HONEYWELL，SIH4侦测器，电化学式，霍尼韦尔，MIDAS-E-SHX
HONEYWELL，SIH4侦测器，电化学式，霍尼韦尔，MIDAS-E-SHX
HONEYWELL，SIH4侦测器，电化学式，霍尼韦尔，MIDAS-E-SHX
Midas
SENSOR CARTRIDGE SPECIFICATIONS
MIDASSilane Group (SiH4 Si2H6)
MIDAS-S-SHX, MIDAS-E-SHX
GAS MEASURED Silane (SiH4)
CARTRIDGE PART NUMBER
SENSOR TECHNOLOGY 3 electrode electrochemical cell
MIDAS-S-SHX 1 year standard warranty
MIDAS-E-SHX 2 year extended warranty
MEASURING RANGE (PPM) SiH4 0 – 20 ppm
MINIMUM ALARM 1 SET POINT 2.50 ppm
REPEATABILITY < ± 5% of measured value
RESPONSE TIME T62.5 < 3 seconds
SENSOR CARTRIDGE LIFE EXPECTANCY ≥ 24 months under typical application
conditions
OPERATING TEMPERATURE EFFECT OF
TEMPERATURE
ZERO
SENSITIVITY
0º to + 40ºC (32º to 104ºF)
< ± 0.01 ppm / ºC (0º to 20ºC)
< ± 0.04 ppm / ºC (20º to 40ºC)
< ± 0.8% of measured value / ºC
OPERATING PRESSURE 90 - 110kPa
EFFECT OF POSITION No effect in typical application
LONG TERM DRIFT
ZERO
SENSITIVITY
< 2 ppm / year
< ± 10% of measured value / year
CALIBRATION GAS Silane (SiH4)
CHALLENGE GAS (BUMP TEST) Hydrogen Sulfide (H2S)
WARM UP TIME < 20 minutes
STORAGE TEMPERATURE +5° to + 25°C (+41° to +77°F)
The sensor data listed is based on ideal test environment;
observed performance may vary based on the actual
monitoring system and the sampling conditions employed
Other Detectable Gases
The following additional gases can be detected with this sensor
cartridge. Sensor performance and characteristics will be
representative of the data as tabulated above. Consult the
Technical Manual to set up the Midas
transmitter with the
designated identification code for each of the following gas types.
DETECTABLE GAS CHEMICAL FORMULA MEASURING RANGE
Disilane Si2H6 0 – 2 ppm
Cross Sensitivities
Each Midas sensor is potentially cross sensitive to other
gases and this may cause a gas reading when exposed to
other gases than those originally designated. The table
below presents typical readings that will be observed when a
new sensor cartridge is exposed to the cross sensitive gas
(or a mixture of gases containing the cross sensitive species).
GAS / VAPOR CHEMICAL
FORMULA
CONCENTRATION
APPLIED (PPM)
READING
(PPM HF)
Ammonia NH3 100 0
Arsine AsH3 1 0.54
Carbon Monoxide CO 2000 0.56
-0.86
0.45
0
Chlorine Cl2 5
Diborane B2H6 1 0.75
Ethanol C2H5OH 500 0
Hydrogen H2 5000
Hydrogen Chloride HCl 12.5 2.1
Hydrogen Fluoride HF 10 0
Hydrogen Sulfide H2S 10 2.7
Iso Propanol C3H7OH 2000
Nitrogen Dioxide NO2 6 -0.89
Phosphine PH3 1 1.13
Sulfur Dioxide SO2 50 3.5