Level Controller0 pages

"MODEL409 Liquid LevelController nn

Automatic control of liquid level Solid-state sensing circuit Adjustable sensitivity 5-Year Unconditional Warranty

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DESCRIPTION SPECIFICATIONS

Model 409 >

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The Model 409 is a compact, socket-mount device for level control of conductive liquids. The internal relay is energized when operating power is applied. When the liquid level reaches the probe, the relay de-energizes. When the level drops below the probe, the relay will reset. A fixed, two second time delay prevents oscilla-
tion due to wave action. Probe cables may be shielded or unshielded. If the liquid container is made of a non-
conductive material, a common electrode is required. Other features include an LED indicator to show the output relay status and an adjustable sensitivity setting. Requires standard 8-pin octal socket (socket number 51X00120-01).

Operating voltages 24 VAC: 20-30 VAC, 50-400 Hz 120 VAC: 90-140 VAC, 50-400 Hz 230 VAC: 200-250 VAC, 50-400 Hz Power consumption 2.5W Transient Protection 2500VRMS for 10msec Probe voltage 2 VAC (logic level) Probe current 5mA maximum Sensitivity adjust 1K ohms-100K ohms Contacts SPDT Contact Rating 10A @ 240 VAC resistive Expected Relay Life Mech: 10,000,000 operations Elec: 100,000 at rated load Response Time 2 seconds Reset Time <1 second Reset Method Automatic Time delay accuracy 5% Operating Temp - 40Ѱ to 60 C Humidity Tolerance 0-97% w/o condensation >

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DIMENSIONS

Case Material ABS plastic Weight 4.5 oz. Max. >

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Telephone: Main - (918) 438-1220 Sales - (800) 862-2875 11440 East Pine Street Tulsa, Oklahoma 74116 Fax: (918) 437-7584 E-mail: sales@time-mark.com Internet: http://www.time-mark.com

nnDoc No. 87A189 12/00 Щ 2000

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