英国BEKA数字显示表BA 328 E-BL
这些第四代本质安全4/20mA回路供电指示器具有大的高对比度显示器，视角非常宽。在扩展的温度范围内运行，它们包含许多以前仅作为选项提供的标准功能。广泛的热测试和振动测试提供了三年保修期的最大可靠性。
尽管指示器可以很容易地在现场重新校准，但工厂校准或刻度和标签标记不需要额外收费。
| Model | BA307E | BA308E | BA327E | BA328E |
|---|---|---|---|---|
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 #
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 #
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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 | |||
