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防爆感應式接點壓力表YXG Explosion-proof Inductive Electric Contact Pressure Gauge 簡介 YXG系列防爆感應式接點壓力表的接點形式為感應式接近開關,由于是非接觸式接點,所以對供電系統不產生任何損耗,該儀表無電火花,使用壽命長,對測量影響小,不僅適用于某些有爆炸危險的場所,也特別適合設備頻繁開關的場合使用。具有對工藝流程中的流體介質的壓力參數進行檢測、自動控制、自動報警等功能。 YXG系列防爆感應式接點壓力表是按GB3836.1《爆炸性氣體環境用電氣設備通用要求》和GB3836.4《爆炸性氣體環境用電氣設備本質安全型“i”》標準設計制造,并經國家相關部門進行防爆檢驗合格。 YXG系列防爆感應式接點壓力表應與P+F公司生產的安全柵配套使用,可構成本質安全防爆系統。此系統適用于1 區和2 區具有爆炸性氣體的區域。 Brief introduction The switch of YXG series explosion-proof inductive pressure gauge is inductive approachform, because of non-contact-type, it have not any spoilage to the power supply system. Without electric spark, long using life, little impact on the measurement accuracy, it is not only applicable to certain dangerous places, but also suitable for frequent turn on/off occasions. It has the testing function, automatic control, and automatic warning to the liquid medium . YXG series explosion-proof inductive pressure gauge is based on GB3836.1< the request of the electric equipment used in explosive gas environment > "and GB3836.4< safe explosive gas environment electrical equipment intrinsically safety-type" I " >, and qualified the relevant departments for the national explosion test. YXG series explosion-proof inductive pressure gauge should match with safety bar P+F to be a system of intrinsically safe explosion-proof. This system is applied to 1 area and 2 area with explosive gas. 工作原理 YXG系列防爆感應式接點壓力表的測量系統由彈簧管、機械傳動機構、示值部件、感應式接點裝置組成。彈簧管在被測壓力作用下,產生彈性變形引起管端位移,其位移通過機械傳動機構(連桿和機芯)進行放大,傳遞給示值部件,指針在刻度盤上指示出相應的壓力值的同時,帶動控制片的位置發生變化,當儀表指針與上限或下限設定指針重合時,控制片影響敏感元件的電磁場變化,使感應開關電氣狀態發生改變。 可在設備達到設定壓力時輸出斷(通)態信號,與外部設備用適當的電路連接后便能發出所需的報警信號或開、停機等控制壓力的動作,將系統壓力控制在所需范圍內。 Operating principles The measure system of YXG series explosion-proof inductive contacts pressure gauge. Is composed by the bourdon tube, mechanical transmission system, value-show components, inductive contact device.The deformation of bourdon tube under the measuring pressure causes pipes -displacement, and the displacement is enlarged by mechanical transmission organizations(connecting rod and movement), which is transferd to value-show components. Then the value of the pressure is indicated and the position of control patch is changed. When the up and down limits set become to be coinciding, the control patch affects the electromagnetic field changes to transform the state of electrical switches. With the output of turn on/off signal, to send the alarm or start/stop machine after connecting outer equipment, control system pressure within required range. 主要技術指標 儀表類型 Types; YXG 彈簧管標準型 YPXG 膜片標準型 YXGS 彈簧管密閉型 YPXGS 膜片密閉型 YXGN 彈簧管耐震型 YPXGN 膜片耐震型 YXG Bourdon tube standard type YPXG Diaphragm standard type YXG Bourdon tube obturation type YPXGS Diaphragm obturation type YXGN Bourdon tube vibration-proof type YPXGN Diaphragm vibration-proof type 儀表公稱直徑 Diameter:φ 100mm、φ 160mm 儀表結構形式 Structure: ①≥ 0.1MPa 彈簧管型 ②< 0.1MPa 膜片型 ①≥ 0.1Mpa Bourdon tube type ②< 0.1Mpa Diaphragm type 控制方法 Control: 電感式接近開關,輸出方式見附表 度等級 Accuracy: φ 100mm 彈簧管型:(≥ 0.4MPa):1.0、1.5 級(1.6 級);(< 0.4MPa 及真空):1.5 級(1.6 級); φ 160mm 彈簧管型:(≥ 0.1MPa):1.0、1.6 級(1.5 級);(真空):1.6 級(1.5 級); φ 100mm 膜片型:2.5 級;≥ 10kPa 1.5 級(1.6 級) φ 160mm 膜片型:1.6 級(1.5 級)< 10KPa 2.5 級 φ 100mm Bourdon tube type: (≥ 0.4MPa): 1.0%, 1.5%(1.6%);(< 0.4Mpa & vacuum =:1.5%(1.6%); φ 160mm Bourdon tube type: (≥ 0.1MPa): 1.0%, 1.6%;(vacuum)1.6% φ 100mm Diaphragm type: 1.5%(1.6%), 2.5%; φ 160mm Diaphragm type: 1.6%; 測量范圍 Range; ① 0~0.1 至0~60MPa、-0.1~0 各系列及任何相關正負壓聯程 ② 4kPa~100kPa、-100kPa~0 各系列及任何相關正負壓聯程 ① 0-0.1to 0-60Mpa, -0.1-0 series and compound ranges ② 4Kpa-100Kpa, -100Kpa-0 series and compound ranges 電感式接近開關電氣參數Inductance approach switch electrical parameter ①額定電壓:8VDC,安全使用電壓< 16VDC ②工作電流:通態≥ 3mA,斷態≤ 1mA,安全使用電流< 52mA ③開關頻率:< 5000Hz ① Pressure gauge fixed: 8VDC, Safe voltage < 16VDC ② Working current: Opening ≥ 3Ma,Closed ≤ 1Ma,Safe current < 52mA ③ On/off frequency < 5000Hz 工作環境溫度 Ambient temperature: 20℃~+60℃ 防爆等級 Explosion-proof class: Exib Ⅱ CT6 防爆合格證號碼The code of Explosion-proof Certificate: CE052074 儀表防護等級Protection class: ①標準型:IP54 ②密閉型、耐震型:IP65 ① Standard type:IP54② Obturation & vibration-proof type:IP65 耐震型儀表填充液Liquid filling of vibration-proof instrument: 專用儀表填充液Special Instrument liquid 電感式接近開關控制方法及接線示意 Control method and wiring diagram of electric inductive approach switch
| 接點代碼 Code of contacts | 接點功能 識別編號 | 接點 數量 | 指針須順時針旋轉開關功能 | 批針在零位時開關示意圖 |
| 單上限 | 831.2 | 1 | 超過設定點時,控制片進入控制頭,接點斷開電路 (常閉接點) | |
| 單上限 | 831.1 | 超過設定時,控制片從控制頭中出來,接點接通電路 (常開接點) | ||
| 雙上限 | 831.22 | 2 | 超過設定點時,接點1 和接點2 的控制片進入控制頭 接點1 和接點2 都斷開電路 | |
| 雙上限 | 831.11 | 超過設定點時,接點1 和接點2 的控制片都從控制頭中出來 接點1 和接點2 都接通電路 | ||
| 常開上下限 | 831.12 | 超過設定點時,接點1 的控制片從控制頭中出來,接點接通電路 接點2 的控制片進入控制頭,接點斷開電路 | ||
| 常閉上下限 | 831.21 | 超過設定點時,接點1 的控制片進入控制頭,接點斷開電路 接點2 的控制片從控制頭中出來,接點接通電路 |








