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BD SENSORS Level Meter DMK457
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Accuracy
IEC 60770: ≤ ± 0.5 % FSO
Permissible load Rmax = [(VS – VS min) / 0.02 A]
Influence effects supply: 0.05 % FSO / 10 V
load: 0.05 % FSO / k
Long term stability ≤ ± 0.3% FSO / year at reference conditions
Response time < 10 msec
Thermal error ≤ ± 0.2 % FSO / 10 K in compensated range 0 ... 85 °C
Permissible temperatures medium: -40 ... 125 °C
electronics / environment: -40 ... 85 °C
storage: -40 ... 100 °C
Short-circuit protection permanent
Reverse polarity protection no damage, but also no function
Diaphragm ceramic Al2O3 96 %
Media wetted parts pressure port, seals, diaphragm
Why Global Buyers Choose O&Kmarts
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: How does OKmarts handle unexpected price fluctuations or tariff updates after an order is placed?
A: Once a Proforma Invoice is issued and payment is confirmed, your pricing is legally locked. OKmarts absorbs any subsequent raw material price spikes, supplier price adjustments, or sudden export tariff increases, guaranteeing that the price you pay at checkout is final.
Q: Are there any hidden fees, handling charges, or unexpected export tariffs added to the final invoice?
A: Our pricing is transparent. Line items for product costs and shipping fees are explicitly detailed at checkout. Local import duties, VAT, or regional consumption taxes are typically the responsibility of the importer of record unless a DDP (Delivered Duty Paid) arrangement is pre-negotiated.
Q: How does OKmarts mitigate international shipping delays caused by customs clearance issues?
A: We provide meticulous commercial invoicing, precise HS Code classification, and complete export documentation to minimize customs holding times. For major regional markets, we work alongside experienced customs brokers to ensure compliance with import frameworks.
Related Products
Q&A
Q: Are the actual colors of the products consistent with the pictures?
A: We do our best to ensure the accuracy of product images. However, due to variations in display devices and lighting conditions, there may be slight differences in actual colors. We provide detailed color descriptions to assist you in making better choices.
Q: Is there a warranty period for the products?
A: Yes, our products usually come with a warranty period, and the specific warranty period will be indicated on the product details page. If you encounter any quality issues after purchase, please contact our customer service team promptly. We will provide you with the appropriate after-sales service.
Q: How can I search for products on the website?
A: You can use the search bar located at the top of the website to enter keywords and find the desired products. Alternatively, you can browse through different categories and filter options to narrow down your search.







