Hach Sigma 950 Quick manual
DOC026.97.80408
Sigma 950
05/2014, Edition 3
Basic User Manual
Manuel d'utilisation de base
Manual básico del usuario
Manual Básico do Usuário
English..............................................................................................................................3
Français.........................................................................................................................26
Español..........................................................................................................................51
Português......................................................................................................................75
2
Table of contents
Specifications on page 3 User interface on page 18
General information on page 4 Operation on page 20
Installation on page 8 Maintenance on page 24
Additional information
Additional information is available on the manufacturer's website.
Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions (H x W x D) 34.3 x 25.4 x 24.1 cm (13.5 x 10.0 x 9.5 in.)
Weight 5 kg (11 lb) without power source
Enclosure NEMA 4X, 6 (front cover open or closed); ABS, UV light resistant
Pollution degree 2
Installation category I
Protection class III
Operating temperature –10 to 65.5 °C (14 to 150 °F), 95% relative humidity, non-condensing
Storage temperature –40 to 80 °C (–40 to 176 °F)
Power requirements and
options
12 VDC supplied from 7 A-Hr rechargeable gel lead-acid battery, 4 A-Hr rechargeable
Ni-Cad battery or non-rechargeable alkaline lantern batteries (2 x 6 VDC)
15 VDC supplied from 100–120 VAC input power supply or 230 VAC input power
supply
Fuses F1 on CPU board: 2 A, 250 VAC, fast-blow, 5 x 20 mm
F1 and F2 on base board: 4 A, 125 VAC, slow-blow, 5 x 20 mm
F3 on base board: 1 A, 250 VAC, fast-blow, 5 x 20 mm
Display Liquid crystal display (LCD) with backlight; auto-off when not in use for battery
operation; 8 line x 40 character in text mode, 60 x 240 pixels in graphics mode
Totalizers 8-digit resettable and 8-digit non-resettable software
Time base accuracy ±0.007% per day
Measurement modes Flumes: Parshall, Palmer Bowlus, Leopold-Lagco, H, HL, HS, trapezoidal
Weirs: V-notch (22.5 to 120 degrees), compound V-notch, contracted/non-contracted
rectangular, ThelMar, Cipolletti
Manning Equation: round, U, rectangular and trapezoidal channels
Flow Nozzle: california pipe
Head versus Flow: custom programmable curve of up to 99 points
Level only: inches, feet, centimeters, meters
Area velocity: level-area table, circular pipe, U-shaped channel, trapezoidal channel,
rectangular channel
Power equation: Q = K1Hn1 + K2Hn2
English 3
Specification Details
Data logging "Smart" dynamic memory allocation automatically partitions memory to supply the
maximum logging time.
Memory mode: slate or wrap-around
128 kB of RAM (standard): 17,280 readings maximum; 512 kB of RAM (optional):
115,630 readings maximum
Daily statistics: 32 days kept maximum
Recording interval (configurable)
Sampler output 12–17 VDC pulse, 100 mA maximum at 500 ms duration
Communications RS232 - up to 19,200 baud
Modem - 14,400 bps., V.32 bis. V.42, MNP2-4 error correction; V.42 bis MNP5 data
compression
SCADA - Modbus communication protocol (standard) through RS232 or optional
modem
4–20 mA outputs (maximum of 2), isolation voltage rating:
• Between instrument and either 4–20 mA output: 2500 VAC
• Between the two 4–20 mA outputs: 1500 VAC
• Maximum resistive load: 600 Ω
• Output voltage: 24 VDC, no load
Alarm relays (maximum of 4), form C relays, rated for 10 A at 120 VAC or 5 A at
240 VAC resistive load minimum; normally open and normally closed contacts
available
Certification CE mark - some 950 models (such as 3248, 3522 and 2672). Refer to Installation
requirements for CE marked instruments on page 8.
CE mark - 230 V AC-DC power converter and cETLus 115 V AC-DC power converter
(UL/CSA 61010-1 Safety Standard)
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.
4 English
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.
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.
This symbol indicates that a risk of electrical shock and/or electrocution exists.
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.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device.
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.
Confined space precautions
D A N G E R
Explosion hazard. Training in pre-entry testing, ventilation, entry procedures, evacuation/rescue
procedures and safety work practices is necessary before entering confined spaces.
The information that follows is supplied to help users understand the dangers and risks that are
associated with entry into confined spaces.
On April 15, 1993, OSHA's final ruling on CFR 1910.146, Permit Required Confined Spaces, became
law. This standard directly affects more than 250,000 industrial sites in the United States and was
created to protect the health and safety of workers in confined spaces.
Definition of a confined space:
A confined space is any location or enclosure that has (or has the immediate potential for) one or
more of the following conditions:
English 5
• An atmosphere with an oxygen concentration that is less than 19.5% or more than 23.5% and/or a
hydrogen sulfide (H2S) concentration that is more than 10 ppm.
• An atmosphere that can be flammable or explosive due to gases, vapors, mists, dusts or fibers.
• Toxic materials which upon contact or inhalation can cause injury, impairment of health or death.
Confined spaces are not designed for human occupancy. Confined spaces have a restricted entry
and contain known or potential hazards. Examples of confined spaces include manholes, stacks,
pipes, vats, switch vaults and other similar locations.
Standard safety procedures must always be obeyed before entry into confined spaces and/or
locations where hazardous gases, vapors, mists, dusts or fibers can be present. Before entry into a
confined space, find and read all procedures that are related to confined space entry.
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.
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.
FCC requirements
WARNING
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
The Federal Communications Commission (FCC) has made rules which let this device be directly
connected to the telephone network. Standardized jacks are used for these connections. This
equipment should not be used on party lines or coin lines.
6 English
If this device is not operating correctly, it can cause damage to the telephone network. Disconnect
this device until the source of the problem is identified and the repair is completed. If this is not done,
the telephone company may temporarily disconnect service.
The telephone company can make changes in its technical operations and procedure. If such
changes affect the compatibility or use of this device, the telephone company must give sufficient
notice of the changes.
If the telephone company asks for information on the equipment that is connected to their telephone
lines, supply them with:
• Telephone number to which the unit is connected
• Ringer equivalence number* (1.4B)
• USOC jack required (RJ11C)
• FCC registration number*
The ringer equivalence number (REN) is used to identify how many devices can be connected to the
telephone line to which the unit is connected. In most areas, the sum of the RENs of all devices on
any one line should not be more than five. If too many devices are attached, the devices may not
receive calls correctly.
Equipment attachment limitations notice:
The Canadian Industry Canada label identifies certified equipment. This certification identifies that
the equipment is in conformance with specific telecommunications network protective, operational
and safety requirements. The Canadian Industry Canada label does not identify that the equipment
will operate to the satisfaction of the user.
Before this equipment is installed, get the permission of the local telecommunications company to
connect it to the facilities. Use an allowed method of connection. If allowed, increase the length of the
inside wiring associated with a single-line individual service as necessary with a certified connector
assembly (telephone extension cord). Be aware that compliance with these conditions may not
prevent service degradation in some situations.
Repairs to certified equipment should be done by an authorized Canadian maintenance facility
identified by the supplier. Repairs or equipment changes made by the user or equipment
malfunctions can give the telecommunications company cause to ask the user to disconnect the
equipment. For the protection of the user, make sure that the electrical ground connections of the
power utility, telephone lines and internal metallic water pipe system, if present, are connected
together. This precaution can be particularly important in rural areas.
The load number (LN) given to each terminal device identifies the percentage of the total load that
can be connected to a telephone loop that is used by the device. If a higher percentage of the total
load is applied, damage to the telephone loop can occur. The termination on a loop can be any
combination of devices whose total load numbers are not more than 100.
Product overview
This instrument is a portable, waterproof flow meter that is used with an attached sensor to measure
and record flow in open channels, full pipes and surcharged lines. This instrument can be used to
control a wastewater sampler.
The instrument enclosure is waterproof and corrosive gas resistant even with the front cover open.
The front cover has two lockable latches to prevent vandalism and unauthorized use of the keypad. A
software lock can also be enabled, which locks the keypad.
Typically, this instrument is used with a level sensor to measure flow when there is a primary
measuring device (e.g., flume, weir or pipe) that has a known level-to-flow relationship. The level
sensor measures the level of liquid in a channel that adds to the flow (referred to as the “head”).
Then, the instrument calculates the flow rate based on the head-to-flow relationship of the primary
device. In addition, this instrument can be used with a velocity sensor. The velocity sensor measures
the average velocity of the flow stream with a Doppler sensor that is under water. Then, the
instrument calculates the flow based on the current depth and the Continuity Equation: Wetted Area
× Velocity = Flow.
*Recorded on the device label
English 7
The communication features of this instrument include a standard RS232 port and optional internal
modem. Use the RS232 port for remote data transfer, remote programming and to update internal
software using flash memory (RS232 only). The Modbus ASCII protocol is used for SCADA
communication through the RS232 port.
Use InSight data management software to:
• Transmit the data log from the instrument to a PC
• Remotely configure the instrument
• Do other data manipulation using the RS232 port or the optional internal modem
Installation
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Installation requirements for CE marked instruments
Only the flow meter models, part numbers and options in Table 1 are approved for use in the
European Union (EU) according to the CE mark of the manufacturer.
Instruments with a CE mark have use and installation requirements that are subject to the European
Union’s Notified Body use limitations that follow.
• The Sigma 950 flow meter must be operated underground in sewers, drain pipes and similar
underground locations.
• The Sigma 950 flow meter must be connected to an AC mains source that is only used for
underground service. The AC mains power service cannot be used for residential locations.
If the Sigma 950 flow meter is operated in locations where there are high levels of RF energy or large
electrical transients, electromagnetic interference can cause performance-related problems.
However, these conditions are not typical in underground in sewers, drain pipes and similar
underground locations.
Table 1 Items approved for use in the European Union
Description Item no.
950 combination flow meter with both AV and bubbler sensors 3248
950 flow meter with AV sensors only 3522
950 flow meter with bubbler sensors only 2672
AV sensor options (xx-xxx = depth range, fill option and cable length) 770xx-xxx
Bubbler sensor options (xxx = cable lengths) 88007-xxx
pH sensors with 7.6 m (25 ft) cable length 3328
pH sensors with 15.2 m (50 ft) cable length 5172
4–20 mA output option 2684
12 VDC battery option 1414
230 V, 50 Hz battery eliminator with continental European Union plug 5721400
230 V, 50 Hz battery eliminator with United Kingdom plug 6244500
230 V, 50 Hz battery eliminator with Italian plug 6244600
8 English
Installation guidelines
D A N G E R
Explosion hazard. The instrument is not approved for installation in hazardous locations.
The monitoring location can affect the accuracy of flow measurements. Select sites that have a
continuous, steady flow and the least amount of turbulence. Turbulence can make it difficult to
identify an average velocity in the flow stream. Obstructions, vertical drops, pipe bends and elbows
can cause turbulence and affect the accuracy of the flow measurements. Table 2 gives
recommendations to prevent turbulence.
Table 2 Recommendations to prevent turbulence
Site condition Solution
Outfalls Put the sensor in at least 10 times the highest expected level upstream of
the outfall.
Vertical drops in the channel floor Put the sensor in at least 10 times the highest expected level upstream of
the vertical drop.
Put the sensor in at least 10 times the highest expected level downstream
of the vertical drop.
Elbows, sharp turns and “Y”
connections
Put the sensor in at least 10 times the highest expected level upstream of
the impediment.
Put the sensor in at least 10 times the highest expected level downstream
of the elbow, sharp turn or "Y" connection.
Install a power supply (optional)
Install the 12 VDC battery pack or the AC power converter from the manufacturer on the top of the
instrument. Refer to Figure 1.
Figure 1 Install a power supply
English 9
Mechanical installation
N O T I C E
Do not use open screw holes on the rear of the instrument to hang additional equipment or instrument damage
can occur. The screw holes on the instrument can only hold the weight of the instrument.
Wall mounting (optional)
Attach the instrument to the optional wall mounting bracket, then install the instrument on a wall.
Refer to Figure 2.
Figure 2 Wall mounting
Suspension harness mounting (optional)
Attach the instrument to the optional suspension harness, then install the instrument in a manhole or
similar site.
1. Install the two captive ¼-20 mounting screws of the suspension harness in the two top holes on
the rear of the instrument.
2. Optional: Use the stainless steel clip on the top of the suspension harness to attach the optional
instrument support bracket for the suspension bracket or a similar support.
10 English
Other manuals for Sigma 950
1
Table of contents
Languages:
Other Hach Measuring Instrument manuals
Hach
Hach BioTector B3500dw User manual
Hach
Hach Sension4 Reference guide
Hach
Hach MTC101 User manual
Hach
Hach POCKET COLORIMETER II User manual
Hach
Hach LANGE LOC 100 Quick manual
Hach
Hach orbisphere C1100 User manual
Hach
Hach 5500sc PO4 3-HR Instruction Manual
Hach
Hach 911 User manual
Hach
Hach DR2400 User manual
Hach
Hach 2100P Reference guide
Hach
Hach 910 User manual
Hach
Hach EZ Series Quick manual
Hach
Hach Hach SL1000 Quick manual
Hach
Hach DR/850 Reference guide
Hach
Hach CA610 User manual
Hach
Hach 51 Series User manual
Hach
Hach Lange CL17 User manual
Hach
Hach CLF10sc User manual
Hach
Hach POLYMETRON 8362 Quick manual
Hach
Hach TitraLab User manual
