DS200DMCAG1AAA | GE Speedtronic Module | In Stock

Description

Product Introduction

The GE DS200DMCAG1AAA is a base configuration analog combination I/O module for the Mark V Speedtronic turbine control system. It provides 4 analog inputs and 4 analog outputs with standard 16-bit/14-bit resolution. This is the cost-optimized version of the DMCAG1 platform, identical hardware to DMCAG1 but with no factory precision calibration.

Core advantage: The AAA suffix provides the same core functionality as DMCAG1 (4 in, 4 out, bank isolation) at lower cost by omitting the individual factory calibration certificate. For non-critical control loops (tank level, temperature monitoring, pressure indication), the standard ±0.1% input / ±0.2% output accuracy is sufficient. Field data shows this board has the same 0.4% annual failure rate as the standard DMCAG1.

Key Technical Specifications

Key Selling Points & Differentiators

• Lower cost – no calibration certificate – Same hardware as DMCAG1, but without individual factory calibration. Typically 15-20% less.
• Same 4 in / 4 out density – No reduction in channel count. Saves VME rack space versus separate I/O modules.
• Field calibratable – You can perform your own calibration using Toolbox (procedure provided). No hardware limitations.
• 16-bit inputs / 14-bit outputs – Same resolution as standard DMCAG1. Adequate for non-critical loops.
• Future upgradable – Purchase individual calibration service later to achieve certified ±0.1% accuracy.
• Live tested for basic functionality – Inputs tested at 0 V, 5 V, 10 V. Outputs tested at 0 V, 5 V, 10 V.
• 30-day warranty with cross-ship – I/O failure? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DMCAG1 (standard) and DS200DMCAG1AAA (base config)?
A: Calibration certification. DMCAG1 includes individual factory calibration certificate (NIST traceable). DMCAG1AAA has no certificate – accuracy is typical (±0.1% input, ±0.2% output) but not guaranteed per board. For ISO 9001 applications requiring certified accuracy, use DMCAG1. For non-certified applications, AAA is sufficient.

Q: Can I calibrate the AAA board myself?
A: Yes – using GE Toolbox software, you can perform a field calibration (requires precision voltage source, 6.5-digit meter). After calibration, accuracy matches DMCAG1 (0.1%/0.2%). We provide the calibration procedure free.

Q: How do you test the AAA board on refurbishment?
A: We test basic functionality: each input reads within ±0.2% (not 0.1%), each output within ±0.3%. We do not provide a calibration certificate. If a board fails the basic test (e.g., 0.5% error), we calibrate it (no extra charge) and re-test. About 5% of incoming AAA boards need calibration.

Q: I see an AAA board with a yellow sticker near the terminal block. What does that mean?
A: The yellow sticker indicates the board was tested and found to be within DMCAG1 (certified) accuracy (±0.1%/0.2%) despite being AAA. This is a bonus – you get certified performance at base price. We do not charge extra for yellow-sticker boards; they are randomly distributed.

Q: My AAA board reads 0.3% high on input channel 1 (outside typical spec). Can I return it?
A: The AAA board has no guaranteed accuracy – only “typical” values. However, we can calibrate it for you at no charge (you pay shipping both ways). After calibration, it will meet ±0.1%. Or you can upgrade to DMCAG1 (certified) for the price difference ($45). Contact us.

Q: How do I identify a counterfeit DS200DMCAG1AAA?
A: Genuine boards have “DMCAG1AAA” printed on the edge connector label. The ADC is Analog Devices AD7732 (24-bit sigma-delta). The DAC is Analog Devices AD5668 (16-bit). Counterfeits often use lower-grade chips. We photograph the ADC and DAC on every board. The absence of a calibration sticker on the back is normal – AAA boards have no sticker.

Q: Can I use the AAA board for fuel valve control (critical loop)?
A: We do not recommend it. Fuel valve control requires certified accuracy (±0.1% typical may be 0.2% worst-case). Use DMCAG1 (certified) or DMCAG1A (high precision). The AAA is for monitoring and non-critical control (tank levels, temperature, pressure indication).

Q: Does the AAA board have the same isolation as DMCAG1?
A: Yes – 1,500 V bank isolation. No difference.

Q: What is the expected life of the AAA board?
A: Same as DMCAG1 – 10+ years. The lack of calibration does not affect reliability. Only accuracy is affected.

Q: Do you offer a version with conformal coating for offshore use?
A: Yes – special order DS200DMCAG1AAB (acrylic coated, AAA configuration). Lead time is 14-21 days. Cost adds 55. For offshore, also specify gold-plated terminal block (25 extra). The AAA is popular for offshore monitoring applications where certified accuracy is not required.

ACS355-03E-05A6-4
ACS355-03E-07A3-4
ACS355-03E-08A8-4
ACS355-03E-12A5-4