Attractive and Rugged Packaging

All the models in our new Microline Series of Relative Humidity and Temperature transmitters look great in your building. Especially our space mount model with its low profile, contemporary styling.

But the real beauty of Microline Transmitters lies in their superior versatility, reliability, and performance.

You may choose space, duct, or outside air models with thermistor, RTD, or signal-conditioned temperature outputs. All models get a 10-point factory calibration against a National Institute of Standards and Technology (NIST) traceable standard, the highest quality calibration standard
available. Competitors use one- or three-point calibrations. Prewired base and plug-in electronics in the cover make installation quick and easy. Field-selectable outputs give you greater convenience and versatility and reduce your investment in transmitter inventory.

2%, 3%, or 5% Accuracy

Accuracy choices are 2%, 3%, or 5% at 20 to 95% RH. 1% accuracy is also available. Typical drift is less than 1% per year and all models can be field-calibrated to eliminate expensive downtime. And each Microline model comes with GEI’s proven bulk polymer RH sensor for maximum reliability and a two year warranty.

The Microline RH Transmitter Series. For price and performance, you won’t find anything better.

Easy to Install

Space and duct mount models have a pre-wired base; sensor and transmitter electronics are housed in the cover.

Wiring is connected to the terminal block in the base and the cover can be snapped into place at a later time. This feature is especially attractive when a transmitter will be incorporated into new construction because it lets the user mount and wire the unit without the sensor and electronics, thereby avoiding possible damage from rough handling or contamination from paint and dust.

Easy to Field-Calibrate

Calibration? You don’t have to incur the expense and inconvenience of sending your transmitters back to the factory. The new and improved, batterypowered Easycal Plus Handheld Calibrator/Portable RH Indicator makes it easy to perform quick, on-site, onepoint offset adjustment of the transmitter without interrupting operation. No tools or disassembly are required—just plug the Easycal Plus into the phone jack connector. The Easycal Plus displays values for both the transmitter and the environment, eliminating the need for additional reference devices. A user can check the transmitter’s operation and, if necessary, perform a one-point offset adjustment in about 60 seconds. It’s a very efficient way to save maintenance time and money while maintaining your transmitter’s accuracy.

User-Selectable Outputs

The sensor output signal is fieldselectable from 0-5 or 0-10 volt to 4-20 mA current in the RH-only version. The temperature output transmitter is available in voltage or current outputs. You save money because you reduce your sensor inventory and investment.

10-Point Factory Calibration

General Eastern automatically tests and calibrates each Microline Transmitter at 10 different points against a NIST-traceable standard. Calibration data are available on 2% accuracy RH units. Compare this with competitive models that are calibrated at three points—or less. This
10-point calibration ensures that you get maximum accuracy from your transmitters —right out of the box and into the future.

Proven, Reliable Sensor Technology

Each Microline features a bulk polymer resistive sensor. This sensor has been field-proven in hundreds of applications for more than a decade. As a result, you can expect long-term stability with minimal drift. And because the sensor is a bulk resistive device, it will not be affected by surface contamination in dirty environments. Versatile Temperature Measurement The Microline offers you a variety of temperature measurement options. Choose from a thermistor or RTD direct measurement or an RTD with signal conditioned voltage or current output. In addition, you can choose from a variety of standard temperature measurement ranges or you can specify a custom range to meet your specific application requirement.

Demanding Environment Applications

For challenging applications such as swimming pools, hospitals, labs and animal rooms, the Microline Transmitter is available with a new bulk polymer resistance sensor that has exceptional chemical resistance, especially to ammonia and chlorine. Consult factory.

Applications