High-Precision Humidity / Temperature Transmitter for HVAC Applications Transmitters of the EE21 series have been developed for highprecision measurement of relative humidity and temperature. EE21 transmitters are available for wall and duct mounting with or without the very useful snap inmounting kit, which allows a quick and easy exchange of the transmitter. Outputs can be selected between voltage and current. An optional radiation shield providing a forced ventilation is recommended for use in outdoor applications. Special protection coating for the sensing element (code - HC) permits the permanent use in very polluted environments. Humidity Two-point Adjustment With an easy routine via the push-buttons “UP” and “DOWN” on the circuit board the user can perform a fast and accurate two-point adjustment of relative humidity. Typical Applications measuring range 0...100% RH accuracy ±2% RH traceable calibration working range -40...60°C (-40...140°F) wettable excellent long term stability green houses storage rooms swimming halls meteorology Technical Data Measuring values Relative Humidity Sensor Analogue output appropriate 0...100% RH Working range Accuracy at 20°C 1) Hysteresis 10% - 80% - 10% Temperature dependence of electronics Temperature dependence of probe HC1000 or HC1000C (with coating) 0-1V -0.5mA < IL < 0.5mA 0-5V / 0-10V -1mA < IL < 1mA 4-20mA (two wires) RL < 500 Ohm 0...100% RH ± 2% RH (0...90%) ± 3% RH (90...100%) Traceable to international standards, administrated by NIST, PTB, BEV... < 2% RH typ. 0.03% RH/°C (0.02% RH/°F) typ. 0.03% RH/°C (0.02% RH/°F) Temperature Sensor Analogue output -40...60°C (-40...140°F) Pt1000 (tolerance class A, DIN EN 60751) 0-1V -0.5mA < I < 0.5mA 0-5V / 0-10V -1mA < I < 1mA 4-20mA (two wires) R < 500 Ohm L L Temperature dependence of electronics

Current consumption_for DC supply: typ. 5mA_for AC supply: typ. 15mA„ M16x1.5 or connection plug (only snap-in models N + M) cable 0 4.5 - 10 mm (0.18 - 0.39”)_ membrane filter, sintered stainless steel filter, metal grid filter, PTFE filter Electrical connection Cable gland Sensor protection_ Electromagnetic compatibility Temperature ranges 1) Please refer to working range of HC1000! Industrial Environment_ working temperature probe: working temperature electronics: storage temperature: housing: protection class: Connection Diagram Ordering Guide MODEL 1) Combination snap - in mounting and model...