Aerospace: Indicators

This rolling diaphragm indicator detects differential pressures as low as 5 psid +/- 0.5 psid up to 15 psid +/- 1.5 psid while maintaining a size compact enough to be mounted in a SAE-AS33514-8 port. High pressure sensing port is located radially on the OD just below the .750-16 UNJF mounting threads with the low pressure sensing port opposite and along the axis of the signal button. Signal: Visual. Reset: Manual.

Electrical and visual design couples MIL-S-8805 microswitch to the magnetic pop-out button. The mechanical motion of the pop-out button drives the snap acting SPDT microswitch. The switch can be wired for normally open or normally closed circuits. Hermetically sealed, gold contact switches recommended for all high temperature (to 500ºF) or low load applications (6 Volt, 0.010 amp circuit). Many mounting configurations and electrical connectors are available, or can be built to customer specification. Signal: Electrical and Visual. Reset: Manual (Automatic reset also available).

This indicator has a high pressure sensing port located at the bottom of the indicator, opposite and along the axis of the signal button. The low pressure sensing port is located radially. Signal: Visual. Reset: Manual.

Compact design provides a visual pop-out button signaling impending bypass. With the application of additional pressure, the indicator cracks to permit bypass. The standard unit designed for use with a 0-12 GPM flow rate, 50 psid +/- 5 psid actuation, 60 psid +/- 10 psid cracks with a 10 psid minimum between actuation and crack. High pressure sensing port is located at the bottom of the indicator, opposite and along the axis of the signal button. The low pressure sensing port and bypass openings are located. Signal and bypass functions are accomplished in a very small, lightweight package. The overall length of the indicator with bypass is 1.800″ with a 0.743″ OD. Signal: Visual. Reset: Manual.