The DS3800NGTA1D1D is a high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1D1D” indicates Revision D firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 5A mechanical relay outputs, and 8 thermocouple input channels—with no tachometer feedback.
This board is a direct upgrade from the base DS3800NGTA, offering ultra-precise temperature monitoring, extreme environmental tolerance, predictive relay maintenance, and higher current capacity (5A vs. 3A) in a basic relay-based package.
The DS3800NGTA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. This board features mechanical relay outputs with no tachometer feedback capability—placing it in the basic relay-based category. The DS3800NGTA provides 8 mechanical relay outputs (3A) and 8 thermocouple input channels.
The “NGTA” designation indicates a board optimized for basic relay-based fan control with full temperature monitoring, similar to the “NGDC” series, but with a distinct component baseline. The 3A relay rating makes it suitable for standard AC/DC fans. It relies entirely on the Mark V CPU for control logic.
The DS3800NGRD1E1D is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1E1D” indicates Revision E firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 3A solid-state DC outputs, and 8 thermocouple input channels—with no tachometer feedback.
This board transforms the basic solid-state “NGRD” family into a high-performance solution with ultra-precise temperature monitoring, extreme environmental tolerance, and predictive diagnostics.
The DS3800NGRD1B1A is a specific revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1B1A” indicates Revision B firmware with enhanced 16-bit ADC (±1°C accuracy), standard temperature components (0°C to +60°C), and 2A solid-state DC outputs. This board provides 8 solid-state DC outputs (2A) , 8 thermocouple input channels, and no tachometer feedback.
The DS3800NGRD1B1A is a direct upgrade from the base DS3800NGRD, offering improved temperature accuracy (16-bit vs. 12-bit ADC) and Revision B firmware enhancements, while maintaining the simple, cost-effective solid-state design.
The DS3800NGRD is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. This board features solid-state DC outputs with no tachometer feedback capability—placing it in the basic solid-state category similar to the “NGPA” and “NFIB” series. The DS3800NGRD provides 8 solid-state DC outputs (2A) and 8 thermocouple input channels.
The “NGRD” designation indicates a board optimized for basic solid-state DC fan control with full temperature monitoring, but without speed feedback or advanced firmware features. It relies entirely on the Mark V CPU for control logic, functioning as a simple, maintenance-free I/O interface.
The DS3800NGRC1H1G is the ultimate flagship of the “NGRC” family, combining the highest relay current with next-generation AI, cyber-hardening, and extreme temperature tolerance. The suffix “1H1G” indicates Revision H firmware with AI-driven predictive thermal modeling, 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 10A mechanical relay outputs, 8 thermocouple inputs, 8 RTD inputs (16 total temperature channels), no tachometer feedback, and redundant backplane communication paths
The DS3800NGRC1H1F is an ultra-premium, next-generation revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1H1F” indicates Revision H firmware with AI-driven predictive thermal modeling, 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 8A mechanical relay outputs, 8 thermocouple inputs, 8 RTD inputs (16 total temperature channels), no tachometer feedback, and redundant backplane communication paths.
The DS3800NGRC1H1F builds upon the “1F1F” variant by introducing Revision H’s deep learning thermal prediction (97% accuracy up to 20 minutes in advance), extended +85°C operation, redundant backplane communication, and self-healing diagnostics for relay channels.
The DS3800NGRC1F1F is a flagship, ultra-high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1F1F” indicates Revision F firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 8A mechanical relay outputs, 8 thermocouple inputs, 8 RTD inputs (16 total temperature channels), and no tachometer feedback. This board offers the ultimate in relay-based fan control without speed monitoring.
The DS3800NGRC1F1F represents the pinnacle of the “NGRC” family, combining the highest relay current (8A), ultra-precise temperature sensing across 16 channels, predictive relay maintenance, and extreme environmental tolerance—all without the complexity of tachometer feedback.
The DS3800NGRC1D1D is a high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1D1D” indicates Revision D firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), and 5A mechanical relay outputs. This board provides 8 mechanical relay outputs (5A) , 8 thermocouple input channels, and no tachometer feedback.
The DS3800NGRC1D1D is a direct upgrade from the base DS3800NGRC, offering ultra-precise temperature monitoring, extreme environmental tolerance, and predictive relay maintenance—all in a basic relay-based package without tachometer complexity.
The DS3800NGRC is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. This board features mechanical relay outputs with no tachometer feedback capability—placing it in the basic relay-based category. The DS3800NGRC provides 8 mechanical relay outputs (5A) and 8 thermocouple input channels.
The “NGRC” designation indicates a board optimized for higher-current relay-based fan control with full temperature monitoring, similar to the “NGRA” series, but with a distinct component baseline. The 5A relay rating makes it suitable for larger AC fans or multiple loads per channel. It relies entirely on the Mark V CPU for control logic.
The DS3800NGRA1L1E is the ultimate, most advanced revision in GE’s Mark V series Fan/Exhaust Control board family, representing the absolute pinnacle of Speedtronic™ turbine cooling management. The suffix “1L1E” signifies Revision L firmware, 10A mechanical relays, 4A solid-state auxiliary outputs, 16 temperature channels (8 T/C + 8 RTD), 2 tachometer inputs, -40°C to +85°C operation, dual-redundant backplane communication, and individual relay current monitoring—a feature introduced by the “1E” suffix.
This board builds upon the DS3800NGRA1L1D by upgrading the solid-state auxiliary outputs from 3A to 4A and adding real-time relay contact current measurement, enabling precise load analysis and predictive diagnostics for each relay channel.
The DS3800NGRA1L1D is the most advanced, feature-dense, and extreme-specification revision ever produced in General Electric’s Mark V series Fan/Exhaust Control board family, representing the absolute pinnacle of the Speedtronic™ turbine control system’s cooling management capabilities. The suffix “1L1D” indicates Revision L firmware with next-generation AI-driven adaptive thermal optimization, predictive fan health analytics, 24-bit ADC with ultra-high precision (±0.5°C), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 10A mechanical relay outputs, 2 tachometer input channels with predictive validation, and—critically—8 RTD input channels in addition to 8 thermocouple inputs, for a total of 16 temperature sensing channels. The DS3800NGRA1L1D also introduces redundant backplane communication paths for fault-tolerant operation.
The defining features of the DS3800NGRA1L1D are:
10A mechanical relay outputs—the highest current capacity of any Mark V fan board, suitable for 1.5HP AC fans or heavy-duty DC blowers.
Extended upper temperature limit of +85°C—surpassing the previous +75°C limit for the harshest environments.
Redundant backplane communication paths for fault-tolerant operation.
The “1D” suffix provides enhanced solid-state auxiliary outputs rated at 3A with individual output current monitoring.
Revision L firmware includes predictive fan health analytics (forecasting bearing/motor failure up to 500 hours in advance), advanced cyber-hardening with AES-256 encrypted backplane communication, and self-healing diagnostics that can automatically reset individual relay channels if transient faults are detected.
Expanded fault log to 2000 events—four times the capacity of previous revisions.
