| 产品简介： |
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| Steel processors use water to cool bearings on the |
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| rollers of their continuous casting machines. If the |
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| casting machine loses water flow, the bearings will fail. |
| Alarms are required to notify casting machine operators |
| of this crucial loss of flow condition. The T21 flow |
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| switch is installed in each cooling water line to ensure |
| this critical low-flow alarm. |
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| The T21 can be used to monitor lube oil on bearings |
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| and gears in rolling mills; and since a single gear costs |
| several hundred thousand dollars, its protection is vital |
| to the operation of the plant. |
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| The T21 can also monitor the flow of cooling water on |
| pump seals in steel plants and furnaces. |
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| 详细说明： |
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| l Wide operating process |
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| temperature range of |
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| -100 to 392oF |
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| l Removable, plug-in electronics |
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| board |
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| l Free of all moving parts that |
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| can stick, coat or fail |
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| l Self-heating sensor design |
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| l Application flexibility |
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| l Simplifies wiring |
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| l High reliability |
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| l Improves response time and |
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| sensor durability |
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| Input Power 115 VAC or 230 VAC, 50/60 Hz |
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| 24 VDC (nominal) |
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| Output Type 5A DPDT @ 250 VAC |
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| Humidity 99% Non-condensing |
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| Accuracy +0.5% of set point - 50oF range |
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| Set Point Range Gases 0.5 to 500 feet/second |
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| (Flow) Liquids 0.01 to 5 feet/second |
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| Repeatability +1.0% of set point |
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| Response Time 0.5 to 10 seconds |
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| Sensor Length 2 inches to 120 inches* |
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| Enclosure Environmental Rating NEMA 4 |
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| Conduit Connection 3/4” NPT(F) |
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| Stability T emperature compensated |
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| over entire range |
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| Ambient T emperature Range -40 to 140oF |
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| (-40 to 60oC) |
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| Process T emperature Range -100 to 392oF |
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| (-70 to 200oC) |
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| Process Pressure Range Vacuum to 3000 psig |
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