Hach SP-510 Basic User Manual

Tip
Basic User Manual
DOC023.98.80422
SP-510
06/2018, Edition 10
Basic User Manual
Basis-Benutzerhandbuch
Manuel d'utilisation de base
Manual básico del usuario
Manuale di base per l'utente
Grundlæggende brugerhåndbog
Allmän användarhandbok
Osnovni korisnički priručnik
Temel Kullanım Kılavuzu
English..............................................................................................................................3
Deutsch.......................................................................................................................... 23
Français......................................................................................................................... 44
Español.......................................................................................................................... 65
Italiano............................................................................................................................ 86
Dansk............................................................................................................................107
Svenska....................................................................................................................... 127
Hrvatski........................................................................................................................ 147
Türkçe...........................................................................................................................167
2
Table of contents
Specifications on page 3 Calibration on page 17
General information on page 4 Operation on page 18
Installation on page 8 Maintenance on page 18
User interface and navigation on page 16 Troubleshooting on page 20
Startup on page 17
Expanded manual version
For additional information, refer to the expanded version of this manual, which is available on the
manufacturer's website.
Specifications
Specifications are subject to change without notice.
General specifications
Specification Details
Dimensions (W x D x H) 42 x 31.5 x 18 cm (16.5 x 12.5 x 7 in.)
Enclosure rating IP62
Weight 11.3 kg (25 lbs)
Installation environment Indoor
Mount Wall
Pollution degree/installation category 2/II
Protection class I
Altitude Maximum 2000 m (6562 ft)
Light source Class 1 LED (light emitting diode) with peak wavelength of 610 nm.
Estimated 50,000 hours minimum life; hard water and soft water
indicator.
Detector Silicon photo detector
Optical path length 8.89 mm (0.35 in.)
Time delay One reading above the trip point is necessary to trigger a soft-to-hard
water alarm transition. One reading below the trip point is necessary to
trigger a hard-to-soft water alarm transition.
Trip point 0.3, 1, 2, 5, 10, 20, 50 and 100 mg/L. Refer to Trip point specifications
on page 4.
Reagents Buffer and indicator solution. 500 mL of each reagent every 2 months.
Reagent shelf life 1 year
Power requirements 115/230 VAC, 70 VA, 50/60 Hz, 1.25 A Fuse
Electrical connections Two 3-wire barrier terminal blocks. Wire range: 18–12 AWG
(0.75–1.0 mm
2
)
Hard water alarm relay SPDT relay, set to on when the hard water indicator is on. The alarm
can be disabled.
Contact rating 5 A resistive at 100–240 VAC
English 3
Specification Details
Operating temperature 5 to 40 °C (32 to 104 °F)
Storage temperature -40 to 60 °C (-40 to 140 °F)
Operating humidity Relative humidity: 5–95% at different temperatures, non-condensing
Sampling rate New sample: every 1.9 minutes ±5% at 60 Hz; 2.3 minutes ±5% at
50 Hz
Sample flow rate to sample conditioning 50 to 500 mL/minute flow rate necessary (250 mL/minute
recommended)
Inlet pressure to instrument 1 to 5 psig (0.07 to 0.34 bar), 1.5 psig (0.1 bar) is optimum, > 5 psig
(0.34 bar) can cause sample tubing failure
Inlet pressure to sample conditioning 1.5 psig to 75 psig (0.1 to 5.2 bar)
Inlet fitting At instrument, 6.35 mm (0.25 in.) OD polyethylene tubing with quick-
disconnect fitting
Drain fitting Hose barb for 12.7 mm (0.5 in.) ID flexible tubing
Sample temperature range 5 to 40 °C (41 to 104 °F)
Certifications CE, cETLus
Warranty 1 year (EU: 2 years)
Trip point specifications
Alarm trip point Minimum trip value Maximum trip value Temperature influence on trip point
0.3 mg/L 0.22 mg/L 0.38 mg/L –0.03 mg/L per °C
1 mg/L 0.75 mg/L 1.25 mg/L –0.03 mg/L per °C
2 mg/L 1.5 mg/L 2.5 mg/L –0.03 mg/L per °C
5 mg/L 3.75 mg/L 6.25 mg/L –0.06 mg/L per °C
10 mg/L 7.5 mg/L 12.5 mg/L –0.08 mg/L per °C
20 mg/L 15.0 mg/L 25.0 mg/L –0.09 mg/L per °C
50 mg/L 37.5 mg/L 62.5 mg/L –0.29 mg/L per °C
100 mg/L 75.0 mg/L 125.0 mg/L –0.60 mg/L per °C
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate 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.
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English
Make sure 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 manual.
Use of hazard information
D A N G E R
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
W A R N I N G
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious
injury.
C A U T I O N
Indicates a potentially hazardous situation that may result in minor or moderate injury.
N O T I C E
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
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.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential
injury. If on the instrument, refer to the instruction manual for operation or safety information.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public
disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
This symbol indicates the need for protective eye wear.
This symbol identifies a risk of chemical harm and indicates that only individuals qualified and trained
to work with chemicals should handle chemicals or perform maintenance on chemical delivery
systems associated with the equipment.
This symbol indicates that a risk of electrical shock and/or electrocution exists.
This symbol indicates that a risk of fire is present.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device.
Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
Supporting test records reside with the manufacturer.
English
5
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de classe A répond à toutes les exigences de la réglementation canadienne
sur les équipements provoquant des interférences.
FCC Part 15, Class "A" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC
Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications to this equipment not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. This equipment has been tested
and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to
correct the interference at their expense. The following techniques can be used to reduce
interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the
interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect
the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
Product overview
D A N G E R
Chemical or biological hazards. If this instrument is used to monitor a treatment process and/or
chemical feed system for which there are regulatory limits and monitoring requirements related to
public health, public safety, food or beverage manufacture or processing, it is the responsibility of the
user of this instrument to know and abide by any applicable regulation and to have sufficient and
appropriate mechanisms in place for compliance with applicable regulations in the event of malfunction
of the instrument.
The SP-510
Hardness Monitor continuously measures water softener levels to find hardness
breakthroughs based on softener exhaustion. The monitor is used in commercial and industrial water
applications. The monitor has an automatic control system that starts regeneration sequences with
the alarm circuit.
Hardness is measured at different levels as CaCO
3
with the applicable indicator and reagent
solutions. A relay closes when the instrument measures a hardness value that is more than the trip
point. Refer to Figure 1 for the product overview.
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English
Figure 1 Product overview
1 Power switch 7 Keypad
2 Power access port 8 Pump/valve module
3 Relay and alarm contact access port 9 Indicator and reagent bottles
4 Air purge (optional) 10 Sample inlet
5 Access cover 11 Enclosure drain
6 Colorimeter 12 Sample drain
Product components
Make sure that all components have been received. Refer to Figure 2. If any items are missing or
damaged, contact the manufacturer or a sales representative immediately.
English
7
Figure 2 Product components
1 SP-510 Hardness Monitor 5 Indicator solution
2 Installation kit
1
6 Magnesium sulfate solution
3 Maintenance kit
2
7 TitraVer
®
(EDTA) hardness titrant
4 Buffer solution
Installation
D A N G E R
Electrocution hazard. Always remove power to the instrument before making electrical connections.
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Install the instrument
Install this instrument on an indoor wall, away from direct sunlight.
For a complete purge of the sample line during each cycle, install the instrument as close to the
sample point as possible.
Leave sufficient clearance at the bottom and sides for tubing and cable connections.
Refer to Figure 3 and Figure 4.
1
Refer to the installation kit documentation for more information.
2
Refer to the maintenance kit documentation for more information.
8 English
Figure 3 Dimensions for wall installation
Figure 4 Door clearance
Plumb the instrument
C A U T I O N
Fire hazard. This product is not designed for use with flammable liquids.
English 9
C A U T I O N
Chemical hazard. If there is a leak in the fluid system, hazardous substances may leak out of the lower
enclosure. Put the supplied reagent bottle tray or a bucket under the drain to catch any spills.
C A U T I O N
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Use quick-connect type connectors for ¼-inch OD tubes to install the sample inlet and drain
connections.
1. Install 3 feet of tubing in the ½-inch enclosure drain to keep dust out of the analyzer. Refer to
Figure 1 on page 7, item 11.
Note: Make sure that the enclosure drain is open. The drain must be open to remove sample water if leaks
occur.
2. Push the ¼-in OD poly tube on the sample line connector. The tube will "stop" two times as it is
pushed on the connector. For more information, refer to the installation kit documentation.
3. Make sure that the tubes are pushed completely on the connector. Incorrect installation can
cause the tube to come off of the connector when water pressure is applied.
Note: The sample drain connector will install on ½-inch ID flexible tubes (customer-supplied).
Connect the air purge (optional)
An air purge is necessary in an environment with high humidity or caustic vapors. Additional
information is available on the manufacturer's website.
Sample line guidelines
Select a good, representative sampling point for the best instrument performance. The sample must
be representative of the entire system.
To prevent erratic readings:
Collect samples from locations that are sufficiently distant from points of chemical additions to the
process stream.
Make sure that the samples are sufficiently mixed.
Make sure that all chemical reactions are complete.
Connect the sample stream
Install the sample line into the center of a larger process pipe to minimize interference from air
bubbles or bottom sediment. Figure 5 shows examples of good and bad installation.
Keep the sample lines as short as possible to prevent the accumulation of bottom sediment. The
sediment can absorb some of the analyte from the sample and cause low readings. The sediment
can later release the analyte and cause high readings. This exchange with the sediment also causes
a delayed response when the analyte concentration in the sample increases or decreases.
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English
Figure 5 Sampling methods
1 Air 2 Sample flow
Install the pump valve pressure plate
The pressure plate and screws are supplied with the installation kit. Remove the tape from the pump
tubes before installation.
Make sure to turn the screws in small increments and move from one screw to the other so that the
plate is pulled down equally. Do not overtighten. To install the pressure plate, refer to Figure 6.
Figure 6 Install the pressure plate
Install the sample conditioning kit
The sample conditioning kit is supplied with the instrument. The kit removes large particles from the
sample stream with a 40-mesh strainer. The ball valve on the raw sample inlet controls the flow to
the filter. The ball valve on the instrument supply line controls the flow rate of filtered sample to the
instrument. For complete sample conditioning installation instructions, refer to the installation kit
documentation. Refer to Figure 7.
English
11
Figure 7 Sample flow through the conditioning kit
1 Sample flow 4 Bypass tee, unfiltered sample 7 Unfiltered-sample ball valve
(shown open)
2 Bypass flow 5 Flow observation point 8 Low-flow valve option
3 Drainage flow 6 Filtered-sample bypass ball
valve (shown open)
9 High-flow valve option
Electrical installation
D A N G E R
Electrocution hazard. Always remove power to the instrument before making electrical connections.
Remove the access cover
Remove the access cover to connect to the wiring terminals. Refer to Figure 8.
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English
Figure 8 Access cover removal
Electrical connections for conduit
D A N G E R
Electrocution hazard. Use only fittings that have the specified environmental enclosure rating. Obey the
requirements in the Specifications section.
D A N G E R
Electrocution hazard. If this equipment is used outdoors or in potentially wet locations, a Ground Fault
Circuit Interrupt (GFCI/GFI) device must be used for connecting the equipment to its main power
source.
W A R N I N G
Electrocution hazard. Install a 10 A circuit breaker for mains power. Identify the circuit breaker with a
label, as a local disconnect for this equipment.
The instrument has plugs in all of the conduit holes. To keep the IP62 environmental rating, use
liquid-tight sealing-type conduit fittings and cord strain reliefs. Connect the equipment in accordance
with local, state or national electrical codes. If connections are not made through a conduit opening,
install a liquid-tight seal in place of the plugs. Refer to Figure 9.
Figure 9 Power connections
1 Conduit (preferred) 2 Power cord (optional)
English 13
Wiring for power
To connect the instrument to power, refer to Figure 10 and Table 1.
Figure 10 Power connection
1 Voltage switch (in 115 V position) 3 AC power connector
2 Voltage switch (in 230 V position) 4 Fuses (F1 and F2)
Table 1 Terminal wiring
Wire color code Protective earth ground Hot or Ø1 Neutral or Ø2
North America Green Black White
International
electrotechnical
commission (IEC)
Green with yellow line Brown Blue
Select the voltage
N O T I C E
To prevent serious damage to the instrument, make sure that the line voltage is set correctly. Refer to Figure 10
on page 14.
The instrument is set to 115-volt operation at the factory. To change the line voltage to 230-volt
operation, slide the voltage switch to the 230 V position. Refer to Figure 10 on page 14.
Note: The fuses are approved for North American and European use and do not need to be changed with the
voltage.
Connect the alarm relays
C A U T I O N
Fire hazard. Relay loads must be resistive. Always limit current to the relays with an external fuse or
breaker. Obey the relay ratings in the Specifications section.
The current to the relay contacts must be 5 A or less. Make sure to have a second switch available to
remove power from the relays locally in case of an emergency or for maintenance. Power can be
removed with an external switch and a 5 A fuse or with a switched 5 A circuit breaker.
Figure 11 shows the alarm relay contacts connected to the terminal strip with normally open and
normally closed terminations. Terminals are unpowered and rated for 5 A at 100–240 VAC resistive
load.
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English
The relay connector accepts 18–12 AWG (0.75–1.0 mm
2
) wire. Select the necessary wire gage that
operates with the application. A wire gauge less than 18 AWG (0.75 mm
2
) is not recommended.
Figure 11 Alarm connections
Table 2 Relay wiring
Terminal block Terminal 1 Terminal 2 Terminal 3
J7 COM Normally open (NO) Normally closed (NC)
Install the buffer solution
Buffer solutions are formulated at the factory and are ready to install without preparation. Put the
bottle in the instrument as shown in Figure 12 on page 15. Additional information is available on the
manufacturer's website.
Install the indicator solution
Indicator solutions are formulated at the factory and are ready to install without preparation. Put the
bottle in the instrument as shown in Figure 12. Additional information is available on the
manufacturer's website.
Figure 12 Install the buffer and indicator reagents
1 Indicator reagent tube label and bottle 2 Buffer tube label and bottle
English 15
Install the stir bar
A stir bar is included in the installation kit. Install the stir bar in the colorimeter sample cell for correct
operation. Refer to Figure 13.
Figure 13 Install the stir bar
User interface and navigation
Keypad description
Refer to Figure 14 and to Table 3 for the keypad description and navigation information.
Figure 14 SP-510 keypad
Table 3 Keypad description
Key Function Description
1 HARD LED The monitor found hardness in the water. The status indicator light is red.
2 SOFT LED The monitor is in operation and no hardness shows. The status indicator light is green.
3 ALARM OFF Sets the alarm to off. When more cycles are necessary to examine the water, set the alarm
to off. The status indicator light is yellow.
16 English
Table 3 Keypad description (continued)
Key Function Description
4 HARD CAL Completes a hard calibration. Refer to Calibration on page 17. The status indicator light is
yellow.
5 ZERO CAL Completes a zero-point calibration. Refer to Calibration on page 17. The status indicator
light is yellow.
Startup
Start the instrument
Note: Install the pressure plate correctly to prevent sample flow directly into the reagents. Refer to Install the pump
valve pressure plate on page 11.
1. Open the supply valve to the instrument.
2. Let the pressure in the tubes stabilize.
Note: If leaks occur under pressure, examine all connections. Secure connections until all leaks have stopped.
3. Set the power to on.
4. Operate the instrument for approximately 2 hours with the sample and reagents.
Note: The sample cell will have bubbles on the surface until it is fully wetted. The bubbles can cause irregular
readings until the sample flow stabilizes.
Calibration
C A U T I O N
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
Complete a 2-point calibration
Complete a calibration after reagent installation or when an optical system component is replaced.
The standardization procedure makes the sample first hard, then soft.
1. Remove the plug from the top port of the colorimeter. Refer to Figure 13 on page 16.
2. Push HARD CAL. The hard cal LED is on continuously.
3. When the hard cal LED flashes, add two drops of Magnesium Standard Solution into the
colorimeter.
4. When the LED stops flashing and is on continuously, wait for the cycle to complete.
At the end of the cycle, the LED sets to off to show a successful calibration.
5. HARD CAL failure: When the LED starts to flash, push HARD CAL to confirm a hard cal failure.
Do steps 2–4 again.
6. Push ZERO CAL. The zero cal LED is on continuously.
7. When the zero cal LED flashes, add two drops of EDTA Solution, 10 g/L, into the colorimeter.
8. When the LED stops flashing and is on continuously, wait for the cycle to complete.
At the end of the cycle, the LED is set to off to show a successful calibration.
9. ZERO CAL failure: When the LED starts to flash, push ZERO CAL to confirm a zero cal failure.
Do steps 1–7 again.
10. Replace the plug in the top port of the colorimeter.
English
17
Operation
After the instrument power is set to on, the SOFT LED flashes until the first reading cycle is
completed. The cycle takes 2 minutes. Then, the SOFT LED shows a stable green light.
The instrument operates maintenance-free for a minimum of 2 months. Periodically, do a visual
check to see if bubbles are in the tubing. If there are bubbles, look for an air leak. Refer to
Maintenance schedule on page 18 for maintenance tasks.
Maintenance
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Maintenance schedule
Table 4 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions can increase the frequency of some tasks.
Table 4 Maintenance schedule
Task 2 months 3 months 6 months 1 year As necessary
Replace the reagent on page 19 x
Replace the pump tubes on page 19 x
3
x
4
Replace the tubing on page 19 x
Clean the colorimeter on page 19 x
Replace the sample conditioning filter on page 20 x
Replace the fuse on page 20 x
Clean the instrument
Clean the exterior of the instrument with a moist cloth and a mild soap solution and then wipe the
instrument dry as necessary.
Clean the instrument interior
C A U T I O N
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
Refer to the MSDS for instructions to safely clean reagent spills and leaks. Obey all local and federal
regulations to dispose of cleaning materials.
3
Ambient operating temperatures more than 27 °C (80.6 °F)
4
Ambient operating temperatures less than 27 °C (80.6 °F)
18 English
Clean spills
C A U T I O N
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
1. Obey all facility safety protocols for spill control.
2. Discard the waste according to applicable regulations.
Replace the reagent
C A U T I O N
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Note: Do not pour the remaining reagent into new bottles.
One 500-mL bottle of each buffer and indicator solution can be used for approximately 2 months.
1. Discard the old containers with remaining contents in compliance with MSDS and regulatory
requirements.
2. Install the new bottles. Refer to Install the buffer solution on page 15 and Install the indicator
solution on page 15.
Change the alarm trip point
Install the applicable buffer and indicator solution to change the alarm trip point to a different
hardness level. Let the instrument operate for 2 hours to purge the used reagents. Calibrate the
instrument again. Refer to Trip point specifications on page 4 and to Calibration on page 17.
Replace the pump tubes
Over a period of time, the clamping action of the pump/valve module will soften the tubing. This
causes the tubing to break and prevents liquid flow. Leaks can occur. The tubing wear is increased at
high temperatures. Therefore, the pump tube replacement schedules are based on the ambient
operating temperature. Refer to Maintenance schedule on page 18 for the maintenance interval.
Refer to the documentation supplied with the maintenance kit.
Replace the tubing
The manufacturer recommends that one tube is replaced at a time. Refer to the documentation
supplied with the maintenance kit.
Clean the colorimeter
W A R N I N G
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
The colorimeter measuring cell can collect sediment or cause layers to grow on the inside walls.
Clean the cell with an acid solution and a cotton swab on a monthly basis.
English
19
Items to collect:
Sulfuric acid standard solution, 19.2 N, 100 mL MDB
Wooden or paper cotton-tipped swab
Bent steel paper clip
Stir bar (optional)
1. Remove the plug from the top port of the colorimeter. Refer to Figure 13 on page 16.
2. Remove the magnetic stir bar with a bent steel paper clip as a retrieval tool.
3. Use the pipette to add 2–3 drops of 19.2 N sulfuric acid standard solution in the colorimeter.
Note: Lower normality sulfuric acid is not sufficient to clean the colorimeter.
4. Let the sulfuric acid stay in the colorimeter for 15 minutes.
5. Use a wooden or cotton-tipped swab to clean the interior surfaces of the colorimeter cell. Move
the cotton-tipped swap gently up and down.
Note: Do not use a plastic swab to clean the colorimeter with sulfuric acid. The acid will dissolve the plastic.
6. Make sure that the measurement cell is dry.
7. Clean the stir bar with water or alcohol or replace the stir bar.
8. Replace the plug in the top port of the colorimeter.
Replace the sample conditioning filter
Examine the sample conditioning filter regularly when lots of solids are in the sample. Replace the
sample conditioning filter if necessary. Refer to Maintenance schedule on page 18 for the
maintenance interval. Refer to the documentation supplied with the installation kit.
Replace the fuse
D A N G E R
Electrocution hazard. Remove power from the instrument before doing maintenance or service
activities.
D A N G E R
Fire hazard. Use the same type and current rating to replace fuses.
Remove the two fuses (F1 and F2) and replace them with two new fuses with the same
specifications, T, 1.25 A, 250 V. The same fuse rating is used for the 115 V and for the 230 V
operation. Refer to Figure 10 on page 14.
Troubleshooting
Problem Possible cause Solution
The SOFT LED light is not on and
the pump motor does not operate.
No power
Make sure that the power switch is set
to on.
Connect the power cord.
Replace the fuses if necessary.
The SOFT LED light is not on and
the pump motor does operate.
Problem with the power
supply
Replace the main circuit board. Contact
technical support.
20 English
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Hach SP-510 Basic User Manual

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Basic User Manual

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