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TT-325Part codeDescriptionActive OutputDuct Averaging SensorsThe TT-325 temperature sensors are used formeasuring temperature in ducts where anaverage reading across the air flow is required.Units contain either high quality thermistor,nickel or platinum sensing elements which arehoused in a ‘Nylon 12’ tube, spaced at 0.5m(1.64 ft) intervals along the standard 2.2m(7.22 ft) length.SPECIFICATIONOutput types:Thermistor ResistiveCurrent 4 to 20mAVoltage 0 to 10VdcProbe: Material Nylon 12Dimensions 2.2m x 8mm dia. (7.22 ft x 0.31”)Housing: Material ABS (flame retardant)Dimensions 74 x 70 x 50mm (2.91 x 2.76 x 1.97”)Ambient range:–10 to +90°C (14 to 194°F)Protection:IP65Weight:220g (0.49 lb)TT-325-CVO 4-20mA/0-10Vdc selectable output,Output ranges:–10 to +40°C (14 to 104°F) or–10 to +110°C (14 to 230°F) – selectableTT-325-CVO-C 4-20mA/0-10Vdc selectable output(custom temp. scaling), Calibration tocustomer specification in the range of–10 to +90°C (14 to 194°F)Suffix (add to part code)-5M 5m (16.40 ft) probe lengthPart code DescriptionPassive OutputTT-325-A 10K3A1, Trend, Seachange, Cylon, DistechTT-325-B 10K4A1, Andover, Delta ControlsTT-325-C 20K6A1, HoneywellTT-325-D PT100A, SerckTT-325-E PT1000A, CylonTT-325-F Ni1000A, SauterTT-325-G Ni1000A/TCR (LAN1), SiemensTT-325-H SAT1, SatchwellTT-325-K STA1, Landis & StaefaTT-325-L TAC1, TACTT-325-M 2.2K3A1, Johnson ControlsTT-325-N 3K3A1, AlertonTT-325-P 30K6A1, DraytonTT-325-Q 50K6A1, AmbiflexTT-325-R 100K6A1, York >40°CTT-325-S SAT2, SatchwellTT-325-T SAT3, SatchwellTT-325-W SIE1, SiebeTT-325-Y STA2, Landis & StaefaTT-325-Z 10K NTC, CarelData sheets: TT-325.pdf ∙ TT-CVO.pdfNote: Custom lengths available.TT-535External Black Bulb SensorsThe TT-535 sensor is used for radiant heat inoutdoor spaces. Black bulb temperature sensorsare used to calculate comfort temperaturewhich is specified as the average of theconductive temperature and the radianttemperature. Units contain either a high qualitythermistor, platinum or nickel sensing element.T comfort = (T radiant + T conductive)2SPECIFICATIONOutput types:Thermistor ResistiveCurrent 4 to 20mAVoltage 0 to 10VdcAmbient range:–10 to +90°C (14 to 194°F)Material: Housing ABS (flame retardant)Black bulb Anodised aluminiumDimensions: Housing 55 x 90mm (2.17 x 3.54”) dia.Black bulb 17.5 x 37mm (0.69 x 1.46”) dia.Protection:IP65Weight:160g (0.35 lb)Part codeTT-535-CVOTT-535-CVO-CDescriptionActive Output4-20mA/0-10Vdc selectable outputOutput ranges:–10 to +40°C (14 to 104°F) or–10 to +110°C (14 to 230°F) – selectable4-20mA/0-10Vdc selectable output(custom temp. scaling), Calibration tocustomer specification in the range of–10 to +90°C (14 to 194°F)Part code DescriptionPassive OutputTT-535-A 10K3A1, Trend, Seachange, Cylon, DistechTT-535-B 10K4A1, Andover, Delta ControlsTT-535-C 20K6A1, HoneywellTT-535-D PT100A, SerckTT-535-E PT1000A, CylonTT-535-F Ni1000A, SauterTT-535-G Ni1000A/TCR (LAN1), SiemensTT-535-H SAT1, SatchwellTT-535-K STA1, Landis & StaefaTT-535-L TAC1, TACTT-535-M 2.2K3A1, Johnson ControlsTT-535-N 3K3A1, AlertonTT-535-P 30K6A1, DraytonTT-535-Q 50K6A1, AmbiflexTT-535-S SAT2, SatchwellTT-535-T SAT3, SatchwellTT-535-W SIE1, SiebeTT-535-Y STA2, Landis & StaefaTT-535-Z 10K NTC, CarelData sheets: TT-535.pdf ∙ TT-CVO.pdfNote: See page 61 for Space Black Bulb Sensors.Air & Water Flow Air Quality & Gas Detection Controllers Input / Output Modules Water & Energy Metering Peripherals56www.sontay.com · Email sales@sontay.com