Edgetech DewTrak II Chilled Mirror Transmitter
Edgetech DewTrak II Chilled Mirror Transmitter
The Edgetech Instruments Model DewTrak II dewpoint/humidity transmitter is an optical chill mirror hygrometer designed to continuously measure the moisture content in gases. The instrument is powered by 24Vdc.
The DewTrak II uses the chilled mirror dewpoint temperature condensation principle to determine the water vapor concentration in gas mixtures, and a platinum resistance thermometer to accurately measure that temperature. Outputs include 4 to 20mA, 0 to 5 Vdc, or 0-10Vdc and an RS232 serial port as well as electrically isolated relay contacts.
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Typical applications include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments. 5-year warranty is valid for instruments purchased in 2021 and beyond.
The HMW90 series measures relative humidity and temperature in indoor environments, where high accuracy, stability, and reliable operation are required. The HMW90 is a flexible product family with a variety of options and features, both analog and digital output models are available. The sensors are exceptionally easy to configuration, install, and adjust in the field. Calculated humidity parameters (Td, x, h, Tw, a, T-Td).
Features
> Analog and digital outputs
> Easy installation, configuration, and field adjustment
> Humidity parameter options: relative humidity, dew point, mixing ratio, enthalpy, wet bulb temperature, dew point depression, and absolute humidity
> Full 0 … 100%RH measurement range
> Accuracy up to ±1.7%RH
> User exchangeable humidity and temperature module
> Traceable calibration, certificate included
> Available in two colors
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> TMW92 T transmitter, current output
> TMW93 T transmitter, voltage output
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The HMW90 and TMW90 transmitters are available in two color options: standard white and black.
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Specifications
- Big & easy to read display 80mm x 62mm
- 2-key operation Max/Min and Reset
- Measuring range temperature : -10°C to +60 °C
- Accuracy Temperature : ±1 °C from 0°C to 50°C otherwise ± 2 °C
- Measuring range humidity : 10% to 99% R.H
- Accuracy Humidity : ±5% RH from 30 to 75% RH otherwise ± 8%
- Unit size : L110 x W100 x D20.4 mm
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Edgetech DewMaster Chilled Mirror HygrometerEdgetech Instruments field-proven chilled mirror technology.
One, two or three stage sensors available – integral or remote from controller.
NIST traceable calibration certificate.
Depression range choice of either 45, 65 or 95°C . (one, two or three-stage cooling)
Automatic Balance Control (ABC)
Automatically corrects for most mirror contaminants.
Automatically restandardizes the instrument.
You choose time and interval of restandardization,for best convenience.
Increase the length of unattended operation.
Dual alarm capability
User programmable.
Can be set for latching or auto-reset mode.
Form C for greater versatility.
Serial and analog outputs.
RS232 communication with terminal, printer, or computer
Remote programming.
Data output such as dewpoint and alarm status.
0-5 VDC, 4-20 mA, 0-10 VDC, or 0-20mA
User scalable to drive peripheral devices.
Available simultaneously, one output per measurement parameter.
Scalable throughout the entire operating range of psychrometric variables.
Program via front panel or remote serial port.
Pressure transducer input for psychrometric variable.
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