WGH6431 Flame Photometer, K/Na/Ca Measurement (CAT#: STEM-BC-4148-ZJF)

The WGH6431 is a flame photometer for measuring potassium, sodium, and calcium. It determines concentration by monitoring the emission produced when sample atoms are excited in a flame. The instrument is designed for quantitative analysis within the listed element ranges. Up to three selected elements can be shown at the same time. An LCD and menu-based keyboard support direct operation. Automatic correlation calculation helps assess calibration quality. Standard curves can be stored, and single-point correction is available for routine adjustment. Preset flame control and flame-out protection support stable and safe combustion. The RS232 interface connects the instrument to a computer or printer, while the moisture separator helps condition the gas stream.

Power supply: 220 V, 50 Hz
Rated power: 250 W
Display: LCD
Measured elements: K, Na, and Ca
K range: 0-100 µg/mL
Na range: 0-100 µg/mL
Ca range: 0-1000 µg/mL
K detection limit: ≤0.004 mmol/L
Na detection limit: ≤0.008 mmol/L
Ca detection limit: ≤0.050 mmol/L
K linearity error: ≤0.005 mmol/L
Na linearity error: ≤0.03 mmol/L
Ca linearity error: ≤0.07 mmol/L
Short-term stability: Relative maximum indication change ≤3% within 15 s
Long-term stability: Relative maximum indication change ≤15% over six measurements at 1 min intervals
Repeatability: ≤3%
Calibration methods: Piecewise-linear, linear, and curve methods as listed
Sample uptake rate: <6 mL/min
Communication: RS232
Net weight: 10 kg
Product dimensions: 400 × 275 × 460 mm

Three-element measurement
Calcium range to 1000 µg/mL
Automatic correlation calculation
Multi-element LCD display
Flame-size preset function
Stored calibration curves
Flame-out safety device
Moisture separator and RS232

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