GE Sensing MISP2 Specifications

GE

Measurement & Control Solutions

Applications

This Panametrics aluminum oxide moisture sensor
probe measures moisture concentration in gases
and non-aqueous liquids from trace to ambient
levels. It is designed to be used in conjunction with
the Panametrics Moisture Image Series 1 analyzer
and the PM880 portable hygrometer for industries
including:

• Petrochemical

• Natural gas

• Industrial gas

• Semiconductor

• Furnace gas/heat treating

• Power generation

Features

• Intrinsically safe

• Ambient to ppb moisture measurement: 16-bit
resolution

• Three function capability with moisture sensor
and optional built-in temperature and pressure
sensors

• Nonvolatile calibration data storage

• Calibrations traceable to National Institute of
Standards and Technology (NIST) or National
Physical Lab U.K. (NPL)

• Requires only twisted pair cabling, allowing probe
to be located up to 3000 ft (914 m) from analyzer

• Threaded and VCR mount congurations

• Air dryer

• Pharmaceutical

• Aerospace

MIS Probe 2

Aluminum Oxide Moisture Probe

Moisture Image Series Probe 2 is a
Panametrics product. Panametrics
has joined other GE high-technology
sensing business under a new name­GE Measurement & Control Solutions.

GE

Measurement & Control Solutions

Panametrics Hygrometer Systems and
Moisture Probes

Panametrics aluminum oxide moisture probes have
set the standard of performance and value in industrial
moisture measurement for more than 40 years.

In use, the Moisture Image Series probe is coupled to
Panametrics hygrometer consoles by an interconnecting
cablel. Ease of use, wide measurement range and
rigorous calibration standards make these systems the
preferred choice for industrial moisture measurement
worldwide.

Built-In Pressure and Temperature
Measurement

Accurate determination of many moisture measurement
parameters requires knowledge of the process
temperature and pressure. The inconvenience and
limitations associated with installing and using separate
temperature and pressure sensors have been eliminated,
with both capabilities being built directly into the
Moisture Image Series probe. A nonlinear NTC thermistor
to measure temperature from –22°F to 158°F
(–30°C to 70°C), and a choice of ve solid-state
piezoresistive transducers to measure pressures up to
5000 psig (345 bar), are available.

For convenience, moisture probe calibration data is
stored in nonvolatile EEPROM, so data entry is automatic
and safe from power outage.

The Moisture Image Series probe is intrinsically safe,
saving the expense and installation problems associated
with explosion-proof housings, purges, or external zener
requirements of IEC/Zone 0 areas.

Rigorous Calibration Standards
Traceable to the NIST/NPL

The aluminum oxide sensor of each MIS probe is
individually calibrated in one of the world’s most
advanced moisture calibration facilities. Developed over
several decades, this facility generates precisely known
moisture concentrations, traceable to the NIST/NPL, to
which each sensor is exposed during the calibration
process.

All data is gathered and stored by a dedicated computer
system. Calibrations are repeated over a period of many
months to ensure the stability of each individual moisture
probe. Only those probes that meet GE’s demanding
specications for accuracy and stability are shipped to
customers.

Installation Flexibility

Temperature and pressure input data are used by
Moisture Image Series 1 analyzers and the PM880
portable hygrometer to determine parameters such as
ppm, lbs/mmSCF and releative humidity.

MIS Electronics Module

The real power of the MIS probe comes from an
electronics module that is attached to the moisture
sensor probe. The built-in microprecessor provides 16 bit
resolution, a real performance enhancement, allowing
it to detect parts per billion (ppb) changes in moisture
concentration. In addition, it continuously monitors
and compensates the electronics to ensure long-term
stability.

The Moisture Image Series probe is designed to be
located at the process, exactly where the measurement
is needed. The sensor can withstand process
temperatures of –166° to 158°F (–110° to 70°C) and
pressures from vacuum up to 5000 psig (345 bar). No
minimum ow rate is required. For additional exibility,
the probe can be located up to 3000 feet (0.9 km) from
the analyzer, connected by inexpensive, unshielded,
twisted-pair cable (AWG 22). As a result, the probe can be
placed in the ideal location, even in a large plant, without
the cost, delays and installation problems associated
with special cabling.

GE

Measurement & Control Solutions

MIS Probe 2
Specications

Temperature

• Sensor operating temperature (process environment):
–166° to 158°F (–110° to 70°C)

• Operating temperature for Moisture Image Series
probe electronics module: 32° to 140°F (0° to 60°C)

• Storage temperature: 158°F (70°C) maximum

Operating Pressure

5 µHg to5000 psig (345 bar).

Moisture Sensor

Intrinsic Safety

Intrinsically safe when connected to a Panametrics
Moisture Series analyzer, PM880 portable hygrometer or
intrinsically safe barriers in accordance with the user’s
manual. Moisture Image Series probe:
BAS01ATEX1095
II 1 G Ex ia IIC T4. (–20°C to +80°C) and
CSA C US Class I, Division 1, Groups A,B,C&D T4,
LR44204-23

European Compliance

Complies with EMC Directive 2004/108/EC and
PED 97/23/EC for EN <25

Type

Aluminum oxide moisture sensor probe

Calibration

Each sensor is individually computer calibrated against
known moisture concentrations, traceable to NIST or
NPL.

Limited by optional pressure sensor - see pressure sensor
ranges.

Flow Range

• Gases: Static to 10,000 cm/s linear velocity at 1 atm

• Liquids: Static to 10 cm/s linear velocity at density of
1 g/cc

MIS Probe/Analyzer Separation

3000 ft (0.9 km) maximum recommended length (consult
factory for longer distances)

MIS Probe/Analyzer Compatibility

• Moisture Image Series 1 analyzer

• PM880 portable hygrometer

MIS Probe/Analyzer Cable

Unshielded, twisted pair, AWG 22

Limited Waranty

• Calibration: Six months from delivery

• Materials and workmanship: One year from delivery

Overall Range Capability

–110° to 60°C (–166° to 140°F)

Available Range Options

Standard: –80° to 20°C (–112° to 68°F) with data to
–110°C (–166°F)
Ultra-Low: –110° to –50°C (–166° to –58°F)
High Range Data: –80° to 60°C (–112° to 140°F)

Calibrated Accuracy at 25°C (77°F)

±2°C (3.6°F) from –65° to 10°C (–85° to 50°F)
±3°C (5.4°F) from –80° to –66°C (–112° to –87°F).

Repeatability

±0.5°C (0.9°F) from –65° to 10°C (–85° to 50°F)
±1.0°C (1.8°F) from –80° to –66°C (–112° to –87°F).

Built-In Temperature Sensor

Type

Nonlinear NTC thermistor (resultant temperature
linearized by microprocessor)

Operating Ran

– 22° to 158° F (–30° to 70°C)

Accuracy

±0.9°F (±0.5°C) overall

Response Time (Maximum)

One second in well stirred oil or 10 seconds in still air
for a 63% step change in increasing or decreasing
temperature

GE

Measurement & Control Solutions

MIS Probe 2
Specications

Built-In Pressure Sensor

Type

Solid-state/piezoresistive

Available Ranges

• 30 to 300 psig (3 to 21 bar)

• 50 to 500 psig (4 to 35 bar)

• 100 to 1000 psig (7 to 69 bar)

• 300 to 3000 psig (21 to 207 bar)

• 500 to 5000 psig (35 to 345 bar)

Accuracy

±1% of full scale

Pressure Rating

Three times the span of the available range to a
maximum of 7500 psig (518 bar)

www.gesensinginspection.com

920-545A

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