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Relative Humidity MeasurementRelative Humiditysensors were one ofSontay’s first productsback in the 1970’s.We pride ourselves inproviding accurate andreliable RH & T sensorsand therefore ensurethat we are using thelatest and most precisetechnology available.Our new RH & T sensing range offer top class accuracy in measurement as well as thereliability expected from a Sontay product. The new housings make the range the mostaesthetically pleasing on the market.FEATURESTamperproof - sealedwith a screw or wireClick locking, hinged lidNot only do the housingsoffer superb IP protectionand robustness but theyalso have the added benefitof being easy to install.RH-1000Space RH & T SensorCompletely revised for the Sontay 1000 seriesspace housing, and using the latest high accuracyRH & T element, the RH-1000 has options suchas setpoint adjustment, momentary switch andfan speed selection, together with a multilinebacklit LCD display. A 0-10Vdc overridestatus input option is also available, allowingoccupancy indication on the display.0-10Vdc, 0-5Vdc or 4-20mA (loop or externallypowered) outputs for all measured values areavailable as standard. A custom output rangefor temperature can be requested, between–20 and +50°C (–4 to +122°F). A directlyconnected passive thermistor temperatureoutput is also available, as an alternative to thestandard active temperature output.FEATURES■■High stability and reliability■■Designed to be aesthetically pleasing■■Blends into the fabric of any building■■Developed using customer feedback and involvement■■Fully configurable LCD display option. Please contact the CustomerServices Team for more information.Part code DescriptionRH-1000-AH RH & T High Accuracy Transmitter (±2%)RH-1000 RH & T Transmitter (±3%)RH-1000-EN Enthalpy & Dewpoint Transmitter*Suffixes (add to part code)-T Direct resistive temperature output-SP2-wire, 11-1kΩ/0-10kΩ setpoint-MSMomentary switch-FS33-speed fan switch-FS55-speed fan switchSPECIFICATIONActive Outputs: Voltage 0-10Vdc @ 4k7Ω min, 0-5Vdc @ 4k7Ω minCurrent4-20mA @ 250Ω minOptional Passive PTC/NTC Element Any Sontay restrictive type*Outputs: Setpoint 2-wire 11-1kΩ/0-10kΩ, linearOverride VFCFan Speed 3 position Resistive5 position ResistiveOutput Ranges: RH 0-100%Temperature 0 to 40°C (32 to 104°F) as standard (othersavailable on request: Range of –20 to+50°C / –4 to 122°F)Enthalpy –20 to +250 kJ/kg (–8.59 to +107.48Btu/lb)Dewpoint –50 to +50°C (–58 to +122°F)Power Supply: 0-10Vdc 12 - 26Vac or 16 - 26Vdc @ 60mA max4-20mA20 - 26Vdc only @ 70mA maxTemp. Accuracies: ±0.3°C (0.54°F) ( 20 to 40°C / 68 to 104°F)Ambient: Temperature 0 to 50°C (32 to 122°F)RH0 to 95% RH, non-condensingHousing material: ABS (flame retardant)Dimensions: 115 x 85 x 28mm (4.53 x 3.35 x 1.10”)Weight:180g (0.40 lb)*Notes:1. -T version uses a thermistor element for direct measurement oftemperature. Please specify thermistor type when ordering.2. When using the -T option, they are not compensated for internal heating.3. Please see page 72 for Thermistor Types and Compatibility Chart.4. RH-1000-EN outputs only enthalpy and dewpoint values.Part code DescriptionSuffixes (add to part code)-LCDIntegral LCD display for RH and temp.-TRCustom temperature output rangeAccessoryGASKET Insulating gasket (pack of 10)Data sheet: RH-1000.pdfVolume Price Breaks are applicableUnit Price (5+)RH-1000-AHRH-1000Please see price list& Interfaces Pressure Relative Humidity Wireless Devices Temperature Valves & ActuatorsUK Tel. +44 (0) 1732 861200 · Int. Tel. +44 (0) 1732 861225 · UK Fax +44 (0) 1732 861201 · Int. Fax +44 (0) 1732 86122649