the entire 0.1 Hz to 100 kHz frequency spectrum.
Technical Specifications
NPFR-C1D: Power Supply: 18 ~ 60 V DC @ Standard Operation
NPFR-C1D: Input Signal: Frequency Pulse Signal 0.1 Hz ~ 100 kHz @ Standard Input
NPFR-C1D: Pulse Width: ≥ 5 μs @ Input Terminal
NPFR-C1D: Input Impedance: ≥ 10 kΩ @ Terminal Block
NPFR-C1D: Signal Trigger Low Level: 0 ~ 2 V @ Input Trigger
NPFR-C1D: Signal Trigger High Level: 4 ~ 30 V @ Input Trigger
NPFR-C1D: Distribution Voltage: 24 V DC, Output Voltage ≥ 22 V @ 20 mA Default
NPFR-C1D: Distribution Voltage 12: 12 V DC, Output Voltage ≥ 11 V @ 20 mA
NPFR-C1D: Collector Output High Level: VCC (≤ 30 V) @ Output Terminal
NPFR-C1D: Collector Output Low Level: ≤ 2 V @ Drive Current ≤ 10 mA
NPFR-C1D: Emitter Output High Level: VCC - 2 V @ Drive Current ≤ 10 mA
NPFR-C1D: Emitter Output Low Level: ≤ 0.5 V @ Drive Current ≤ 10 mA
NPFR-C1D: Logic Level Output High Level: 18 V ≤ VH ≤ 24 V @ Default Configuration
NPFR-C1D: Logic Level Output Low Level: VL ≤ 2 V @ Load Resistance ≥ 2 kΩ
NPFR-C1D: Working Power Consumption: 0.9 W @ 24 V DC Supply
NPFR-C1D: Electromagnetic Compatibility: IEC 61326-3-1 @ Industrial Environment
NPFR-C1D: Dielectric Strength: ≥ 1500 V AC @ Input / Output / Power Isolation
NPFR-C1D: Insulation Resistance: ≥ 100 MΩ @ Input / Output / Power Terminals
NPFR-C1D: Operating Temperature: -20 ℃ ~ +60 ℃ @ Standard Conditions
NPFR-C1D: Storage Temperature: -40 ℃ ~ +80 ℃ @ Non-Operating
NPFR-C1D: Connection Type: Screw Connection @ Terminal Interface
NPFR-C1D: Dimensions: Width 12.8 mm x Height 110 mm x Depth 117 mm @ DIN Rail Profile
NPFR-C1D: Mounting Type: DIN 35 mm Rail Mounting @ Control Cabinet
NPFR-C1D: Product Certifications: CE, FCC @ Compliance Standards
NPFR-C2D: Power Supply: 18 ~ 60 V DC @ Standard Operation
NPFR-C2D: Input Signal: Frequency Pulse Signal 0.1 Hz ~ 100 kHz @ Standard Input
NPFR-C2D: Pulse Width: ≥ 5 μs @ Input Terminal
NPFR-C2D: Input Impedance: ≥ 10 kΩ @ Terminal Block
NPFR-C2D: Signal Trigger Low Level: 0 ~ 2 V @ Input Trigger
NPFR-C2D: Signal Trigger High Level: 4 ~ 30 V @ Input Trigger
NPFR-C2D: Distribution Voltage: 24 V DC, Output Voltage ≥ 22 V @ 20 mA Default
NPFR-C2D: Distribution Voltage 12: 12 V DC, Output Voltage ≥ 11 V @ 20 mA
NPFR-C2D: Collector Output High Level: VCC (≤ 30 V) @ Output Terminal
NPFR-C2D: Collector Output Low Level: ≤ 2 V @ Drive Current ≤ 10 mA
NPFR-C2D: Emitter Output High Level: VCC - 2 V @ Drive Current ≤ 10 mA
NPFR-C2D: Emitter Output Low Level: ≤ 0.5 V @ Drive Current ≤ 10 mA
NPFR-C2D: Logic Level Output High Level: 18 V ≤ VH ≤ 24 V @ Default Configuration
NPFR-C2D: Logic Level Output Low Level: VL ≤ 2 V @ Load Resistance ≥ 2 kΩ
NPFR-C2D: Working Power Consumption: 1.8 W @ Dual Channel Load
NPFR-C2D: Electromagnetic Compatibility: IEC 61326-3-1 @ Industrial Environment
NPFR-C2D: Dielectric Strength: ≥ 1500 V AC @ Input / Output / Power Isolation
NPFR-C2D: Insulation Resistance: ≥ 100 MΩ @ Input / Output / Power Terminals
NPFR-C2D: Operating Temperature: -20 ℃ ~ +60 ℃ @ Standard Conditions
NPFR-C2D: Storage Temperature: -40 ℃ ~ +80 ℃ @ Non-Operating
NPFR-C2D: Connection Type: Screw Connection @ Terminal Interface
NPFR-C2D: Dimensions: Width 12.8 mm x Height 110 mm x Depth 117 mm @ DIN Rail Profile
NPFR-C2D: Mounting Type: DIN 35 mm Rail Mounting @ Control Cabinet
NPFR-C2D: Product Certifications: CE, FCC @ Compliance Standards
NPFR-H1D: Power Supply: 18 ~ 32 V DC @ Backplane Power Distribution
NPFR-H1D: Input Signal Frequency: 0 ~ 100 kHz @ Max Allowable Voltage 30 V
NPFR-H1D: Input Signal Three-Wire: PNP or NPN Input @ Frequency 0 ~ 10 kHz
NPFR-H1D: Input Signal NAMUR: Dry Contact or NAMUR Switch @ Frequency 0 ~ 10 kHz
NPFR-H1D: Sensor Distribution Voltage: 12 V or 24 V @ Current ≤ 20 mA
NPFR-H1D: NAMUR Distribution Voltage: Approx 8.2 V @ Short Circuit Current ~8 mA
NPFR-H1D: Collector Output High Level: VCC (≤ 30 V) @ Output Terminal
NPFR-H1D: Collector Output Low Level: ≤ 2 V @ Drive Current ≤ 10 mA
NPFR-H1D: Emitter Output High Level: VCC - 2 V @ Drive Current ≤ 10 mA
NPFR-H1D: Emitter Output Low Level: ≤ 0.5 V @ Drive Current ≤ 10 mA
NPFR-H1D: Logic Level Output High Level: 18 V ≤ VH ≤ 24 V @ Default Configuration
NPFR-H1D: Logic Level Output Low Level: VL ≤ 2 V @ Load Resistance ≥ 2 kΩ
NPFR-H1D: Working Power Consumption: 0.8 W @ Backplane Bus Supply
NPFR-H1D: Electromagnetic Compatibility: IEC 61326-3-1 @ Industrial Environment
NPFR-H1D: Dielectric Strength Input-Output: ≥ 1500 V AC @ Galvanic Isolation Barrier
NPFR-H1D: Dielectric Strength Power-Output: ≥ 500 V AC @ Power Isolation Barrier
NPFR-H1D: Insulation Resistance: ≥ 100 MΩ @ Terminal Separation
NPFR-H1D: Operating Temperature: -20 ℃ ~ +60 ℃ @ Standard Operation
NPFR-H1D: Storage Temperature: -40 ℃ ~ +80 ℃ @ Non-Operating
NPFR-H1D: Connection Type: Screw Connection @ Terminal Block
NPFR-H1D: Dimensions: Width 15.8 mm x Height 121.6 mm x Depth 104.8 mm @ Compact Enclosure
NPFR-H1D: Mounting Type: DIN 35 mm Rail Mounting @ Cabinet Integration
NPFR-H1D: Product Certifications: CE, FCC @ Compliance Standards
System Integration and Hardware Setup
Deploying frequency signal repeaters into industrial control cabinets requires meticulous attention to wiring practices, signal shielding, and physical grounding methodology. Shielded twisted-pair cables must be utilized for all pulse input and output channels, ensuring that cable shields are grounded consistently at one end to prevent ground loops and electromagnetic interference from variable frequency drives or high-power switching gear. Terminal connections on the NPFR series accept standard copper conductors secured via reliable screw clamp interfaces, maintaining low contact resistance under high-vibration conditions.
Proper physical spacing inside control panels ensures adequate heat dissipation across adjacent modules. DIN 35 mm rail mounting secures the compact 12.8 mm or 15.8 mm wide enclosures firmly, optimizing panel real estate while maintaining structural rigidity. Power distribution architecture should accommodate the wide 18 to 60 V DC range for standard terminal-powered variants or dedicated backplane supply rails for modular rack configurations. Comprehensive three-port isolation separating inputs, outputs, and power supplies eliminates common-mode voltage failures, protecting downstream PLC high-speed counter cards from destructive field surges.
Reliability and Environmental Durability
Industrial automation components must withstand harsh environmental conditions, temperature fluctuations, and continuous electrical stress without performance degradation. The NPFR series is engineered to operate reliably across a wide ambient temperature range from -20 ℃ to +60 ℃, with storage tolerances extending from -40 ℃ to +80 ℃. Advanced internal circuit layouts incorporate low-power dissipation architectures, limiting thermal stress on critical semiconductor junctions and achieving long operational life spans.
Electromagnetic compatibility complies strictly with IEC 61326-3-1 standards, ensuring robust immunity against radiated and conducted disturbances typical in heavy industrial manufacturing floors. High dielectric strength rated at 1500 V AC across isolation barriers, combined with insulation resistance exceeding 100 MΩ, guarantees long-term electrical safety and signal fidelity. Regular inspection of terminal screw torques and dust accumulation management inside enclosures further ensures high mean time between failures across continuous process control loops.
Selection Guidance and Alternative Options
Selecting the correct frequency pulse isolator requires careful evaluation of channel density, sensor excitation requirements, and physical power distribution preferences. For standard single-channel applications requiring independent 24 V DC terminal wiring, the primary model NPFR-C1D delivers exceptional performance with versatile logic level, collector, or emitter outputs. When system architecture demands duplicating a single pulse stream into two distinct control or monitoring systems, the dual-channel NPFR-C2D provides an ideal space-saving solution.
For high-density backplane-powered architectures or applications requiring specialized NAMUR proximity switch and three-wire transistor inputs, the NPFR-H1D model offers tailored flexibility. Beijing Zhongping Technology maintains a comprehensive inventory of original industrial automation components, ensuring that engineering teams receive expert cross-reference support, rapid quotation processing, and dependable technical consultation for all retrofit and greenfield projects.
Frequently Asked Questions (FAQ)
1. What are the stock availability and delivery timelines for urgent factory replacements?
Beijing Zhongping Technology maintains extensive warehouse inventories of core automation hardware, ensuring same-day dispatch and expedited shipping options to minimize critical plant downtime.
2. What warranty coverage and return policies apply to these galvanic isolator units?
All supplied hardware includes a comprehensive 12-month manufacturer warranty, backed by rigorous pre-shipment quality verification and streamlined local RMA technical support through Beijing Zhongping Technology.
3. What is the allowable operating voltage range for the standard terminal-powered models?
The standard terminal-powered units operate across a wide input voltage range of 18 to 60 V DC.
4. What maximum frequency response and pulse width criteria are supported by the input circuitry?
The input stage accommodates frequency pulse signals from 0.1 Hz up to 100 kHz with a minimum pulse width requirement of 5 μs and input impedance greater than 10 kΩ.
5. What isolation voltage ratings protect the input, output, and power supply circuits?
The internal galvanic isolation barrier provides a dielectric strength of at least 1500 V AC across input, output, and power terminals with insulation resistance exceeding 100 MΩ.
6. What selectable output signal configurations are available on these repeater devices?
Units feature default logic level outputs alongside configurable collector outputs up to 30 V and emitter output options with drive currents up to 10 mA.
7. What physical dimensions and mounting methods are used for control cabinet installation?
Enclosures feature a slim 12.8 mm or 15.8 mm width profile designed for secure snap-on installation onto standard DIN 35 mm mounting rails inside industrial panels.
8. What sensor excitation voltages are provided for powering field devices?
Built-in power distribution channels supply selectable 12 V DC or 24 V DC voltages capable of delivering up to 20 mA for connected field transmitters and proximity sensors.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1) Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
+86 010-64225983
+8613811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China
