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Hach Surface Scatter 7, Manual

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Hach Surface Scatter 7 Manual Download Page 9

Figure 4  Relay function

1   

Duration

3   

Interval

2   

Off delay

4   

Time (x-axis)

Set the flow rate

1.

Push 

MENU

.

2.

Select Test/Maint>Test Relay>Energize to do a flush.

3.

Slowly open the flow control valve to set the flow rate for the auto flush. Refer to 

Figure 3

 on page 7.

Make sure that the flow rate is sufficient to remove sediment but does not cause
water to come out of the turbidimeter.

4.

When the flow rate is correct, select De-energize to stop the flush.

Replacement parts

Note: Product and Article numbers may vary for some selling regions. Contact the appropriate

distributor or refer to the company website for contact information.

Description

Item no.

Solenoid valve, 3-way, 120 VAC

2628400 

Solenoid valve, 3-way, 230 VAC

2628402

Flow control valve, ½-inch NPT PVC

4668800 

Reducer bushing, ¾-inch MPT x ½-inch FPT

4698400 

9

Summary of Contents for Surface Scatter 7

Page 1: ...ppropriate mechanisms to protect processes during a possible equipment malfunction Please read this entire manual 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 Make sure that the protection provided by this equipment is not impaired Do not use or i...

Page 2: ...o change without notice Table 1 shows the specifications for the solenoid valves in the kit Table 1 Solenoid valves Specification Details Enclosure NEMA 4 Wetted materials Viton CPVC and Teflon Weight 2 44 kg 5 38 lb Power requirements 4669212 120 VAC 60 Hz 3 A maximum 4669222 230 VAC 50 Hz 3 A maximum Pipe connections inch NPT Water temperature 93 C 200 F maximum Water flow rate 30 3 lpm 8 gpm ma...

Page 3: ...3x Installation D AN GE R Multiple hazards Only qualified personnel must conduct the tasks described in this section of the document Wall mounting Attach the solenoid valves to a flat vertical surface The valve orientation is not important Make sure that the valve mounting is sufficient to hold the weight of the solenoid valves Install the solenoid valves in a location where there is sufficient sp...

Page 4: ...l state and local electrical codes Items to collect 18 12 AWG wire as determined by the load application Cable strain relief fitting cable gland 1 Remove power to the sc controller 2 Connect the solenoid valves to an sc controller relay Relay A B C or D Refer to Figure 2 Refer to the sc controller documentation for wiring instructions 3 Connect Terminal 1 in each solenoid valve to the neutral line...

Page 5: ...Figure 2 Wiring overview 1 Solenoid valve for cooling water flush water inlet 4 Neutral line 2 sc200 controller 5 Solenoid valve for sample inlet 3 Power line 5 ...

Page 6: ...ings are inch NPT The solenoid valve fittings are inch NPT Install the supplied reducer bushings on the solenoid valve fittings to connect inch NPT pipe If the sample temperature is more than 50 C 122 F use CPVC or other heat resistant material e g PVC pipe or flexible polypropylene for all plumbing connections made on the sample line to the solenoid valve Make sure to use pipe materials with a re...

Page 7: ...ve for cooling water flush water inlet 11 Sample inlet 5 Bubble trap 12 Sample to drain 6 Cooling water Flush water to turbidimeter 13 Solenoid valve for sample inlet 7 Outlet to drain Table 2 Flow pathway legend A Sample to turbidimeter normal flow D Cooling water Flush water to turbidimeter flush flow B Sample to drain flush flow E Bubble trap water to drain C Cooling water Flush water flow to d...

Page 8: ...lose on a schedule 5 Set the controller to hold the last measured turbidity value on the analog outputs when the NO relay contact is closed as follows a Select Set Transfer Inactive b Select Fail Safe No c Select Activation d Select Hold Outputs Set Outmode Hold Outputs e Select Set Channels None The measured value will be transmitted on a 4 20 mA loop 6 Push BACK 7 Select and configure each optio...

Page 9: ...t to remove sediment but does not cause water to come out of the turbidimeter 4 When the flow rate is correct select De energize to stop the flush Replacement parts Note Product and Article numbers may vary for some selling regions Contact the appropriate distributor or refer to the company website for contact information Description Item no Solenoid valve 3 way 120 VAC 2628400 Solenoid valve 3 wa...

Page 10: ...www hach com HACH LANGE GMBH Willstätterstraße 11 D 40549 Düsseldorf Germany Tel 49 0 2 11 52 88 320 Fax 49 0 2 11 52 88 210 info hach lange de www hach lange de HACH LANGE Sàrl 6 route de Compois 1222 Vésenaz SWITZERLAND Tel 41 22 594 6400 Fax 41 22 594 6499 Hach Company Hach Lange GmbH 2014 All rights reserved Printed in U S A 06 2014 Edition 1 ...

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