Frequently inquire Together

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The technical specifications for the EPRO MMA3311/022-100 Speed and Key Monitor:

Measurement Performance:

  • Sensor Input Type: Eddy-Current Sensors
  • Measurement Range: Freely selectable by means of configuration software, maximum 65535 rpm (limited by input frequency)
  • Linearity Error: 0.25% at 25°C
  • Linearity Error (Calculated with Sensor): Depending on the sensor, maximum -6% at 25°C
  • Output Stability as Function of Temperature: <0.08% / 10K
  • Long-Term Drift: Maximum 1% of measuring range
  • Frequency Range: 0 to 20 kHz (automatic setting of trigger level)
  • Connection Type (Internal Converter): “LEMO” socket


  • Shock Limit: 20 g pk
  • Temperature Range: -20 to 65°C (-4 to 149°F)
  • Sealing: IP65
  • Agency Ratings: CE


  • Case Material / Weight: Aluminum (non-corroding) / ~1300 g (45.8 oz.)
  • Mounting: Wall mount


  • Supply Voltage Permissible Voltage Range: Nominal +24 VDC
  • Power Consumption: Maximum 6 W
  • Buffered Out (2x):
    • Voltage Range: 2.0 to 10.0 VDC
    • Accuracy: ±2.5%
  • Current Out:
    • Current Range: 0/4 to 20 mA (20 to 4/0 mA)
    • Maximum Burden: Galvanically separated, open circuit and short-circuit proof, 500 Ohm
  • Relay Out (5x make contact):
    • Voltage Contact Rating UMAX: 48 VDC
    • Current Contact Rating IMAX: 1 A
    • Power Contact Rating PMAX: 50 W
Is our price competitive?
Topbrands collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What payment methods do we accept?
We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What shipping methods do we use?
We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
What is our delivery time?
Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
How do we package the goods?
Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
How can customers contact us and request a quote?
Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.

Topbrands PLC Limited is a top supplier of genuine new PLC and DCS parts, serving over 50 countries globally. We offer high-quality products from renowned brands like Bently Nevada, Honeywell, ABB, and more. With our warehouse in China stocking up to 30,000 pieces, we ensure rapid delivery to meet urgent order needs while maintaining competitive pricing to save our customers' budgets. Learn more...

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