What do we offer

Single Pair Ethernet Advanced Layer Ethernet-APL/SPE Field Switch GSNX Series

Designed for hazardous sites in the process industry, this product connects data of 10Mbps SPE/APL field instruments to industrial Ethernet. It links field devices to upper-layer networks, simplifies wiring, reduces costs and boosts efficiency to support industrial digital transformation and upgrading.

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Isolated Barrier GS8500-EX Series

Isolated barrier, reaches TUV SIL2/3 level, with i-nternational certification can meet the needs of v-arious input and output signals.

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SPD T Series Signal

Hot-pluggable Status indication Support Alarm output (optional) 40/80kA 1000A short-circuit withstand

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Signal Conditioner CZ3000 Series

It is used to connect to industrial field instrument and control system, complete signal matching an-d conversion products, through the reliable isolat-ion technique, resist distractions.

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Safety Relay CZSR Smart Series

Excellent quality; 22.5mm model has 3-channel input +2NO output;45.0mm model has 6-channel input +2NO+4SO output

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Why choose us

Know-how

Isolated Barrier

Signal Conditioner

SPD

Safety Relay

Advantages and disadvantages of Zener barrier and isolated barrier

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The meaning of transfer accuracy for IS barriers

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Barrier vs Isolator丨Difference between Barrier and Isolator

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What are the main points when selecting an isolated barrier?

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How to distinguish between active and passive signals? Take GS8547-EX analog input isolated barrier as an example

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Take GS8547-EX analog input isolated barrier as an example. It has an independent power supply. Does it output active signals?

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Type and temperature range will affect the accuracy of temperature Input signal conditioner?

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Why using signal conditioners?

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Signal isolator-- Better assistant in sewage treatment control system

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Barrier vs Isolator丨Difference between Barrier and Isolator

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What are the main differences between Chenzhu's CZ2000 range, CZ3000 range and CZ3500 range signal conditioners?

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How to distinguish between active and passive signals? Take CZ3047 analog input signal conditioner as an example

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Spotlights of T series signal SPD

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Components commonly used in SPD

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What's remote alarm output of Power SPD？

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How to select SPD for signal?

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How to select SPD for AC power？

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What parameters do I need to pay attention when selecting a signal SPD?

5 tips for your selection for a signal SPD

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Impact of safety relays on SIL calculations

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What is the difference between a safety relay and a relay?

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Application of Safety Relay in Punch Machine

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The safety relay typical application of injection moulding machine

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Why should we pay attention to the start-up current of safety relays?

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Is there a life cycle / year for the use of safety relays? Does it need to be replaced regularly?

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2026 IECEx Annual Meeting | Growing Together Over Two Decades, Exploring Practical Implementation of EthernetAPL

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2020-12

2026 IECEx Annual Meeting | Growing Together Over Two Decades, Exploring Practical Implementation of EthernetAPL

Recently, the 2026 IECEx Annual Meeting was held in Beijing, China. Shanghai Chenzhu Instrument Co., Ltd. was invited to attend the event. Zhou Ting, ViceChairperson and ProfessorLevel Senior Engineer of Chenzhu, delivered a keynote speech titled EthernetAPL in Practice: From Standard Interpretation to Design Implementation.

2026 IECEx Annual Meeting | Growing Together Over Two Decades, Exploring Practical Implementation of EthernetAPL

Chenzhu APL Integrated Solution: Intrinsic Safety, Lightning Protection & End-to-End Networking for Hazardous Areas

CHENZHU New Release | Brand‑New APL Field Switch Officially Launched