GE DS3800HIMA Printed circuit board

GE DS3800HIMA Printed circuit board 

Part Number DS3800HIMA Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark VI/VIe Function Module Availability In StockDS3800HIMA is an isolation board developed by GE. It is a part of Mark IV control system Features Factory drilled near or in board corners Built with multiple integrated circuits. HP69137 DIP, AM26LS30 Dip dual differential integrated circuits, and AM26LS33 quad differential receivers are examples. LM309K transistor was used in its construction. This is a single silicon chip 5V regulator. 

The LM309K is TTL and DTL compatible, has an output current of more than 1A, and is equipped with thermal overload protection. Includes a Bicron 218A4819P2 transformer Capacitor: 708d1 8803D 200V and another capacitor marked 708A1 m/c 100V 5.0+ 10% 8942. Single amber LED Ground System All control commons are wired to a single termination bar mounted on insulated stand-offs at the top of the right side wall. Shields are connected to shield bars on individual I/O modules via wires. 

They are then wired to a single termination bar at the bottom of the right side wall, which is stand-off-insulated from the panel case. Ground straps connect the shield and control common termination bars to a single ground bar at the bottom of the right side wall, directly below the shield termination bar. This bar is bolted to the metal easel, and its ground lug must be connected to the plant ground grid using a cable no larger than #4 AWG. At the installation site, earth ground is an electrical mat or grid buried in moist earth, or a series of conducting rods driven a sufficient distance into the earth and electrically connected together. To protect personnel and equipment, it is used to shunt stray electrical currents from machinery, building structures, and electrical equipment to ground.

ABOUT THE DS3800HIMA

The DS3800HIMA printed circuit board from GE has been manufactured as part of the Speedtronic/Mark IV system. This system has been created for gas and steam turbine control and has been specifically designed to limit downtime due to electronics failure by using integrated microprocessors using distributed control. The Mark IV performs a variety of functions, including air, fuel and emissions control, and can protect the turbine system against unsafe operating conditions.

The DS3800HIMA is designed as an isolation board.  It has the following specifications:

factory drilled near or in three corners of the board

built with multiple integrated circuits. This includes HP69137 DIP, AM26LS30 Dip dual differential integrated circuits, and AM26LS33 quad differential receivers.

built with one transistor, marked LM309K. This is a 5V regulator on a single silicon chip. The LM309K is compatible with TTL and DTL, has an output in excess of 1A, and is designed with thermal overload protection.

built with two smaller transistors

includes a Bicron transformer 218A4819P2

built with multiple capacitors, including a polyester capacitor marked 708d1 8803D 200V, and another capacitor marked 708A1 m/c 100V 5.0+ 10% 8942.

built with one amber LED

built with multiple resistors and diodes.

Instructions and warnings related to the operation of the product:

The following specifications must be strictly observed:

 The technical specifications and typical applications of the product system must be strictly observed.

 PERSONNEL TRAINING: Only trained personnel may install, operate, maintain or repair the product system. These personnel must be instructed on the

These personnel must be instructed and briefed on the conditions in the hazardous area.

 Unauthorised modifications: No modifications or structural changes may be made to the product system.

 Maintenance Responsibility: It must be ensured that the product system is used only under appropriate conditions and in a condition fully suitable for use.

 Working environment: The user must fulfil the specified environmental conditions:

Safety regulations

The following safety regulations must be fully observed when (maintenance) work is carried out on the product system:

1 Disconnect completely.

2 Secure to prevent reconnection.

3 Confirm that the installation has been completed.

4 Perform grounding and short-circuiting.