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Catalog excerpts
![Continuous Level Transmitters - 1](https://img.directindustry.com/pdf/repository_di/19944/continuous-level-transmitters-1069107_1m.jpg)
Continuous Level Transmitters Important Points! • Product must be maintained and installed in strict accordance with the National Electrical Codes, Gems technical brochure, XM-800/XMP-800 Analog Output (Proportional Voltage) instruction bulletin, and any applicable electrical code in the country in which the product is installed. Failure to observe this warning could result in serious injuries or damages. XT-800/XTP-800 Signal Conditioned Output (4-20mA, 0-5 VDC, 0-12 VDC) • For hazardous area applications involving such things as (but not limited to) ignitable mixtures, combustible dust and flammable materials, use an appropriate intrinsically safe interface device. • Warning: To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing. • The pressure and temperature limitations shown on the individual catalog pages and drawings for the specified level sensors must not be exceeded. These pressures and temperatures take into consideration possible system surge pressures/ temperatures and their frequencies. Designed for continuous liquid level sensing, GEMS transmitters are considered "components". • Selection of materials for compatibility with the media is critical to the life and operation of GEMS level sensors. Take care in the proper selection of materials of construction, particularly wetted materials. • Electrical entries and mounting points in an enclosed tank may require liquid/vapor sealing. • Physical damage sustained by the product may render it unserviceable. Operating Principle Meter (Optional) The XM/XT-800 utilizes reed switch/magnet technology. A magnet-equipped float rises or lowers with corresponding liquid level. The magnetic field generated from the float Return Policy Cancellations and returns are accepted up to 30 days from date of order. You must contact our Returns Department for a Return Authorization (RA) number. Then return goods, freight prepaid, in the original container and include original packing slip. C.O.D. returns are not accepted. Gems Sensors reserves the right to apply restocking or cancellation charges. Limits of Liability: In no circumstances shall Gems Sensors be liable for special, consequential or exemplary damages of any kind or character, including contract, tort, and strict liability in tort and contract. Equipment sold by Gems Sensors is not intended for use in a nuclear installation, nor shall it be used as a "Basic Component" as same is defined under Part 21, Title 10 of the Code of Federal Regulations. In the event of such use, you agree to indemnify and hold us harmless from any and all subsequent liabilities and responsibilities which might arise in connection with such use. Sealed Hollow Tube actuates a series of reed switches mounted within a sealed hollow tube. The series of reed switches is combined with resistors to form a voltage divider. When a regulated DC voltage is applied to an XM-800, the Gems Sensors, the seller, warrants its products to be free from defects in material and workmanship in normal use and service for a period of one year from date of shipment. Gems Sensors reserves the right and option to refund the purchase price in lieu of repair or replacement upon evaluation of the returned original part. Modification, misuse, attempted repair by others, improper installation or operation shall render this guarantee null and void. Imo Industries Inc., Gems Sensors, makes no warranty of merchantability or fitness for a part or purpose. resulting voltage output is directly proportional to liquid level. An XT-800 is an XM-800 with a signal conditioned output, for use in applications that require unregulated input voltage or current output. Installation / Mounting Units operate normally in any attitude, from vertical to a 30° inclination, up or down. Thread Treatment Sealing: When threading metal threads into a metal coupling , pipe sealant or Teflon tape is recommended. Due to potential compatibility problems, when sealing plastic threaded units, a compatible pipe sealant such as "No More Leaks" from Permatex is recommended. Tightening (Plastic to Metal): When threading a plastic sensor into a metal coupling, the installer should use a suitable wrench and tighten the threads 1 to 1-1/2 additional turns past handtight. Over-torquing of the threads will result in damage to the plastic mounting plug. (Inside the U.S., call 1-800-847-5691 TOLL-FREE) P/N 179685 Rev. F Tightening (Metal to Metal): When threading a metal sensor into a metal coupling, the installer should use a suitable wrench and tighten the threads 1-1/2 turns past
Open the catalog to page 1![Continuous Level Transmitters - 2](https://img.directindustry.com/pdf/repository_di/19944/continuous-level-transmitters-1069107_2m.jpg)
Wiring Diagrams Note: For hazardous area applications, use an appropriate intrinsically safe interface device. XM-800 Wiring Diagram Analog Output (Proportional Voltage) 4-20 mA Tank Level Transmitter Output: Proportional Voltage Junction Box Signal Conditioner 0 - 5 VDC Output 1/2" Trade Size (both Ports) Ground Terminal B. Adjust both the null and span potentiometers at approximately mid-range. (Figure 1) C. Wire as shown per Figure 2, connecting a jumper wire in place of the black and white probe wires. Connect an ammeter in series to monitor loop current. Apply power to loop. Adjust...
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