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PHW
designs and builds Relay Calibration Units to
allow customers to perform simple Go/No-Go testing of a variety of
industry standard relays. The computer-controlled test bench provides
for complete test control and automatic test documentation.
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PHW Code
Rate Generators / Decoders offer solid state designs that
replace older relays. They handle multiple code rates
(50, 75, 120,
180, 270, 420)
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Vital Loss of Shunt Timer:
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Solid-state timer to delay pickup of track repeater relay.
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Field or factory adjustable run times.
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No field maintenance required.
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Voltage range: 8 to 16VDC.
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Temp range: -40° to 70° C.
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Timing range: 1 sec. to 99 min., 99 sec.
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Power Resistor Assembly
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PHW repairs, inspects, calibrates, and rebuilds wayside equipment (including older, relay-based products) according to the original manufacturer's specifications.
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