Hach EZ Series Quick manual

DOC023.97.90633
EZ-series
12/2022, Edition 7
Basic User Manual
Manuel d'utilisation de base
Manual básico del usuario
Manual básico do usuário
基本用户手册
基本取扱説明書
기본 사용 설명서
คู่มือผู้ ใช้เบื�องต้น

Table of Contents
English..............................................................................................................................3
Français......................................................................................................................... 37
Español.......................................................................................................................... 72
Português.................................................................................................................... 107
中文............................................................................................................................... 142
日本語........................................................................................................................... 173
한국어........................................................................................................................... 206
.................................................................................................................................. 239
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Table of Contents
1 Legal information on page 3
2 Specifications on page 3
3 Online user manual on page 4
4 General information on page 5
5 Installation on page 10
6 User interface and navigation on page 22
7 Startup on page 22
8 Operation on page 25
9 Maintenance on page 25
10 Troubleshooting on page 34
11 Replacement parts and accessories on page 36
Section 1 Legal information
Manufacturer: AppliTek NV/SA
Distributor: Hach Lange GmbH
The translation of the manual is approved by the manufacturer.
Section 2 Specifications
Specifications are subject to change without notice.
Table 1 General specifications
Specification Details
Dimensions (W x H x D) 460 × 688 × 340 mm (18.11 × 27.09 × 13.39 in.)
Enclosure Enclosure rating: IP44; indoor use only
Enclosure material: ABS, PMMA and coated steel
Weight 25 to 40 kg (55 to 88 lb) (based on analyzer model)
Power requirements 110–240 VAC ±10%, 50/60 Hz1
Power consumption 150 VA maximum1
Installation category II
Pollution degree 2
Operating temperature 10 to 30 °C (50 to 86 °F); 5 to 95% relative humidity, non-condensing, non-corrosive
Storage temperature -20 to 60 °C (-4 to 140 °F), ≤ 95% relative humidity, non-condensing
Instrument air feed Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air
Minimum pressure: 6 bar (600 kPa or 87 PSI)
Demineralized water For rinsing and/or dilution
Drain Atmospheric pressure, vented, minimum Ø 64 mm
Earth connection Dry and clean grounding pole with low impedance (< 1 Ω) with an earth cable of >
2.5 mm2 (13 AWG)
Analog inputs Electrodes, temperature, conductivity, colorimeter
Analog outputs Two to four 4–20 mA; maximum load: 500 Ω, galvanically isolated2
Digital inputs Four digital inputs: remote start/stop (potential-free contact) (optional)
Digital outputs Four potential-free digital outputs (FCT) to control internal valves/pumps; 24 VDC
Four powered digital outputs to control external vavles/pumps; 24 VDC, 500 mA
1Power requirements and consumption are based on the analyzer model, refer to the analyzer
serial number plate for detailed information.
2Optional modules are available to add a maximum of 10 analog outputs to the analyzer.
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Table 1 General specifications (continued)
Specification Details
Communication USB port for data transfer
Optional: Ethernet, Modbus
Relay Five power relays (PCT), contact loading maximum 24 VDC, 0.5 A (resistive load)
Five potential free contact (FCT), maximum loading 24 VDC, 0.5 A (resistive load)
Ethernet connection Controller: Intel 82551ER
Transfer rate: 10/100 Mbps
Connector: RJ45 twisted pair (10 Base T / 100 Base T)
Cables: S/STP (category 5)
Alarms Malfunctioning alarm (potential free contact)
User interface IP65 flat color TFT touch screen (5.7 in.)
Ethernet 10 M (RJ45) NE 2000 compatible, Compact flash slot
System clock Battery life 4 years (approximately)
Certifications CE, ETL certified to UL and CSA safety standards, UKCA
Warranty USA: 1 year, EU: 2 years
Table 2 Ethernet configuration (optional)
Specification Description
Connection Remote TCP/IP server
IP address 192.168.10.1803
Service port 502
Modbus point type 40001–...
Read/write protocol Holding register
Table 3 RS232/485 configuration (optional)
Specification Description
Baud rate 9600
Parity None
Data bits 8 (word length)
Stop bits 1
Protocol None
Modbus point type 40001–40100 (holding register)
Transmission mode RTU
Device ID (default) 1
Section 3 Online user manual
This Basic User Manual contains less information than the User Manual, which is available on the
manufacturer's website.
3Standard value, user-programmable
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Section 4 General information
In no event will the manufacturer be liable for damages resulting from any improper use of product or
failure to comply with the instructions in the 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.
4.1 Safety information
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 soley 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.
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.
4.1.1 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.
WARNING
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.
N O T I C E
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
4.1.2 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 on the instrument is referenced in the manual with a
precautionary statement.
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.
This symbol indicates the need for protective eye wear.
This symbol indicates the need for protective gloves.
This symbol indicates the need for safety footwear.
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This symbol indicates the need for protective clothing.
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 the marked item can be hot and should not be touched without care.
This symbol indicates that a risk of fire is present.
This symbol identifies the presence of a strong corrosive or other hazardous substance and a risk of
chemical harm. 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 the presence of a harmful irritant.
This symbol indicates that the marked item should not be opened during operation.
This symbol indicates that the marked item should not be touched.
This symbol indicates a potential pinch hazard.
This symbol indicates that the object is heavy.
This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and
indicates that care must be taken to prevent damage with the equipment.
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This symbol indicates that the marked item requires a protective earth connection. If the instrument is
not supplied with a ground plug on a cord, make the protective earth connection to the protective
conductor terminal.
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.
4.1.3 Icons used in illustrations
Manufacturer
supplied parts
User supplied
parts Look Do steps in reverse order Use fingers only Use two people
4.1.4 Chemical and biological safety
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.
4.1.5 Ozone precautions
CAUTION
Ozone inhalation hazard. This instrument produces ozone that is contained within the equipment,
specifically within the internal plumbing. The ozone could be released under fault conditions.
It is recommended to plumb the exhaust gas port to a fume hood or to the building exterior in
accordance with local, regional and national requirements.
Exposure to even low concentrations of ozone can damage delicate nasal, bronchial and pulmonary
membrane. In sufficient concentration, ozone can cause headaches, coughing, eye, nose and throat
irritation. Immediately, move the victim to uncontaminated air and seek first aid.
The type and harshness of symptoms are based on the concentration and exposure time (n). Ozone
poisoning includes one or more of the symptoms that follow.
• Irritation or burning of the eyes, nose or throat
• Lassitude
• Frontal headache
• Sensation of sub-sternal pressure
• Constriction or oppression
• Acid taste in mouth
• Asthma
In case of more severe ozone poisoning, the symptoms can include dyspnea, cough, choking
sensation, tachycardia, vertigo, lowering of blood pressure, cramping, chest pain, and generalized
body pain. Ozone can cause a pulmonary oedema one or more hours after exposure.
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4.2 Intended use
The Hach EZ-series analyzers are intended for use by individuals who measure multiple water
quality parameters in samples from industrial and environmental applications. The Hach EZ-series
analyzers do not treat or alter water and are not used to control procedures.
4.3 Product overview
The Hach EZ-series analyzers are on-line analyzers that measure one or multiple parameters in
water samples from industrial and environmental applications. Refer to Figure 1.
The sample line moves the sample into the analyzer. The analyzer uses pumps, valves and syringes
to move the sample and reagents to the measuring cell on the analytics panel. When the
measurement cycle is complete, the analyzer discards the sample through the drain line. The
analysis results shows on the display of the data processing panel. The data processing panel
controls and configures the analyzer. The data processing panel saves the analyzer data (i.e.,
trends , alarms, analysis results and data log files).
A set of reagent bottles is supplied with the analyzer to hold the reagent and solutions. Sample
preconditioning could be necessary based on the analysis technology. Optional sample
preconditioning panels are available for the sample line.
There are different analyzer series available with different measurement technology and measured
parameters:
• EZ 1000 series—On-line colorimetric analyzers for general water analysis (chemical parameters)
and nutrient analysis (i.e., nitrate, phosphate, ammonia)
• EZ 2000 series—On-line colorimetric analyzers with digestion for general water analysis (chemical
parameters) and nutrient analysis (i.e., nitrate, phosphate, ammonia)
• EZ 3000 series—On-line ion-selective (ISE) analyzers for general water analysis
• EZ 4000 series—On-line titrimetric analyzers for general water analysis (chemical parameters)
• EZ 5000 series—Multiparametric on-line titrimetric analyzers for general water analysis (chemical
parameters)
• EZ 6000 series—On-line voltammetry analyzers for heavy/trace metal analysis (e.g., Ag, As, Cr,
Hg, Pb, Se)
• EZ 7x00 serires—On-line analyzers for industrial applications (e.g, COD, TOC, Total Nitrogen,
Total Phosphorus, volatile fatty acids FOS/TAC, influent toxicity, international bitternes units,
Adenosine Triphospahte)
The EZ-analyzer has different options such as: Sample detection, level detection for reagent bottles,
remote Start/Stop, auto-validation, auto-calibration, auto-cleaning, RS232 and Modbus.
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Figure 1 Product overview
1 Electrical connectors and
plumbing access ports
4 USB port for data transfer 7 Door lock for electrical
compartment
2 EZ analyzer 5 Keypad and display 8 Analysis panel cover
3 M20 cable gland for power cord 6 Analyzer door
4.4 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.
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Figure 2 Product compoments
1 EZ analyzer 4 Lock washer, M8 (4x) 7 Tube fittings and ferrules4
2 Mounting brackets (2x) 5 Flat washer, M8 (4x) 8 Key for electrical compartment
3 Hex bolt, M8 × 16 (4x) 6 Reagent and solution bottles49 Power cord
Section 5 Installation
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
5.1 Installation guidelines
WARNING
Fire hazard. The user is responsible to make sure that sufficient precautions are taken when the
equipment is used with methods that use flammable liquids. Make sure to obey correct user
precautions and safety protocols. This includes, but is not limited to, spill and leak controls, proper
ventilation, no unattended use, and that the instrument is never left unattended while power is
applied.
CAUTION
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.
4Quantity and type is based on the supplied analyzer.
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CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
• Install the analyzer indoors, in a non-hazardous environment.
• Install the analyzer in an environment that is protected from corrosive fluids.
• Install the analyzer in a clean, dry, well-ventilated and temperature-controlled location.
• Install the analyzer as near to the sampling point as possible.
• Do not install the analyzer in direct sunlight or near a heat source.
• Make sure that there is sufficient clearance to make plumbing and electrical connections.
• Make sure to leave sufficient space in front of the analyzer to open the analyzer door. Refer to
Analyzer dimensions.
• Make sure that the ambient conditions are within operating specifications. Refer to Specifications
on page 3.
Although the analyzer is not designed for use with flammable samples, some EZ-analyzers use
flammable reagents. If the analyzer uses flammable reagents, make sure to obey the safety
precautions that follow:
• Keep the analyzer away from heat, sparks and open flame.
• Do not eat, drink or smoke near the analyzer.
• Use a local exhaust ventilation system.
• Use spark and explosion-proof appliances and lighting system.
• Prevent electrostatic discharges. Refer to Electrostatic discharge (ESD) considerations
on page 14.
• Fully clean and dry the instrument before use.
• Wash hands before breaks and at the end of the working period.
• Remove contaminated clothing. Wash clothing before reuse.
• These fluids must be handled in accordance with local regulatory agency requirements on
permissible exposure limits.
5.2 Mechanical installation
5.2.1 Attach the instrument to a wall
WARNING
Personal injury hazard. Make sure that the wall mounting is able to hold 4 times the weight of the
equipment.
WARNING
Personal injury hazard. Instruments or components are heavy. Use assistance to install or move.
WARNING
Personal injury hazard. The object is heavy. Make sure that the instrument is securely attached to a
wall, table or floor for a safe operation.
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Attach the instrument upright and level on a flat, vertical wall surface. Install the instrument in a
location and position where the user can easily disconnect the instrument from the power source.
Refer to the illustrated steps that follow. Mounting hardware is supplied by the user. Make sure that
the fastening has sufficient load bearing capacity (approximately 160 kg, 353 lb). The wall plugs must
be selected and approved to suit the properties of the wall.
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5.2.2 Open the analyzer door
Use the supplied key to unlock the two locks on the side of the analyzer. Open the analyzer door to
get access to the wiring connections and plumbing. Refer to Figure 3. Make sure to close the door
before operation to maintain the enclosure and safety rating.
Figure 3 Open the analyzer door
5.3 Electrical installation
D A N G E R
Electrocution hazard. Always remove power to the instrument before making electrical connections.
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5.3.1 Electrostatic discharge (ESD) considerations
N O T I C E
Potential Instrument Damage. Delicate internal electronic components can be damaged by static
electricity, resulting in degraded performance or eventual failure.
Refer to the steps in this procedure to prevent ESD damage to the instrument:
• Touch an earth-grounded metal surface such as the chassis of an instrument, a metal conduit or
pipe to discharge static electricity from the body.
• Avoid excessive movement. Transport static-sensitive components in anti-static containers or
packages.
• Wear a wrist strap connected by a wire to earth ground.
• Work in a static-safe area with anti-static floor pads and work bench pads.
5.3.2 Electrical access
Connect external cables to the communications, relay or input/output module terminals through the
electrical access ports. Refer to Figure 4. Refer to Specifications on page 3 for wire gauge
requirements. Keep the plugs in the electrical access ports that are not used.
Open the door to get access to the electrical connections. Refer to Figure 5 for the electrical
overview.
The power switch is a circuit breaker that automatically cuts off the main power supply from the AC
power line if an overcurrent (short circuit for example) or overvoltage condition occurs.
Figure 4 Electrical access ports
1 M20 cable glands 3 M25 cable glands
2 M16 cable glands 4 Plug
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Figure 5 Electrical overview
1 Ethernet connection 4 Power receptacle 7 Power contacts (digital outputs)
2 Battery cover 5 Fuses 8 Free contacts (digital output)
3 Power switch 6 Digital inputs 9 Analog outputs
5.3.3 Connect to AC power
D A N G E R
Make sure that the supplied cord meets the applicable country code requirements.
Connect to AC power with the supplied AC power cord. Make sure that a circuit breaker with
sufficient electrical current capacity is installed in the power line.
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Installation with a power cord
• Connect the power cord to an electrical box with applicable rated switch and protective earth
ground.
• Connected through a cable gland (strain relief) that holds the power cable securely and seals the
enclosure when tightened.
• Connect equipment in accordance with local, state or national electrical codes.
Refer to the power requirements in Specifications on page 3. The analyzer must have a dedicated,
unswitched circuit. Do not connect the analyzer to a circuit that supplies power to other equipment,
so power is not accidentally removed from the analyzer. Connect the AC power as follows:
1. Open the analyzer. Refer to Open the analyzer door on page 13.
2. Put the power cord through the strain relief fittng for the AC power cord. Refer to the illustrated
steps that follow and Table 4.
3. Tighten the strain relief fitting.
4. Close the analyzer.
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Table 4 Wiring information—AC power
Terminal Description Cable
L Hot/Line (L) 1
N Neutral (N) 2
Protective earth ground (PE) Green with yellow stripe
5.3.4 Connect the signal and control cables
Connect external devices to the signal and control terminals (e.g., sample level detection). The
analyzer has two analog outputs, five relay contacts, four digital outputs and four digital inputs. Refer
to Figure 5 on page 15 and Table 5.
Table 5 Wiring—Signal terminals
Pin Description
AO1–AO25Analog outputs: 4–20 mA, active current, maximum load 500 Ω
FCT1–FCT5 Free contacts (digital output): Relay output, contact loading maximum 24 VDC, 0.5 A
PCT1–PCT4 Power contacts (digital outputs): 24 VDC, 0.5 A output
INP1–INP4 Digital inputs: 24 VDC, trigger with external potential free contact
5.3.5 Modbus connection (optional)
Refer to the expanded user manual on the manufacturer's website.
5Optional modules are available to add a maximum of 10 analog outputs to the analyzer.
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5.4 Plumbing
5.4.1 Sample line guidelines
CAUTION
Fire hazard. This product is not designed for use with flammable samples.
Select a good, representative sampling point for the best instrument performance. The sample must
be representative of the entire system.
• Make sure that the sample flow is higher than the flow to the analyzer.
• Make sure that the sample line is at atmospheric pressure if the analyzer uses a peristaltic pump
to move the sample into the analysis vessel.
• Make sure that the sample line collects sample from a small overflow vessel near to the analyzer.
The sample in the overflow vessel must be continuously refreshed. If the size of solids in the sample
is too high, sample filtration is also recommended.
5.4.2 Drain line guidelines
WARNING
Fire hazard. The user is responsible to make sure that sufficient precautions are taken when the
equipment is used with methods that use flammable liquids. Make sure to obey correct user
precautions and safety protocols. This includes, but is not limited to, spill and leak controls, proper
ventilation, no unattended use, and that the instrument is never left unattended while power is
applied.
CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
N O T I C E
Do not connect the drain lines to other lines because backpressure or damage to the analyzer can occur. Make
sure that the drain lines are open to air.
N O T I C E
To prevent backpressure and damage to the analyzer, make sure that the analyzer is higher than the facility
drain(s) used and that the drain line has a constant downward slope. Install the drain lines with a 2.54 cm (1 inch)
or more vertical decrease for each 0.3 m (1 ft) length of tubing.
The analyzer uses the drain line to release the sample and reagents after analysis. Correct
installation of the drain lines is important to make sure that all of the liquid is removed from the
instrument. Incorrect installation can cause liquid to go back into the instrument and cause damage.
A floor or sink drain is sufficient for the drain line. The recommended external diameter for the drain
tube is 32 mm.
• Make the drain lines as short as possible.
• Make sure that the drain is lower than the analyzer.
• Make sure that the drain lines have a constant slope down.
• Make sure that the drain lines do not have sharp bends and are not pinched.
• Make sure that the drain lines are open to air and are at zero pressure.
• Make sure that the drain lines are closed to the ambient of the installation room.
• Do not block or submerge the drain line.
A water connection is also recommended so that the drain sink and drain tubing are regularly flushed
with clean water to prevent blockage by crystallization.
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If the analyzer uses flammable reagents, make sure to obey the safety precautions that follow:
• Do not plumb the drain line to a floor drain.
• Dispose of waste in accordance with local, state and national environmental regulations.
5.4.3 Vent line guidelines
WARNING
Fire hazard. The user is responsible to make sure that sufficient precautions are taken when the
equipment is used with methods that use flammable liquids. Make sure to obey correct user
precautions and safety protocols. This includes, but is not limited to, spill and leak controls, proper
ventilation, no unattended use, and that the instrument is never left unattended while power is
applied.
CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
N O T I C E
Do not connect the vent line (exhaust gas port) to other lines because backpressure or damage to the analyzer
can occur. Make sure that the vent line is open to air at the building exterior.
N O T I C E
To prevent backpressure and damage to the analyzer, make sure that the analyzer is higher than the facility
vent(s) used and that the vent line has a constant downward slope. Install the vent line with a 2.54 cm (1 inch) or
more vertical decrease for each 0.3 m (1 ft) length of tubing.
The analyzer uses the vent line to release exhaust gases during analysis. Correct installation of the
vent line is important to make sure that all of the gas is removed from the analyzer. Incorrect
installation can cause gas to go back into the analyzer and cause damage. The recommended
external diameter for the header tube of the vent line is 32 mm.
• Make the vent line as short as possible.
• Make sure that the vent line has a constant slope down.
• Make sure that the vent line does not have a sharp bend and is not pinched.
• Make sure that the vent line is closed to the ambient of the installation room and is at zero
pressure.
• Do not block or submerge the vent line.
If the analyzer uses flammable reagents, make sure to obey the safety precautions that follow:
• Do not plumb the vent line to a floor drain.
• Dispose of waste in accordance with local, state and national environmental regulations.
If the analyzer uses ozone, make sure to obey the safety precautions that follow:
• Make sure to plumb the exhaust gas port to the building exterior in accordance with local, regional
and national requirements.
5.4.4 Plumb the analyzer
CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Reagents, standards and cleaning solutions are supplied by the user. The tubing is factory installed.
Read the label on each tube to identify the correct plumbing connection. Do the steps that follow to
install all of the necessary fluid connections.
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1. Use 1/8-in. or 1/4-in. OD tubing (PFA based on the application) to connect the sample line. If a
selection pinch valve is used, make sure to pull the tubes into the pinch valve. Refer to Figure 6,
number 6.
2. Use 1/8 in. OD tubing to connect the rinse line to the rinse selection valve. The rinse solution is
de-mineralized water.
Note: There are pre-installed tubes for the rinse line, reagents, validation and drain connections at the fluid
connections port on the bottom of the analysis panel. Refer to Figure 6, number 2.
3. Use 1/8-in. OD tubing to connect the reagents and validation solutions line. Connect the reagent
line to the applicable bottle. Refer to Refer to Figure 6 number 2 and Install the bottles
on page 21.
4. Use 1/4-in. OD tubing to connect the drain line. Refer to Figure 6 number 2 and Drain line
guidelines on page 18.
5. Use 1/4-in. OD tubing to connect the instrument air feed. Use the instrument air is used to purge
the analyzer and prevent corrosion caused by gases (e.g., chlorine gas) from outside the
analyzer. The instrument air is also used to operate the external sample valves on the
preconditioning panel (if installed). Refer to Figure 6, number 1.
6. Use 3/8-in. OD tubing to connect the overflow tube. The overflow tube drains the analysis
compartment if there are leakage of sample fluids or reagent fluids in the compartment. Use the
same guidelines as the drain line to install the overflow tube. Refer to Figure 6, number 3.
7. Push on the pinch valve to manually open the pinch valve and install the tubing. Refer to
Figure 6, number 4.
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