Hach PHOSPHAX sigma High Range Bedienungsanleitung

DOC273.98.90146

PHOSPHAX sigma High Range

Supplement to DOC023.98.90397

User manual

03/2017, Edition 3

Table of contents

English..................................................................................................................................................... 5

Deutsch.................................................................................................................................................. 15

英语......................................................................................................................................................... 25

Table of contents

English 5

Specifications

English

Specifications

The PHOSPHAX sigma HR sets itself apart with a larger measurement range. All

necessary technical modifications as compared with the PHOSPHAX sigma are

described in detail in this supplement to the user manual.

Specification Details

Measurement method Reduction method, derived from DIN 38405 D11,

photometric evaluation using IR LED photometer

Measurement ranges 0.01–0.50 to 10.0 mg/L P total phosphate in 0.1 mg/L increments

0.01–0.50 to 10.0 mg/L P orthophosphate in 0.1 mg/L increments (depending on design)

Measurement interval 15–240 minutes at 5 minute steps, "remote" and "off"

Time of measurement 0–600 minutes

Sample requirement Approximately 100 mL/h

Ambient temperature + 5 °C to + 40 °C (41 °F to 104 °F)

Calibration Automatic at selectable intervals

Inspection interval 3 months

Maintenance

requirements Typically, approximately 1/2 an hour per week

Reagent storage 3 months (standard solution 6 to 12 months)

Outputs 2 current outputs: 0/4...20 mA, maximum 500 Ω

2 limit contacts: isolated, 24 V 1 A

Service interface: RS 232

Interface: bus-compatible (optional)

Type of protection In line with IP 54

Power supply 230 V AC voltage ± 10%/50–60 Hz

Power consumption Approximately 310 VA (incl. refrigerator)

Dimensions: W x H x D 550 mm x 1190 mm x 390 mm (incl. refrigerating set) (21.65 x 46.85 x 15.35 inches)

Weight Approximately 43 kg (without reagents)

Miscellaneous Cleaning unit, data logger, graphical display showing hydrograph curve

6 English

Safety information

Read the instructions carefully and in full before unpacking, setting up or operating this

instrument. Please pay attention to all danger and caution statements. Failure to do so

could result in serious injury to the operator or damage to the instrument.

To ensure that the protection provided by this instrument is not impaired, do not use or

install this instrument in any manner other than that specified in this user manual.

Use of hazard information

DANGER

Indicates a potentially or imminently hazardous situation that, if not avoided, will

result in death or serious injury.

WARNING

Indicates a potentially or imminently hazardous situation that, if not avoided, could

result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that, if not avoided, may result in minor

or moderate injury.

Important note: Indicates a situation that, if not avoided, could lead to damage to the

instrument. Important information that requires special emphasis.

Note: Information that supplements points in the main text.

Precautionary labels

Pay attention to all the labels, tags and stickers attached to the instrument. Personal injury

or damage to the instrument could occur if not observed. A symbol, if noted on the

instrument, will be included with a danger or caution statement in the manual.

Product overview

The PHOSPHAX sigma HR is a process photometer used to determine the total

phosphate and orthophosphate (depending on design) present in secondary effluent and

surface water. This supplement to DOC023.53.03113 is only valid in conjunction with the

complete PHOSPHAX sigma user manual DOC023.53.03113.

The PHOSPHAX sigma HR sets itself apart with a larger measurement range. All

necessary technical modifications as compared with the PHOSPHAX sigma are

described in detail in this supplement to the user manual.

This symbol, if noted on the instrument, references the operation and/or safety information in the user's manual.

Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after

August 12, 2005, but instead must be collected separately. In accordance with European local and national

regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life

equipment to the manufacturer for disposal at no charge to the user.

Note: For return for recycling, please contact the instrument manufacturer or supplier for instructions on how to

return old or end-of life electrical equipment, manufacturer-supplied electrical accessories and all auxiliary items for

proper disposal.

English 7

Theory of operation

In an acidic solution with molybdate ions in the presence of antimony ions,

orthophosphate ions create a complex that can be reduced to phosphorus molybdenum

blue using ascorbic acid. The intensity of the color is proportional to the volume of

orthophosphate contained in the sample in the given measurement range.

Polyphosphate and some organic phosphorus compounds can be hydrolyzed to

orthophosphate by heating in a strong acidic solution. Resistant phosphorus compounds

are digested with sodium persulfate. Temperatures well in excess of 100 °C (212 °F) and

high pressures are obtained with the PHOSPHAX sigma HR. Such short digestion times

can only be achieved under these extreme conditions.

Determination of total phosphate

•The cuvette is rinsed with the sample and reagent B.

•Reagent A, reagent B and the homogenized sample are pumped into the cuvette and

mixed.

•The solution is then briefly heated under pressure and immediately cooled again. The

phosphorus compounds are split into orthophosphate.

•Reagents C and D are pumped into the cuvette and mixed.

•The intensity of the blue coloration is measured photometrically.

Determination of orthophosphate (depending on design)

•The cuvette is rinsed with the sample and reagent B.

•Reagent A is pumped into the cuvette, heated and cooled again, which creates

sulfuric acid.

•The homogenized sample and reagents B, C and D are pumped into the cuvette and

mixed.

•The intensity of the blue coloration is measured photometrically.

Disruptions

The ions listed in the table below were checked individually up to the given concentrations.

The overall effect as well as the influence of other ions was not recorded. The following do

not cause disruption:

40 g/L SO42–200 mg/L J–

20 g/L Cl–100 gm/L SiO2

8 g/L K+, Na+80 gm/L Hg2+

2 g/L Ca2+ 50 gm/L Sn2+

800 mg/L Mg2+ 40 mg/L Pb2+

400 mg/L CO32–, NO2–, Fe3+, Fe2+, Cd2+, NH4,

AL3+, Zn2+, Cu2+, Co2+, Ni2+, Mn2+

20 mg/L Ag+, Cr3+

2 mg/L Cr6+

8 English

Installation

Please pay attention to all information related to wall mounting, installation of infeed and

discharge points as well as all information about electrical connections in the PHOSPHAX

sigma user manual DOC023.53.03113.

Items supplied

Figure 1 Items supplied

1PHOSPHAX Σsigma including refrigerator 5Wear parts set (new instrument)

2Small parts set 6LZP 573 6 m discharge hose

3LCW 893 reagent set

LCW 824 standard solution (2 mg/L)

7Screw caps with hose hole for reagent canister

4Maintenance schedule, certificate of compliance

English 9

Installation

Plan of hose system

Metering and valve hoses

All metering and valve hoses for a piece of equipment must be identifiable by means of

set colors.

Figure 2 Plan of hose system

1Discharge hose 6Reagent A metering hose

2Valve hose 7Reagent B metering hose

3Sample metering hose 8Sample infeed

4Reagent C metering hose 9Discharge

5Reagent D metering hose

10 English

Installation

WARNING

The metering hoses must always be disconnected from the relevant canisters

before any work is carried out to the metering or valve hoses. (Risk of reflux)

Metering hoses are hoses that connect to the sample and reagent pumps. Each metering

hose must only be connected to the applicable sample or reagent pump.

Important note: Replace the sample metering hose, the discharge hose and the hose for

reagent B after 3 months. Brush the pump rollers on the sample pump with silicon paste

(Figure 3). Replace the metering hoses for the reagents A, B, C and D after 6 months.

Valve hoses are connections between the hose pinch valves.

Important note: Valve hoses must be replaced after 6 months.

Figure 3 Application of silicon paste

Color code Designation Course in instrument

Purple Discharge hose

Runs from the cuvette intake (Figure 2, position

1, page 9) via the discharge pump to the exterior

wall

Red Sample metering hose

Runs from hose pinch valves Q1 and Q2 (T piece

valve hose) via the sample pump to the cuvette

intake (Figure 2, position 3)

Red Reagent B metering hose

Runs from reagent B canister via the hose pinch

valve Q3 and via the sample pump to the cuvette

intake (Figure 2, position 7)

Yellow Reagent C metering hose

Runs from reagent C canister via the reagent

pump C, D (dual-channel pump) to the cuvette

intake (Figure 2, position 4)

Black Reagent D metering hose

Runs from reagent D canister via the reagent

pump C, D (dual-channel pump) to the cuvette

intake (Figure 2, position 5)

Orange Reagent A metering hose

Runs from reagent A canister via the hose pinch

valve QA in the refrigerator and via the reagent A

pump to the cuvette

intake (Figure 2, position 6). The small air hose at

the bottom end (also marked orange) is inserted

into the front slot.

Red Valve hose Feed hose for sample, reagent B, standard

solution and air (Figure 2, position 2).

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