ETCR 2800B Скачать руководство пользователя страница 3 | Manualshive

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ETCR 2800B Скачать руководство пользователя страница 3

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Content

Attention Items: .......................................................................................................................................................... 3

I. Brief Introduction .................................................................................................................................................... 3

II. Model Difference ................................................................................................................................................... 3

III. Technical Specifications ....................................................................................................................................... 4

IV. Detector Structure ................................................................................................................................................. 5

V. Network Structure .................................................................................................................................................. 5

VI. The Principle and Application of Detection ......................................................................................................... 6

VII. Wiring Instructions ............................................................................................................................................. 9

VIII. Install Caution ................................................................................................................................................... 9

IX. Power Supply Way Choice ................................................................................................................................... 9

X. Basic Equipment .................................................................................................................................................... 9

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Содержание 2800B

Страница 1: ......

Страница 2: ...1 ...

Страница 3: ...n 3 II Model Difference 3 III Technical Specifications 4 IV Detector Structure 5 V Network Structure 5 VI The Principle and Application of Detection 6 VII Wiring Instructions 9 VIII Install Caution 9 IX Power Supply Way Choice 9 X Basic Equipment 9 ...

Страница 4: ...red on line testing non contact measurement grounding wire pass through the hole definitely not influence grounding for lightening effect and facilities normal operation real time on line testing Detector provides power supply and RS485 signal interface provides standard MODBUS RTU communication protocol which is convenient for doing second development Detector can install and use singly and also ...

Страница 5: ...hite analog grounding power supply input cathode can connects with analog grounding by short circuit connection Protocol Standard RS485 standard MODBUS RTU communication protocol Alarm Indication ETCR2800C Detector Audible and visual alarm instructions Alarm Setting ETCR2800C Detector panel setting Data Display ETCR2800C 4digits LCD direct indication LCD Dimensions 47mm 28 5mm Detector Dimensions ...

Страница 6: ...saving Note ETCR2800B mode without LCD display and press key function V Network Structure 1 Independent Installation and Use ETCR2800C can be installed and used independently also can develop system software on their own according to offered RS485 communication protocol organizes a network monitor LCD shows measured value directly also sets up Detector s alarm critical value and possess audible an...

Страница 7: ...k B s in parallel resistances less than or equal to 2 5Ω accordingly judge actual grounding resistance value of grounding network A and grounding network B parallel connection whether qualified If grounding network A and grounding network B s in parallel resistances less than engineering standard required value so grounding network A and grounding network B are all qualified 3 Metal Return Circuit...

Страница 8: ...ng down lead together on the ground to form a return circuit then install the Detector to monitor 5 Application 1 Power Transmission System Pole Ground Connection It forms multipoint grounding system through overhead ground wire connection test conveniently its equivalent circuit as the following picture on the right illustration R1 is predicted grounding resistance R0 is the equivalent resistance...

Страница 9: ...ether under the ground for the single point grounding system testing grounding resistance in accordance with single point grounding system direct installation test return circuit resistance can judge grounding connection condition For the large scale construction grounding grid it is to monitor its equipotential value of grounding condition between grounding down lead and grounding network If prob...

Страница 10: ...nt for product maintenance latterly Installation must be waterproof rainproof anti theft and breakage proof and so on in the open air 2 Notice direction try to be vertical and wire port downwards 3 Notice height 4 Deploy power supply and communication wire on the basis of field and distance 5 Power supply wire s polarities connect properly or Detector doesn t work IX Power Supply Way Choice 1 AC a...

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Страница 12: ...CR Electronic Technology Company Address F 3F No 4 Pengshang Zhifu Road Jiahe Baiyun District Guangzhou Guangdong China Post Code 510440 Tel 86 20 62199556 62199554 Fax 86 20 62199550 E mail info etcr cc Website www etcr cc ...

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