Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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Product Manual
Moisture measurement online dew-point meter with pressure compensation
Features
Measurement range -110...+20 °C (-166...+68 °F) dew point
Dew point or moisture content output
Accuracy ±1 °C (±1.8 °F) dew point
Pressure indication and compensation
Touch screen reconfiguration
3 x 4...20 mA outputs and 4 relay outputs
Modbus RTU over RS485 output
Choice of AC or DC Power Supply
Sample block and cable included
Traceable 13-point calibration certificate
Easy to install and configure, the versatile touch screen Easidew Advanced Online Hygrometer can measure and display dew point, moisture content, and pressure. This display provides analog, digital, and 4 programmable relay alarm outputs with a front screen or software app display configuration.
With high performance 1% accuracy for use in Compressed Air and Gas Generation applications.
Specification
| Performance Specifications | |
| Measurement Range | -110...+20 °C (-166...+68 °F) dew point; -100...+20 °C (-148...+68 °F) dew point |
| Accuracy * |
±1 °C from -60 to +20 °C dew point (±1.8 °F, -76...+68 °F dp) ±2°C from -100 to -60 °C dew point (±3.6 °F, -148...-76 °F dp) |
| Response Time | 5 mins to T95 (dry to wet) |
| Repeatability | 0.5 °C (0.9 °F) dew point |
| Sensor Calibration | Traceable 13-point calibration certificate |
| Auxiliary Pressure Input | 45 MPa (450 barg/6527 psig) maximum |
| Pressure Compensation | Live 4...20 mA pressure transmitter or fixed programmable value |
| Moisture Content Scales | Automatic compensation for ppmV, lbs/MMscf, g/m3 units |
| Relay Alarm Type/Rating | 2 x Form A, 2 x Form C 30 V DC 5A Namur compliant programmable relay contacts for process and fault conditions |
| Electrical Specifications | |
| Sensor Input Signal | Modbus RTU over RS485 |
| Online Output Signals |
3 x 4...20 mA channels; Modbus RTU over RS485; 4 programmable relay alarms |
| Online Outputs | Dew point, Moisture Content, Pressure |
| Maximum Analog Output Scaled Range | Dew point: -110...+20 °C (-166...+68 °F); Moisture content in gas: 0...3000 ppmV |
| Online Supply Voltage | 85...265 V AC; 18...30 V DC |
| Online Power Consumption |
AC Power: 7.5 VA DC Current: 170 mA @24 V DC |
| Electrical Safety | BS/EN61010-1: 2010 |
| Operating Specifications | |
| Operating Temperature | Sensor: -40...+60 °C(-40...+140 °F); Process Monitor: 0...50 °C (+32...+122 °F) |
| Compensated Temperature Range |
Sensor: -20...+50 °C (-4...+122 °F); Process Monitor: not applicable |
| Storage Temperature | Sensor: -40...+60 °C (-40...+140 °F); Process Monitor: 0...+60 °C (+32...+140 °F) |
| Operating Pressure |
45 MPa (450 barg/6527 psig) maximum |
| Sensor Flow Rate |
1...5 Nl/min mounted in standard sampling block; 0...10 m/sec direct insertion |
| Mechanical Specifications | |
| Ingress Protection |
Sensor: IP66 in accordance with standard BS EN 60529:1992+A2:2013; NEMA 4 protection in accordance with standard NEMA 250–2014 Process Monitor: IP54 & NEMA Type 2 & 12K front panel only |
| System Materials |
Sensor & Sample Block: 316 stainless steel Process Monitor: UL Rated ABS - EpsotechAB AN2 V0 |
| Dimensions |
Sensor: L=119 x ?27 mm / L=4.69” x ?1.06” (no connector cable) Process Monitor: 1/8 DIN Case, 90 x 40 x 92 mm / 3.54 x 1.57 x 3.62” (w x h x d) Sample Block: 55.2 x 30 mm / 2.17 x 1.18” |
| Filter (Sensor Protection) |
Standard: HDPE <10μm Optional: 316 stainless steel sintered guard <80μm |
| Sensor/Sample Block Process Connections | G1/2” BSP, 3/4” 16 UNF, 5/8” 18 UNF |
| Sample Block Inlet/Outlet Connections |
1/8” NPT |
| System Weights | Sensor 150 g (5.29 oz); Sample Block 250 g (8.82 oz); Process Monitor 280 g (9.88 oz) |
| Sensor Electrical Connections | Easidew M12: M12 5 pin (A Coded) |
| Online Sensor Cable | 2, 5, 10 meter (6.5, 16.4, 32.81 ft) connector/cable available |
| Display Type | LCD touch screen 320 x 240 pixel |
| NOTES * Over Compensated Temperature Range | |
Suitable Applications
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