英國(guó)BEKA數(shù)字顯示表BA 328 E-BL
這些第四代本質(zhì)安全4/20mA回路供電指示器具有大的高對(duì)比度顯示器，視角非常寬。在擴(kuò)展的溫度范圍內(nèi)運(yùn)行，它們包含許多以前僅作為選項(xiàng)提供的標(biāo)準(zhǔn)功能。廣泛的熱測(cè)試和振動(dòng)測(cè)試提供了三年保修期的最大可靠性。
盡管指示器可以很容易地在現(xiàn)場(chǎng)重新校準(zhǔn)，但工廠校準(zhǔn)或刻度和標(biāo)簽標(biāo)記不需要額外收費(fèi)。
| Model | BA307E | BA308E | BA327E | BA328E |
|---|---|---|---|---|
|
|
 #
|
 #
|
|
|
Mounting & Enclosure |
Panel 96 x 48 |
Panel 144 x 72 |
Panel 96 x 48 |
Panel 144 x 72 |
| Protection | Front IP66, rear IP20 | |||
| Display |
4 digits 15mm high |
4 digits 34mm high |
5 digits 12.7mm high + bargraph |
5 digits 29mm high + bargraph |
| Certification | ||||
|
International IECEx |
Gas - Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C Dust - Ex ia IIIC T80°C Db IP20 -40°C ≤ Ta ≤ +70°C |
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|
Europe ATEX |
Gas - Group II Category 1G Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C Dust - Group II Category 2D Ex ia IIIC T80°C Db IP20 -40°C ≤ Ta ≤ +70°C |
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|
UK UKEX |
Gas - Group II Category 1G Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C Dust - Group II Category 2D Ex ia IIIC T80°C Db IP20 -40°C ≤ Ta ≤ +70°C |
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|
USA FM & Canada cFM |
Entity IS / I / A, B, C, D / T5 Ta = 70°C I / 0 / AEx ia IIC / T5 Ta = 70°C Non incendive NI / I / 2 / ABCD / T5 Ta=70°C - NIFW NI / II / 2 / EFG / T5 Ta=70°C - NIFW NI / III / 2 / T5 Ta=70°C - NIFW NI/ I / 2 / IIC / T5 Ta=70°C - NIFW |
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|
China CCC Ex |
Gas - Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C Dust - Ex ia IIIC T80°C Db IP20 -40°C ≤ Ta ≤ +70°C |
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|
India CCOE/PESO |
Gas - Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C Dust - Ex ia IIIC T80°C Db IP20 -40°C ≤ Ta ≤ +70°C |
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| Optional | ||||
| Alarms | Yes | |||
|
Backlight, which may be loop or separately powered |
Yes | |||
|
Scalecard and tag / application marking (no charge) |
Yes | |||