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Moisture Monitor Series 35 IS Hygrometer

 

Moisture Monitor Series 35 IS Hygrometer Internal Sample System Option
The Moisture Monitor Series 35 IS (MMS 35 IS) portable hygrometer is certified intrinsically safe, is battery powered, and is housed in a damage-resistant case. When purchased with the internal sample system option, a built-in moisture probe and sampling system with process connections are included, making it a completely self-contained hygrometer system. If purchased without the internal sample system package, the MMS 35 IS requires an external moisture probe connected to the hygrometer by a cable.

 

Other options include computer-enhanced response, data-logging capability and a carrying case that provides protection for the instrument in addition to convenient pockets for accessories.

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Features

  • Absolute humidity in liquids and gases
  • Ambient to ppb moisture range
  • Single channel
  • 12-bit moisture measurement resolution
  • Intrinsically safe, portable model
  • Optional internal sampling system
  • Optional computer-enhanced speed of response
  • Intrinsically safe, certified to Cenelec EEx ia IIC T4
  • Compatible with M Series moisture probe
  • 16-character, backlit LCD with front panel keypad

Applications

This portable, intrinsically safe, single-channel analyzer measures moisture in gases. Designed for portable installations, it is used in conjunction with M Series moisture probes for industries including:
• Petrochemical
• Industrial gas
• Furnace gas/heat treating
• Power generation
• Air dryer
• Pharmaceutical
• Aerospace

Specifications

Electronics

Intrinsic Safety

Certified for intrinsic safety when using battery power:
ISSeP01ATEX035X II 1 G EEx ia IIC T4

European Compliance

Complies with EMC Directive 89/336/EEC and
PED 97/23/EC for DN<25

Functions

• Dew/frost point
• Ppmv in gases at constant pressure (pressure by
programmable constant)
• Sensor signal (MH)

Moisture Inputs

• Portable model with internal sample system has
internal M Series moisture probe input only. Process
connection is via tubing fittings.
• Portable model for use with external M Series
probe/sample system has external terminal strip for
M Series moisture probe. Probe may be remotely
located up to 2000 ft (600 m) from electronic console.

Data Logger Functions (optional)

• Date, time, value, units
• Selectable sample interval
• Sequential log
• Simple communication protocol for data dump
• RS232 port for use in nonhazardous areas only

Computer-Enhanced Response Software

Optional: Software provides fast measurements in abrupt
dry-down applications (3 to 5 minute speed of response)

Display Functions

• Dew/frost point temperature: °F (°C)
• Ppmv
• Pressure: psi(g), bar, kPa(g), kg/cm2(g)
• Sensor signal (MH)

AC Power Supply

Specify as 100, 120, 230 or 240 VAC, 50/60 Hz

Rechargeable Battery Pack

Battery power for eight-hour operation

Operating Temperature

32°F to 140°F (0°C to 60°C)

Storage Temperature

-4°F to 158°F (–20°C to 70°C)

Configurations

• Battery-powered portable
• Battery-powered portable with internal sample system

Moisture Measurement


Sensor Type

GE M Series thin-film aluminum oxide

Traceability

Each sensor is individually computer-calibrated against
known moisture concentrations. Calibrations are
traceable to the NIST

Operating and Storage Temperature

-166°F to 158°F (–110°C to 70°C)

Operating Pressure

5 m Hg to 345 bar (5000 psig)


Dew/Frost Point Temperature


Overall Calibration Range Capability

140°F to -166°F (60°C to –110°C)

Available Calibration Range Options

• Standard: 68°F to -112°F (20°C to –80°C) with data to
-166°F (–110°C)
• Extended high: 140°F to -112°F (60°C to –80°C) with
data to -166°F (–110°C)

Accuracy

• ±3.6°F (±2°C) from 140°F to -85°F (60°C to –65°C)
• ±5.4°F (±3°C) from -87°F to -166°F (–66°C to –110°C)

Repeatability

• ±0.9°F (±0.5°C) from 140°F to -85°F (60°C to –65°C)
• ±1.8°F (±1°C) from -87°F to -166°F (–66°C to –110°C)

Response Time

Less than five seconds for a 63% step change in
moisture content in either wet-up or dry-down cycle

Gas Flow Range

From static to 10,000-cm/s linear velocity at 1 atm

Download

Descriptions English
Basic Hygrometry Principles acrobat-reader
Moisture Monitor Series 35 IS Intrinsically Safe Monitor acrobat-reader
Moisture Monitor Series 35 IS User\'s Manual acrobat-reader


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