Vaisala HUMICAP MMT310 Servisní příručka Strana 119
- Strana / 156
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
117
Low maintenance
A stainless steel mesh lter and an
optional porous PTFE lter protect
the OMT355 probe optics from dust
and dirt. An intelligent measurement
algorithm further minimizes
contamination effects and provides
a maintenance alert well before
the measurement performance is
affected.
Long calibration interval
Calibration or eld checking of
the instrument can be done either
with ambient air or with zero/span
gases injected through an optional
calibration gas connector. The
calibration interval of the OMT355 is
12 months.
User friendly interfaces
For calibration and con guration, the
OMT355 features both software and
keypad user interfaces and an LCD
display.
TDL Technology
The Tunable Diode Laser
(TDL) technology used in the
SPECTRACAP
®
sensor is one of the
most powerful technologies in gas
measurement on the market today.
The technology is based on
measuring the attenuation of a beam
of laser light in the sample gas. For
oxygen sensing the laser is tuned to
a wavelength which is characteristic
and unique for the oxygen molecule.
Therefore, the measured attenuation
is an extremely selective measure for
the amount of oxygen on the path of
the laser beam.
Technical data
Performance
Measurement range 0 ... 100 % O
2
Accuracy
(including noise, linearity, and repeatability)
±0.2 % O
2
Temperature dependence over T range ±2 % of reading
Stability ±1 % of reading/yr
Zero drift ±0.1 % O
2
/yr
Response time of measurement 3 s
Diffusion limited response in still air T
63
/T
90
without fi lters 10 s / 20 s
with stainless steel mesh fi lter 10 s / 25 s
with stainless steel mesh and PTFE fi lters 30 s / 70 s
Pressure dependence without pressure compensation
0.8 ... 1.2 bar -2 % of reading
1.2 ... 1.4 bar -5 % of reading
Accuracy of pressure compensation ±0.25 % of reading
Background gas effects for CO
2
and H
2
O, uncompensated
<1 % of reading for <6 vol-% CO
2
<1 % of reading for gas dewpoint < 30 °C
Accuracy of background gas compensation
0 ... 50 vol-% CO
2
±0.5 % of reading
0 ... 300 g/m
3
H
2
O (T
d
= 80 °C) ±1 % of reading
Inputs and Outputs
Power supply
input range 11 ... 36 VDC
Power consumption
maximum 6 W
typical 3 W
Analog output 0/4 ... 20 mA, sourcing
maximum load 500
Serial output (2-wire, non-isolated) RS-485
Alarm/control relay 30 VAC/60 VDC
Operating Environment
Operating temperature range
for probe (in-line installation) -20 ... +80 °C
for electronics (housing) -40 ... +60 °C
for transmitter (ambient gas measurement) -20 ... +60 °C
Storage temperature range -55 ... +80 °C
Operating pressure range 0.8 ... 1.4 bar
Maximum pressure range for probe up to 10 bar
Compliance
IEC(EN)-61326 Electrical equipment for measurement, control
and laboratory use. EMC requirements
EN50104 Electrical apparatus for the detection and
measurement of oxygen. Performance requirements and test
methods.
EN50271 Electrical Apparatus for the Detection and
Measurement of Combustible Gases, Toxic Gases or Oxygen
Laser safety Class 1 laser product
- HUMIDITY / DEW POINT / 1
- Vaisala – at your service 5
- Dew Point 6
- Building Automation 8
- Cleanrooms and Chambers 9
- Humidity 12
- Graphical display of 16
- Outputs and power supply 16
- Flexible installation 17
- For moderate humidities 17
- Vaisala HUMICAP® 18
- 41 (1.6) 19
- 51 (2.0) 19
- 192 (7.56) 19
- 253 (9.96) 19
- True humidity readings 20
- Many ways to install 20
- Technical Data 21
- Accessories 21
- Dimensions 21
- Temperature Transmitters 22
- HMP361 for wall mounting 23
- HMP363 for confined spaces 23
- HMP364 for high pressure 23
- HMP365 for high temperature 24
- HMP367 for high humidities 24
- HMP368 for pressurized 24
- Transmitter 28
- Performance 30
- Available options 30
- Annual calibration 30
- Indoor Applications 32
- Measures both humidity 34
- Fast, on-site calibration 34
- Resistant to chemicals 34
- Low maintenance costs 38
- Selectable functions 38
- (HMD/W50) 38
- Demanding applications 40
- Unique warmed probe 40
- Vaisala HUMICAP® Sensor 40
- Chambers 42
- Vaisala INTERCAP 44
- Humidity and Temperature 44
- Probe HMP60 44
- Vaisala HUMICAP 46
- Probe HMP110 46
- Three probes 48
- MI70 Link 48
- HMI41 Indicator and 50
- HMP46 High Temperature Probe 50
- Fast and easy-to-use 54
- HMK15 Humidity Calibrator 56
- DTR500 Solar Radiation and 60
- Precipitation Shields 60
- Versatile outputs and 67
- (wireless) data collection 67
- Easy installation 67
- DMT347 with Small Sized Probe 68
- DMT348 with Probe for 68
- Pipeline Installations 68
- Ensure dry 71
- Measure humidity directly 72
- DMT345, Accurate in hot 72
- OEM Applications 76
- Low maintenance 78
- Vaisala DRYCAP® 80
- Long calibration interval 80
- DSS70A portable 84
- Sampling cells for 84
- Transmitter Series for Oil 86
- Moisture in Oil 86
- The Vaisala HUMICAP 87
- Hand-Held 87
- MMT332 For High Pressure 88
- Installations 88
- MMT337 with Small Sized Probe 88
- Prevent it 91
- Transmitter for Oil 92
- Measurements 98
- Carbon Dioxide 98
- Interchangeable probes 100
- Technical data 101
- Demanding OEM Applications 102
- GMM111 Carbon Dioxide Module 104
- Vaisala CARBOCAP 106
- Two sampling methods 106
- Demand-controlled Ventilation 108
- Features/Benefi ts 110
- GMM112 Carbon Dioxide Module 112
- GMM20W Carbon Dioxide Module 114
- GML20 and GML20T 116
- Process Measurements 118
- Humidity and 121
- Measurement 121
- Environments 121
- Hazardous Areas 122
- Barometric Pressure 124
- PTU300 Models 125
- For more information, visit 128
- Reliable and accurate 129
- HVAC solutions 129
- Take the lab to the fi eld 132
- Standard PTB330TS 134
- PTB210 Digital Barometer 136
- Vaisala BAROCAP® 138
- Accuracy and stability 138
- Applications 138
- Ideal for outdoor 140
- Carefree maintenance 140
- Measuring acoustic 142
- Wind Measurement 146
- Vaisala Service O ering 148
- Vaisala Service Offering 148
- Accredited Body 149
- Accredited Parameters 149
- Vaisala Filters 150
- Vaisala Filters continued 151
- Vaisala Contact Information 153
- ACCURATE 154
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