Sartorius MDB-5E

Product Name:

Sartorius MDB Series Multi-Drop Bus Weighing Indicator / Weight Transmitter (MDB-5E)

Product Description:

A compact industrial weight transmitter and display controller belonging to Sartorius MDB (Multi-Drop Bus) family. It processes analog or digital load cell signals and provides weight values locally on an LED display and remotely via RS-232/RS-485 (Multi-Drop Bus) to a PLC or PC.

Category: Others

Description

Technical Specifications:

Model: MDB-5E
Excitation Voltage to Load Cell: 5 VDC or 10 VDC (selectable)
Load Cell Input: 1–4 analog strain-gauge cells (or digital cells on bus models); typical sensitivity 1–5 mV/V
Display: 6-digit high-brightness LED, gross/net/tare indication
Resolution: Up to 1:10,000 display (internal 24-bit A/D typical)
Zero & Span Adjustment: Digital via keypad or communication
Digital I/O (typical): 2–4 opto-isolated inputs, 2–4 relay outputs (model-dependent)
Serial Interface: RS-232 (local), RS-485 (Multi-Drop Bus for up to 32 units)
Analog Output (optional config): 4–20 mA / 0–10 V weight retransmission
Power Supply: 100–240 VAC 50/60 Hz OR 24 VDC (verify label)
Operating Temp: -10 °C to +40 °C
Enclosure: ABS/metal case, panel cutout mount (IP65 front)
Calibration: Via test weights or electronic simulation (CAL menu)

Features:

Multi-drop networking — several MDB units share one RS-485 line to host
Digital filtering for vibration suppression
Tare, preset tare, zero tracking, motion detection
Password-protected calibration menus

Applications: Batch weighing, filling/dosing stations, tank & silo weighing, checkweighers integrated with PLC/DCS.

Construction & Materials: Die-cast or molded enclosure with polycarbonate window, tactile keypad, screw terminals at rear.

Working Principle: Excites load cell bridge → amplifies mV signal → 24-bit sigma-delta A/D → digital filtering → converts to weight using stored calibration → displays locally and transmits via serial bus; activates relays on setpoint comparison.

Installation & Precautions:

Mount away from direct washdown if not fully sealed; ensure front gasket is properly compressed.
Use shielded twisted pair for load cell signal wires; ground shield at indicator only.
Do NOT energize load cell excitation lines before verifying wiring polarity.
Perform calibration with certified test weights; record calibration parameters.
Avoid placing near strong RF/EMI sources (welders, VFDs) without additional shielding.

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