ZFG Infrared gas analyzer （Heat treat furnace)

Description

Measurement
principle
Non-dispersive infrared ray absorption (Single-beam
system)
Measurable
component and
range
・Up to 2 components can be measured.
・Switching between 2 ranges
・Maximum range ratio : 1:5
Repeatability Within ± 0.5%FS
Linearity Within ± 1.0%FS
Within ± 2.0%FS (Range ratio : 1:4 or 1:5)
Zero drift Within ± 2%FS / week
Span drift Within ± 2%FS / week
Interference
from other gas
components
Within ± 2%FS
Response time Within 10 sec (90% response from the gas inlet)
Analog output
signal
4 to 20 mA or 0 to 1 V DC, or
0 to 100 mV or 0 to 10 mV DC
Instantaneous value output (Concentration of each
gas component measured)
CP calculation output (Option)
Display
LCD with backlight (with auto OFF function)
(Japanese or English by designation)
Instantaneous value of each component, CP
calculation result (option), parameter setting
Range switching Manual switching by key operation, auto switching,
external contact input switching (option)
Contact output
1a relay contact
Instrument error (standard), each component range
identification signal (option)
Measured
component Minimum range Maximum range
CO2 0 〜 0.5% 0 〜 100 vol%
CO 0 〜 0.5% 0 〜 100 vol%
CH4 0 〜 1% 0 〜 10 vol%
External contact
input (option)
No-voltage contact
Remote range switching, remote output signal hold
Gas outlet / inlet
dimension Rc1 / 4 or NPT1 / 4
Purge gas flow rate 1L / min (Performed as required.)
Coating color Off-white (Munsell 10Y7.5 / 0.5 or equivalent)
Structure Indoor type with steel case
Ambient
temperature /
humidity
− 5℃ to 45℃ , 95% RH or lower (No condensation
allowed.)
Warm-up time Approximately 30 min
Mounting method Front mounting
Power supply
voltage 100 to 240 V AC, 50 / 60 Hz, 50 VA
Outside dimension 211 (H) × 218 (W) × 257 (D) mm
Mass Approximately 5 kg
Calibration gas
Zero gas：Dry N2 or dry air
Span gas：Each sample gas having concentration 90
to 100% of its measuring range (recommended).
［Measured gas conditions］
Flow rate 0.5 L / min ± 0.2 L / min
Temperature 0℃ to 40℃
Pressure 5 kPa or lower
Dust 0.3 μm or lower
Mist Not allowed.
Moisture Saturation at room temperature or lower (No
condensation allowed.)
Corrosive
component HCℓ : 1 ppm or less