Emerson CSI A6120 Case Seismic Vibration Monitor CSI 6500

Product Introduction

Brand:Emerson
Model: A6120
Series: CSI 6500
Type: Case Seismic Vibration Monitor
Slot Size: 1 Slot, 3U

A6120 monitors case vibration in velocity.
It works with electro-dynamic sensors 9266, 9267, 9268.
It meets API 670 standard.

Model Structure & Configuration

A6120
│
├─ Function Core
│   ├─ 2 Independent Channels
│   ├─ Velocity Monitoring (mm/s or in/s)
│   └─ Alarm & Relay Drive
│
├─ Sensor Type
│   ├─ Electro-dynamic
│   └─ Backward compatible design
│
└─ System Fit
    ├─ CSI 6500 Rack
    ├─ 19" cabinet
    └─ 14 modules per rack

Measurement Performance

• Frequency range: 10–1000 Hz
• Selectable band: 5–50 Hz / 50–1600 Hz
• Velocity range: 5–100 mm/s
• English unit: 0.197–3.937 in/sec
• Input voltage: -5 to +15 VDC
• Dynamic signal: 311 mV to 9.5 V peak
• Input resistance: >100 kΩ
• Max load: 3.4 kΩ at 2 mA

Output Options

• 0/4–20 mA proportional output
• 0–10 VDC voltage output
• Buffered raw signal 0–12 Vpp
• Front buffered ±10 V
• RS-232 configuration port
• ModBus TCP/IP support

Alarm & Protection Logic

• Alert and Danger setpoints
• 5–100% adjustable range
• Delay time 0–5 sec
• Remote trip bypass
• Limit multiply factor 1.00–4.99
• Self check for sensor and power
• Open and short circuit proof

Electrical & Environmental

• Power: 24 VDC
• Max consumption: 6 W
• Operating temp: 0–65°C
• Storage temp: -30–85°C
• Humidity: 5–95% non-condensing
• Shock: 98 m/s²
• Vibration test IEC 68-2
• EMC: EN50081-1 / EN50082-2

Mechanical Details

• EURO card 100 × 160 mm
• Width: 30 mm (6TE)
• Height: 128.4 mm
• Net weight: 320 g
• One slot required

Key Advantages

• Compact 1-slot design
• Dual channel independent logic
• Hot swappable module
• High noise immunity
• Accurate velocity reading
• Easy rack integration
• Suitable for steam and gas turbines
• Ideal for nuclear plants

Warranty & Delivery

• 12 months warranty
• Full functional test before shipment
• Secure export packing
• Ship by FedEx, UPS, DHL

Professional FAQ

• How do I select correct frequency band?

Check machine speed first.
Low speed uses low band.
High speed uses 50–1000 Hz band.

• Is this monitor good for old sensors?

Yes.
It supports electro-mechanical types.
It works with many legacy models.

• What is the benefit of 1-slot design?

Saves cabinet space.
Reduces heat build up.
Easy to expand system.

• How to avoid false alarms?

Set delay time.
Use proper sensor mounting.
Check cable shielding.

• What should I confirm before ordering?

Confirm rack type.
Check output signal need.
Verify alarm relay option.
Review plant voltage supply.

Contact Information

Email:
info@oiltechcontrols.com
WhatsApp:
+86 158 8020 0923

Original Source:

Market 01

Partner
Powergear X Automation Limited

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