Woodward DSS-2 8800-1001 rev-c Dual-Port Speed Switch

Power supply parameters: The power input is 9-30VDC, with reverse polarity protection. In terms of operating current, when both channels are on, it is 100mA at 12V and 100mA at 24V; when both channels are off, it is 50mA at 12V and 50mA at 24V.

Relay parameters: Equipped with two sets of C-type relays. For resistive loads, the rated current is 1-10A, and it can withstand inductive loads at 28VDC. It has independent common terminal (C), normally closed terminal (NC) and normally open terminal (NO) contacts. The factory setting is standard relay logic (the relay is de-energized when below the set speed), and it can also be modified to reverse relay logic through relevant tools.

Speed monitoring parameters: Monitor engine speed through magnetic pickup (MPU) input. The MPU input is positive and negative terminals, with a minimum of 2VAC at 1000Hz. The factory programming range is 2500-5000Hz, which can be modified to 10-10000Hz or use rpm as the unit. It is equipped with two multi-turn potentiometers for speed setpoint adjustment, and can also be set through the serial interface with calibration tools.

Operating environment parameters: The operating temperature is -40°F to +185°F (approximately -40°C to +85°C). The vibration resistance is 6g at 40-2000Hz. It has anti-ultraviolet and chemical corrosion resistance properties, meets UL 94 V-0 flame retardant standards, and adopts a potted design, suitable for harsh environments.

Dimensions and weight: The specific length, width and height are not given in detail for the dimensions, but there are dimensions related to mounting holes, such as 2 holes of 4.4mm, etc. The weight is approximately 0.38 pounds (0.17kg).