horiba HU-200SS SS-90 User manual

MLSS meter
HU-200SS SS-90
Instruction Manual
CODE:GZ0000230907

October, 2010 © 2010 HORIBA Advanced Techno, CO., Ltd.
Preface
This manual describes the operation of the MLSS meter, HU-200SS SS-90.
Be sure to read this manual before using the product to ensure proper and safe operation of
the instrument. Also safely store the manual so it is readily available whenever necessary.
Product specifications and appearance, as well as the contents of this manual are subject to
change without notice.
Warranty and Responsibility
HORIBA Advanced Techno, CO., Ltd. warrants that the Product shall be free from defects in
material and workmanship and agrees to repair or replace free of charge, at option of HORIBA
Advanced Techno, CO., Ltd., any malfunctioned or damaged Product attributable to
responsibility of HORIBA Advanced Techno, CO., Ltd. for a period of one (1) year from the
delivery unless otherwise agreed with a written agreement. In any one of the following cases,
none of the warranties set forth herein shall be extended;
zAny malfunction or damage attributable to improper operation
zAny malfunction attributable to repair or modification by any person not authorized by
HORIBA Advanced Techno, CO., Ltd.
zAny malfunction or damage attributable to the use in an environment not specified in this
manual
zAny malfunction or damage attributable to violation of the instructions in this manual or
operations in the manner not specified in this manual
zAny malfunction or damage attributable to any cause or causes beyond the reasonable
control of HORIBA Advanced Techno, CO., Ltd. such as natural disasters
zAny deterioration in appearance attributable to corrosion, rust, and so on
zReplacement of consumables
HORIBA ADVANCED TECHNO, CO., LTD. SHALL NOT BE LIABLE FOR ANY DAMAGES
RESULTING FROM ANY MALFUNCTIONS OF THE PRODUCT, ANY ERASURE OF DATA,
OR ANY OTHER USES OF THE PRODUCT.
Trademarks
Generally, company names and brand names are either registered trademarks or trademarks
of the respective companies.

Regulations
Conformable Directive
This equipment conforms to the following directives and standards:
JInstallation Environment
This product is designed for the following environment.
zInstallation Categories II
zPollution degree 2
FCC Rules
Any changes or modifications not expressly approved by the party responsible for compliance
shall void the user's authority to operate the equipment.
JWARNING
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 his own expense.
Directives: the EMC Directive 2004/108/EC
the Low Voltage Directive 2006/95/EC
Standards: [the EMC Directive]
EN61326-1: 2006 Class A, industry
[the Low Voltage Directive] EN61010-1: 2001
Note
If the sensor cable, transmission cable, or relay cable is extended to 30 m or more,
the surge test in the EMC Directive for CE Marking is not applicable.

For Your Safety
Hazard Classification and Warning Symbols
Warning messages are described in the following manner. Read the messages and follow the
instructions carefully.
QHazard classification
QWarning symbols
This indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury. This signal word is to be limited to the most
extreme situations.
This indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
This indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury. It may also be used to alert against
unsafe practices.
Without safety alert indication of hazardous situation which, if not avoided,
could result in property damage.
Description of what should be done, or what should be followed
Description of what should never be done, or what is prohibited

Safety Precautions
This section provides precautions to enable you to use the product safely and correctly and to
prevent injury and damage. The terms of DANGER, WARNING, and CAUTION indicate the
degree of imminency and hazardous situation. Read the precautions carefully as it contains
important safety messages.
WARNING
To connect any load exceeding the contact capacity or any induction load (e.g., a motor or a pump),
be sure to use a power relay exceeding the load rating.
If there is a possibility of a lightning strike, install an arrester on the output side of the converter and on
the side of receiving instruments.
Be sure to ground the grounding terminal (class D grounding).
Electric shock hazard
Be sure to check that no power is supplied before starting work.
The air contained in the covered biological processing tank is of a low oxygen concentration, so there
is the danger of suffocation.
CAUTION
If the instrument's power source is OFF, the C-NC contact is short-circuited. Therefore, be careful
about the connection of any load.
If there is corrosive gas in the installation environment, send clean instrumentation air from the air
purge inlet to the device.
Since the operation of the device at any voltage outside the rated range can cause damage to the
unit, confirm the power supply voltage.
Do not turn the sensor head (tip part). Otherwise, the detector may be damaged.
Do not drop anything in the biological processing tank, such as a MLSS detector, tools, and
holdbacks. Perform your work carefully.
The sensor head is not provided with a protective cover against drop impact.
Handle the sensor head with care when taking it out in air.

Product Handling Information
Operational Precautions
Use of the equipment in a manner not specified by the manufacturer may impair the protection
provided by the equipment. And it may also reduce equipment performance.
Therefore, exercise the following precautions:
zDo not press any operation key with the tip of your fingernail or with any pointed object.
zDo not use organic solvents or the like.
Disposal of the Product
When disposing of the product, follow the related laws and/or regulations of your country for
disposal of the product.
Manual Information
Description in This Manual
Note
This interprets the necessary points for correct operation and notifies the important points for
handling the unit.
Reference
This indicates the part of where to refer the information.
Tip
This indicates reference information.
Term Definition
This document uses the following terms as defined:
Term Definition
Hold down Maintain pressing a key until the indicator turns ON or the display changes.
Flash Quickly flash several times, indicating that the setting has been established.

Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview of equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description of each part (converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description of operation keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Status display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description of operation modes and menu items . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing the HU-200SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Procedures for connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting the power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting the contact output terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting the transmission output terminals . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting the contact input terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting the communication terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connecting the detector cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Detector installation method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Preparation for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Starting operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Meas mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Setup menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Cal menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
User check menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Contact output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Output conditions for various kinds of output . . . . . . . . . . . . . . . . . . . . . . 39
Cleaning output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Information for accurate measurements. . . . . . . . . . . . . . . . . . . . 41

Zero calibration Cal mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Selecting the sample properties-specific working curves . . . . . . . . . . . . 42
Checking the zero calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Span calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Maintenance of the detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Troubles with measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Measurements exceeding the measurable range. . . . . . . . . . . . . . . . . . 48
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Reference data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Measuring principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Disposal method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table of MLSS meter's on-screen display . . . . . . . . . . . . . . . . . . . . . . . 57

Overview
1
Overview
Overview of equipment
Thank you very much for purchasing our Industrial-Use HU-200SS SS-90 MLSS Meter.
This Industrial-Use MLSS Meter consists of a HU-200SS converter and a SS-90 immersion
type detector.
With this MLSS Meter, a wide range (from 0 mg/L to 20000 mg/L) of SS contents can be
measured with excellent reproducibility using the near-infrared-radiation transmission method.
Any of the working curves of MLSS, Clay (inorganic mud) and Kaolin may be used as
standard substances of SS.
If “MLSS” is selected for an activated sludge treatment tank, “Clay” for the precipitation
treatment of construction sludge, or “Kaolin” for white mud, a concentration can be obtained
closer to an analyzed value. However, Kaolin has transmission properties that are different
from those of other components and a signal stops changing if the concentration is too high.
So measurement is limited up to 10000 mg/L.
The outputs from the converter are a concentration signal of 4 mA to 20 mA DC, contact
output of two channels, and FAIL contact output. The MLSS detector is connected by five
wires; two for communication, two for the power, and one for the ground potential. Cables may
be extended up to a length of 50 m. The sensor head (tip part) of the SS-90 detector is made
of PFA resin to which dirt does not adhere easily. A light source and detectors are attached in
a face-to-face position to the two sticks of the sensor head. The decay of transmitted light in
the gap of about 7 mm is converted to a concentration. The amount of light from a light source
is monitored by an optical detector for a reference purpose, and variations in the amount of
light are corrected by computing a ratio to a transmitted light signal. A near infrared radiation
LED light source blinks at approx. 10 Hz, and the influence of ambient light is canceled by
taking out the signal of the difference between when the light is ON and OFF.
Since the span sensitivity of the transmission method remains stable, sensitivity correction
over elapsed time is not required. In general, only zero calibration is performed at regular
intervals.
For MLSS measurement, the MLSS detector is attached to an immersion type holder or is
dropped in a pipe. A cleaner for spraying water or air on the holders is available as option. If a
cleaner is installed, the power source that can directly drive solenoid valves, etc. used for
cleaning is output from the converter.
The self-diagnosis capability checks the status of this equipment continuously and outputs an
error signal when any abnormality is found.
QFeatures of the Converter
zRugged aluminum die cast
zWide wiring space, and a terminal block for which the drop-off of screws is prevented.
zOutdoor installation type (equivalent to IP65; splash-proof construction)
zEasy-to-view display (150% zoom as compared with the conventional type)
zFront-face keys for all key operations
zEnhanced self-diagnosis capabilities
zProgrammable transmission output range
zCalibration history memory
zMeasurement by calling up detector-specific data without machine difference.
zCleaning output (active voltage)

Overview
2
QFeatures of the detector
zBuilt-in CPU and ADC
zData communication with the converter
zNear-infrared radiation transmission method with stable sensitivity
zPFA sensor head to which dirt does not adhere easily
z3 types of built-in working curves
zLong-life LED light sources, and the elimination of ambient light by blinking
zLight source monitoring capability provides high stability
Content
QItems included
A SS-90 Detector is packed separately.
Components included with a detector
zDetector (adaptor and 10 m cable)
zOperational check board
zZero calibration bottle
Components included for installation and sampling (optional)
zDrop-type holder
zImmersion-type holder
zCleaning device for drop-type holders
zSolenoid valve
Name Illustration Quantity Remarks
Converter 1 set With bracket
With cover
U-bolt 2 sets
U-bolt: 2
M8 nut: 4
Spring washer: 4
Flat washer: 4
Instruction
manual 1 copy This document
Instruction