TPNA-500 Automatic total nitrogen/phosphorus monitoring system

Description

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.

General
specifications Equipment name Automatic total nitrogen/phosphorus monitoring system
Model TPNA-500
Dimensions *1 460 (W) mm × 385 (D) mm × 1600 (H) mm
Mass Approx. 87 kg
Power supply 100 V to 240 V AC ±10%, 50 Hz/60 Hz
Power consumption 100 V to 240 V AC: Approx. 250 VA
Performance Measurement
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
Repeatability Within ±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 humidity Relative 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 Temperature 2℃ 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 usage 43 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 method Supply by the tank (standard) or continuous supply by the pure water equipment (option)
Supply pressure 0.1 MPa to 0.5 MPa
Input/output
specifications Analog output Number of
points Standard: 4 points
Option (3-component specification/2-point meter specification): 8 points
Type Standard: 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
Description Standard: 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 output Number of
points Standard: 16 points
Option (3-component specification/2-point meter specification): 22 points
Type No-voltage output contact
Form Isolated output
Output capacity 250 V AC 3 A
30 V DC 3 A (Only 30 V DC 3 A is available for the “Maintenance” contact)
Status output Meas., Calibration, Standby, Maintenance, SYNCHRONOUS IDLE
1, SYNCHRONOUS IDLE 2, Power, etc.
Alarm output Hi 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 input Number of
points Standard: 1 point
Option (3-component specification/2-point meter specification):
2 points
Type Standard: 4 mA to 20 mA DC
Option: 1 V to 5 V DC
Description Flow rate (full scale can be set as desired), UV/COD meter
concentration
Contact input Number of
points Standard: 9 points
Option (3-component specification/2-point meter specification): 18 points
Type No-voltage a contact input (open collector is available)
Form Isolated input: Common to the (-) side
ON resistance 100 Ω (max.)
Open-circuit
voltage 26 V DC (max.)
Short-circuit
current 13 mA DC (max.)
Function Meas. 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 Display Touch panel type liquid crystal (color)
Load calculation function Standard: TP/TN load calculation function is provided
Option: COD and 2-point meter load calculation function are provided
Option Turbidity compensation function is provided (TN)
(Turbidity compensation wavelength: 275 nm)
Memory function Measurement 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 function Standard: RS-485
Option: RS-232C
Communication protocol Modbus
Printer Provided (recording paper width: 58 mm) With automatic take-up equipment
Reagent Reagent A 0.8 mL per measurement (capacity: 1000 mL)
Solution B 0.2 mL per measurement (capacity: 250 mL)
Solution C 0.1 mL per measurement (capacity: 250 mL)
Solution D 0.1 mL per measurement (capacity: 250 mL)
Solution E 0.19 mL per measurement (capacity: 250 mL)
Solution F 0.2 mL per measurement (capacity: 250 mL)
Span solution 50 mL per measurement (capacity: 1000 mL)
Replacement cycle One month (only under certain storage/usage environment)