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Emerson A6120 Dual-Channel Case Seismic Vibration Monitor
Manufacturer: Emerson (AMS/EPRO)
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
- Product Overview
- Key Functions
- Official Specifications
- Frequently Asked Questions
- Compatibility & Ordering Notes
- Hot Selling Models
- Recommended Products
Overview
A6120 Dual-Channel Case Seismic Vibration Monitor
Official-source product identification, application guidance and ordering checks for A6120.
At a Glance
| Brand | Emerson (AMS/EPRO) |
|---|---|
| Model | A6120 |
| Product Type | Dual-Channel Case Seismic Vibration Monitor |
| Core Function | Monitors case seismic vibration and compares vibration parameters against alarm setpoints for machinery protection |
| Application / Compatible Series | AMS 6500 machinery protection systems for steam and gas turbines, compressors and hydro-turbomachinery |
Verified identification
A6120 is identified by the complete manufacturer model and the photographed unit.
Application focus
A6120 is intended for bearing-case vibration monitoring on turbines, compressors and other rotating machinery.
Ordering control
A6120 should be matched by the full nameplate, hardware revision and installed configuration.
Product Overview
A6120 is an Emerson (AMS/EPRO) Dual-Channel Case Seismic Vibration Monitor used for bearing-case vibration monitoring on turbines, compressors and other rotating machinery.
Key Functions
Verified identification
A6120 is identified by the complete manufacturer model and the photographed unit.
Application focus
A6120 is intended for bearing-case vibration monitoring on turbines, compressors and other rotating machinery.
Ordering control
A6120 should be matched by the full nameplate, hardware revision and installed configuration.
Official Specifications
| Number of Inputs | Two independent channels |
|---|---|
| Input Type | Electro-dynamic (electro-mechanical), differential |
| Input Isolation | Galvanically separated from the power supply |
| Input Resistance | >100 kΩ |
| Input Voltage Range | -5 to +15 VDC |
| Input Frequency Range | Lower cutoff 1 or 5 Hz; upper cutoff 50 to 2000 Hz, adjustable |
| Metric Measuring Range | 5 to 100 mm/s Vrms (±25 to ±500 μm) |
| English Measuring Range | 0.197 to 3.937 in/s Vrms (±0.984 to ±19.685 mils) |
| Standard Frequency Range | 10 to 1000 Hz (VDI 2056, DIN 4566, ISO 3945) |
| Selectable Frequency Ranges | 5 to 50 Hz, 10 to 50 Hz, 50 to 1000 Hz, or 50 to 1600 Hz |
| Lifting Coil Current | 0 to 8 mA, configurable in 40 μA steps |
| Maximum Permissible Load | 3.4 kΩ at 2 mA |
| Minimum Dynamic Input Voltage | 311 mV peak-to-peak |
| Maximum Dynamic Input Voltage | 9500 mV peak-to-peak |
| Front Buffered Outputs | Two; identical to the transducer sensor inputs |
| Front Buffered Output Level | ±10 V with load >100 kΩ |
| Configuration Interface | Mini-DIN socket with RS-232 |
| Measurement Modes | Hot configurable; independent dual-channel; Vrms, zero-to-peak, and peak-to-peak |
Source scope: Technical statements below are limited to Emerson AMS 6500 Classic Protection Cards. Commercial availability, condition and warranty are seller terms.
Frequently Asked Questions
Which AMS 6500 rack configuration is compatible with A6120?
Use it as a one-slot monitor with the AMS 6500 machinery protection system, confirming the rack position, hardware revision and installed configuration before replacement.
Which transducers can engineers use with A6120?
The differential inputs are intended for electro-dynamic (electro-mechanical) velocity transducers; Emerson identifies sensor part numbers 9266, 9267 and 9268.
Where is A6120 normally applied on rotating machinery?
It monitors case seismic vibration at bearing housings on steam and gas turbines, compressors, hydro-turbomachinery and other critical rotating equipment.
What should be verified before installing A6120?
Confirm the 3U one-slot rack position, sensor polarity, field wiring, input range, alarm setpoints and the complete hardware revision before energizing the system.
How many measurement channels does A6120 provide?
It provides two independent measurement channels with differential electro-dynamic inputs.
Which input frequency settings are available for A6120?
The lower cutoff is selectable at 1 or 5 Hz, while the upper cutoff is adjustable from 50 to 2000 Hz.
What output options does A6120 provide?
Two front buffered outputs reproduce the transducer inputs; rear proportional outputs include 0/4–20 mA current and 0–10 V voltage signals for each channel.
Compatibility & Ordering Notes
Before installation
- Match the complete A6120 nameplate and revision.
- Verify system, rack, carrier, sensor, terminal and field-wiring requirements as applicable.
- Use qualified personnel and the manufacturer maintenance procedure.
Official technical source: Emerson AMS 6500 Classic Protection Cards
