Hach Surface Scatter 7 sc User manual

1
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.

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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.

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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)

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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.

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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: [phone]
FAX: [phone]
FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:
Call 800-227-4224
Contact the HACH office or distributor serving you.
www.hach.com [e-mail]
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
© Hach Company, 2006 Edition 2 August 2006 jk/dk