SIEMENS壓差開關(guān)QBM81系列技術(shù)參數(shù)
Technical data | |
Electrical interface | |
Type of switch | Single-pole change-over, multi-layer contact |
Contact rating | AC/DC 24 V, t 0.01 A |
Voltage against earth | Max. AC 250 V |
Switching differential | Factory set |
Reset | Automatic |
Service life | >1 000 000 switching cycles |
Functional data | |
Max. unilateral overload | -30…75 °C: 7500 Pa |
Permitted media | Air, non-corrosive gases |
Reproducibility for range | 20…300 Pa: <±2.5 Pa |
Degree of protection | |
Protection class | III according to EN 60730-1 |
Protection degree of housing | IP54 according to EN 60529 |
Materials | |
Housing | Fiber-glass reinforced polycarbonate |
Cover | Polycarbonate |
Diaphragm | Silicone. low-swell rubber, emission-free |
Mounting bracket | Sheet-steel (galvanized) |
Duct adaptors | ABS |
Tubing | PVC, soft |
Mounting | |
Orientation | Any; |
Connections | |
Electrical connection | 3 screw terminals |
Cable entry | PG11 cable gland |
Pressure connections | Male, dia. 6.2 mm |
Ambient conditions | |
Ambient temperature: | Operation –30... + 85 °C |
Ambient humidity | <90 % r.h. (non-condensing) |
Directives and Standards | |
Product standard | EN 61326-x |
Electromagnetic compatibility (application) | For residential, commercial, and industrial environments. |
EU Conformity (CE) | CA1T1552xx *) |
EAC Conformity | Eurasia Conformity |
DVGW approval | to DIN 1854 |
Combustion class | According to UL94 |
Pressure casing and housing | V-0 |
Cover | HB |
Plastic tubing | V-2 |
Duct adaptors | HB |
Weight | |
Weight (including packaging) | 0.19 kg with mounting bracket |
SIEMENS壓差開關(guān)QBM81系列介紹
兩個(gè)壓力連接之間的壓差使彈簧加載的隔膜偏轉(zhuǎn)。 這種特殊的隔膜確保了開關(guān)點(diǎn)的長(zhǎng)期穩(wěn)定性。
每種類型都刻有單獨(dú)的刻度，以便進(jìn)行非常精確的調(diào)整。
The differential pressure between the two pressure connections deflects a springloaded diaphragm. This special diaphragm ensures the long-term stability of switching points.
Each type is engraved with individual scales for very precise adjustment.
SIEMENS壓差開關(guān)QBM81系列其他常用型號(hào)：
SIEMENS QBM81-3
SIEMENS QBM81-5
SIEMENS QBM81-10
SIEMENS QBM81-20
SIEMENS QBM81-50
SIEMENS DIFFERENTIAL PRESSURE MONITOR NEW + ORIGINAL+ ONE YEAR WARRANTY
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如果有任何關(guān)于SIEMENS壓差開關(guān)QBM81-5的疑問，請(qǐng)隨時(shí)與我們溝通（021-31006702）。我們將盡全力解決您的問題。
If you have any question for SIEMENS products, please feel free to dial 0086-21-3100 6702/ send request email to [email protected] / browse our website:www.www.jguvm.cn.
SIEMENS壓差開關(guān)QBM81系列QBM81-5技術(shù)參數(shù)及介紹
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