Beijing Jia hua zhong xin Technology Co., Ltd

Products > Water quality analysis equipment > Dissolved Oxygen Meter > LDO Portable Dissolved Oxygen Meter
Product name : LDO Portable Dissolved Oxygen Meter
Item : 美国哈希(HACH)
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Details:
 Details:
LDOTM Portable Dissolved Oxygen Meter Hach Company is using the latest technology was developed, suitable for both laboratory and field testing of portable instruments.
 
Dissolved Oxygen Measurement Technology - fluorescence measurements of dissolved oxygen
 
HACH Company LDO oxygen sensor is covered with a layer of fluorescent material, when the LED light emitted blue light to the sensor surface of the fluorescent substance, the fluorescent substance is excited to release red light. Emits blue light from red to release this time is recorded. The higher the concentration of oxygen in the water, the shorter the time the release of red. In the red release time and establish a correlation between the concentration of dissolved oxygen, the instrument by measuring the red release time calculated concentration of dissolved oxygen, and thus displayed directly on the screen of the dissolved oxygen concentration.
 
Portable Dissolved Oxygen Meter LDO advantages:
The technical aspects of the measurement of dissolved oxygen with a portable analyzer LDO probe with conventional polarography based on current or dissolved oxygen meter, compared with many advantages:
(A) without polarization: measuring dissolved oxygen, LDO dissolved oxygen probe does not require polarization time. Before using traditional dissolved oxygen probe polarization process usually.
(2) No calibration: LDO dissolved oxygen probe has been calibrated at the factory, so the user when used without calibration, direct measurement of dissolved oxygen concentration. The traditional dissolved oxygen meter, when used, are usually calibration step, the calibration passed only after the determination of dissolved oxygen.
(3) Low maintenance: LDO probe is non-film probe, without changing the membrane, without filling electrolyte, maintenance is greatly reduced, saving time and reducing the maintenance cost.
(4) anti-interference ability: LDO probe is non-film probe and therefore not typical of chemical substances in wastewater interference.
(5) durable fluorescent cap: fluorescent cap being virtually scratch or partial contamination, can still maintain their accuracy, easy to clean.
 
Technical indicators:
Portable Dissolved Oxygen Meter technical parameters
Measuring range: 0 ~ 20mg / L (ppm); 0 ~ 200% saturation
Resolution: 0.01mg / L
 
Ordering Guide:
HQ30d53 single digital input multi-parameter analyzer
HQ30d5330100 HQd portable dissolved oxygen meter, standard LDO dissolved oxygen probe (1m cable)
HQ30d5330300 HQd portable dissolved oxygen meter, standard LDO dissolved oxygen probe (3m cable)
HQ30d5331500 HQd Portable Dissolved Oxygen Meter, impact-resistant LDO dissolved oxygen probe (5m cable)
 
Appendix: Other Model electrode and the probe
LDO oxygen probe (standard), 1 meter cable LDO101-01
LDO oxygen probe (standard), 3 m cable LDO101-03
LDO oxygen probe (impact-resistant), 5 m cable LDO101-05
LDO oxygen probe (impact-resistant), 10 m cable LDO101-10
LDO oxygen probe (impact-resistant), 15 m cable LDO101-15
LDO oxygen probe (impact-resistant), 30 m cable LDO101-30

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