General information. Detectors have Р0 Ex ia I Х /0 Ex ia IIС T4 Х explosion proof mark.

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Todd Lawrence
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1 General information This operations manual in coincidence with a passport is an operation maintenance guide of "Microsense 730" portable gas analyzers (further - device) which contains sections providing a proper use and descriptions of functional principle, performance specifications and other information which is necessary for proper use. Detectors are designed for concentration measurement of combustible gases, volume ratio of oxygen, carbon oxide and hydrogen disulfide. Detectors can be used in coal, oil, gas, power industry. Detectors have Р0 Ex ia I Х /0 Ex ia IIС T4 Х explosion proof mark. The manufacturer guarantees regular operation of the detector, only if the requirements of this document are observed. This Manual must be carefully read before using the detectors. Prior to operation or maintenance of the detectors, make sure that you read and understood the content of the Manual in full. This condition is obligatory to ensure safe operation and proper functioning of the detectors. 1. Description and Operation 1.1 Function and Application Range Devices are designed to measure the concentration of combustible gases and volume ratio of oxygen, carbon oxide and hydrogen disulfide. Devices can be used in coal, oil, gas, power industry. The detector performs the following functions: - continuous monitoring and digital indication of controlled gas components; - light, sound and vibro-alarm when concentration of controlled gases reaches the set (alarm) level; - record and subsequent display of concentration extreme values over a period after switching on; - recording of measurement results by means of non-volatile memory; - transfer of measurement results to a PC; - fault indication 1.2 Design and functional principle The front panel of the case includes: lamp signaling visual panel responsible for air condition alarm (1) color LCD display (2) buzzer (3)

controlled gas detector element (4), (6), (7); detector control button (5);

(8); Clip (9); Nameplate (10); Number plate (11) Functional principle For C X

sensor which functional principle is based on the preferential absorption of

2 controlled gas detector element (4), (6), (7); detector control button (5); The following items are located on the back panel of the case: D-ring mount (8); Clip (9); Nameplate (10); Number plate (11) Functional principle For C X H Y measurement the device contains a high-capacity low-consuming optical sensor which functional principle is based on the preferential absorption of infrared radiation by molecules of hydrocarbons in the field of 3,3 3,4 microns wavelengths.

3 For measurement of oxygen and toxic gases concentration device contains sensors which measurement principle is electrochemical method. The pressure and temperature sensors for internalization of external factors which influence the measurement accuracy are also installed in the device. Data from these sensors isn't displayed. For power supply a non-chargeable chemical source is used which works, depending on modification, for 2 or 3 years. 1.3 Technical Specifications Dimensions, Weight, Power Supply and Power Consumption of Detectors The overall dimensions, weight, power supply source and power consumption of the detectors are specified in Table 1. Table 1 Dimensions (L x W x H), mm Weight, kg Electric power source Power consumption (max.), VA 119х70х34 (119х70х49 with a clip) 0,195 (0,220 with a clip) Non-rechargeable chemical source 0, Operating Conditions Operating conditions of the detectors are specified in Table 2. Table 2 Parameters Value Unit of measure Ambient temperature range -20 to +50 С Atmospheric pressure range 84 to kpa Humidity range 25 to 95 % (at 25 о С) Technical Characteristics in Brief A brief description of technical characteristics of the detectors is specified in Table 3. Table 3

4 Parameters Value Unit of measure Rated voltage of DC power 3.6 V Explosion protection marking Р0 Ex ia I Х /0 Ex ia IIС T4 Х - Dust and moisture protection IP 67 - Warm-up time and preparation for the operating mode (max.) 120 sec. Battery life at 25 С (depending on modification) 2 3 years Operating time without adjusting the measuring channels of: - hydrocarbons - carbon monoxide, hydrogen sulfide, oxygen month Calibration period 12 month Metrological Characteristics Metrological characteristics of the detectors are specified in Table 4. Table 4 Measured component Measurement range of volume ratio Variation range of volume ratio Permissible measurement error: absolute relative Response time t90, sec.(max.) Nominal scale point of the least category Oxygen (О 2 ) 0-30 % 0-30 % ± 0,5 % ,1 % Carbon oxide 0-50 ppm ppm ppm - ± 4 ppm ppm -1 (СО) - ± 10 % Hydrogen sulfide (H 2 S) Methane (CH4) LFL ppm ppm -1 - ± 1,7 ppm ppm % ± 20 % 30 0,1 ppm -1 1 ppm Power Supply The source of power supply is integral Li- SOCl 2 battery U 0 :3.6V; I 0 : 0.16А. The battery is non-rechargeable and designed for overall device service life.

5 1.3.6 Software The integrated software (further SW) of the detector is meant for gas concentration measurement, atmosphere parameter display, alarm switch-on and switch-off, tool diagnostics. Identification data of the integrated software is specified in Table 5. Table 5 Software name Software identification CRC checksum Software version (ID) Cyclic redundancy check Microsense Microsense bi n Ver 1.х CRC32 Notes: 1) The sign "x" in number of the SW version designates the minor changes which don t influence metrological characteristics; 2) The checksum specified in the table belongs only to the flash file of the version 1.x The detectors comply with the requirements of GOST R MEK , GOST R MEK , GOST R , GOST 24754, CU TR 012/2011 and the design documents validated and approved in accordance with established procedure. Explosion protection of the detectors is provided by «ia» intrinsically safe electrical circuit in accordance with GOST R MEK ; The level of «ia» intrinsically safe circuit is ensured by: - compliance with the requirements to electric strength of insulation under Section of GOST R MEK ; - compliance with the requirements of GOST R MEK to leakage path and electric clearance; Explosion proof detectors with «ia» intrinsically safe electrical circuit under GOST R MEK have the following characteristics: the diameter of connecting wires of electric circuits is no less than 0.1 mm, the conductor width of electronic circuits is 0.3 mm in accordance with GOST R MEK ; secure levels of inductance and capacitance of the circuit elements: L Σ 15 uh, С Σ 470 mfd ; electric strength of insulation between intrinsically safe electrical circuit and the casing is not less than 500 V;

6 leakage paths and electric clearance between intrinsically safe electrical circuit and the casing, as well as between input and output circuits are not less than 2 mm; heating of elements and connectors must be lower than 135 С; frictional intrinsic safety of the detector is ensured by absence of components made of light alloys; electrostatic intrinsic safety of Microsense detector is provided by limited surface area of nonmetallic shell of the detector with resistance >10 9 О in accordance with Section of GOST R MEK ; Notice: display surface area is 1598 mm 2, framed by electrical resistance surface cover 10 9 О minimum. in accordance with GOST 14254, the level of the detector s ingress protection must be at least IP 67; intrinsically safe elements must be used at no more than 2/3 of permissible voltage and power capacity in accordance with the requirements of Subsections 7.1, 8.5 of GOST R MEK ; electric power supply of the detector must be performed from non-rechargeable battery of U0: 3,9В; I0: 0,425А. tracking resistance of electric insulating materials is not lower than 100V in accordance with Table 5 (line 7) of GOST R MEK Marking and Packaging Marking Marking of the detector is made on the nameplate located on the back panel of the casing (see Figure 1 8). The nameplate is composed in accordance with Figure 2 and contains data specified in Table 6.

Figure 1. Detector s Nameplate Inscription: IGM-Detector Co. Ltd., MicroSense gas detector, Model type, serial number, release date, TU 4215-001-16713073-2012, OS VRE VostNII No. ROSS.Ru.MG07.

7 Figure 1. Detector s Nameplate Inscription: IGM-Detector Co. Ltd., MicroSense gas detector, Model type, serial number, release date, TU , OS VRE VostNII No. ROSS.Ru.MG07. В00386, GOST R Table 6 No. in Description figure 1 Name of the manufacturer 2 Detector s name 3 Model type 4 Explosion risk mark of CU TR 012/ TU , sign OS VRE VostNII No. ROSS.Ru.MG07. В00 6 GOST R sign 7 Explosion protection marks - Р0 Ex ia I Х /0 Ex ia IIС T4 Х 8 Factory serial number, year (last two digits) and production quarter 9 Approval mark for measuring instruments in accordance with PR Ambient temperature range 11 Text "WARNING DON'T CHARGE the BATTERY IN THE DANGEROUS ZONE 12 dust and moisture protection IP54 13 After the certificate receipt a unique conformity mark of the Customs union member governments Packaging

8 The method of packaging, preparation for packaging, shipping containers, materials used for packaging, and layout shall comply with the manufacturer's drawings. The detectors must be packed in a corrugated cardboard box in accordance with GOST Accompanying documents must be enclosed. 1.5 Delivery Set The delivery set of the detector is listed in Table 7. Table 7 Packaging Detector Calibration cap, strap Calibration procedure Instruction Manual Name Quantity 1 pcs 1 pcs. 1 pcs. 1 copy 1 copy Compliance Certificate (a copy) 1 copy 2 Setting-Up Procedures and Operation All activities related to operation and calibration of the detector must be performed in accordance with the requirements for electrostatic protection. The detector secures safety under compliance with the requirements (rules, conditions) stipulated by the service documentation. The detector meets the safety requirements prescribed by GOST and GOST The device belongs to the III class of electrical products by the method of protection against electric shock according to GOST Before using, ensure the integrity of the casing, keypad and display. In case of transfer to the consumer, or in case of operation, the device can be in the following conditions: * "super sleep mode" - a device condition for the period of transportation to the consumer from manufacturer. * "sleep mode" a device condition for the inaction period (lack of use, for example, between changes) - the absence of any symbols on display, except the remained operating time of the device.

9 * "operating mode" the numbers on the display indicate concentration of the measured gases; During transportation from manufacturer to consumer the device is in a condition of ultralow energy consumption "super sleep mode" condition. At the same time there is no indication on the display, but the chains which are responsible for sensors conditions are activated. After activation of the device a return to a "super sleep mode" condition is impossible, operability countdown starts. After exterior check the device should be brought out of "super sleep mode" in clean air by holding the button which is located on a faceplate. After switching on the sensors will be checked within 30 seconds subject to the device is switched on in clean air, the display is checked the signs and parameters must be displayed, 2 short sound signals will be heard one loud and one silent, which means that the sound alarm is properly functioning, the vibrating motor is checked by single switching on, all indicators of a lamp signaling are cascaded intermittent, display illumination is switched on momentarily. After internal systems checking, the device will pass into a measured gases view state condition and also algorithm for calculation of STEL and TWA will be started. Having finished the work gas analyzer has to be switched to "sleep mode" by long pushing the button. In operating time of the device by short-term pressing the button you may cycle information on the screen: Basic display - current reading of gas contamination which updates on-line. Min display - bottom value of gas concentration. "HIGH" symbols in the bottom of the display. STEL display - STEL information, "STEL" in the bottom of the display. "TWA display" - TWA information, "TWA" in the bottom of the display. After showing TWA information a display will get back to current data imaging mode. Each keystroke induces display lighting for 2 seconds. Digital n-character display

Device display, marked by numbers: 1) hydrogen sulfide concentration, 0-999 ppm 2) CXHY concentration (0-100 LFL) 3) oxygen concentration (0 30 Vol.

10 Device display, marked by numbers: 1) hydrogen sulfide concentration, ppm 2) CXHY concentration (0-100 LFL) 3) oxygen concentration (0 30 Vol.%) 4) carbon monoxide concentration (0-999 ppm) 5) operating time left, in weeks 6) operating time left from service life, %, 7) quantity of working time left 8) sign of maintenance support necessity 9) max. and min. gas concentration from last sleep mode 10) TWA indicator 11) STEL indicator Signaling system There are 2 alarm levels for each channel: CO, H2S, LEL channels «Level 1» and «Level 2» any value from 10% MPC to scale range end, if conditions are met «Level 1» < «Level 2». O2 channel «level 1» < 20,7%; «level 2» > 21,2% In case of alarm levels reaching by any channel - light, sound and vibro alarm are activated. Indication of concentration starts to blink depending on by mean of which channel operating threshold was reached. CO, H2S, LEL channels In case of "Level 1" threshold exceeding by CO, H2S, LEL channels light, vibro and sound alarm are activated with 85 db acoustic pressure. Sound and vibro alarm can be disabled by short-time clicking the button. Channel value continues to blink, lamp signaling reduces the frequency of flashlights five times less. All types of alarm are automatically disabled in case of measured gases concentration reducing according to safe threshold level.

11 In case of "Level 2" threshold exceeding by CO, H2S, LEL channels light, vibro and sound alarm are activated with 95 db acoustic pressure. Sound, light and vibro alarm can t be disabled till concentration reducing lower than «level 2». O2 channel If reached «Level 1» (low value of O 2 concentration) by O2 channel light, vibro and sound alarm are activated with 95 db acoustic pressure. Alarm can t be disabled, all types of alarm switches off after gas concentration will change lower «Level 1» threshold. If reached «Level 2» (high value of O 2 concentration) by O2 channel light, vibro and sound alarm are activated with 85 db acoustic pressure. Sound and vibro alarm can be disabled by short-time clicking the button. O 2 concentration continues to blink, light alarm reduces the frequency of flashlights five times less. All types of alarm switches off after gas concentration will change lower «Level 1» threshold. Built-in clock The device contains a built-in clock for binding of measured gases concentration to the measurement time in the built-in memory. Time is corrected automatically reading data from the built-in memory to the external device. Time isn t indicated on the display. Remained operating time The device is equipped with remained operating time display function. This function traces operation parameters, number of alarm actuations, temperature operating conditions etc. for remained operating time forecasting. Original calculation is made according to the following conditions: ambient temperature 25 C, total signaling action time within 1 day doesn't exceed 2 minutes. Indication of the remained operating time is calculated in weeks (WK) by the end of work or in percentage of all period of operation (% is displayed). During the "sleep mode" for extended life of the instrument, the alarm and record to non-volatile storage are disabled. Internal memory of the device. The device is equipped with the built-in non-volatile memory for storage of measured gases concentration with a binding to the time of the device. In the device's memory about records about atmosphere condition can be kept. Time between data recording can be adjusted ranging from 15 up to 3600 seconds. Interval between data logging, sec log duration over continuous work, hrs log duration over continuous work, days log duration over shiftwork, with shift duration 8 hours, shifts

12 Установка параметров прибора Корректировка параметров работы прибора возможна с использованием внешней программы, установленной на устройство с поддержкой передачи данных по протоколу ISO (NFC), данный устройством может являться либо смартфон с NFC модулем, либо компьютер с устройством считывания данных по NFC. Parameters adjustment Parameters adjustment of the device operation is possible with use of the external program installed at the device with data transfer supporting according to ISO (NFC) protocol, this may be a smartphone with NFC module or PC with NFC data reader.

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