PDHID domestic high-purity gas dedicated chromatograph

Main technical indicators:

Interface display: 5.7-inch industrial color LCD screen control area: 8 channels

Temperature control range: 4 ℃ to 450 ℃ above room temperature, increment: 1 ℃, accuracy: ± 0.01 ℃

Program temperature rise order: 8 order rise rate: 0.1-39 ℃/min (ordinary type); 0.1-80 ℃/min (high-speed type)

External events: 6 routes; Auxiliary control output 2 channels

Sample injector types: packed column injection, capillary injection, six way valve gas injection, automatic headspace injection optional

Number of detectors: 3 (maximum); FID, TCD, ECD, FPD, and NPD are optional

Gas path control: mechanical valve control mode, EPC mode optional

EPC and EFC working modes: 2 types; Constant current mode, constant voltage mode

EPC and EFC working gases: 5 types; Nitrogen, hydrogen, air, helium, argon

EPC, EFC lift: 4th order

PC, EFC control range: pressure: 0-0.6MPa; Flow rate 0-100mL/min or 0-500mL/min (air)

Pressure sensor:

Accuracy:<± 2% of full scale Reproducibility:<± 0.05

KPa temperature coefficient:<± 0.01 KPa/° C

Flow sensor:

Accuracy:<± 5% of full scale Reproducibility:<± 0.5% (full scale) Range: 0-500mL/min

Start injection: manual or automatic optional communication interface: Ethernet: IEEE802.3

Power supply: 220V ± 10%, 50Hz; 2500W (maximum) Volume: 572 × 552 × 465 mm (height) Weight: 50kg (approximately)

Technical specifications of detector

Hydrogen flame ionization detector (FID)

Detection limit: Mt ≤ 3 × 10-12g/s (n-hexadecane-isooctane solution);

Noise: ≤ 5 × 10-14A Drift: ≤ 1 × 10-13A/30min Linear range: ≥ 106

Thermal conductivity detector (TCD):

Sensitivity: S ≥ 3500mV • ml/mg (conventional) 5000mV • ml/mg (highly sensitive) (benzene toluene solution) (magnification 2, 4, 8 times optional)

Baseline drift: ≤ 30 μ V/30min Linear range: ≥ 104

Electron Capture Detector (ECD):

Detection limit: ≤ 1 × 10-14g/s Noise: ≤ 0.03mV Baseline drift: ≤ 0.2mV/30min

Linear range: ≥ 103 Radiation source: 63Ni

Flame photometric detector (FPD):

Detection limit: (S) ≤ 5 × 10-11g/s, (P) ≤ 1 × 10-12g/s; Noise: ≤ 0.03mV

Baseline drift: ≤ 0.2mV/30min Linear range: ≥ 103 (S), 102 (P)