Description
Basic Technical Specifications of MMS6312 Single-Channel Axial Displacement & Vibration Monitoring Module
(Emerson EPRO MMS6000 Series)
- Measurement Configuration
Channel Quantity: 1 single channel (configurable for axial displacement or radial vibration)
Measurement Type:
Axial displacement (shaft position)
Radial vibration (velocity/displacement)
Optional: Differential expansion (with compatible sensors)
- Input Specifications
Sensor Compatibility:
Eddy current proximity probes (e.g., EPRO PR64xx series, 3-wire)
Electric velocity sensors (e.g., EPRO PR926xx series, 2-wire)
Input Signal Range:
Eddy current probes: -20V to +20V DC (displacement measurement)
Velocity sensors: -5V to +15V DC (velocity measurement)
Sensor Supply:
For eddy current probes: 24V DC ±10%, max. 20mA per channel (integrated probe driver)
For velocity sensors: 0-8mA lift-off current (adjustable)
- Measurement Performance
Frequency Range:
Displacement measurement: 0.1Hz to 1000Hz
Velocity measurement: 5Hz to 1600Hz
Measurement Range:
Axial displacement: 0-2000μm (configurable via software, dependent on probe range)
Radial vibration (velocity): 0-50mm/s RMS (0-141.4mm/s peak)
Radial vibration (displacement): 0-1000μm peak-peak
Accuracy: ±1% of full scale (FS) at 25°C
Resolution: 0.01μm (displacement); 0.01mm/s (velocity)
- Output Signals
Analog Output: 1 x 4-20mA DC current output (isolated, load resistance: 0-500Ω)
Corresponding to measured value (configurable full-scale range)
Dynamic Signal Output: 1 x 0-20Vpp (peak-peak) AC signal, bandwidth 0.1Hz-10kHz
For spectrum analysis and fault diagnosis
Relay Output: 1 x changeover relay (NO/NC configurable)
Contact rating: 250V AC / 3A, 30V DC / 3A
Triggered by alarm/danger thresholds or module fault
- Alarm & Protection Functions
Threshold Settings: Configurable “Warning” and “Danger” thresholds (software-adjustable)
Alarm Features:
Alarm latching (manual/automatic reset configurable)
Limit multiplier (temporary threshold adjustment for critical speed transients)
Sensor fault detection (open/short circuit, signal loss)
Module self-diagnosis (power supply, internal circuit integrity)
Fault Indication: LED indicator (red/yellow/green) + relay output + software status feedback
- Power Supply
Input Voltage: 24V DC ±15% (redundant input optional)
Power Consumption: Max. 5W (typical 3W)
Reverse Polarity Protection: Yes (integrated diode protection)
- Environmental Conditions
Operating Temperature: -20°C to +70°C (-4°F to +158°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Relative Humidity: 5% to 95% (non-condensing)
Vibration Resistance: 10g (10-2000Hz) per IEC 60068-2-6
Shock Resistance: 30g (11ms half-sine) per IEC 60068-2-27
Protection Rating: IP20 (front panel); IP65 (optional for harsh environments)
- Mechanical & Installation
Mounting: DIN rail mounting (EN 50022, 35mm)
Dimensions: 17.5mm (width) x 120mm (height) x 115mm (depth)
Weight: Approx. 150g (without wiring)
Hot-Swappable: Yes (supports on-line replacement without system shutdown)
- Communication Interface
Configuration Interface: RS232 (local) / RS485 (remote), Modbus RTU protocol
Data Output: Measured values, alarm status, fault codes, sensor health data
- Certifications & Compliance
Safety Certifications: CE, UL, CSA
EMC Compliance: EN 61000-6-2 (immunity), EN 61000-6-4 (emission)
Industrial Standards: Compliant with ISO 10816, API 670, DIN 45670
MMS6312 PDF
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