iTrans 固定式偵測器
兼顧安裝彈性和效能的固定式Transmitter
- 提供單點單sensor或雙sensor，本機或遠端sensor最遠可達200米
- 每一個sensor都提供標準4-20 mA類比輸出或ModBus RTU數位輸出
- 超亮LED雙channel顯示
- 可選購本機relay接點
- 可使用磁棒做非侵入式校正
- 鋁製防爆外殼
下一世代的 iTrans?固定式氣體偵測器可提供單點一個或兩個sensor，可提供使用者在安裝上最大的彈性、最好的效能和最低的安裝成本。四線系統透過RS485 bus架構可串接最多200 transmitters，使用"smart" sensor技術，可提供sensor自動辨識、歸零、校正錯誤保護、安全密碼保護，並以鋁製防爆外殼包覆。
透過微處理器控制的transmitters可提供獨立運作工作或是透過標準4-20 mA類比輸出或ModBus RTU數位輸出連接到任何控制主機或是PLC。透過選購的本機relay接點，不需透過控制主機，偵測器可獨立運作，啟動警報、風扇或是關閉整個系統。
iTrans也提供relay關閉功能，以避免在校正時啟動任何被控設備。
| 外殼 | Cast aluminum, poly-bonded coating, explosion-proof, NEMA 4X, IP66 rating |
|---|---|
| Sensors |
Combustible Gases: Catalytic bead and/or Non-Dispersive
Infrared (NDIR) Oxygen / Toxic Gases: Electrochemical diffusion |
| 範圍 |
Combustible gases: 0 -100% LEL in 1% increments
Hydrogen: 0 - 1999 ppm in 1 PPM increments Oxygen: 0 - 30.0% by volume in 0.1% increments Ammonia: 0 - 200 PPM in 1 PPM increments Carbon Monoxide: 0 - 999 PPM in 1 PPM increments Hydrogen Sulfide: 0 - 500 PPM in 1 PPM increments Sulfur Dioxide: 0.2 - 99.9 PPM in .01 PPM increments Hydrogen Cyanide: 2 - 30 PPM in 1 PPM increments Hydrogen Chloride: 0.2 - 30.0 PPM in .01 PPM incr. Phosphine: 0 - 1.00 PPM in .01 PPM increments Nitrogen Dioxide: 0.2 - 99.9 PPM in 0.1 PPM increments Nitric Oxide: 0.0 - 99.9 PPM in 0.1 PPM increments Chlorine: 0.2 - 99.9 PPM in .01 PPM increments Chlorine Dioxide: .02 - 2.00 PPM in .01 PPM increments |
| 顯示 | Dual-channel split-screen LED display (4 digit, 7 segmentarrangement per channel) provides simultaneous display of one or two gases. |
| 輸入電壓 | 12-28 VDC operating range (24 VDC typical) |
| 輸入電流(max.) |
Toxic Gas / Oxygen: 150 mA @ 24 VDC (single gas)
Combustible gases (Catalytic): 175 ma @ 24 VDC, 0.6A peak (single gas) Combustible gases (Infrared): 150 ma @ 24 VDC, 0.6A peak (single gas) Combined catalytic/infrared: 280 ma @ 24 VDC (two gas) |
| 信號輸出 |
4-20 ma, linear analog) and ModBus RTU (digital)
RS485 digital communication with ModBus RTU software protocol system at 9600 baud. Three or four wire system capable of accommodating over 200 devices in bus configuration. Address selection through on-board 8-position dipswitch. |
| Alarm Relays | 3 alarm relays: Fault, plus 2 user-programmable relays, SPST, NO |
| Contact Capacity | 5 Amps @ 30 VDC |
| 溫度範圍 |
-20°C to +40°C, typical
-40°C to +75°C - Catalytic LEL |
| 濕度範圍 | 15-90% RH (non-condensing), typical |
| 安規 |
NRTL/c: Class I, Div. 1, 2, Groups B, C, D
CSA: Class I, Div. 1, 2, Groups B, C, D CENELEC (ATEX): EEx d IIB + H2 T5 Australia: Ex d IIB + H2 T6 China: GB 3836.1-Ex d IIC T4; LEL version GB15322-94 Fire protection (pending) |