Metrology

The frequency meter is capable of operating both independently and as part of automated measuring systems with an interface such as USB, RS-232 or IEEE-488 (CPC). Technical specifications Frequency and period of sinusoidal and video pulse signals (input A) 0.005 Hz - 100 MHz Frequency of sinusoidal and video pulse signals (input to) 0.01 Hz - 100 MHz Frequency of continuous sinusoidal oscillations (input C) (0.1 - 1) GHz Frequency of continuous sinusoidal oscillations (input D) (0.6 - 17.85) GHz Pulse duration 10 ns - 10000 s The duration of the front, the decay of the pulses is 5 ns - 100 microseconds Time interval from 0 to 10000 s The frequency ratio of the two signals is up to 109 The average value of the carrier frequency of the pulse-modulated (IM) signal (input D) (0.6 - 17.85) GHz Frequency measurement resolution 2x10-10 s/Rng Phase difference of two synchronous sinusoidal signals from minus 180° to 180° Measurement error of the phase difference of two synchronous sinusoidal signals ± 0.36° (from 1 kHz to 1 MHz)±3.6° (above 1 MHz) Input signal level: •for sinusoidal signal (inputs A, B) (0.03 - 7.0) V •for video pulse signal (inputs A, B) (0.1 - 10.0) V •for a sinusoidal signal (input C) (0.03 - 1.0) V •for sinusoidal and IM signals (input D) 30 MW - 5 MW Input resistance •Inputs A, B (50±2.5) ohms; (1±0.1) MOm/100 pF •inputs C, D (50±2.5) ohms Nominal frequency value of the reference quartz oscillator 10 MHz Relative error in the frequency of the quartz oscillator, no more than ± 2x10-7 in 12 months Operating temperature range from minus 10 to 50 °C AC power supply 220 V, 50 Hz; 220 V, 400 Hz Power consumption, no more than 50 VA Overall dimensions, mm 229x136x435.5 Weight, not more than 7.5 kg

According to the numerous wishes of our clients, the marketing and sales department of NTM-Zashchita LLC has formed an optimal Laboratory for measuring physical factors for certifying organizations.

The generator is capable of operating both independently and as part of automated measuring systems with USB and IEEE-488 (CPC) interfaces. Technical specifications Frequency range (RF output) from 9 kHz to 6 GHz Frequency range (LF outputs) from 0.001 Hz to 30 MHz Frequency tuning discreteness (RF output) 1 Hz Frequency tuning discreteness (LF outputs) 0.001 Hz The main error of the frequency setting is ± 3x10-7 Hz The range of setting the output signal power level at the main RF output is from minus 120 to 13 dBm The range of setting the signal amplitude at a load of 50 ohms (LF outputs) from 0.01 to 5 V The basic error of setting the reference power level (RF output) ± (0.5 – 1.0) dB The basic error of setting the amplitude of sinusoidal signals (LF outputs) ± (3 – 15)% Instability of the signal power level for any 15-minute time interval (RF output) no more than 0.1 dB Metrological characteristics of the generator in the FM operation mode: - frequency range of the modulating signal from 1 to 100 kHz - frequency deviation setting range (taking into account the carrier frequency value) from 12.5 to 4000 kHz - the basic error of setting the frequency deviation ± (10 – 20)% Metrological characteristics of the generator in AM operation mode: - frequency range of the modulating signal from 0.05 to 5.0 kHz - the range of setting the amplitude modulation coefficient from 1 to 100 % - the basic error of setting the amplitude modulation coefficient (when operating from an internal signal source) ± (0.15 M + 0.2)% Metrological characteristics of the generator in the IM operation mode: - the duration range of modulating pulses from 100 ns to 20 s - the range of the modulating pulse repetition period from 140 ns to 30 s - the difference in the duration of the output RF pulses from the duration of the modulating pulses ± 100 ns Operating temperature range from minus 10 to 40 °C AC power supply 220 V, 50 Hz Power consumption, not more than 100 VA Overall dimensions, mm 498x136x487 Weight, not more than 15 kg

Together with the conversion unit, a network AC-DC adapter module is supplied, as well as an intermediate power supply module.

The surface smart probe L=500 mm SZPV.500 is designed to measure the temperature of various materials by direct contact of the probe with the measuring object and transmitting the measured value via Bluetooth to devices with the ThermoMonitor based on the Android program. Operating conditions of the SZPV.500 smart probe Ambient temperature, °C: -20...+55. Relative humidity, %: not more than 80 at T=35 °C. Atmospheric pressure, kPa: 86...106. Functionality of the SZPV.500 smart probe Measurement of physical quantities with a resolution of 0.01. Recording of measured values at intervals from 5 seconds to 23 hours 59 minutes 59 seconds (only smart probes with built-in memory). Transmitting data about measured physical quantities via Bluetooth to a device with the ThermoMonitor based on the Android program. Transmitting information about the state of charge of the built-in battery via Bluetooth to a device with the ThermoMonitor based on the Android program. Automatic transition to sleep mode after 50 seconds. The ability to connect external power. Possibility of calibration.

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.

Purpose: measurement of the product of the air kerma by length, followed by the calculation of the CTDI tomographic dose index (using the CTDI phantom) for the following calculation of the effective dose received by the patient; monitoring the stability of medical X-ray machines during their operation; calculation of the dose index of a computer tomograph (MPCT) according to GOST R IEC 61223-2-6-2001.

Since it is reliable and easy to operate, the device is widely used in metrological centers, measuring laboratories, at the workplaces of REA developers. The comparator Ch7-1014 has a communication interface with an external personal computer USB 2.0 and application software for an external PC. At the request of the customer, the comparator can be supplied complete with a laptop or tablet computer with installed software.

Technical specifications: The waveform is sinusoidal, rectangular (TTL) Frequency range from 0.1 Hz to 10 MHz Frequency setting error ±0.02% Frequency instability ±0.01% in 15 min Signal amplitude ± 2.5 V at 50 ohm load ±5 V without load Limits of adjustment of the output signal level from 2 mV to 1.85 V (skz) at a load of 50 ohms from 4 mV to 3.75 V (scz) without load Signal level unevenness ± 5% at frequencies from 0.1 to 10 Hz relative to 1 kHz ± 2% at frequencies from 10 Hz to 1 MHz ±10% at frequencies from 1 to 10 MHz Harmonic coefficient ± 0.2% at frequencies from 10 to 100 Hz ±0.07% at frequencies from 100 Hz to 20 kHz ± 0.2% at frequencies from 20 to 120 kHz ±1% at frequencies from 120 kHz to 1 MHz ±4% at frequencies from 1 to 10 MHz Parameters of the rectangular (TTL) signal form log. "1" 3 2.4 V; log. "0" ≤ 0.4 V In the frequency range from 0.1 Hz to 2 MHz, the duration of the front, the cutoff is not more than 100 ns Operating temperature range from minus 10 °C to + 40 °C Power supply ~230 V, 50 Hz; 10 V×A Dimensions; weight 210×71×255 mm; 2 kg

It is designed to measure sound pressure in the air and is used in noise measuring equipment as a measuring transducer of infrasound, sound and ultrasonic pressure.

Purpose: Temperature measurement and sampling of molten steel. Scope of application: Oxygen converters, electric arc furnaces, induction furnaces, casting buckets Measuring range: from 1400 to 1800 °C - metal temperature Accuracy: 0 + 3°C at 1554°C The shape of the selected metal shape: Circle: thickness 12 mm Oval: thickness 12 mm Deoxidizer: Without deoxidizer, aluminum, zirconium, titanium Measurement time: 8 sec Tube Length: from 100 to 2500 mm (other length is possible on request) Slag Cap: Steel, Aluminum, Cardboard Type of NSH: B, S, R

Bottles are used to protect the basic properties of chemical, pharmaceutical and other liquid, paste-like, mixed fluid products. Designed for scientific research. Not intended for medical use. Bottle: low density polyethylene (LDPE). Cover: polypropylene (polypropylene copolymers). The addition of a nucleator (illuminator) is allowed for greater hardness (if necessary).