Hach Surface Scatter 7 sc Bedienungsanleitung

4500089

Instruction Sheet

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

Safety information

Please read this entire document before unpacking, setting up, or operating this equipment.

Pay attention to all danger and caution statements. Failure to do so could result in serious

injury to the operator or damage to the equipment.

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

this equipment in any manner other than that specified in this document.

Use of hazard information

DANGER

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

result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that may result in minor or moderate injury.

Important Note: Information that requires special emphasis.

Note: Information that supplements points in the main text.

Precautionary labels

Read all labels and tags 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.

CAUTION

Read and follow these instructions carefully to avoid personal injury and damage to the

instrument. Only personnel qualified to do so should conduct the

installation/maintenance tasks described in this instruction sheet.

ATTENTION

Lire et suivre ces instructions attentivement pour éviter les risques de blessures de

personnes et de détérioration de l’appareil. Les tâches d’installation et d’entretien

décrites dans cette partie de la fuelle d’instructions doivent être seulement effectuées

par le personnel qualifié pour le faire.

ADVERTENCIA

Lea y siga cuidadosamente estas instrucciones a fin de evitar accidentes personales y

daños al instrumento. Las tareas de instalación y mantenimiento descritas en esta hoja

de instrucciones deberán ser efectuadas únicamente por personas debidamente

cualificadas.

Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12

August of 2005. In conformity 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 Producer for disposal at no charge to

the user.

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

end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

WARNHINWEIS

Lesen und befolgen Sie diese Instruktionen aufmerksam, um Verletzungen von

Personen oder Schäden am Gerät zu vermeiden. In diesem Abschnitt beschriebene

Installations- und Wartungsaufgaben dürfen nur von qualifiziertem Personal

ausgeführt werden.

AVISO

Leia e siga atentamente as presentes instruções para evitar ferimentos pessoais e

não danificar o instrumento. As tarefas de instalação/manutenção descritas nestas

instruções só poderão ser executadas por pessoal qualificado para o fazer.

Benefits

The SS7 sc-HST was developed to measure turbidity in samples at high temperatures.

The SS7 sc-HST uses fittings molded from black polypropylene to minimize leakage.

These fittings can withstand higher working temperatures than standard PVC. A flow

multiplier pulls moisture-laden air out of the enclosure and reduces condensation. The

flow multiplier is powered by compressed air and captures the vapors before they can

condense inside the instrument enclosure. The vents in the enclosure act as air inlets

rather than air outlets.

Unpacking

Remove the kit from the shipping container and inspect each item for damage. Verify that

all items are included. If any items are missing or damaged, contact Hach Customer

Service in Loveland, Colorado. The Hach Company toll free phone number for customers

within the United States is 800-227-4224. Customers outside the United States should

contact their regional Hach office or distributor.

Installation

Note: This kit will only work on an SS7 sc Turbidimeter that has a molded slant tube (one continuous

piece). If the turbidimeter has a fabricated slant tube (made from PVC components), order a molded

one (Cat. No. 4500200) and install it before proceeding.

DANGER

All electrical connections should be made by a qualified technician to assure

compliance to all applicable electrical codes.

DANGER

Tous les branchements électriques doivent être effectués par un technicien

qualifié, afin d'assurer le respect de toutes les normes électriques applicables.

PELIGRO

Todas las conexiones eléctricas deben ser realizadas por un técnico capacitado

para asegurar el cuplimiento con todos los códigos eléctricos.

GEFAHR

Um zu gewährleisten, daß alle elektrischen Anschlüsse den VDE-Vorschriften und

gegebenenfalls den Zusatzvorschriften der zuständigen Elektrizitätswerke sowie

anderen zutreffenden Sicherheitsnormen entsprechen, dürfen diese Anschlüsse

nur von geschultem Fachpersonal hergestellt werden.

PERIGO

devem ser realizadas por técnico qualificado para garantir o cumprimento de todas

as normas elétricas aplicáveis.

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

1. If upgrading a standard SS7 sc (or older) turbidimeter, remove the hose fittings from

the slant tube and the bulkhead adapters along with the hoses inside the unit. Then

remove the bulkhead adapters at the bottom of the unit and proceed to step 2.

If upgrading an older SE (severe environment) turbidimeter, complete the steps above

and then disconnect power to the heater (if existing).

a. Remove the heater and the control box and disconnect the wiring to the power

source.

b. Remove the mounting screws from the electrical control box, the heater, and the

adapter to the enclosure. Discard the screws.

c. Plug the hole used for the electrical connections with a small, oil-tight hole seal.

d. Thoroughly clean the unit and make any required repairs to it.

2. Using a 15/8-inch hole saw, drill a 1.625 inch diameter hole on the upper-left side of the

unit as shown in Figure 1 and Figure 2 (this hole may already exist).

3. Install the ¾-in. gray PVC bulkhead fittings in the new hole as shown in Figure 2.

4. Install the white polypropylene bulkhead fittings in the bottom of the unit as shown in

Figure 2.

5. Install the new (black) hose adapter fittings using Teflon tape and tighten them

properly with a wrench. Orient the ¾-in. elbows as shown in Figure 2.

6. Install the hoses between the slant tube and the bulkhead fitting on the bottom of the

unit. Attach the hoses with the stainless steel clamps.

Note: Hose is furnished in one piece. Cut each piece to desired length.

7. Install the ¾-in. hose barb elbow in the vent cover and the straight hose fitting in the

PVC bulkhead fitting leading to the flow multiplier. Teflon tape is not required.

8. Loosen the screws that hold the light source in place before installing the vent cover.

Figure 1 Location of 1.625-inch diameter hole (side view of instrument case)

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

9. Install the vent cover on the top of the slant tube using the threaded disk and ¼-inch

screw. Tighten until snug.

10. Tighten the screws that hold the light source.

11. Check the alignment of the light source after installing the cover and readjust if

necessary, using the new alignment plate included in the kit. See the Surface

Scatter 7 sc Turbidimeter User Manual (Cat. No. DOC026.53.00769) for alignment

instructions.

12. Connect the elbow in the vent cover and the straight hose fitting in the PVC bulkhead

adapter with a section of ¾-in. hose. No clamps are required.

13. Screw the flow multiplier into the outside of the PVC bulkhead adapter as shown in

Figure 2.

14. Connect a filter/pressure regulator to the flow multiplier. (The filter/pressure regulator,

tubing, and tubing fittings are not provided in this kit.) The flow multiplier has a 1/8-in.

NPT male fitting. A ¾-in. hose should be connected to the output of the flow multiplier

and routed to a suitable place to vent the fumes and/or condensate coming out of

the hose.

15. Set the pressure regulator to 20 psi initially. Adjust the flow up or down as needed.

16. The enclosed drain trap should be used to prevent air from being drawn in through the

drain. See Figure 2.

17. When reconnecting the hydraulics to the bottom of the unit, hold the ¾-in. bulkhead

fittings on the inside of the enclosure with the door open.

18. Replace the label displaying the part number and serial number of the sensor unit (not

the control unit) with the label enclosed in the upgrade kit. Thoroughly clean the

enclosure surface where the old label was attached and place the new label in the

same location. This identifies the product as a reconditioned product (for service and

compliance purposes).

19. Calibrate the instrument using the calibration cup as described in the user manual.

Operation

•If condensation forms in the enclosure, increase the air pressure (and flow) by

increasing the air pressure setting of the pressure regulator for the flow multiplier.

•Make sure the bubble trap is working. Bubbles on the surface of the liquid will cause

incorrect readings.

•If deposits accumulate inside the unit, wash the inside with warm water spray.

•The vent cover at the top of the slant tube can be removed for cleaning if necessary.

Loosen the light source before removing the cover. Check the alignment of the light

after reinstalling the cover using the new alignment plate included in the kit. Make sure

the cover sits flat on top of the slant tube when reinstalled.

•Calibrate the instrument using the calibration cup as described in the user manual.

Note: Do not operate the instrument without the cover.

Note: Do not operate the instrument unless the flow multiplier is also operating.

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

Figure 2 Surface Scatter 7 sc and HST upgrade components

HACH COMPANY

WORLD HEADQUARTERS

Telephone: (970) 669-3050

FAX: (970) 669-2932

FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:

Call 800-227-4224

Contact the HACH office or distributor serving you.

www.hach.com techhelp@hach.com

In the U.S.A. –

Outside the U.S.A. –

On the Worldwide Web – ; E-mail –

toll-free

Converting the Surface Scatter®7 sc Turbidimeter to SS7 sc-HST

Replacement parts

Description Quantity Catalog number

SS7 sc Turbidimeter—HST Upgrade Kit 14500043

Includes:

Clamp, hose, worm drive 316 SST for ¾ in. ID tubing 44666700

Clamp, hose, worm drive 316 SST for 1 in. ID tubing 2 4666800

Cover, vent SS7 sc 14029400

Fitting, bulkhead, ¾ in. NPT, polypropylene 2 4031100

Fitting, bulkhead, 1 in. NPT, polypropylene 14035500

Fitting, ¾ in. NPT, modified street elbow (flow multiplier) 1 4030100

Fitting, hose barb, 1.00 OD x 1 NPT 34037200

Fitting, elbow, ¾ OD tube x ¾ NPT 3 4049600

Fitting, hose barb, ¾ OD x ¾ NPT, gray 64043900

Fitting, bulkhead ¾ FPT x ¾ FPT PVC 1 4501100

Instructions, SS7 sc–HST upgrade 14500089

Label, serial number 1 4507200

Orifice, flow multiplier 14030200

Screw ¼-20 x 1 PAN SST PHIL 1 785811

Seal, oil-tight 0.88 in. diameter hole, street 14221000

Tubing Norprene, ¾ in. ID 5 ft. 4666500

Tubing Norprene 1 in. ID 1 ft. 4666600

Template, light source alignment 1 4507600

Threaded Disk 14029900

Trap Assembly, 1 in. CPVC 1 4052600

Accessories

Description Quantity Catalog number

Auto Flush Kit (120 VAC) 14669212

Auto Flush Kit (220 VAC) 1 4669222

Bubble Trap/Head Regulator 14668000

Flow Meter, 100–1600 mL/min. 1 4028400

Heat Exchanger Unit (sample cooler) 14855100

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