MM 411

Model MM411
Hygrometer / Dew Point Hygrometers
Two versions of the remote sensor are available to meet your needs. The general purpose sensor includes flow valves and can be mounted up to 3280.8ft from the analyzer. A simple coaxial cable connects the sensor to the instrument. The intrinsically safe remote sensor allows for installations into hazardous areas. This sensor is approved by BASEEFA and CENELEC to ATEX II 1G/EEx ia IIC T4
standards.

Technical Specifications
Enclosure: Bench/Panel Mount
Dimension: 7.48H x 9.33W x 16.14D (inches) weight 17.41lbs
Measurement Ranges Autoranging from -148°F to +68°F and equivalent in ppm(v) moisture
Accuracy ±1°F from -76°F to +68°F (±1°C from -60°C to +20°C)
±2°F from -148°F to -76°F (±2°C from -100°C to -60°C
Response Time Wet gas to dry gas: -4°F to -76°F (-20°C to -60°C), less than 60 seconds
Dry gas to wet gas: -148°F to -4°F (-100°C to -20°C), less than 60 seconds
Selectable Units Dew Point °C / Dew Point °F / ppm(v)
Display Type 5 digit high visibility LED
Operating Conditions Sample and ambient temperature: 32–104°F (0–40°C)
Sample Connections 1/8 in. Swagelock® type, brass
Sample Pressure 0.25 – 28.0 Barg
Sample Flow Independent: ideally 0.5 l/min
Power Requirements 115/230 VAC, 50/60 Hz
Unacceptable Gases Corrosive gases, Mercury, Ammonia, Chlorine, HCl, Ozone

Application
Industrial specialty Gases
Heat Treating Furnaces
Air Dryers
Chemical Manufacturing
Compressed Air
Natural Gas
Plastics Manufacturing
Inert Atmosphere Blanketing
Metallurgy

The Systech Illinois 400 Moisture/Dew Point Hygrometers represent the latest advance in moisture analysis. Designed to be customized to your application giving precise measurements while providing a
simple, yet affordable analyzer.

Features & Benefits
Autoranging from –148°F to +68°F
RS232/485 outputs
°F, °C, and ppmv units
Calibration traceable to NIST
Remote sensors available
Fast response and recovery from
saturation
Fault alarm
Intrinsically Safe Option

Moisture / Dew Point Hygrometers
Features & Benefits
MM400
Advanced technologies in process gas measurement for maintenance
free analysis. Utilising a state of the art ceramic sensor the MM400
offers excellent long-term reliable and stable moisture analysis from
trace levels to ambient air conditions.

Advanced technologies in process gas measurement for maintenance free analysis. Utilising a state of the art ceramic sensor the MM400 offers excellent long-term reliable and stable moisture analysis from trace levels to ambient air conditions. Fast response and recovery from saturation Fault alarm Intrinsically Safe Option

Approved by BASEEFA and CENELEC to ATEX II 1G EEX ia IIC T4 standards

Maintenance Free
The Illinois 400 Moisture/Dew Point Hygrometers represent the latest advance in moisture analysis. Designed to be customized to your application giving precise measurements while providing a simple, yet affordable analyzer. All instruments in the series incorporate our high quality aluminium oxide moisture sensor, providing accurate, dependable results over a wide range from –148?F to +68?F dew point. The aluminium oxide sensor is maintenance-free and is the popular choice for the most demanding applications. Simply select the instrument configuration and sensor location and let the analyzer do the rest.