Model AMT Dewpoint Transmitter
3Pages

Dewpoint Transmitter for General Applications Features and Benefits Ultra-high capacitance aluminium oxide sensor delivers unsurpassed sensitivity, speed of response, accuracy, repeatability, stability, and long service life Unique Automatic Calibration (AutoCal) span correction feature Various dewpoint ranges available from -120 °C to +20 °C IP66 / NEMA 4 Weatherproof Protection Optional Sensor Holder/Sample Cell for optimum sampling conditions Supplied with a calibration certificate traceable to National and International Humidity standards Compact 2-Wire 4-20 mA Loop Powered Dewpoint Transmitter DS4000 Hygrometer AMT Dewpoint Transmitter is a 2-wire 4-20 mA loop-powered transmitter that continuously measures moisture in process gas or compressed air. The 4-20 mA linear output signal can be factory configured for any of the following moisture units:°C or °F dewpoint, ppm(V), ppb(V), g/m3, and lb/MMSCF. At the heart of the AMT Dewpoint Transmitter is our ultra-high capacitance aluminium oxide sensor, which delivers unsurpassed sensitivity, speed of response, accuracy, repeatability, stability, and long service life. Every unit is supplied with a Calibration Certificate traceable to International Humidity Standards, guaranteeing accuracy to ± 2 °C dew point. The unique Automatic Calibration (AutoCal) feature is standard on all AMT Transmitter models and allows the user to conduct span corrections to ensure optimum accuracy between laboratory calibrations. AutoCal is operated using two small buttons on the side of the body. AMT is designed to withstand a maximum pressure of 35,000 kPa (350 bar) and extreme environmental conditions. The rugged stainless steel construction provides protection to IP66 / NEMA 4X. The AMT Transmitter is extremely easy to install and operate, requiring little or no maintenance. The advanced DS4000 or the standard DS1200 Hygrometers can display dewpoint in a range of units up to 1000 meters from the AMT Transmitter with the appropriate cable. AMT - Dewpoint Transmitter Technical Data Transmitter Type Sensing Element Output Signal Power Supply Dewpoint Ranges Electromagnetic Compatibility (EMC) Accuracy Repeatability Operating Temperature (Ambient and Process) Operating Pressure (Process) Operating Humidity (Ambient) Storage Temperature Field Calibration 2-Wire 4-20 mA Loop Powered Dewpoint Transmitter Ultra-High Capacitance – Aluminium Oxide Type Linear 4-20 mA with selectable engineering units and fault indication 12-28 Vdc Reverse Polarity Protected Between -120 °C to +20 °C (-184 °F to +68 °F) dewpoint. See How to Order on page 3 Complies with BS EN ICE 61326-1 ± 2 °C dewpoint (UK National Physical Laboratory traceable for range -90 °C to +20 °C) Better than ±0.3 °C dewpoint -20 °C to 60 °C From 1 kPa (0.01 bara) to Maximum 35,000 kPa (350 bara) Maximum 95 %RH Non-Condensing -20 °C to 70 °C AutoCal span check and correction are performed using two buttons on the Transmitter body. Locked in normal operating mode to avoid tamper. We recommend AutoCal is re

Factory Calibration Sample Flow Rate Cable Terminations Cable Mechanical Connection Isolation Transmitter Body Sensor Protection Probe Material (Wetted Parts) Ingress Protection Manufacturer’s Warranty Supplied with a calibration certicate traceable to National and International Humidity standards. We recommend annual laboratory calibration Flow independent but ideally 2 to 5 litres per minute. Max: 25 litres/min IP66 / NEMA 4X rated, size C, DIN EN 175301 connector at the Transmitter and other end terminated with bootlace ferrules Supplied with 2m standard cable. Nominal diameter 3.4 mm,92...

Transmitter Range: Example: CAB069-AMT-[10] for 10 metres. Longer cables are charged at per meter increments up to 1000 metres. NOTE: ppm, ppb, g/m & lbs/MMSCF ranges are stated at atmospheric pressure. AMT Transmitter can be configured to provide corresponding ranges for operation at other constant pressure. This must be stated at time of order. 3 For a longer cable length with connecting plug, simply enter the required length after the part number above: The AMT Transmitter comes complete with 2 metres of connecting cable and connector plug as standard. Advanced Display with more...