TPNA-500

Automatic total nitrogen/phosphorus monitor

The latest model combines 60 years of water measurement technology to achieve reduced life cycle costs, compliant regulations.

The future of total nitrogen and total phosphorus measurement not only involves compliance with regulations but also has the potential to contribute to proactive enhancements of corporate values. The future of measurement, regulatory compliance, and enhancement of corporate value will be pursued by proposing technological innovation, improvement, and LCC (Life Cycle Cost) reduction.

TP/TN

Подразделение: Water Pollution
Производитель: HORIBA Advanced Techno Co., Ltd.

Extension of reagent lifespan (twice as long as conventional)

The stability of potassium persulfate has been improved through the development of dedicated reagents. The reagent replacement cycle has been extended from one month to two months. *1
*1: Depends on reagent storage and installation conditions (ambient temperature) (compared to our previous products)

Power consumption has been reduced by approximately 30%, and the amount of pure water and waste liquid has been halved

Reduction of costs (including labor) and environmental impact associated with electricity consumption, use of pure water, and waste liquid treatment (compared to previous estimates).

Adoption of a robust weighing system resistant to contamination

Adoption of a new weighing method (meniscus weighing method) and enhanced automatic cleaning function (optional), while maintaining the reagent volume reduction (1/10) achieved with our previous models. Contributes to extending the maintenance cycle.

Reevaluation of existing equipment

Improved have been made to specifications to make the equipment more reliable by reducing the use of mechanically driven components such as solenoid valves.

General
specifications
Equipment nameAutomatic total nitrogen/phosphorus monitoring system
ModelTPNA-500
Dimensions *1460 (W) mm × 385 (D) mm × 1600 (H) mm
MassApprox. 87 kg
Power supply100 V to 240 V AC ±10%, 50 Hz/60 Hz
Power consumption100 V to 240 V AC: Approx. 250 VA
PerformanceMeasurement
range *2
Total nitrogen: 0 mg N/L to 2/5/10/20/50/100/200/500/1000 mg N/L
Total phosphorus: 0 mg P/L to 0.5/1/2/5/10/20/50/100/250 mg P/L
RepeatabilityWithin ±3% of the full scale
(Total nitrogen full scale: 50 mg N/L or less, total phosphorus full scale: 10 mg P/L or less)
Within ±5% of the full scale
(Total nitrogen full scale: 100 mg N/L to 1000 mg N/L, total phosphorus full scale: 20 mg P/L to 250 mg P/L)
Both with standard solution
Measurement
principle
Total nitrogen: Alkaline potassium persulfate, ultraviolet oxidative dissolution -
ultraviolet absorption spectrophotometry
Total phosphorus: Potassium persulfate, ultraviolet oxidative dissolution -
Molybdenum blue spectrophotometric method
Number of
measurement
points
One point (standard), two points (option)
Number of
measurement
ranges *3
One range (standard), 2 ranges (option)
Measurement
cycle
60 min
Installation
conditions
Ambient
temperature
2℃ to 40℃
Ambient humidityRelative humidity 85% or less (no condensation)
Ambient
environment
  • Indoor installation type
  • Transient overvoltage of main power supply: Overvoltage Category II (EN61010- 1), Pollution Degree 2
  • Flat surface that is not subject to vibration and external shock
  • No dust, mist, or corrosive gas is present in the atmosphere
  • Under atmospheric pressure
  • No direct sunlight
  • Well-ventilated area
Measurement
conditions
Sample water
conditions
*4, *5, *6,*7
Temperature2℃ to 40℃ (no freezing)
Flow rate
  • 0.5 L/min to 5 L/min (when OF-3 is used)
  • 5 L/min to 20 L/min(when OF-30 is used)
Pure water/tap
water supply
conditions*8
Amount of usage43 L/month (depending on the measurement range)
Water quality
  • When the customer supplies pure water, use the water of class
    A2 or above, as specified in JIS K0557: 1998, which does not contain nitrogen and phosphorus compounds.
  • When a pure water unit is used, the tap water criteria defined by the Water Supply Act must be met.
Supply methodSupply by the tank (standard) or continuous supply by the pure water equipment (option)
Supply pressure0.1 MPa to 0.5 MPa
Input/output
specifications
Analog outputNumber of
points
Standard: 4 points
Option (3-component specification/2-point meter specification): 8 points
TypeStandard: 4 mA to 20 mA DC, 0 mA to 16 mA DC
(Set to 4 mA to 20 mA DC at the factory. It can be switched to 0 mA to 16 mA DC from the screen.)
Option: 0 V to 1 V DC, 1 V to 5 V DC
DescriptionStandard: TN concentration, TP concentration, TN load, TP load, flow rate per hour
Option (3-component specification): COD concentration, COD load, COD instantaneous concentration
Note: The COD output settings depend on the equipment
conditions.
Output
impedance
500Ω or less
Contact outputNumber of
points
Standard: 16 points
Option (3-component specification/2-point meter specification): 22 points
TypeNo-voltage output contact
FormIsolated output
Output capacity250 V AC 3 A
30 V DC 3 A (Only 30 V DC 3 A is available for the “Maintenance” contact)
Status outputMeas., Calibration, Standby, Maintenance, SYNCHRONOUS IDLE
1, SYNCHRONOUS IDLE 2, Power, etc.
Alarm outputHi limit alarm (TP, TN, COD), H.Hi limit alarm (TP, TN, COD), Load limit alarm (TP, TN, COD), Sample Lack, Lack Blank, Lack Reag.,
Lack Span, Full Drain Tank, Total Alarm 1 to 6, various meter errors, etc.
Analog inputNumber of
points
Standard: 1 point
Option (3-component specification/2-point meter specification):
2 points
TypeStandard: 4 mA to 20 mA DC
Option: 1 V to 5 V DC
DescriptionFlow rate (full scale can be set as desired), UV/COD meter
concentration
Contact inputNumber of
points
Standard: 9 points
Option (3-component specification/2-point meter specification): 18 points
TypeNo-voltage a contact input (open collector is available)
FormIsolated input: Common to the (-) side
ON resistance100 Ω (max.)
Open-circuit
voltage
26 V DC (max.)
Short-circuit
current
13 mA DC (max.)
FunctionMeas. Start, Cal. Start, Modify Date, Line Select,
Flow Mainte, Flow Err., Flow Power, Flow No Drain,
UV/COD Mainte, UV/COD Err., UV/COD Power, etc.
Equipment
function
DisplayTouch panel type liquid crystal (color)
Load calculation functionStandard: TP/TN load calculation function is provided
Option: COD and 2-point meter load calculation function are provided
OptionTurbidity compensation function is provided (TN)
(Turbidity compensation wavelength: 275 nm)
Memory functionMeasurement value: Memory for over 1 year (including the daily and hourly reports)
Alarm history: 500 events
Calibration history: 100 events
Operation history: 100 events
Note: USB external memory device can be used.
Communication functionStandard: RS-485
Option: RS-232C
Communication protocolModbus
PrinterProvided (recording paper width: 58 mm) With automatic take-up equipment
ReagentReagent A0.8 mL per measurement (capacity: 1000 mL)
Solution B0.2 mL per measurement (capacity: 250 mL)
Solution C0.1 mL per measurement (capacity: 250 mL)
Solution D0.1 mL per measurement (capacity: 250 mL)
Solution E0.19 mL per measurement (capacity: 250 mL)
Solution F0.2 mL per measurement (capacity: 250 mL)
Span solution50 mL per measurement (capacity: 1000 mL)
Replacement cycleOne month (only under certain storage/usage environment)

*1:  Compatible with older products: Model TPNA-300, PN-100 series channel base (standard)
*2:  Full-scale values for both total nitrogen and total phosphorous must be greater than or equal to 0.2 and less than or equal to 100
*3:  When the first range is set to low concentration, the following condition must be met for the same measurement component:
    1 ≦ Second range full scale/first range full scale ≦ 50
*4:  The chemical cleaning function for the sample line can be selected according to the nature of the sample
*5:  The provided overflow tank can be installed in either the left/right side or rear of the main unit
*6:  The distance from the provided overflow tank to the main unit should be within 1 m
*7:  The sample must not contain the components that could affect the measurement (metallic ions, etc.)
*8:  When tap water is supplied, flush the pipes by running the water for approximately 30 minutes before supplying.

Note

Perform the installation work while taking the features of the analyzer into consideration. Also, ensure an environment in which the equipment can operate normally. If the equipment is not operating normally due to impairment, operating conditions, or other unexpected events, take appropriate action so that no damage to the equipment will occur.

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