HEW INPUT POWER Voltage ModelClass 2; 12 to 24 Vdc or 24 Vac mA ModelClass 2; 12 to 24 Vdc AC Voltage Tolerance±10% AC Frequency50/60 Hz Max. Inrush Current after 1 msec (mA version) 25 mA OUTPUT mA Output4 to 20mA, 2-wire, not polarity sensitive mA Max. Loop Resistance500 Ω at 24 Vdc input voltage; 250 Ω at 12 Vdc input voltage Voltage Output0 to 5 V or 0 to 10 V (jumper selectable) Voltage Min. Load Resistance5 kΩ Voltage Min. Sinking Current0.2 mA HUMIDITY RH ElementDigitally profiled thin-film capacitive, non-removable Accuracy±2%, 3%, or 5% (10 to 90% RH, 20 to 30 °C) Temperature Effect (Outside 20° to 30°C) ≤0.1% RH per °C Response Time (to 90% change at 20°C) 110 sec Annual Drift≤1% Output Scaling0 to 100% RH HEW Standard Series wall mount humidity transmitters offer high performance in an easy to install housing at an affordable price. The thin-film capacitive sensor element provides high accuracy and performance, great long-term stability, and full recovery from saturation. Temperature sensing options are also available. The wall housing was created using sophisticated thermal analysis techniques for optimum airflow. It is ideal for schools and other applications requiring exceptional durability and a discrete appearance. All Standard models come with a standard one-year warranty. * *The CE mark indicates RoHS2 compliance. Please refer to the CE Declaration of Conformity for additional details. EMC Conformance: Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU. SPECIFICATIONS TEMPERATURE OPTION Active Output Accuracy±0.5 °C (±.9 °F) Active Output Temp Scaling10 to 35 °C (50 to 95 °F) Self-Heating Error (Resistive temperature only) ≤±0.5 °C at 20 to 30 °C (68 to 86 °F); ≤±0.75 °C outside of 20 to 30 °C (68 to 86 °F) OPERATING ENVIRONMENT Operating Temperature0 to 50 °C (32 to 122 °F) Operating Humidity0 to 100% RH non-condensing (Unit will recover from saturation) HOUSING MaterialABS plastic with UL V-0 5VB Flame Class Mounting HolesUS and European junction box WARRANTY Limited Warranty1 year AGENCY APPROVALS RH & temperature Monitor humidity and temperature with a single device… reduces installation costs Low profile Housing is low-profile…perfect for schools and museums Sensor options Semiconductor temperature transmitter, or popular thermistor/RTD sensors available APPLICATIONS • HVAC economizer control • Managing energy systems • Facilitating ASHRAE standards for environmental control 800.354.8556 | +1 503.598.4564 | sales@veris.com | intl@veris.com TM Humidity Monitoring | Standard Wall Humidity Sensors HEW SERIES 2%, 3%, and 5% Accuracies HQ0001720.G 0117Power Source AC/DC Digital Control RH In Temp In RTD Temp/RTD RH GND PWR RTD Temp/RTD RH GND PWR Power Source AC/DC Digital Control RH In Thermistor In Thermistor In T- T+ RH- RH+ Power Source DC Digital Control RH Return Temp Return T- T+ RH- RH+ Power Source DC Digital Control RH Return Thermistor Thermistor 3.2" (82 mm) 1.3" (34 mm) 4.9" (123 mm) OutputUS or EUTemp.Sensor TypeTemp CertAccuracy M = 4-20mA V = 0-5 Vdc/0-10 Vdc A = Temp. Transmitter B = 100R Platinum, RTD C = 1k Platinum, RTD D = 10k T2, Thermistor E = 2.2k, Thermistor F = 3k, Thermistor G = 10k CPC Thermistor H = 10k T3, Thermistor J = 10k Dale, Thermistor K = 10k with 11k shunt, Thermistor M = 20k NTC, Thermistor N = 1800 ohm TAC, Thermistor R = 10k US, Thermistor S = 10k 3A 221 Thermistor T = 100k, Thermistor U = 20k “D”, Thermistor W = 10k T2 high accuracy, Thermistor Y = 10k T3 high accuracy, Thermistor HEW T = Temp X = No Temp (Stop here) Examples: HEW3MST HEW Without Temp: With Temp: Stop Here = Standard S 2 = 2% 3 = 3% 5 = 5% C 3VSX DIMENSIONAL DRAWING 0-5V/0-10V MODELS, TEMPERATURE TRANSMITTER Wiring Diagram 0-5V/0-10V MODELS, TEMPERATURE TRANSMITTER Wiring Diagram 4-20 mA MODELS, TEMPERATURE TRANSMITTER Wiring Diagram 4-20 mA MODELS, THERMISTOR Wiring Diagram ORDERING INFORMATION Blank = None 1 = 1 pt cal* 2 = 2 pt cal* *Not available with W and Y high-accuracy thermistors. Humidity Monitoring | HEW Series HQ0001720.G 0117Next >