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Tengine Online 20.00mg/l Automatic Luminescent Dissolved Oxygen Analyzer / Meter - Ldo10ac
Product description
Tengine Online 20.00mg/L Automatic Luminescent Dissolved Oxygen Analyzer / Meter - LDO10AC
1. Specifications
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Performance characteristics |
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Measuring Range |
0.00~20.00mg/L, or 0.00~20.00ppm, 0 to 200% saturation |
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Resolution |
0.01mg/L,0.01ppm |
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Accuracy |
±0.1ppm,±0.1mg/L |
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Sensitivity |
±0.05% of span |
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Response time |
90%<30s, 95%<90s, at 20ºC |
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Temperature compensation |
automatic (NTC30KΩ) |
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Calibration |
Factory calibrated, also can be calibrated by customer on site |
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Display |
LCD displays data including date, time, measurement value, trendline, etc., English menu |
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Data storage |
Auto-save function(Automatic Data Storage for up to 10 years,), power-off data protection |
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Outputs |
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Analog Outputs |
Two isolated 0/4-20 mA output( maximum load 800 ohms), optional selection of 3.8mA or 21mA(under the condition of malfunction) |
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Relay outputs |
3 Relays with programmable hysteresis, alarm or timer function optional |
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Relay capacity |
2A, 250VAC |
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Digital Communication |
MODBUS RS232/RS485,Profibus DP is optional |
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Power supply |
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AC power supply |
85~265 VAC, 50Hz/60Hz |
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DC power supply |
24 VDC ±10% |
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Physical parameters |
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Dimension of Transmitter |
270×205×100mm(W×H×D) (10.6*8*3.9 in.) |
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Dimension of Sensor |
Φ45×118mm (1.8*4.5 in.) |
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Materials |
--Transmitter: PC --Sensor: 316L stainless steel |
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Process connection of sensor |
1 inch cone male thread |
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Environmental conditions |
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Ingress protection |
--IP66 (transmitter) --IP68 (Sensor) |
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Operating Temperature |
--Transmitter: -20~60℃ --Sensor: 0~50℃ |
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Ambient Relative Humidity |
0 to 95%, non-condensing |
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Operating Pressure |
≤7.5Bar |
2. Application
Continuously monitor DO in municipal and industrial wastewater treatment process
• Sewage plant
Aeration tank,collection well,aerobic digestion tank,outlet
• Power plant
Water/wastewater treatment process
• Surface water
Rivers,Lakes/Streams,ocean
• Aquaculture
Sea cages, land-based pond
• Other industries
Food industry,Chemical industry
3. Features and Benefits
• Based on the innovative principle utilizing fluorescence to measure dissolved oxygen, the sensor does not require frequent replacement of membranes and needs low maintenance.
• The Measurement does not consume oxygen, stir or flow is not required, and unaffected by H2S,pH, K+, Na+, Mg2+, Ca2+, NH4+, Al3+, Pb2+, Cd2+, Zn2+, Cr, Fe2+, Fe3+, Mn2+, Cu2+, Ni2+, Co2+, NO3-, SO4-2, S-2,
PO43+, Cl-.
• Digital sensor has good anti-interference performance and high stability, and the cable length is available in hundreds of meters.
• Connections between the sensor(s) and the transmitter are “plug and play”, and multi-channel transmitter operates either 1 or 2 sensors.
• Modbus RS485/RS232 or Profibus DP network connection for data transmission is Optional
• The menu is available in Chinese or English.
• 3 Relays with programmable hysteresis povide high-limit alarm, low-limit alarm or timer.
• A built-in data logger with the capacity to store data for up to 10 years collects measurement data at user selectable intervals.
4. Ordering Information
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Ordering Information |
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Transmitter Selection |
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Channel number |
Signal output |
Power version |
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LDO |
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code |
meaning |
code |
meaning |
code |
meaning |
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1 |
Single channel |
0 |
4~20mA |
AC |
220VAC |
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2 |
Dual channel |
1 |
RS 485(Modbus) |
DC |
24VDC |
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2 |
RS 232(Modbus) |
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3 |
Profibus DP |
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Example: LDO10AC, single channel dissolved oxygen transmitter, output 4~20mA, 220V AC Power supply. |
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Sensor Selection |
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Install mode |
Cable length |
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LDO-S |
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code |
meaning |
code |
Meaning |
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0 |
Immersion installation |
C10 |
10m cable |
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CXX |
XXm cable |
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Example: LDO-S0C10, a LDO sensor, immersion-typed install , with 10m cable. |
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(3) Accessories
FA0000: Immersion mounting bracket, stainless steel
FA0001: Immersion mounting bracket, PVC
FA0010: Insertion mounting bracket, stainless steel, with DN50 stainless steel cut-off ball valve
FA0020: Stainless steel floating ball mounting bracket
FA0021: PVC floating-board mounting bracket
FA0031: Circulation mounting accessory, PVC
FA0900: Stainless steel adapter
FA0901: PVC adapter
FA0800: Instrument protective housing, stainless steel
FA0810: Instrument protective housing, stainless steel, with heater unit
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