Humidity / Temperature Transmitter for High Humidity and Chemical Applications The highly accurate HLX33 series are designed for fast and reliable measurement of relative humidity / dew point temperature / absolute humidity / ...under the most demanding conditions. Neither condensation nor heavy chemical pollutions will affect prompt and reliable measurements. Process pressures as high as 100 bar (1450 psi) and continuous high humidity are also no problem for the HLX33 series. The core of the HLX33 series is the new monolithic measurement cell type HMC1, manufactured in thin-film technology Chemical contamination and also condensation will actually evaporate due to the innovative design of the HMC1 measurement cell. The monolithic construction of the sensor allows a fast return to normal conditions and a continuation of the measurement. Additionally, with the inimitable sensor coating the HMC1 measurement cell is even better protected against corrosive and short-circuit-causing conductive soils. Distinctive models and mounting versions allow the HLX33 series to be utilized in numerous applications: heated, monolithic measurement cell - Measurement of relative humidity during temporary condensation: the measurement cell is briefly heated, but very intense - Measurement of dew point temperature at continuous high humidity: the measurement cell is controlled and heated continuously - Measurement of relative humidity at continuous high humidity: the measurement cell is controlled and heated continuously; an additional temperature sensor is added - Measurement of relative humidity at high chemical exposure and average humidity: the measurement cell is briefly heated, but very intense - Measurement of relative humidity at process pressure up to 100bar (1450psi) and average humidity: the measurement cell is installed in a special high pressure probe The configuration software included in the scope of supply allows user friendly setup of the operation / sensor heating mode as well as selection and adjustment of the electrical outputs. Model C - remote sensing probe up to 120°C (248°F) D - remote sensing probe up to 180°C (356°F) E - remote sensing probe, pressure tight up to 20bar (300psi) I - remote sensing probe, pressure tight up to 100bar (1450psi) J - 2 remote sensing probes (RH-measurement), pressure tight up to 20bar (300psi) K - remote sensing probe (Td-measurement) pressure tight up to 20bar (300psi) Typical Applications pharmaceutical and food industry dryers for ceramics, wood, concrete, polyester, etc mushroom farms high-humidity storage rooms climate, test and curing chambers meteorology Environmental Conditions chemical pollution, temporary condensation chemical pollution, temporary condensation chemical pollution, temporary condensation chemical pollution, temporary condensation continuous high humidity and condensation continuous high humidity and condensation Features heated, monolithic measurement cell working range 0...100% RH / -40...+180°C (-40...356°F) measurement near condensation fast recovery after condensation chemical purge after chemical exposure pressure tight up to 100bar (1450psi) calculation of additional physical quantities optional sensor coating HL

Functions Measurement of humidity and temperature Calculation h, r, dv, Tw, Td, Tf, e 2 freely scaleable and configurable analogue outputs Remote sensing probe up to 20m (65.6ft) On-site adjustment for relative humidity and temperature LED indication of transmitter status / error diagnosis of probes RS232 for transmitter configuration via PC Configuration software Alternating display with MIN/MAX indication 2 freely configurable alarm outputs Removeable sensing probe Sensor protection with coating Pluggable electrical connections Data output via RS232 interface Data output via RS485 interface...

Connection Versions standard power supply+ analogue output power supply+ analogue output Sensing probes: code “cable length” code “probe length” HLX33-MFTEx Pressure tight probe up to 20bar Probe material: stainless steel code “cable length” code “cable length” code “probe length” code “probe length” HLX33-MFTCx HLX33-MFTDx Remote sensing probe Probe material: stainless steel Remote Probe: HLX33-MFTIx Pressure tight probe up to 100bar (1450psi) Probe material: stainless steel code “cable length” code “probe length” HLX33-MFTKx Remote sensing probe, pressure tight up to 20bar (screw connection...

Technical Data Measurement values Relative humidity 1) Humidity sensor heated, monolithic measurement cell HMC1 1) Working range 0...100% RH Accuracy*) (including hysteresis, non-linearity and repeatability, traceable to intern. standards, administrated by NIST, PTB, BEV...) -15...40°C (5...104°F) ≤90% RH ± (1.3 + 0.3%*mv) % RH 90% RH ± 2.3% RH -15...40°C (5...104°F) ± (1.4 + 1%*mv) % RH -25...70°C (-13...158°F) -40...180°C (-40...356°F) ± (1.5 + 1.5%*mv) % RH Temperature dependence of electronics typ. ± 0.01% RH/°C (0.0055% RH/°F) Response time with metal grid filter at 20°C (68°F) / t90 < 15s...

Technical Data for Options Display Alarm outputs graphical LC display (128x32 pixels), with integrated push-buttons for selecting parameters and MIN/MAX function 2 x 1 switch contact 250V AC / 6A 28V DC / 6A threshold + hysteresis: can be adjusted with configuration software switching parameters: freely selectable between RH T Td Tf Tw e r dv h Relative humidity Temperature Dew point temperature Frost point temperature Wet bulb temperature Water vapour partial pressure Mixture ratio Absolute humidity Specific enthalpy Working Range Humidity Sensor Relative humidity [%RH] The grey area shows the...

Ordering Guide Hardware Configuration Housing Type Model Filter Cable length (incl. probe length) Probe length Pressure tight feedthrough Interface1) 5) Display Alarm output1) ARC-Module1) 2) 4) Plug1) Sensing probe Coating sensor Supply voltage Software Configuration Physical parameters of outputs Type of output signal Measured value units T-Scaling Td-Scaling Tf-Scaling Tw-Scaling (in °C or °F) metal housing humidity PTFE stainless steel filter stainless steel sintered filter PTFE filter stainless steel grid filter(up to 180°C/ 356°F) 2m (6.6ft) 5m (16.4ft) 10m (32.8ft) 20m (65.6ft) 65mm (2.6”)...