1. Model decoding (precise configuration)

330180: 3300 XL 8mm eddy current preamplifier (50Ω system, API 670 compatible) 51

5: Total system length 5m (probe + extension cable)

1: DIN rail installation (standard 35mm rail)

05: CSA, ATEX, IECEx explosion-proof + safety certification (Ex ia IIC T5)

II. Technical Specifications (Electrical / Environmental / Mechanical)

Electrical parameters

System impedance: 50Ω (must be fully matched, cannot be mixed with 75Ω)

Power supply voltage: -17.5 ~ -26 VDC (typical - 24 VDC); with safety barrier -23 ~ -26 VDC

Working current: ≤ 12 mA

Sensitivity: 7.87 mV/μm (200 mV/mil)

Linear range: 0.25 ~ 2.3 mm (10 ~ 90 mils); recommended working gap 1.27 mm (50 mils, approximately - 9 VDC)

Frequency response: 0 ~ 10 kHz (+0/-3 dB)

Output signal: Negative DC voltage (static displacement + dynamic vibration superposition)

Signal transmission distance: Preamplifier → Monitorer up to 305m (1000ft), three-core shielded wire

Environment and mechanics

Working temperature: -35°C ~ +85°C (T5 temperature class)

Storage temperature: -51°C ~ +100°C

Installation method: 35mm DIN rail installation (clip type, with built-in electrical isolation)

Size: 81.3 × 35.1 × 63.5 mm

Weight: approximately 0.25 kg

Shell material: A308 aluminum alloy

Protection level: IP54 (correct installation)

Certifications: SIL 2/3, ATEX, CSA, IECEx, CE, RoHS

III. Standard Complementary Components (5m System)

Probe: 330191-00-26-05-00 (8mm, 5m integrated cable, standard temperature)

Extension cable: No additional required (5m integrated probe cable)

Monitor: 3500/40 (vibration), 3500/42 (axial position), 3500/45 (phase)

IV. Installation Steps (DIN Rail Version)

Rail installation: Align the preamplifier clip with the 35mm DIN rail and press down to secure; the base comes with insulation, no additional insulation board required

Impedance matching: Confirm 50Ω for the entire system (probe + cable + preamplifier), do not cut the cable

Gap setting:

Recommended gap: 1.27 mm (50 mils, -9 VDC)

Measure the voltage between "COM" and "OUT" terminals with a multimeter, fine-tune the probe to the target value and lock it

Cable wiring: Bend radius ≥ 25mm, avoid sharp bends; single-ended grounding (cabinet end grounded, probe end floating)

Terminal (standard):

1: -24 VDC (power negative)

2: COM (common terminal)

3: OUT (signal output)

4: SHIELD (shield layer)

V. Calibration and Maintenance

Calibration (period: 12 months / after major overhaul)

Use ** standard gap blocks (0.25/1.27/2.3 mm)** for calibration

Sensitivity error: ≤ ±1%; linear deviation: ≤ ±0.31 mm (±12 mils)

Maintenance points

Cables: no damage, no compression, joints tightened

Installation: no loosening, no corrosion, insulation intact

Power supply: voltage stable (-23.5 ~ -24.5 VDC)

VI. Troubleshooting (Common Problems) Table

Fault phenomenon Possible cause Handling method

Output voltage is 0 Reverse power connection / Fuse blown Check power polarity, replace fuse

Large voltage drift Poor cable grounding / Interference Reconnect single-ended, keep away from frequency converter

No vibration signal Probe gap exceeds specified range Adjust gap to 1.27 mm

Alarm in explosion-proof area Expired certification / Illegal installation Verify explosion-proof certification, re-standardize installation