OptiSonde™

Chilled mirror hygrometerKey benefits
Chilled mirror hygrometers are used in standards andmetrology labs as well as in industrial applications where
precise and repeatable humidity measurement and control
are required. The inherent accuracy and long term stability
provide many advantages over other types of humidity
measurement technologies.
• Compact and rugged design for easy installation anddurability• Patented PACER® cycle automatically cleans mirror toensure measurement integrity• PanaView™ software transfers data from the meter to a
PC for additional storage and enables data to be viewed
graphically• Easy to configure using the front panel for simple operation• Humidity measurements are traceable to National Instituteof Standards and Traceability (NIST)• Built-in data logger provides ability to record historicaldata

Applications• Sensor conveniently plugs into wall mount chassis forfacility monitoring, eliminating the need to run cable• Engine test cells• Sensors may be connected up to 91 m away via cable forremote monitoring• Displays and transmits in a variety of parameters, such as
dew point, relative humidity, dry bulb, wet bulb, absolute
humidity, volume ratio, and mass ratio, offering flexibility
during operation• Digital (RS-232) interface for data integrity• Environmental test chambers• Clean rooms• Air conditioning and heat exchange coil testing• Metrology labs

The OptiSonde chilled mirror hygrometer is a National
Institute of Standards and Technology (NIST) traceable
humidity transfer standard at an exceptional value. The
compact rugged analyzer is connected to either a single-or
two-stage chilled mirror sensor and PRTD. Chilled mirrors are
the humidity sensors of choice when laboratory and process
measurements require high precision without long-term
drift. An LCD indicates two simultaneous user-configured
parameters. OptiSonde provides two user-configured analog(4 to 20 mA) outputs. The display and front panel keys enable
quick and easy configuration.
The OptiSonde easily records humidity and temperature
data from a wide variety of applications. The analyzer isequipped with a data logger capable of recording for 100
days at a sample rate of 1 second and is equipped with aninternal real-time clock. The saved data is uploaded to a PC
using terminal software as ASCII delimited text, enabling it
to be opened by Excel® and other spreadsheet programs fordata reduction, graphing and statistical analysis.

Theory of operation
Chilled mirrors fundamentally measure the dew or frost
point temperature by controlling a reflective surface to an
equilibrium temperature between dew/frost formation andevaporation and precisely measuring the temperature of themirror at this point.
The chilled mirror sensors consist of a small polishedhexagonal rhodium, or platinum mirror attached to athermoelectric cooling module (TEC). OptiSonde’s servo
controller applies current to the TEC, which causes the mirror
to cool. The mirror is illuminated with a regulated Gallium
Arsenide (GaAs) emitter that transmits light in the infrared
spectrum. The light reflected by the mirror is received bya photo detector. When water vapor condenses on the
mirror as water or frost (ice crystals), the light received
by the photodetector is reduced due to scattering. This
results in the servo controller reducing the power, causing
the mirror to slightly warm. OptiSonde’s control system will
modulate the amount of current flowing though the TEC tomaintain a temperature where the rate of condensationand evaporation of water molecules and the mass of wateron the mirror are constant. The resulting temperature of themirror is then, by definition, equal to the dew or frost pointtemperature. A precision four-wire platinum RTD embeddedin the mirror measures the temperature. The accuracy of thedew point measurement has been validated to an accuracyof ±0.2°C dew/frost point.

Dry bulb temperature is measured with a precise fourwire 100W platinum RTD. The dew/frost point and dry bulb
RTD resistance signals are conditioned and amplified by
OptiSonde’s monitor to display and transmit dew/frost point
and temperature.
The cardinal measurements of dew/frost point and dry bulb
temperature, along with pressure and molecular weight
constants, are used to calculate other humidity parameters,such as relative humidity, wet bulb, ppmv, ppmw,
absolute humidity, and water vapor pressure values using
psychometric equations.
The RTD sensor, which is embedded in the chilled mirror,
never comes in contact with the process or test environment.
The wetted parts consist of the platinum or rhodium mirror,
Mylar® or stainless steel vapor barrier and epoxy sealant.
The net result is drift free humidity measurement designed tomaintain accuracy specifications for many years.
Chilled mirrors require a nominal flow rate across the mirror
to achieve the optimal dew/frost formation and response
time. The sensor should either be installed in a duct withmoving air or be equipped with a sampling pump. The
optimum flow rate is 0.5 to 2.5 SCFH (0.25 to 1.2 L/min).
Panametrics provides sampling systems to condition thetemperature, regulate the pressure and filter process air
before reaching the chilled mirror. Our applications engineers
would be pleased to discuss your application in detail andprovide a recommendation for the system best suited toyour needs.
Optical balance

OP
AMP
Gas flow
LED regulation

Thermoelectric heatpump control

Power
Precision four-wire PRTDLight emitting diodes
Photo detectors
Thermoelectriccooling module

Rhodium or
platinum mirror

Before PACER cycle

After PACER cycle
PACER cycle

GE develimitation
Integralcontrol p
trace huor PID coover damsampling
samples
proportio
digital cochange acooling m
0.09°F (0improvePACER cycle

Contamination control and self-cleaning mirrors
For environments where physical contaminants such as
dust, oil mist and pollen are present, the use of a samplingsystem with a filter media is recommended. The filter media
must be hydrophobic so as to not absorb or release water
vapor into the test stream. Over time the mirror can beetched or pitted by particulates that lead to altering the lightscattering characteristics. The mirrors are field replaceable.
The standard rhodium mirror may be upgraded to platinumfor industrial applications. The two stage sensors also utilize
stainless steel wetted surfaces.
PACER® (Program Automatic Error Reduction) is a patented
contamination compensation scheme. The PACER cycle may
be initiated manually or by programming a timed cycle. The
cycle starts by capturing the data (during the PACER cycle a
constant reading can be transmitted via the analog outputs)
and cooling the mirror well below the dew point such that athick dew layer forms on the mirror.
The mirror is then rapidly heated. During the heating asignificant amount of soluble and some non-soluble
contamination is flash evaporated. The contamination left
on the mirror tends to aggregate in “dry islands” or “spots”(much like a glass that comes out of a dishwasher). This
process leaves approximately 85% of the mirror clean. The
light signal received by the photodetector is comparedagainst a reference LED/photodetector and the two signals
are “balanced,” effectively negating the effect of the residual
contamination left on the mirror.

Cooling

Optical system
automatically adjustsfor correct reflectance(5 seconds)
Start ofcycle

End ofcycle

Prevailingdew point
Mirror heats todry state(90 seconds)

Heating
Mirror cools
and coalesces(30 seconds)

Data is sampled
and held(3 minutes)

Mirror returns
to dew point(60 seconds)

The PACER cycle works very well, but eventually manual
cleaning may be required. All the chilled mirror sensor
surfaces are accessible for manual cleaning. Cleaning is a
simple process consisting of wiping the mirror with a cottonswab wetted with cleaning solution or distilled water.

Calibration services
Proper calibration is critical to the measurement integrityof your equipment. Comparing and adjusting the output
of a device or sensor against a known reference standard
ensures accuracy, reliability and repeatability.
We provide a single source for initial start-up, programmingand verification and for scheduled calibrations. The
requirements of your application dictate the frequency of
calibration and we will tailor a multi-year contract to yourneeds.
We perform on-site calibrations that keep your equipment inyour facility—minimizing downtime. This is a good alternative
if you have more than one piece of equipment. Mail-inservice to our modern calibration facilities provides a more
controlled environment and NIST traceability.

Before PACER cycle

After PACER cycle

OptiSonde specifications

OptiSonde Specifications

Other Humidity Parameters

Temperatureaccuracy
The range andaccuracy of absolute humidity (mH20/v) andrelative humidity (e/esat) readings are based on the fundamental±0.15°Cdew point and temperature measurements. The range andaccuracy of mass (ppmw) and volume (ppmv) ratios are calculated
The
range
accuracy of absolute(mH20/v)
based
on andthe fundamental
dew pointhumidity
measurement
and pressureandhumidity(e/esat)readings are based on theandrelativegas molecularweightconstants.
Other humidity parameters8.84 in(224.5 mm)

fundamental dew point and temperature measurements.
The range and accuracy of mass (ppmw) and volume
Repeatability(ppmv) ratios are calculated based on the fundamental dew
0.05°C
point measurement and pressure and gas molecular weight
constants.

8 in(203.2 mm)
3.3 in(83.8 mm)Bench top
4.49 in(114 mm)

8.17 in(207.5 mm)

Display

3.7 in(94 mm)Repeatability

Two simultaneous parameters with 0.01°C resolution. “Dew Layer

0.05°C
Thickness,” “Control,” “Alarm” and “Service” indicators
4X
2.86 inØ 0.38 in(72.6 mm)
(9.7 mm)

Display

Analog Output

7.8 in(198.1 mm)

Two simultaneous parameters with 0.01°C resolution. “DewTwo linear simultaneous parameters. 0/4 to 20 mA (isolated) withLayer Thickness,” “Control,” “Alarm” and “Service” indicators

250W max load

Analog output

Twolinear simultaneous parameters. 0/4 to 20 mA (isolated)
Alarm
with
250Ω
max 7
load
Form
C (SPDT)amp, 30 VDC (resistive load)
Alarm

DigitalInterfaceForm
C (SPDT)
7 amp, 30 VDC (resistive load)
RS-232

10.48 in(266 mm)Power

Wall mount• 100 - 240 VAC, 50 to 60 Hz, 60 Watts
Power• 18-32 VDC (bench top only)• 100 - 240 VAC, 50 to 60 Hz, 60 watts• 18-32 VDC (bench top only)

Enclosure Material

Enclosurematerial• Wall mount:Cast aluminum

Bench
top: Aluminum
body with plastic front bezel• •Wall
mount:
Cast aluminum

Digital interface
RS-232

Cooling Slew Rate

Cooling
slew rate
1.5°C/sec
1.5°C/sec

Self Cleaning and Balancing

Self cleaning and balancing

Via patented PACER cycle. PACER may be programmed to run on

Via
PACER
cycle.timer
PACER may be programmed toan patented
elapsed timeor dailyrun on an elapsed time or daily timer.
Operatingtemperature
OperatingTemperature• Bench top: Aluminum body with plastic front bezel

Analyzer:-10°C-10°Ctoto60°C
60°C
Analyzer:

Dimensions• Wall mount: 26.6 x 20.8 x 11.4 cm (h x w x d)

Data logger

Dimensions

Bench
top: 9.4cm (h(h xx w
w xx d)d)• •Wall
mount:
26.6x x20.3
20.8xx22.4
11.4 cm• Bench top: 9.4 x 20.3 x 22.4 cm (h x w x d)

WeightWeight• Wall mount: 2.4 kg• •Wall
mount:
2.4 1.4
kg kg
Bench
mount:• Bench mount: 1.4 kg

Ingress
Protection
RatingIngress
protection
rating• Wall mount: IP-65• Wall mount: IP-65• Bench top:
IP-20
• Bench top: IP-20

Front
Panel
Keys
Front
panel
keys

• Rubber function keys—may be locked out via software• Rubber function keys—may be locked out via software
Dew point range — Dependent on sensor used

Dew Point Range -- Dependent on sensor used

Dew point accuracy±Dew
0.2°CPoint
dew/frostpoint
Accuracy± 0.2°Cdew/frost
point
Dew
point
repeatability
0.1°C

Dew Point Repeatability
0.1°C

Data Logger

Capable of recording eight parameters, time and date for a
Capable of recording eight parameters, time and date for aminimum of 100 days at sample rate of one second.

minimum of 100 days at sample rate of one second.

Operating humidity

0Operating
to 95% RH non-condensing
Humidity

0 to 95% RH non-condensing
MTBF
Five years of continuous operation

MTBF

Certifications
Five years of continuous operation
CE Approval

Certifications
Electrical
I/O
CE Approval

Power: AC IEC receptacle for bench top and screw terminal
blocks for wall mount. Chilled mirror sensor: keyed
Electrical I/O Temperature sensor, keyed connector/
connector/cable.
Power:RS-232:
AC IECSUB-D-9.
receptacle
for bench
top andscrew
terminal blocks
cable.
Analogoutputs:screw
terminals

for wall mount. Chilled mirror sensor: keyed connector/cable.
Temperature sensor, keyed connector/cable. RS-232: SUB-D-9.
Optional
hard shellcarryingcase with die-cut foam for
Analog Outputs:
screw
terminals
Carrying casebench top unit and accessories

Carrying Case

Optional hard shell carrying case with die-cut foam for bench top
unit and accessories

1111H Single Stage Chilled
1111H single stage chilled
MirrorSpecifications
mirror specifications

Sample Flow Rate

0.25 to 1.25 LPM (0.5 to 2.5 SCFH)

Operating Temperature-15ºC toflow
80ºC
Samplerate

0.25 to 1.25 LPM (0.5 to 2.5 SCFH)

Operating Pressure

Operating temperature

0.8 to 15 bar (-3 to 200 psig)-15ºC to 80ºC

OperatingPower pressure

Derivedfromanalyzer
0.8
to 15 bar(-3
to 200 psig)

3.5 in(89 mm)1 in(25.4 mm) NPT

Power

Sensor Body

Derived from analyzer

Epoxy-coated aluminum

Sensor bodyØ 1.2 in
(30 mm)FilterEpoxy-coatedaluminum

PTFE filter optional (standard on 1111H-GE)

Filter
0.62 in(16 mm)2.57 in(65 mm)1.23 in(31 mm)PTFE filter optional (standard on 1111H)

MirrorMirrorRhodium-plated copper (solid platinum optional)
Rhodium-plated copper (solid platinum optional)

Vaporbarrier
Barrier
Vapor
Mylar

Mylar

Sensor wetted material

Sensor Wetted Material

Epoxy-coated
Epoxy-coatedaluminum,
aluminum, rhodium
rhodium copper,
copper, mylar
mylarElectrical connector

Electrical Connector

MS style multipin keyed connector

MS style multipin keyed connector

Weight• Weight
1.4 kg (1111H)

1.4kg
kg(1111H)(1111H)• • 1.8• 1.8 kg (1111H-GE)

Accessories• MB-11: Wall mounting bracket (1111H)

Accessories• • PTFE:
PTFE
filter
MB-11:
Wall
mounting bracket (1111H)

PTFE-GE: mirror
PTFE filter• • Platinum• Platinum mirror

Sensing element

Sensing Element

Four-wire 1/3 Class A DIN 43760 PRT, 100Ω @ 0°C

Four-wire 1/3 Class A DIN 43760 PRT, 100Ω @ 0°C

Dew/frost point accuracy

Dew/Frost Point Accuracy± 0.2ºC± 0.2ºC

Depression

45ºC at 25ºC, 1 atmosphere for standard air

Depression

Typicaldewatpoint
45ºC
25ºC,measurement
1 atmosphererange
for standard air-15ºC to 25ºC Td at 25ºC, 1 atmosphere for standard air.
(Equivalent
to 6-100%
RH) Measurement Range
TypicalDew Point-15ºC to 25ºC Td at 25ºC, 1 atmosphere for standard air.
(Equivalent to 6-100% RH)

1111 H
1111 H-GE

D2 two stage chilled
mirror specifications
D2 Two Stage Chilled

Mirror Specifications

Sensing Element

Four-wire 1/3 Class A DIN 43760 PRT, 100W @ 0ºC
Sensing element

Dew/Frost Point Accuracy

Four-wire±1/3Class A DIN 43760 PRT, 100W @ 0ºC
0.2ºC
Dew/frost point accuracy± 0.2ºC

Depression

65ºC at 25ºC, 1 atmosphere for standard air

Depression

65ºC at 25ºC, 1 atmosphere for standard air

Typical Dew Point Measurement Range

Typical dew
point
measurement-35ºC
to 25ºC
Td at 25ºC,range
1 atmosphere for standard air.

to 1 to1 atmosphere
100 % RH) for standard air.
-35ºC to (Equivalent
25ºC Td at 25ºC,(Equivalent to 1 to 100 % RH)

SampleSample flowrate Flow Rate

0.25 to 1.25 LPM (0.5 to 2.5 SCFH)Ø 0.107 in (4.75 mm)
thru 4 places
0.25 in (6.35 mm)compression
stainless steel

0.25 to 1.25 LPM (0.5 to 2.5 SCFH)

Operatingtemperature
OperatingTemperature-25ºC to -25ºC
85ºC to 85ºC
Operating pressure

4.5 in (114 mm)
squareOperating Pressure

1 to 11 bar (0 to 150 psig)
Power

1 to 11 bar (0 to 150 psig)

Derived fromanalyzerPower

View portDerived from analyzer
Equipped with illuminated view port that enables observationof mirror View Port

Equipped with illuminated view port that enables
observation of mirror

Sensor body
4 in (102 mm)

Cast aluminum with 314 SS flow cell
MirrorSensor Body

Cast aluminum with 314 SS flow cell

Rhodium-plated copper (solid platinum optional)
Vapor barrier

Mirror

StainlessRhodium-plated
steel
copper (solid platinum optional)
Sensor wetted material

Vapor
Barrier
302, 314, 316
stainlesssteel, silicone O-ring, BK-7 glass,
Stainlesscopper
steel or platinum mirror aluminum,
rhodium-plated
rhodium copper, mylar, PTFE
Sensor Wetted Material
Inlet/outlet

302, 314, 316 stainless steel, silicone O-ring, BK-7 glass,rhodium-plated copper or platinum mirror aluminum,
Electricalrhodium
connector
copper, mylar, PTFE
0.25 in (6.35 mm) OD tubing fittings
SUB-D-15
WeightInlet/Outlet

0.25 in (6.35 mm) OD tubing fittings

1.8 kg (4 lb)

Accessories
Electrical Connector
PlatinumSUB-D-15
mirror

Weight

1.8 kg (4 lb)

Accessories

Platinum mirror

1211H two stage chilled
mirror specifications

1211H Two Stage Chilled
Mirror Specifications

Sensing Element

Four-wire 1/3 Class A DIN 43760 PRT, 100Ω @ 0°C

Sensing element

Dew/Frost
Point
Four-wire
1/3 Class
A DINAccuracy
43760 PRT, 100Ω @ 0°C± 0.2ºC

Dew/frost point accuracy± 0.2ºC

Depression

Depression
65ºC at 25ºC, 1 atmosphere for standard air
65ºC at 25ºC, 1 atmosphere for standard air

TypicalDewmeasurement
Point Measurement
Typicaldew point
range Range-35ºC to 25ºC Td at 25ºC, 1 atmosphere for-35ºC to 25ºC Td at 25ºC, 1 atmosphere for standard air.
standard air. (Equivalent to 6 to 100% RH)(Equivalent to 6 to 100% RH)
Sample flow rate

Sample Flow Rate

0.25 to1.25toLPM(0.5
to (0.5
2.5 SCFH)
0.25
1.25
LPM
to 2.5 SCFH)
1/4 in (6.35mm)
Compression fitting

Operating temperature

Operating Temperature-25ºC to 100ºC-25ºC to 100ºC

Operating pressure

1-21 bar(0 to 300 Pressure
psig)
OperatingPower1-21 bar (0 to 300 psig)

3.6 in(91.44 mm)

Derived from analyzer

Power

5.7 in(144.8 mm)

Sensor body

Derived from analyzer

Cast aluminum with 314 SS flow cell
1211H

MirrorSensor Body
3.1 in (78.7 mm)

Cast aluminumwith(solid
314 SS
flow celloptional)
Rhodium-plated
copperplatinum
Vapor barrier

MirrorMylarRhodium-plated copper (solid platinum optional)
5 in(127 mm)

Sensor wetted material

Vapor
Barrier steel, silicone O-ring, rhodium plated
302, 314,
316 stainlessMylar
copperor platinum mirror
Inlet/outlet

Sensor Wetted Material

0.25 in (6.35 mm) OD tubing fittings

302, 314, 316 stainless steel, silicone O-ring,Electricalconnector
rhodium
plated copper or platinum mirror
MS style multipin keyed connector

Inlet/Outlet
Weight0.25 in (6.35 mm) OD tubing fittings

1.8 kg (4 lb)

Accessories
Electrical Connector

MS stylemultipin keyed connector
Platinum
mirror
Stainless steel vapor barrier

Weight

1.8 kg (4 lb)

Accessories

Platinum mirror
Stainless steel vapor barrier

Specifications
SIM-12Sensing
heatedtwo-stage chilled
Element
Four-wire 1/3 Class A DIN 43760 PRT, 100 W @mirror0°C
specifications
Sensing element

Four-wire 1/3
Class A DIN
43760
PRT, 100 W @ 0°C
Dew/Frost
Point
Accuracy
Dew/frost Standard:
point accuracy ±0.2°C
Standard:±0.2°C

Sensitivity

Sensitivity>0.03°C›0.03°C

Repeatability
Repeatability±0.05°C±0.05°C

Hysteresis

Hysteresis

Negligible Negligible
Cooling stages

StagesTwo-stageCooling
TEC module

Two-stage TEC module

Auxiliary cooling
Not applicable

Auxiliary Cooling

Depression
Not applicable

85°C at 75°C body temperature and atmospheric pressure

Depression
Typical measurement range

85°C at 75°C body temperature and atmospheric-10°C to 75°C
dew/frost point (Td) in air @ 75°C bodypressuretemperature in 25°C ambient temperature and atmosphericpressure. Equivalent to 0.7% to 100% RH.

Typical Measurement Range

Sensor Wetted Material

302, 316 stainless steel, silicone o-ring, BK-7 glass,rhodium or platinum mirror
Sensor wetted material

Mirror

302, 316
stainless steel,Rhodium
silicone plated
o-ring,copper
BK-7 glass, rhodium orStandard:
platinum
mirrorOptional:
Solid platinum
MirrorVapor BarrierStandard:
Rhodium plated copper
Mylar (upgradable to stainless steel)

Optional:

Vapor barrier

Electrical Connector

MylarMS-style(upgradeable
stainless steel)multipintoconnector

IEC receptacle
Electricalconnectorfor AC power
MS-style multipin connector

Weight

IEC receptacle for AC power

7 lb (3.2 kg) net

WeightAccessories

Other parameters
on calculations.
-10°C to based
75°C dew/frost
point (Td) in air @ 75°C

7 lb (3.2 kg) net

and atmospheric pressure. Equivalent to 0.7% to100% RH.
OperatingOther
temperatureparameters based on calculations.

SP		
HSS-12

body temperature in 25°C ambient temperature
Sample flow
0.5 to 5.0 SCFH (0.25 to 2.5 L/min)-15°C to 100°C

Sample Flow
Heater control

0.5 to 5.0 SCFH (0.25 to 2.5 L/min)

Thermostatically controlled. Set point of 25°C, 40°C, 55°C,
70°C, 85°C and 100°C

Solid platinum

P
Accessories

Platinum mirror
Stainless steel vapor barrier
Platinum mirror
Heated sampling system. SIM-12
S		
Stainlesssteel vapor
heated chilled
mirror,barrier
SIM-HFT heatedfiltermoduleand
SIM-HFM
heated
HSS-12		Heated sampling system. SIM-12
heatedflowmeter
mountedonaplatewithmodule
chilled mirror, SIM-HFT heated filter
SIM-HSL
heatedsampleline. mounted on
andSIM-HFM
heatedflowmetera plate with SIM-HSL heated sample line.

Operating Temperature

0.25 in compression fitting

Pressure -15°C to 100°C

Inlet

50 psig (4.5 bar) maximum

25°C
Outlet50 psig (4.5 bar) maximum
100/115/230 VAC, 50/60 Hz, 75 watts
3.5 in (89 mm)

Cast aluminum with 314 stainless steel flow cell7085

105 130 160 185°F

Pressure

55

25

°C

Cast aluminum with 314 stainless steel flow cell77
°F
Max Dewpoint

8.64 in (219 mm)

25

25

4 in (102 mm)

Thermostatically controlled. Set point of 25°C,
40°C, 55°C, 70°C, 85°C and 100°C

Model SIM-12H
Heated Sensor

Sensor bodySensor Body

ON

Ready

Control
100/115/230Heater
VAC, 50/60
Hz, 75 watts

1311-DR FourStage Chilled Mirror
1311-DR Specifications
four-stage chilled
mirror specifications
Sensing Element
Sensing element

Four-wire 1/3 Class A DIN 43760 PRT, 100 W @32°F (0°C)

Four-wire 1/3 Class A DIN 43760 PRT, 100 W @ 32°F (0°C)
Dew/frost point accuracyStandard:
Sensitivity›0.03°C±0.2°C Point Accuracy
Dew/Frost

Standard:±0.2°C

Sensitivity

Repeatability>0.03°C±0.05°C
Hysteresis
Negligible

Repeatability±0.05°C

Cooling stages

Hysteresis

Four-stage TEC
moduleNegligible
Auxiliary cooling

Cooling
Liquid coolingjacket Stages

Four-stage TEC module

Depression, air cooled

95°C at 25°CAuxiliary
and atmospheric
Coolingpressure

Liquid cooled
cooling jacket
Depression, liquid
105°C with 15°C cooling water

Depression, Air Cooled
Typical measurement range

95°C at 25°C and atmospheric pressure• -65°C to 25°C dew/frost point (Td) in air @ 25°C andatmospheric pressure.

Depression, Liquid Cooled• -75°C to 15°C
in liquid-cooledmodewith 15°C coolant.
105°C
with 15°C cooling
water
Other parameters based on calculations.

Sample flowTypical Measurement Range• -65°C to 25°C dew/frost point (Td) in air @ 25°C
0.5 to 5.0 SCFH (0.25 to 2.5 L/min)and atmospheric pressure.
Operating temperature• -75°C to 15°C in liquid-cooled mode with 15°C
coolant.
0°C to 35°C
Other parameters based on calculations.

Sensor Body

Cast aluminum with 314 stainless steel flow cellSensor body

MirrorCast aluminum
stainless steel flowcellStandard: with 314Rhodium-plated
copperMirror Optional:
Standard:

Solid platinum

Rhodium plated copper

Sensor Wetted Material

Optional:

Solid platinum
302, 316 stainlesssteel, silicone o-ring, BK-7 glass,Sensorrhodium
wetted material
or platinum mirror
302, 316 stainless steel, silicone o-ring, BK-7 glass, rhodium or
Vapor
Barrier
platinum
mirrorMylar (upgradable to stainless steel)

Vapor barrier

Mylar (upgradeable to stainless steel)

Inlet/Outlet

Inlet/outlet
1/4 in (6 mm) OD tubing compression fittings
1/4 in (6 mm) OD tubing compression fittings

Electrical
Connector
Electricalconnector

MS-style multipin connector mates
IEC receptacle for AC power

MS-style multipin connector mates
IEC receptacle for AC power
WeightWeight34 kg)
lb (1634 lb (16
netkg) net
Accessories

Accessories
Platinum mirror

P		

P

S		
S

Platinum mirror

Stainless
steel
vapor
barrier
Stainless
steel
vapor
barrierPressure

300 psig (22 Samplebar) maximum
Flow
Power

0.5 to 5.0 SCFH (0.25 to 2.5 L/min)

100/115/230 VAC, 50/60 Hz, 300 watts

1.8 in(46 mm)Operating Temperature
0°C to 35°C

8.77 in (223 mm)

Pressure

300 psig (22 bar) maximum

1311DRØ 0.31 in (7.9 mm)
4 places

Control

7.17 in(182 mm)

Air Cooling

Liquid CoolingPower~ Input Power

100/115/230 VAC, 50/60 Hz, 300 watts
16.3 in (414 mm)

Sensing Element

PTFE-GE: FILTER for 1111H Sensor• Hard shell carrying case for benc
accessories.
• Calibration-multi-year• Extended warranty

Four-wire 1/3 Class A DIN 43760 PRT, 100W @ 0°C

T-100 four-wire PRTD
Accuracy
temperature sensor 0.15ºC
Range-100ºC to 100ºC

Response Time

Cable
PTFE insulation rated to 150ºC, 3 m (10 ft) length, spring strain
reliefPower
Low voltage derived from analyzer

7 seconds for 25ºC to 70ºC step change in fluid
WeightSensing element

Sensor Body Material
Stainless steel

Four-wire 1/3 Class A DIN 43760 PRT, 100W @ 0°C
Accuracy
0.15ºC

0.9 kg (2 lb)

Accessories
PTFE: FILTER for 1111H Sensor

Range• Hard shell carrying case for benchtop unit withaccessories.

-100ºC to 100ºC• Calibration-multi-year

Response time

• Extended warranty

7 seconds for 25ºC to 70ºC step change in fluid
Sensor body material

Polytetrafluoroethylene
cable 150°C, 10 ft (3 m)standard length

Stainless steel
Connector
0.25 in (6.35 mm) NPT

7.5 in (190.5 mm)

Ø 0.25 in(6.35 mm)

Ordering information

Analyzer
1
Benchtop2
Wall mountPower1
100-240 VAC, 50-60 Hz
2
18-32 VDC
		Chilled mirror sensor
		0
None
		
1
1111H single stage sensor, 1” M-NPT fitting
		21111H single stage sensor. Flange for duct mounting and PTFE filter		3
D2 two stage sensor
		41211H two stage high temperature and pressure sensor
		5SIM-12H two stage heated sensor. 115 VAC
		
6SIM-12H two stage heated sensor. 230 VAC
		7
HSS-12H two stage heated sensor and sampling system. 115 VAC
		
8HSS-12H two stage heated sensor and sampling system. 230 VAC		
91311-DR four stage chilled mirror sensor. 100 VAC
		A
1311-DR four stage chilled mirror sensor. 115 VAC
		B
1311-DR four stage chilled mirror sensor. 230 VAC
			Chilled mirror type			1
Rhodium
			2
Platinum				Chilled mirror sensor vapor barrier
				1
Mylar
				2
Stainless steel					Analyzer to chilled mirror sensor cable					
0
No cable 1111H fixed to wall mount					110 ft standard					225 ft					350 ft					4100 ft					5200 ft					6300 ft						Temperature sensor						0100 affixed to wall mount						1
T-100 w/10 ft cable (standard)						2
T-100 w/25 ft cable						3
T-100 w/50 ft cable						4
T-100 w/100 ft cable						5
T-100 w/200 ft cable						6
T-100 w/300 ft cable

Notes:
1. 1111H sensors are only available with mylar vapor barriers
2. D2 sensors are only available with stainless steel vapor barriers
3. Analyzer to sensor cable will be dependent on which analyzer (bench or wall) and sensor is ordered
4. All systems are standard dew point accuracy ±0.2°C Td and temperature ±0.15°C Ta
5. For 1111H affixed to wall mount, you must select 1111H and wall unit
6. For T-100 affixed to wall mount, you must select the wall analyzer
7. 18-32 VDC power supply is only available on bench top analyzer

Panametrics, a Baker Hughes business, provides solutions in the toughest
applications and environments for moisture, oxygen, liquid and gas flow
measurement.
Experts in flare management, Panametrics technology also reduces flareemissions and optimizes performance.
With a reach that extends across the globe, Panametrics’ criticalmeasurement solutions and flare emissions management are enablingcustomers to drive efficiency and achieve carbon reduction targets acrosscritical industries including: Oil & Gas; Energy; Healthcare; Water andWastewater; Chemical Processing; Food & Beverage and many others.
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BHCS38799		

(06/2021)

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