The CSA/UL/IEC 61010 series of standards are applicable to laboratory equipment, measuring instruments, and production process control instruments. The CSA/UL61010 standard is based on the IEC61010 standard and is jointly developed by CSA, ISA, and UL and is designated as a national standard for the United States and Canada. From the perspective of the manufacturer, this article intends to help them better understand this standard and related requirements, to understand the issues that should be paid attention to during the product design and manufacturing process, to make the product certification and certification process smoother, and to ensure the timely listing of products.
61010 Series Standard Overview Unlike many other standards for household products, the 61010 series of standards are generally for professional, industrial process and educational electrical equipment. Specifically, they can be divided into the following three categories:
Test and measurement equipment: such as signal generators, spectrum analyzers, and multimeters;
Process control equipment: such as a water pump controller controlled by input variables, a pipeline control device;
Laboratory equipment: such as gas chromatographs, disinfection cabinets and in vitro testing equipment (IVD)
There are three versions of the 61010 series of standards, namely IEC 61010-1:2001, MOD, CAN/CSA-C22.2 No. 61010-1-04 (second edition), and UL 61010-1 (second edition). IEC 61010-1:2001 is the most primitive standard, and the latter two are based on its evolution. Among them, CAN/CSA-C22.2 No. 61010-1-04 has added amendments to the special situation of the Canadian market, and UL 61010-1 has added amendments to the special situation of the US market.
These versions of the 61010 series of standards can be divided into three parts, the first part is the general requirements for a variety of products; the second part is for individual equipment specific requirements, such as 61010-2-010 heating materials; third Part of it is an independent standard for special equipment, such as the 61010-031 handheld probe assembly.
Identification requirements on the device The identification is an indispensable part of the device and the manufacturer needs to ensure that the identification is visible from the outside and not in the removable part. In addition to handheld devices or because of limited space, the logo should not be at the bottom (Table 1 is a common logo illustration). There are two types of logos, which are general signs and warning signs.
General label:
Identification, generally the name or logo of the manufacturer;
Power rating input;
Replaceable fuse: indicates the correct replacement information for the operator;
Terminal and operating device;
Switches and circuit breakers;
Double insulated or reinforced insulation equipment and field junction boxes.
Warning label:
Required to be visible during normal use. The height of the mark needs to be greater than 2.75mm, the height of the text is greater than 1.5mm, and the contrast with the background color is obvious. If the color of the logo does not contrast with the background, the height of the mark and text of the mold, stamp or engraving needs to be greater than 2.0 mm, and the protrusion is greater than 0.5 mm.
The content of the logo should be kept clear under normal use, and the attached label should not fall or curl on the edges and can withstand cleaning by the manufacturer's specified cleaning agent. The general cleaning method is to use a cloth head of a supermarket, with a cleaning agent specified by the manufacturer (in the absence of a cleaning agent, isopropyl alcohol can be used instead), and then manually rub the mark for 30 seconds.
User Manual Requirements The User Manual must include not only general purpose information such as the purpose of use, technical specifications, instructions for use, the name and address of the manufacturer and supplier responsible for technical support, but also include:
Equipment rating: supply voltage (range), frequency (range) and power or rated current; description of input and output interface; installation of environmental conditions, etc.: component, position and fixing requirements; description of protective grounding; connection of power supply; ventilation requirements, etc. Operation: Explain that the equipment should not be placed in a place where it is not easy to be powered off; the interpretation of the safety signs used; the procedures for reducing the hazard of flammable liquids;
Maintenance: Provides the necessary guidance for those who need preventive maintenance and inspection; all tests that ensure the safety of the test equipment; all parts that can only be supplied by the manufacturer or intermediary.
If there is a label for the measurement category near the terminal, you need to define various measurement categories in the user manual. Also, equipment that measures category I should be warned that it cannot be used to measure categories II, III, and IV, and should have a rating that includes transient overvoltage. In addition, for equipment that detects dangerous voltages, the instructions should inform you how to determine the proper operation of the equipment.
Risks to be avoided in product design
The safety of users is first, and unsafe products are also difficult to pass relevant tests and certifications. In order to ensure that the products produced can be certified at one time, designers must consider the following aspects of risk when designing products:
Risk of electric shock: Pay attention to the touchability, normal and abnormal conditions, the connection of external circuits, and the insulation strength.
Mechanical hazard: Pay attention to moving parts, handles, wall fixings, and parts that may be scattered.
Impact protection: Pay attention to the strength of the casing and the resistance to falling.
Fire protection: pay attention to reducing the source of ignition, designing energy limiting circuits, preventing contact with flammable liquids, and overcurrent protection.
Extreme temperatures and heat: Pay attention to the temperature of the surface, windings and non-metallic enclosures.
Liquid: Pay attention to cleaning, spilling, spilling, hydraulic and leaking.
Radiation Hazard, Sonic and Ultrasonic Pressure: Pay attention to intentional radiation such as X-ray equipment, unintentional radiation such as CRT, laser, UV and sound level.
Leaking gases, explosions, and internal explosions: Pay attention to toxic gases, battery charging, and internal explosions in CRTs.
Component selection: Select a device that meets the specifications.
Chained devices: Avoid repeated activations.
Current measurement circuit and multimeter.
to sum up
After understanding these requirements and points of attention, the manufacturer can pay attention to the relevant points in the product design process, and strive to produce the products once to pass the certification, avoiding the waste of manpower, material resources and financial resources caused by repeated modification of the products. .
A pipette, also known as a pipette gun, is a device used to quantitatively transfer liquids. When conducting research in analytical testing, a small or trace amount of liquid is generally removed with a pipette. Pipettes can be divided into gas piston pipettes (Air-displacement pipette) and external piston pipettes (Positive-displacement pipette) according to the principle. Gas piston pipettes are mainly used for standard pipetting, and external piston pipettes are mainly used to handle special liquids such as volatile, corrosive and viscous. Many people ignore the correct use of pipettes and some of the details.
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