Description

CAMERON AAP3798102-00131 Maestro General I/O Module (Compressor Controller)
CAMERON AAP3798102-00131 is a general input/output module of the Maestro series by Cameron (now part of Schlumberger). It is an upgraded/derivative model of AAP3798102-00130 and is specifically designed for compressor control and unit protection. It is widely applicable in scenarios such as oil and gas, power generation, and industrial air compressor stations.

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Core parameters
Brand: CAMERON (USA)
Model: AAP3798102-00131
Type: Maestro Universal I/O Module
Power Supply: 24VDC ±20%, approximately 50W
I/O Configuration:
Analog Inputs: 13 channels (4-20mA, 12-bit, ±0.5%) + 1 channel for motor current (0-5A AC) + 1 channel for 24V monitoring
RTD Input: 10 channels (PT100, 3-wire)
Analog Outputs: 4 channels (4-20mA)
Digital Inputs: 10 channels (switch contacts, sinking 24VDC)
Digital Outputs: 11 channels (24VDC, 1A per channel, 6A total load)
Communication: Modbus TCP/IP, RS-485 (Modbus RTU)
Operating Temperature: -20°C ~ +70°C; Storage: -40°C ~ +85°C
Protection: IP20 (compatible with NEMA 12/4X cabinet)
Size / Weight: Approximately 240×150×80mm, 1.8–2kg
Status: Factory discontinued, brand new original stock available,

12-month warranty

Key Features
Specialized control for compressors: Built-in PID and unit protection logic, suitable for centrifugal / screw / reciprocating compressors, covering all parameters including pressure, temperature, flow, and vibration for closed-loop control.
High-density I/O integration: 13 analog + 10 RTD + 10 DI + 11 DO, a single module can complete signal acquisition and execution drive for both the compressor body and auxiliary systems.
Industrial-grade anti-interference design: wide temperature range, EMC shielding, anti-vibration, suitable for dusty and highly electromagnetic interference environments such as oil and gas fields and air compressor stations.
Easy integration and maintenance: standard DIN rail installation, clear terminal markings; supports SCADA remote monitoring, fault diagnosis, and online parameter modification.