Temperature and humidity transmitter with graphic display

HD2817T

Temperature and humidity transmitter with graphic display for industrial and HVAC monitoring, measuring RH and Pt100 temperature with calculated dew point, data logging, RS232/RS485 and 3 analog outputs.
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Introduction

Demanding HVAC and industrial environments need more than a simple transmitter when measurement, visualization and control must work together. HD2817T measures temperature and relative humidity, calculates dew point, wet bulb temperature, absolute humidity and mixing ratio, and displays three values or real-time graphs on a backlit graphic LCD.
 
Interchangeable probes help keep monitoring running with minimal interruption. Each factory-calibrated probe includes a SICRAM 2 module that stores calibration data, allowing replacement with virtually no interruption to the process. Vertical and remote cable probe versions are supported, including specialized probes for compressed air and pipe applications.
 
Integration is flexible for control cabinets, monitoring systems and networks. HD2817T provides three independently configurable analog outputs, RS232/RS485 communication, optional relay outputs and a data logger with 9000-sample memory. Power supply versions are available for 24 Vac/dc or 9...240 Vac.

Graphic insight
Backlit LCD shows three values or real-time graphs for fast checking.
Probe interchange
SICRAM 2 probes store calibration data for replacement with minimal interruption.
Flexible outputs
3 analog outputs plus RS232/RS485 support monitoring and control systems.
Built-in logging
Stores 9000 samples in up to 256 sessions with selectable intervals.

Features

Measured and calculated quantities

The instrument measures Pt100 temperature and relative humidity, then calculates dew point, wet bulb temperature, absolute humidity and mixing ratio.

Graphic LCD display

The HD2817T series uses a 128 x 64 pixel backlit LCD to show numerical values or graphs of detected quantities.

Analog output configuration

The three analog outputs can be configured as 0...20 mA, 4...20 mA, 0...10 V or 2...10 V and associated with measured or calculated quantities.

Serial communication

The instrument includes a main RS232/RS485 port and an auxiliary RS232 port for temporary PC connection.

Relay control option

Optional relay versions provide two SPDT operating relays and one SPST normally open alarm relay for ON/OFF control and alarms.

Data logging

The data logger records all parameters and output status at intervals from 1 s to 4 min, with circular memory management.

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