Relative Humidity & Temperature Transmitters

Transcription

1 Relative Humidity & Temperature Transmitters High Temperature Models up to 150 C (300 F) Series 740 and 741 EMC Immunity to EN Series 741: 2-Wire 4-20mA Ouput Series 740: User- Selectable Signals User-Selectable Temperature s The Relative Humidity Transmitter continuously measures the ambient humidity and provides a linear output signal directly proportional to the Relative Humidity. The transmitter incorporates the latest technology for high accuracy and a compact, rugged design. Series 741 is a 2-wire transmitter providing a 4-20 ma output, using the same wires for supply and output. Series 740 is a 3/4-wire Transmitter and provides User-Selectable output signals like 0-1 V, 0-5V, 0-10V, 0-20 ma or 4-20 ma. The sensor is a high quality thin film polymer capacitor. A range-selectable integrated temperature transmitter is optional (no recalibration required!). Models are available for Wall-, Duct- or Remote- mount. The maximum tiptemperature for High Temperature Duct- or Remote-Mount is 150/C (300/F).

2 Dimensions Series 740 and 741 Transmitters Wall-Mount - Polycarbonate Housing IP65 Duct-Mount - Max. Temperature 60/C (140/F) - Polycarbonate Housing - Plastic tube High Temperature Duct-Mount - Metal Transmitter Housing - Max. Temperature tubekip 150/C (300/F) - Length 300 mm (11.8 ) or 500 mm (19.7 ) - Stainless Steel Tube

3 Selection guide Humidity & Temperature Transmitters Wall-Mount 2-wire Transmitter 3/4-wire Transmitter RH Transmitter HX-741-T-00 HX-740-T-00 RH + Temperature Transmitter HT-741-T-00 HT-740-T-00 Duct-Mount 2-wire Transmitter 3/4-wire Transmitter RH Transmitter HX-741-T-01 HX-740-T-01 RH + Temperature Transmitter HT-741-T-01 HT-740-T-01 High Temperature Duct-Mount 2-wire Transmitter 3/4-wire Transmitter RH Transmitter L=300 mm (11.8") HX-741-T-02 HX-740-T-02 RH + Temperature Transmitter L=300 mm (11.8") HT-741-T-02 HT-740-T-02 RH Transmitter L=500 mm (19.7") HX-741-T-03 HX-740-T-03 RH + Temperature Transmitter L=500 mm (19.7") HT-741-T-03 HT-740-T-03 Remote 2-wire Transmitter 3/4-wire Transmitter RH Transmitter, 7/8" - 14 UNF HX-741-T-04 HX-740-T-04 RH + Temperature Transmitter, 7/8" - 14 UNF HT-741-T-04 HT-740-T-04 RH Transmitter, miniature diam. 8 mm (.235") HX-741-T-05 HX-740-T-05 Standard equipped with a T-type humidity sensor. This sensor element has an improved performance and can be exchanged without recalibrating the transmitter. Response time of this sensor is 10 sec. typical (90% of range).

4 Accessories Accessories Protection cap ( max 150 C /270 F) A Protection cap with Teflon Dust Filter A Sintered Stainless Steel Dust Filter A Humidity Calibration Bottle 11% A Humidity Calibration Bottle 33% A Humidity Calibration Bottle 55% A Humidity Calibration Bottle 75% A Humidity Calibration Bottle 90% A Adjustable Fitting 3/4" NPT Stainless Steel A Aluminium Adjustable Flange diam. 80 mm (2.3 ) A

5 Specifications Series Wire Relative Humidity Transmitter % RH Working 5-95 % RH Output 4-20mA 25 C typ Standard ±2%RH Temperature drift typ. 0.05% RH/ C Power Supply 8-35 VDC Response time 60 sec. typical (90% of range) Stability ±2% RH, 24 Months typical depending on environmental conditions Supply influence ±0.01% RH / Volt typical Operating Temp. Housing C ( F) Operating Temp. Sensor-tip Remote/ SS Duct-Mount C ( F) 2- Wire Temperature Transmitter User-selectable Zero selection 10 C steps between -50 C C Span selection 10/50 C steps between C output 4-20mA Accuracy ±0.2 C typical Power supply 8-35VDC Supply influence ±0.01 C/Volt typical Series 740 3/4- Wire Relative Humidity Transmitter 0-100% RH Working 5-95% RH Output user selectable 0-1V, 0-5V, 0-10V (max 2 ma), 0-20 ma or 4-20 ma (standard setting: 0-10V) Temperature drift typ. 0.05% RH / C 25 C typ. ± 2% RH Power Supply VDC for 0-5 or 0-10 output ;8...35VDC for 0-1V or current output Response time 60 sec. typical (90% of ) Stability ± 2% RH, 24 Months typical depending on environmental conditions Operating Temp. Housing C ( F) Operating Temp. Sensor-tip Remote/ SS Duct-Mount C ( F) 3/4- Wire Temperature Transmitter User-selectable Zero selection 10 C steps between -50 C C Span selection 10/50 C steps between C Accuracy ± 0.2 C typical Power Supply VDC for 0-5 or 0-10V output; VDC for 0-1V Supply influence ± 0.01 C/Volt typical All specifications are subject to change without prior notice. DEVELOPMENT AND MANUFACTURING OF ELECTRONIC INSTRUMENTS INSTRUMENTS BV Burg. v. Campenhoutstraat 61 NL-4921 KR Made Phone sales@rense.nl The Netherlands Fax Internet