Emerson Extension Cable CA6423-090-000 9m low-noise coaxial

Based on the model number CA6423-090-000, this is a specific low-noise coaxial extension cable designed for Emerson's CSI (Bently Nevada) vibration sensors, particularly accelerometers like the PR6423 series you inquired about earlier. Here's a detailed breakdown:

Manufacturer & Line: Emerson (CSI / Bently Nevada)

Series: CA6423 (Dedicated low-noise coaxial cable series for Bently Nevada sensors)

Cable Type: Low-Noise Coaxial

Purpose: Minimizes electromagnetic interference (EMI) and radio frequency interference (RFI) pickup. Critical for accurately transmitting the sensitive, low-level voltage signals (mV/g) generated by piezoelectric accelerometers (like the PR6400/PR6423 series) over distance.

Construction: Features specialized shielding (often double or triple shielding: braid + foil) and dielectric materials designed to prevent triboelectric noise (noise generated by cable movement/flexing).

Length: 9 meters (090 = 9m). This is a standard length option for extending sensor reach.

Connectors:

Female Connector (Sensor End): MIL-C-5015 style (or equivalent, like ITT Cannon BM series). This is the standard connector type used on the integral cables of Bently Nevada accelerometers (like the one on your PR6423-011-081).

Male Connector (System End): MIL-C-5015 style (or equivalent). Designed to plug directly into Bently Nevada monitor input modules (e.g., 3500/42M, 3500/45, 1900/65) or compatible signal conditioners/readouts.

Key Specifications:

Impedance: Typically 50 Ohms or 93 Ohms (specific to Bently Nevada designs - verify datasheet).

Shielding: High-efficiency (>90% coverage) braided shield, often combined with foil shield and drain wire.

Triboelectric Noise: Specially designed to minimize this internally generated noise.

Capacitance: Low and stable capacitance per unit length (critical for signal integrity).

Jacket: Durable, oil-resistant, flexible industrial jacket (e.g., PUR, PVC). Rated for harsh environments.

Temperature Rating: Typically -40°C to +100°C or higher (match to sensor/system requirements).

Bending Radius: Specified minimum bend radius to prevent damage and maintain performance.

Compatibility:

Sensors: Primarily designed for accelerometers in the PR 6400 / PR 6423 series (like your -011-081) and similar Bently Nevada vibration sensors with integral MIL-C-5015 connectors.

Systems: Compatible with Emerson CSI/Bently Nevada monitoring systems (3500, 6500, 1900, ADRE, System 1 data collectors using appropriate interfaces) and other systems using the MIL-C-5015 connector standard for vibration inputs.

Function: Extends the distance between the sensor and the monitoring system input module without degrading the sensitive analog vibration signal. It connects between the sensor's integral cable and the system input.

Important Distinction:

Integral Cable: The cable permanently attached to the sensor (like the 5m cable on your PR6423-011-081).

Extension Cable (CA6423): This separate cable, used to lengthen the connection after the sensor's integral cable.