Application

TPNA300 Automatic Total Nitrogen/Phosphorus Monitoring System

TPNA-300 Automatic Total Nitrogen/Phosphorus Monitoring System

概要

Everything from precise measurement to reduced running costs. HORIBA-leading the world in practical environmental analysis technology will give a benefit for Total Nitrogen/Phosphorus monitoring.

Total nitrogen, total phosphorus. To measure these two new targets in the 5th of Total Water Contaminants Regulation enforced in Dec. 2001 in Japan, the TPTN-300 offers the ultraviolet oxidation decomposition method that is superior in maintenance and running costs. Not only does the TPNA-300 meet the real need for a precise measurement system, it reduces maintenance time and lowers costs in a variety of ways, from reducing reagent and pure water consumption to decreasing the number of replacement parts. It is a practical system that factors maintenance and running costs into compliance with future standards.

特征

  • A small footprint makes it possible to store in a case designed for outdoor use. UV monitor (OPSA-120) can also be stored with it.
  • Features a built-in pollutant load volume operation function that makes it possible to compute the pollutant load of total nitrogen and total phosphorus from the flow-volume signal.
  • Precision measurement is possible even if sea water is mixed with the sample water (optional sea water adjustment function).
  • Possible to measure the density of two components, total nitrogen and total phosphorus, at the same time on one monitoring system.
  • Using an ultraviolet oxidation decomposition method makes it possible to perform preprocessing at a low temperature (100°C or lower) and atmospheric pressure, which enables much easier maintenance than with traditional autoclave methods.
  • High correlation with conventional manual analysis methods.
  • Offers a wide variety of functions, such as automated zero-point adjustment and correction.
  • Reagents flow by means of a pump. No extra equipment or construction for obtaining an air source for the measurement system is necessary.

制造: HORIBA

規格

Model

TPNA-300

Name

Automatic Total Nitrogen/Phosphorus Monitoring System

Measurement methods

Total nitrogen:
Alkaline potassium peroxodisulfate UV oxidation - UV absorption method

Total phosphorus:
Potassium peroxodisulfate UV oxidation - molybdenum blue absorption method

Measurement range

Standard range:

Total nitrogen: 0 to 2 mgN/L
Total phosphorus: 0 to 0.5 mgP/L

One step dilution range:

Total nitrogen: 0 to 5/10/20/50 mgN/L
Total phosphorus: 0 to 1/2/5/10 mgP/L

Two step dilution range:

Total nitrogen: 0 to 100/200/500/1000 mgN/L
Total phosphorus: 0 to 20/50/100/250 mgP/L

 

Number of measurement ranges

1 range (standard)
*However, 0.2 ≤ total nitrogen full scale/total phosphorus full scale ≤ 100.

2 ranges (optional) *Please consult separately.

Measurement points

1 point (standard), 2 points (optional)

Measurement time

60 minutes

Repeatability

Within ±3% full scale (standard range, One step dilution range)
Within ±5% full scale (Two step dilution range)

Sample water conditions

Temperature: 2 to 40°C; Flow rate: 0.5 to 5 L/min (overflow tank flow)
A sea water adjustment function (optional) is available for when sea water is mixed in.

*Please consult separately concerning sample water conditions

Blank water conditions

Usage volume:

50 L/month *This may increase/decrease depending on the measurement range

Condition:

Should not contain nitrogen or phosphorus compounds

Fixed pure water tank (standard), continuous supply via pure water supply system (optional)

 

Analog output

Measurement values:

Can switch between measurement points and equivalent number

Load volume:

Can switch between measurement points and equivalent number DC4 to 20/0 to 16 mA

 

Analog input

Flow rate meter input

Contact input

Measurement start, Correction start, Forced start, Time adjustment, Flow meter under maintenance, Flow meter damaged, Flow meter power off, Flow meter no waste water, Measurement line selection (2-point metering option)

Contact output

Measuring line 1 (line 2 optional), Correcting, Standby, Maintenance, Power off, Synchronous signal, Density (max), Warning: Load volume (max), Warning: System failure, No sample water, Insufficient sample water, No pure water, Waste water tank full, No blank water (optional)

Communications output

RS-232C output

Power

AC 100 V±10 V 50/60 Hz Approx. 400 VA

Weight

Approx. 80 kg

External dimensions

460 (W) x 425 (D) x 1600 (H) mm

Paint color

Munsell 5PB8/1 (or equivalent)

Ambient temperature & humidity

2 to 40°C, 85% humidity or lower (no condensation)

Installation environment

Indoors, good ventilation, no direct sunlight.