Power: +5V DC @ 0.9A, +15V DC @ 0.25A (slightly higher than HIMA)
Scan Rate: 100ms per channel (standard)
Coating: Basic conformal coating (suffix B) – single-layer acrylic
Temp Range: 0°C to +60°C
Mounting: 6U VME Eurocard, single-slot
Diagnostics: LED status per channel (over-range, under-range, open circuit)
Advantages & Features
Higher channel density – supports up to 16 single-ended channels, doubling the capacity of HIMA (8 differential)
Flexible configuration – channels can be set as differential (8) or single-ended (16) via jumpers, adapting to different wiring schemes
Versatile input support – accepts 4–20mA, 0–10V, or ±10V signals, compatible with most industrial transmitters
Isolated channels reduce ground loop interference and protect the backplane from field wiring faults
Basic B-grade coating provides light moisture and dust protection for indoor installations
Compatible with Mark IV backplanes and some VIe systems (with adapter)
Front-panel LEDs for per-channel status (over-range, under-range, open-circuit)
Application Cases
Turbine inlet guide vane (IGV) position feedback – 4–20mA from LVDT transmitters in larger turbines with more feedback points
Fuel gas pressure and flow monitoring – multiple 4–20mA transmitters in gas turbine fuel skids
Steam pressure and flow monitoring – for steam turbine throttle, extraction, and reheat lines
Lube oil pressure and temperature – multiple transmitters on bearing and sump systems
Retrofit projects replacing obsolete GE DS3800H series analog boards where more channels are needed
Competitor Comparison
vs. DS3800HIMA (A variant): Higher channel density (16 single-ended vs. 8 differential) – HIMB offers more channels at the cost of slightly higher power consumption
vs. DS3800HIMA1C1D (C1/D variant): HIMB has basic firmware vs. C1’s advanced features; HIMB offers more channels but lower accuracy and slower scan
vs. DS3800HFPB (thermocouple board): Handles different signal types – HIMB is for 4–20mA/voltage, not thermocouples
vs. DS3800HSCB (high-speed analog input): HIMB offers more channels but slower scanning; HSCB is for dynamic signals
vs. ABB TB711 : Similar channel count, but ABB offers higher resolution (14-bit) and PROFIBUS/Modbus communication
vs. Siemens 7MH410 : Similar functionality, but Siemens offers HART protocol support on some variants
vs. Woodward 8440-2015 : Similar channel count, but Woodward offers more flexible configuration software
vs. Honeywell 51304638 : Similar channel count, but Honeywell offers better long-term stability (±0.05%)
Selection Suggestions
Critical: Confirm input signal type (4–20mA, 0–10V, or ±10V) and channel configuration (differential vs. single-ended) before installation – jumper settings must match your transmitters
Verify your backplane provides both +5V and +15V – this board requires both rails
Assess channel count – 16 single-ended channels cover larger turbine installations with more transmitters
Determine accuracy requirement – 0.1% is sufficient for most turbine process variables
Evaluate environmental conditions – B coating is suitable for clean, dry indoor installations; upgrade to C/D/G/H if needed
Order mating front connector (p/n may vary – confirm with GE)
For critical applications, consider used/refurbished units with 90-day warranty
Precautions
Critical: Do not exceed 30mA or ±30V on input channels – overvoltage may damage the ADC and isolation circuits
Critical: Use shielded twisted-pair cables for all analog inputs to avoid EMI – especially near VFDs or large transformers
Critical: Configure jumpers correctly for differential vs. single-ended wiring – incorrect settings will cause measurement errors
Ensure field power supply (+24V DC) for 2-wire transmitters is stable (if loop-powered)
Basic B coating does not protect against humidity or corrosive gases – upgrade to C/D/G/H if your environment has moisture or chemicals
Allow 30-minute warm-up before calibration
Store in ESD-safe packaging – edge connector is static-sensitive
Periodically verify channel calibration every 2 years against a certified reference
Do not hot-swap – Mark IV backplanes require power-off for insertion/removal
If replacing a similar board, confirm pinout compatibility – HIMB may differ from HIMA or other series in wiring assignments
The DS3800HIMB1B1B is a General Electric Mark IV Speedtronic turbine control board, an analog input module with a suffix code indicating: 16 single-ended or 8 differential channels (1), firmware revision B1 (B1), and basic environmental protection (B = single-layer conformal coating). The B1 firmware offers improved linearization and filtering compared to earlier A1 revisions, providing better noise rejection and signal stability. The B-grade coating provides basic moisture resistance for clean indoor applications.
The DS3800HIMA1C1D is a General Electric Mark IV Speedtronic turbine control board, an analog input module with a suffix code indicating: 8-channel differential input (1), firmware revision C1 (C1), and enhanced environmental protection (D = conformal coating with improved humidity and mild chemical resistance). The C1 firmware offers advanced linearization, filtering, and diagnostic capabilities beyond B1, while the D-grade coating provides superior moisture resistance, making this variant suitable for demanding indoor and semi-outdoor applications requiring reliable analog signal processing.
The DS3800HIMA1B1B is a General Electric Mark IV Speedtronic turbine control board, an analog input module with a suffix code indicating: 8-channel differential input (1), firmware revision B1 (B1), and basic environmental protection (B = single-layer conformal coating). The B1 firmware offers improved linearization and filtering compared to the earlier A1 revision, providing better noise rejection and signal stability for industrial transmitters. The B-grade coating provides basic moisture resistance for clean indoor applications.
The DS3800HIMA1A1B is a General Electric Mark IV Speedtronic turbine control board, an analog input module with a suffix code indicating: 8-channel differential input (1), firmware revision A1 (A1), and basic environmental protection (B = single-layer conformal coating). The A1 firmware provides standard linearization and scaling for 4–20mA and voltage signals, while the B-grade coating offers basic moisture resistance for clean indoor applications.
The DS3800HIMA is a General Electric Mark IV Speedtronic turbine control board, an analog input module designed for processing high-level analog signals such as 4–20mA, 0–10V, or other process variables. Unlike the thermocouple-specific HFP series, the HIMA series handles standard industrial transmitters (pressure, flow, level, position) and features isolated input channels for noise immunity. The “A” suffix typically indicates basic configuration with standard environmental protection.
The DS3800HHTB1D1D is a General Electric Mark IV Speedtronic turbine control board, a high-density discrete input/output module with a suffix code indicating: hybrid I/O configuration (1), firmware revision D1 (D1), and enhanced environmental protection (D = conformal coating with improved humidity and mild chemical resistance). The D1 firmware offers optimized scan response and diagnostic capabilities, while the D-grade coating provides superior moisture resistance, making this variant suitable for demanding indoor applications requiring high-current relay output capability with moderate environmental resilience.
The DS3800HHTB is a General Electric Mark IV Speedtronic turbine control board, a high-density discrete input/output module within the HHT series. The “B” suffix indicates basic conformal coating for standard indoor protection. This board is specifically designed for relay output and discrete input interfacing, typically handling higher-current loads than the HHR series, making it suitable for driving solenoid valves, contactors, and annunciator panels.
The DS3800HHRB1D1E is a General Electric Mark IV Speedtronic turbine control board, a high-density discrete input/output module with a suffix code indicating: configurable I/O points (1), firmware revision D1 (D1), and enhanced environmental protection (E = conformal coating with improved humidity and mild chemical resistance, superior to D). The D1 firmware offers optimized scan response and diagnostic capabilities, while the E-grade coating provides better moisture resistance than D, making this variant suitable for demanding indoor applications requiring reliable discrete I/O handling in moderately challenging environments.
The DS3800HHRB1D1D is a General Electric Mark IV Speedtronic turbine control board, a high-density discrete input/output module with a suffix code indicating: 16–32 configurable I/O points (1), firmware revision D1 (D1), and enhanced environmental protection (D = conformal coating with improved humidity and mild chemical resistance, better than B/C). The D1 firmware offers optimized scan response and diagnostic capabilities, while the D-grade coating provides superior moisture resistance, making this variant suitable for demanding indoor and semi-outdoor applications requiring reliable discrete I/O handling.
The DS3800HHRB is a General Electric Mark IV Speedtronic turbine control board, a high-density discrete input/output module or specialized interface board within the HHR series. Unlike the thermocouple input-focused HFP series, the HHR series typically handles digital I/O, relay outputs, or valve/solenoid driver functions. The “B” suffix indicates basic conformal coating for standard indoor protection. This board interfaces with field devices such as limit switches, proximity sensors, solenoid valves, and annunciator panels.
The DS3800HFXE1D1C is a General Electric Mark IV Speedtronic turbine control board, a thermocouple input module with a suffix code indicating: custom configuration (X), 24-channel differential input (1), firmware revision D1 (D1), and enhanced environmental protection (C = conformal coating with improved humidity and mild chemical resistance). The “X” denotes a specialized non-standard configuration, while “D1” firmware offers balanced mid-tier performance with reliable linearization and diagnostics. The “C” coating provides moderate moisture protection, making this variant suitable for applications requiring custom functionality with moderate environmental resilience.
