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The device replaces the devices for checking the attenuators D1-13A and D1-25. D1-29 is a step attenuator with a range of attenuation from 0 to 110 dB with a step of 10 dB, operating in the frequency range from 0 to 150 MHz. The device consists of a housing with damping cells and a switch with a counting device. The housing contains coaxial input and output connectors, as well as additional connectors "40 dB" and "80 dB", necessary for the verification of the device. Technical specifications Operating frequency range 0 – 150 MHz Difference attenuation setting range (after 10 dB) 0 – 110 dB Input electrical resistance to direct current 50 ± 0.1 ohms The output electrical resistance to direct current when connected to the load input is 50 ± 0.1 ohms 25 ± 0.1 ohms The main absolute error of the difference attenuation setting relative to the 0 dB mark at direct current ± (0.002 - 0.02) dB The main absolute error of the difference attenuation setting relative to the 10 dB mark in the frequency range up to 30 MHz ± (0.004 - 0.9) dB The main absolute error of the difference attenuation setting relative to the 10 dB mark in the frequency range over 30 to 150 MHz ± (0.09 - 3.0) dB The maximum permissible value of the electrical voltage (DC or AC) at the input of the attenuator 3 In the operating temperature range from 5 to 40 ° C Overall dimensions, mm 149x95x149 Weight, not more than 3 kg

A high-speed signal limiter amplifier. Designed for use in electronic counting frequency meters. Description: The magnitude of the input signals for selecting the switch input and inverting the signal of the limiter amplifier at a supply voltage of ± 5 V: - logical "0" not more than 0.2 V; - logical "1" at least 4.8 V. The value of the input signals of switching on / off the switch at a supply voltage of ± 5 V: - logical "0" no more than 3.3 V; - logical "1" at least 4.1 V. The magnitude of the output signals of the switch at a supply voltage of ± 5 V and a load of 300 ohms connected to zero potential: - logical "0" from 3.1 V to 3.4 V; - logical "1" from 4.0 V to 4.3 V. The minimum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz should be no more than 30 mV. The maximum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz must be at least 1 V. The value of the supply voltage: - positive 5±0.2 V; - negative -5±0.2 V. The current consumption should be no more than: - from a positive power source 110 mA; - from a negative power supply 35 mA.

Designed for filtration, evaporation, distillation, distillation, distillation and synthesis in laboratory conditions. Variants of execution: To-1-100-29/32 TU 9464-019-29508133-2015 To-1-1000-29/32 TU 9464-019-29508133-2015 To-1-10000-45/40 TU 9464-019-29508133-2015 To-1-2000-29/32 TU 9464-019-29508133-2015 To-1-250-29/32 TU 9464-019-29508133-2015 To-1-50-29/32 TU 9464-019-29508133-2015 K-1-500-29/32 TU 9464-019-29508133-2015 TO-1-4000-45/40 K-1-6000-45/40

It provides high analytical accuracy and is convenient for use and storage.

Combined working surface: STEEL main table top (single stainless steel module with anti-spill side) with a depth of 650 mm / auxiliary table top made of TRESPA material with a depth of 150 mm Length, mm: 1200 Depth, mm: 800 Height, mm: 900 BASIC EQUIPMENT The base is a collapsible frame made of rectangular steel profile, painted with powder paint (RAL 7035) with the texture of shagreen leather Hidden fasteners Two easily removable rear screens (RAL 7035) and one non-removable (RAL 5023) Rear side boxes Adjustable supports (0-40 mm)

Irradiator with a typical collimator Rotary drum magazine sources in tungsten and lead protection Software control of the movement of sources and positioning of the mobile platform An alarm and blocking system, radiation monitoring system to ensure the safety of the installation Control from the operator panel or computer with verification automation functions

Field of application: Cloning of restriction fragments. Connecting DNA fragments with blunt ends.

Frequency comparators CHK7-1011 and CHK7-1011/1 can also be used as frequency and time standards with frequency correction based on GLONASS/GPS signals as sources of highly stable signals in various frequency measuring systems. Comparators have a built-in device for processing measurement data based on a microcomputer, which provides statistical processing of the results of frequency and time measurements, and a device for displaying information based on a color TFT display. The built-in diagnostic system allows you to quickly determine the operability and condition of the main comparator devices with information output to the built-in display screen. Comparators are available in three versions and differ in composition and functions performed. Comparators have a basic set of devices (modules), including a frequency comparator, a power supply module and a device for processing and displaying information based on a microcomputer and a color TFT display. The frequency comparator CHK7-1011 has a built-in SRNS receiver and a highly stable rubidium frequency standard Ch1-1014 with the function of correcting the actual frequency value by signals from satellite radio navigation systems GLONASS or GPS. The comparator forms its own time scale with the ability to synchronize on any external time scale received by the SRNS receiver built into the device. The device has two modes for measuring the deviation of the generated time scale: from the time scale of the built-in SRNS receiver and from the external time scale. Information about the current time received from the SRNS receiver is displayed on the comparator display screen, and is also transmitted to the consumer via the RS-485 interface. All the above-mentioned features make the frequency comparator CHK7-1011 a unique measuring device in the field of frequency and time measurements. The frequency comparator CHK7-1011/1 has a highly stable rubidium frequency standard Ch1-1013 and can be used as a frequency and time standard as a source of highly stable signals in various frequency measuring systems. The frequency comparator CHK7-1011/2 does not include any additional devices. To carry out measurements with it, it is necessary to use a highly stable signal of the reference frequency from an external RF or hydrogen frequency standard. For the convenience of users, apart from the keypad, they can also exercise control of the functions of the devices with a mouse-type manipulator included in the delivery package. Comparators provide access to measurement data over an Ethernet network.

It is intended for determining blood groups by direct agglutination reaction and conducting tests for compatibility of the donor and recipient. The P-50 tablet is made of impact-resistant polystyrene of the UPM-0508 brand. The surface of the tablet has the property of forming a regular flat drop. The wells have sides that prevent the spreading of reagents. Alphanumeric marking facilitates the organization of registration of analysis

As external consumers, thermostatic circuits of laboratory chemical reactors, measuring instruments and other equipment can be connected to the thermostat. Feed pump for external closed-type thermostating systems. Operating temperature range -30...+100 °C. Stability and uniformity of temperature in the working bath is not worse than ± 0.01 ° C. Bath volume 18 l Overall dimensions 440x700x640 mm The open part of the bath is 115x190 mm Bath depth 300 mm Weight 57 kg Power consumption 3.5 kW

The ZVPlE-630 shutter consists of a housing with connecting flanges, a shutter mechanism, a lip seal to ensure the tightness of the drive element, cover, and electric drive. The shutter mechanism consists of a carriage, an upper and lower flap, which are pulled together by springs and balls. The carriage moves along the housing guides on bearings. The ZVPlE-630 shutter is opened and closed both by electric drive and manually using a flywheel. To switch to manual control mode, there is a switching device on the electric drive. The manual drive is used to adjust and adjust the shutter. ZVPlE-630 valves are manufactured in climatic versions UHL (i.e. for moderate and cold climate) and O (i.e. general) 4 according to GOST standard 15150-69.

KLM-A532-5-5 laser modules are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes.