The CSA approved Model 577066 temperature transmitter measures resistance changes as a function of temperature. Using a three wire 100Ω platinum RTD sensor, the temperature is proportionally converted to a 4 to 20 mA output current. The transmitter is loop powered and housed in an explosion-proof conduit enclosure. A fitting on the enclosure allows a variety of RTD probe and thermowell lengths to be attached for close-couple mounting. The 577066 is rated intrinsically safe for Class 1, groups A, B, C, D.

• PUSH BUTTON Calibration
• RTD Sensor Input
• In-Head Mounting
• Drift Free Digital Linearization
• LED Over Range Indication
• Low Cost
• Re-Rangeable Without A Computer

A simple push button operation ranges and calibrates the SEM203P 4 to 20 mA transmitters eliminating the need for soldering jumpers.

The SEM203P in-head transmitter incorporates the latest digital technology to ensure accurate drift free linearization. It connects to any standard RTD temperature sensor and converts the output to a linear 4 to 20 mA output signal, providing a level of performance at a cost that was not possible with earlier analog types.

High accuracy and stability with the flexibility of reduced stock and the quick and easy way of bench re-ranging makes the SEM203P the ideal choice for the majority of RTD sensing requirements.

The SEM203P is linearized to comply with all common RTD sensor standards ie 0.00385, 0.003916 etc. without affecting accuracy as the ZERO & SPAN is set to a particular sensor type.

The Easytemp TSM 470F and TSM 470P RTD transmitters provide a compact 4 to 20 mA solution for temperature measurement. Sanitary design meets 3–A sanitary standards. TSM 470P sensor is electro–polished (Ra ≤ 20 µin, or 240 grit) to meet requirements of the pharmaceutical industry. The TSM 470F is polished to a Ra ≤ 20 µin (150 grit) finish. Measuring range from –60 to 300 °F.

The compact transmitter consists of a complete 4–wire Pt 100 Class A sensor, Tri–Clamp® process connection, and built–in electronics with an M12 x 1 microconnector.

• Sensor and electronics potted to protect against condensation

• 4 to 20 mA loop–powered small, compact design

• M12 plug–in microconnector

• Sanitary process connections

• HART Protocol
• Universal Input
• Also Computer Programmable
• Sensor Burnout Detect
• Isolation To 500VAC
• FM Approved

The SEM310 is an encapsulated in-head temperature transmitter that replaces the standard connecting block in the sensor head. It is small in size yet has a performance superior to other larger and more expensive transmitters. Also available in DIN rail mount format packaging SEM315.

The SEM310 and SEM315 have full HART communications protocol which allows the user to quickly and easily download information or interrogate the device enabling the following:

• Simple re-ranging of sensor type and range.
• Easy on site re-calibration.
• Self documentation.
• Operation with proprietary software packages such as AMS Plant Web™ and Cornerstone™.
• Remote configuration on the 4 to 20 ma loop with a hand held communicator or with a PC & HART modem.
• Online Digital Communication concurrent with 4 to 20 ma analog signal.

All the standard HART universal and common usage commands are fully implemented, with other device specific commands that enable access to the enhanced performance parameters of the SEM310 and SEM315.

The Easytemp TSM 470G compact thermometer is intended for simple measuring tasks from –60 to 300 °F. The ideal operating location is in tanks and pipes that are not exposed to any high pressures or extreme temperatures.

The compact thermometer consists of a complete 4–wire Pt 100, Class A sensor and a NPT process connection. The built–in electronics can be programmed via a PC using the M12 plug–in connector.

• Sensor and electronics potted to protect against condensation

• Highly accurate all–in–one system

• 4 to 20 mA loop–powered small, compact design

• M12 plug–in microconnector

• Threaded process connections

The 577004 loop powered digital indicating transmitter measures RTD resistance changes as a function of temperature, outputs a proportional 4-20mA signal and provides a digital display of the temperature in degrees C or F. The transmitter is housed in an explosion-proof enclosure certified to NEMA-4/7/9 Class 1, Groups B, C, D; CL2, Groups E, F, & G and includes two 1.5" NPT wiring ports. The enclosure is constructed of copper-free aluminum with a blue epoxy finish. The spring-loaded RTD sensor is integrally mounted to the enclosure permitting close-coupled mounting of the transmitter at the point of measurement. A variety of RTDs and thermowell lengths are available.