The sample to be tested does not require any pretreatment. The water sample riser is directly inserted into the system water sample, and the total phosphorus concentration can be measured. The maximum measurement range of this equipment is 0.1~500mg/L TP. This method is mainly used for on-line automatic monitoring of total phosphorus concentration of waste (sewage) water discharge point source, surface water, etc.
Methods | National Standard GB11893-89 “Water quality – Determination of total phosphorus Ammonium molybdate spectrophotometric method”. | |
Measuring range | 0-500mg/L TP (0-2mg/L;0.1-10mg/L;0.5-50mg/L; 1-100mg/L;5-500mg/L) | |
Accuracy | no more than±10% or no more than±0.2mg/L | |
Repeatability | no more than ±5% or no more than ±0.2 mg/L | |
Measurement period | minimum measuring period of 30 min, according to actual water samples, can be modified at 5 ~ 120min arbitrary digestion time. | |
Sampling period | the time interval (10 ~ 9999min adjustable) and the whole point of measurement mode. | |
Calibration period | 1~99 days, any interval, any time adjustable. | |
Maintenance period | once a month, each about 30 min. | |
Reagent for value-based management | Less than 3 yuan/samples. | |
Output | RS-232;RS485;4~20mA three ways | |
Environmental requirement | temperature adjustable interior, it is recommended temperature 5~28℃;humidity≤90%(no condensing) | |
Power supply | AC230±10%V, 50±10%Hz, 5A | |
Size | 1570 x500 x450mm(H*W*D). | |
Others | abnormal alarm and power failure will not lose data; |
Touch screen display and command input
Abnormal reset and power off after the call, the instrument automatically discharge the residual reactants inside the instrument, automatically return to work
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