Insertion Type Level Control- Series 105
Adjustable deadband, weatherproof enclosure
| Model Number | Switch Type | Body Material |
|---|---|---|
| 500TWT-7810=C553 500TWT-7810=C1-55 500TWT-7810=C216-55 500TWT-4815=C55 500TWT-4815=C1-55 500TWT-4815=C216-55 |
Snap Action Snap Action Snap Action Mercury Mercury Mercury |
Cast Iron Cast Steel 316 SS Cast Iron Cast Steel 316 SS |
Adjustable deadband makes Model 500 ideal for control of level in large or small tanks. Mounts directly to threaded fitting on tank. (Flanged mounting available on special order.) Stainless steel float operates hermetically sealed mercury switch or SP-DT snap action switch. Available in a variety of materials to match most petrochemical and industrial applications.
| Maximum Temperature: | 400°F |
|---|---|
| Maximum Pressure: | 200 PSIG |
| Process Connection: | 2 1/2" NPT |
| Electrical Rating: | Mercury Switch - 10A @ 120V., 5A @ 240 V., AC or DC. Snap Switch - 12A @ 120VAC., 5A @ 240 VAC. |
| Conduit Connection: | ¾" conduit |
| Minimum Specific Gravity: | 0.55 |
| Wiring Connections: | Mercury switch uses two independent SPST switches, four screw type terminals; two for normally open contact and two for normally closed contact. Snap switch has three screw type terminals-common, normally open and normally closed. |
| Set Point Adjustment: | By moving switch head up or down. Adjustable ±1.0" |
| Deadband Adjustment: | By adjustment of stop nuts on shaft inside armature tube. Standard adjustment is ¼". Adjustment to 3" possible. (These limits change if nonstandard float rod length is ordered) |
| Housing: | Heavy gauge steel, neoprene gasketed for outdoor use. |
| Float Rod Length: | 6" |
| Weight: | 10 lbs. |
SUGGESTED SPECIFICATIONS
Level switches shall be direct mount type with 2 ½" NPT connection. Units shall have weather-proof enclosures. Contacts shall be (hermetically sealed and mercury wetted)(snap action type). Switching mechanism shall be stainless steel with gravity return action. Stainless steel float shall actuate mechanism by magnetic linkage. Units shall be Mercoid Model No. 500TWT-(_ _ _ ).