Dynatrol® Sealed & Suspended Level Switch
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| The Type CL-10DJ Sealed and Suspended Dynatrol® Detector is designed for high point level detection of bulk solids. For problem applications, such as those associated with angle-of-repose, this configuration provides reliable operation in hard to reach locations. |
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Versatile:
The sealed and suspended construction is available for the DJ and G-Series Dynatrol® Detectors.
No Adjustment Required:
All level switch components have been constructed for long operating life and require no field adjustments.
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Principle of Operation:
The Dynatrol Detector is suspended to the point of desired level detection. When the probe
is uncovered, the drive coil drives the rod into a self-sustained mechanical oscillations at the natural resonant frequency of the rod. The pick-up coil, located opposite to the drive coil, is excited by these mechanical oscillations and produces an a-c signal voltage. This signal voltage indicates the rod is uncovered that a low level exists.
When the process media covers the rod, a dampening of the rod oscillations occurs. Consequently, the magnitude of the rod oscillations are greatly reduced and the output from the pick-up coil drops to a very low value, indicating that the rod is covered - that a high level exists. |
The On/Off signal from the Dynatrol Level Detector
operates a SPDT relay in the EC-501A Control Unit. The contacts of this relay can be used to actuate alarms, indicator lights or process
control equipment. |
EC-501-A Control Unit |
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Dynatrol® Sealed & Suspended Specifications |
- Explosion Proof: CSA NRTL/C approved for Class 1, Group D, Division 1
- Temperature Rating: 350°F
- Pressure Connection: 3/4 ” NPT
- Conduit Connection: 1/2 ” NPT
- Material: Stainless Steel
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EC-501A Control Unit Specifications |
- Explosion Proof: CSA NRTL/C approved for Class 1, Group D, Division 1
- Voltage Supply (Nominal): 120 volts - 50-60Hz
- Also Available in 240 VAC and 24 VDC
- Power Consumption: 5 VA
- Temperature Rating: 125°F Maximum
- Contacts: SPDT 2A @ 120 VAC (Non-Inductive)
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