Hach AF7000 Basic User Manual

DOC023.97.80281
AF7000 SCM
09/2014, Edition 4
Basic User Manual
Table of Contents
Specifications on page 3 Startup on page 15
Installation on page 7 Maintenance on page 16
User interface on page 13
Additional information
Additional information is available on the manufacturer's website.
Specifications
Specifications are subject to change without notice.
General specifications
Specification Details
Dimensions (W x H x D) 320 x 750 x 250 mm (12.6 x 29.5 x 10 in.)
Sample contact components Stainless Steel, UHMW, Epoxy
Weight 21.5 kg (47.4 lb) standard option
Pollution degree 2
Installation category II
Protection class I
Power requirement options 230 VAC, 50 Hz at 1.6 A ; 115 VAC, 50 Hz at 3.2 A
120 VAC 60 Hz at 3.2 A
Operating temperature 0 to 50 °C (32 to 122 °F)
Maximum relative humidity 95% for temperatures up to 50 °C (122 °F)
Storage temperature –20 to 70 °C (–4 to 158 °F) 95% relative humidity, non-condensing
Speed of response 1 second to 1 minute, adjustable average
Sample flow rate > 1 L/min, 2–4 L/min recommended
Sample temperature 7 to 35 °C (45 to 95 °F)
Plumbing connection ½-in. BSP
Communications RS485 electrically isolated; data rate: 1200 to 9600 baud
Outputs (optional) 4–20 mA card: Two 4–20 mA outputs; maximum load 500 Ω, electrically isolated
Alarm relay card: Two relays; SPST, NO and NC terminals, maximum 16 VAC (35 VDC), 5 A (resistive loads only)
Digital inputs (optional) Two dual digital; optically isolated; switch input or 5 to 24 V input
Certifications CE, cETLus (UL and CSA 61010-1 safety standards)
Warranty 1 year
English 3
Automatic flush specifications
Specification Details
Water connection ½-in. BSP
Water pressure 10 bar (145 psi) maximum; 1–5 bar (14.5–72.5 psi) recommended
Auto flush options Interval: 1 minute to 48 hours
Duration: 1 second to 4 minutes
Reading hold: 0 seconds to 4 minutes
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.
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.
4
English
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 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 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 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 biohazard.
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.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device.
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.
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.
Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
English
5
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.
C A U T I O N
Fire hazard. This product is not designed for use with flammable liquids.
This instrument measures an electrical current (streaming current) from suspended particles in the sample as the sample flows through the instrument. This current is typically used to monitor the amount of coagulant that is added to water treatment systems. Good coagulation occurs when the surface charges on the particles are neutralized by the coagulant. An optional PID controller card can automatically adjust the coagulant dose to keep the dosage at the optimum level.
Applications include drinking water, wastewater and industrial waters (e.g. pulp and paper). The instrument can also be used to monitor changes in the source water. A typical setup is shown in
Figure 1.
6
English
Figure 1 Instrument overview
1 Wiring access cover 6 Sample chamber 11 Grit filter
2 Cable access cover 7 Sample outlet 12 Manual isolation valve for inlet
3 Head height indicator pipe 8 Sensor 13 Motor
4 Directional valve 9 Clean water in (for optional
flush)
14 Reset switch for motor
5 Overflow port (2x) 10 Optional flush valve 15 Gearbox
Installation
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
English 7
Loading...
+ 15 hidden pages