Dynalco SW-200B Speed Switch发动机超速保护开关
engine overspeed protection Switch

Dynalco SW-200B提供可靠的发动机超速保护。它有三个可调继电器设定值：第一个是超速。两个辅助设备的用途包括曲柄断开、发电机磁场闪烁和速度监测。设定值是现场可编程的，可以在不超速的情况下进行测试。外壳是密封的。SW-200B速度开关提供三个可调继电器设定点，用于发动机超速保护、曲柄断开、发电机磁场闪烁和速度监测，并具有完全的现场编程能力。

Dynalco SW-200B provides reliable engine overspeed protection. It has three adjustable relay setpoints: number one is overspeed. Uses for the two auxiliaries include crank disconnect, generator field-flashing, and speed monitoring. Setpoints are field-programmable and can be tested without overspeeding. Housing is gasketed and sealed.SW-200B Speed Switch provides three adjustable relay set points for engine overspeed protection, crank disconnect, generator field flashing, and speed monitoring with full field-programming capability.

Dynalco SW-200B Speed Switch

Dynalco SW-200B Speed Switch

Inputs: Senses signal frequency from magnetic pickup or AC signal generator.
Outputs: Three relays (speed setpoints) and one 0-1 mA proportional DC output.
Field-programmable: Four DIP switches provide a variety of frequency input and overspeed relay logic configurations. Also three trim potentiometers to adjust setpoint range, and one potentiometer to adjust the proportional output.
Circuit: High-reliability. Virtually immune to electrical and RFI noise.
Test/Verify: Permits testing without overspeeding.
Case: Sealed and gasketed.

资料下载:
SW-200B Data Sheet
SW-200B Manual

Product Code: SW-200B

SW-200B Speed Switch

2-Year Warranty

规格参数：
??
Inputs: Senses signal frequency from magnetic
pickup or AC signal generator.
??
Outputs: Three relays (speed setpoints) and
one 0-1 mA proportional DC output.
??
Field-programmable: Four DIP switches provide
a variety of frequency input and overspeed
relay logic configurations. Also three trim
potentiometers to adjust setpoint range, and
one potentiometer to adjust the proportional
output.
??
Circuit: High-reliability. Virtually immune to
electrical and RFI noise.
?? Test/Verify: Permits testing without overspeeding.
?? Case: Sealed and gasketed.
SPECIFICATIONS

Environment
?? Temperature: (storage & operation)
–40oF to +185oF (–40oC to +85oC).
?? Vibration:
?? MIL STD 810C, Method 514.2, Curve P,
Procedure V.
?? MIL STD 202F, Method 201A (10-55 Hz,
continues displacement of 0.06 in. P-P).
?? Screws on all access holes are predrilled
for safety wire.
?? Humidity: SAE J1211, paragraph 4.2.3., figure
3A; 95% relative humidity at +150oF (+66oC).
?? Dust: MIL STD 810C, Method 510.1, Procedure 1,
Steps 1,4,5,6. (175 ft/min velocity: 0.3 g/ft3 density;
<176 M average particle size).
?? Sealing: Can open and reseal case without
damaging watertight integrity. O-ring sealed
access holes for setpoint and proportional output
adjustments. Case complies with NEMA Standard
250, Types 3, 4, 12, and 13.
?? Moisture protection: Component board entirely
dip-coated with moisture repellent sealant.
Functional
Power: 9–40 Vdc, 300 mA maximum.
Withstands:
?? 800 volts peak reverse voltage.
?? 80 volts peak forward voltage, 0.1
second maximum duration.
?? 350 volts peak forward voltage, 1 milli-second
maximum duration.
Standard signal frequency ranges: 0–11,200, 0–
5,000, 0–1,000Hz. Field-selectable using built-in DIP
switches.
Input Signal:
?? Minimum signal requirement: 50 mVrms
at frequencies below 1 kHz; 0.4 Vrms at 11
kHz.
?? Maximum signal: 70 Vrms.
?? Minimum input resistance: 10 kW.