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Huazheng HPC500, Руководство пользователя

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24

Press S to select

5

：

Return

; return to

adjust

menu via E. Press E again, return to adjust

menu.

7. Output Interface

The instrument could be equipped with mini PRTer to PRT out test results.

It could also be equipped with D/A analog output interface or RS-232 digital output

interface. As for the function of output interface plug on the back panel, please refer to

chart 2.

Digital output interface

2. RXD (receiving)

3. TXD (sending)

5. GND (grounding)

Fig.2 output interface pin function chart

7.1 D/A analog output interface

Our instrument bears complete linear D/A output

All lines enjoy 0-5V voltage, and 5V corresponds to the maximum value of each part. No

matter it is idle, double idle or general , instantaneous concentration values will be output

and regular output will remain in test.

7.2 Digital output interface

The instrument is equipped with standard RS232A serial interface.

The connection ways are as follows:

Instrument output

RS232 serial

communication

TX

D

RX

D

RX

D

TX

D

Содержание HPC500

Страница 1: ...HPC500 Automobile Exhaust Analyzer Huazheng Electric Manufacturing Baoding Co Ltd...

Страница 2: ...and operate and maintain the instrument according to the manual to prolong its service life Just a light press the test will be completed automatically is the operating characteristics of this instrum...

Страница 3: ...echnical parameters 2 IV Principle of operation 3 V Operation Instruction 4 VI Replacement of spare part 29 VII Diagnoses for breakdown 33 VIII Instrument storage and maintenance 34 IX Responsibility...

Страница 4: ...e idle idle double ASM condition measurement II The main function 1 the use of liquid crystal display Chinese or English menu can display HC CO CO2 O2 NOx NO NO2 COcor and speed oil temperature flow p...

Страница 5: ...M P 0 9999r m p OIL TEMP 0 150 2 error HC 10 10 6 PPM Vol absolute error or 5 relative error CO 0 03 10 2 Vol absolute error or 5 relative error CO2 0 5 10 2 Vol absolute error or 5 relative error O2...

Страница 6: ...be tested into test chamber and then test its relevant voltage value and compare it with the standard curve saved in computer to get correct concentration value of tested gas For test of HC CO and CO...

Страница 7: ...state for details refer to the explanation on the screen Key E mainly used for confirming chosen items and executing chosen operation Key Key mainly used for increasing and decreasing of data revision...

Страница 8: ...her gas pipeline of the instrument has leakage When cursor is moved to L P via Key S in collaboration with Key or Key press Key E and then a prompt appears on the screen Put around the probe with seal...

Страница 9: ...3 CLS namely reverse blowing For HPC400 instrument users can connect the instrument with air compressor for reverse blowing and sampling tube for reverse blowing cleaning Its operation is choose CLS v...

Страница 10: ...for display if choosing LPG test result of HC adopts propane normal C3H8 is chosen for display Test mode can either be set here or reset in test menu Continuously press Key S to choose in sequence Str...

Страница 11: ...4 5 may be chosen in sequence by pressing Key S Choose Item 6 VOLTAGE DISPLAY via Key S and then press Key E then the following image is displayed When something goes wrong with the instrument use th...

Страница 12: ...to carry on 45sec test When countdown ends send the average value of the last 30sec to check out as the test result Meanwhile PRT appears on the screen Choose PRT via S and then test result can be PRT...

Страница 13: ...test time number plate concentration values RPM and O T etc When Item 3 is chosen SCH by index on serial number press Key E and then index on serial number that can be reset is prompted on the screen...

Страница 14: ...dicates SET number plate When is chosen number plate shall not be set and the 7 character number plate behind it shall be invalid and there shall be not number plate in PRTing out nor is in data saved...

Страница 15: ...display after 10 minutes preheat 4 0 2 Connect probe with inlet of water trap on the back panel of the instrument with a 5 meter long plastic tube Equipped with a speed and oil temperature sensor spee...

Страница 16: ...end of 20 sec zeroing countdown the instrument enters into 30 sec HC remained check The following image is displayed 4 14 HC remained check passes test the following prompt of 70 of rated speed is dis...

Страница 17: ...verage value or is less than 22ppmvol the instrument opens reversing valve automatically to accelerate the cleaning of test optical path system The following prompt image shows that the instrument ent...

Страница 18: ...same as 4 1 2 4 2 3 The same as 4 1 3 4 2 4 The same as 4 1 4 4 2 5 After preheat of engine is completed the screen prompt notices adjust RPM to fast idle 50 of rated speed as following 4 2 6 The scr...

Страница 19: ...me the data shown is the average value AVE2 of the second time idle test 4 2 10 Choose PRT via S and press E to PRT out the test result of both fast idle test and idling 4 2 11 Save the same as 4 1 10...

Страница 20: ...ely open zeroing valve and Zeroing appears 60 seconds count down shutting off air pump cleaning reverse blowing sampling tube for 5 seconds switching off valve returning to test menu and showing the a...

Страница 21: ...n on the valve and clean optical path at an accelerated speed for 60 seconds and the screen will show When 60 seconds countdown ends close air pump carry on 5 second cleaning reverse blowing shut off...

Страница 22: ...speed 4 5 5 The screen will prompt notify put the probe in the exhaust please refer to 4 2 6 4 5 6 With exhaust gas entering the optical path of instrument fast idle test begins which is the same as...

Страница 23: ...splaying Set up menu Please refer to section 3 5 Choose Time setup in set up menu via S and press E for displaying year month day hh mm ss When cursor points at year year could be reset by pressing an...

Страница 24: ...ned shall be between 0 5 and 1 5 If N Scale obtained exceeds the range wrong adjust appears on the right bottom of the screen Choose ESC via S and return to adjust menu via E 6 2 O2 NO ADJ Select2 2 O...

Страница 25: ...perature source e g a cup with ice one high temperature source e g cup with hot water of over 85 degree and choose a thermometer with allowed error not larger than 0 5 FS to be a standard thermometer...

Страница 26: ...g reset menu press E and the screen will show HC CO CO2 scale restored Press S to select 5 return Config reset Press E return to adjust menu 6 4 2 O2 ORGN DATA Press S to select 2 O2 scale reset on Co...

Страница 27: ...terface 2 RXD receiving 3 TXD sending 5 GND grounding Fig 2 output interface pin function chart 7 1 D A analog output interface Our instrument bears complete linear D A output All lines enjoy 0 5V vol...

Страница 28: ...host copmputer 8 1 Telecommunication order 8 1 1 Pump switch on External computer gives out 01H Correspondence of the instrument ACK 06H 8 1 2 Pump switch off External computer gives out 02H Correspon...

Страница 29: ...ied NACK 15H 8 1 12 Reading saved data External computer gives out 0FH Correspondence of instrument ACK 06H data group number plate test time fast idle HC CO CO2 O2 NOx idle HC CO CO2 O2 NOx checking...

Страница 30: ...lve within the instrument shall be shut off If the external computer gives out 09H again and again during the process the instrument sends back 00H indicating that zeroing is on the way and will only...

Страница 31: ...external computer at each 03H and then sending back immediate data Other processes controlling and the data processing are responsible by external computer 8 3 Under the process of preheat L P zeroin...

Страница 32: ...sregarding the carry Checking sum 06H HC CO C O2 O2 NOx n T VI Replacement of spare part 1 The replacement of front filter core the filter paper of dust filter and the sponge filter mouth Note The fro...

Страница 33: ...ll while it leaves the factory If the paper has been used up and needs replacing please do as following 1 Open the door of paper box Press the above place of the box and it will open automatically If...

Страница 34: ...rotate At this time use your hand to send the paper to the paper entrance under the PRTer nose the paper then can enter the nose slowly until the paper has the needed length out of the box gate the sc...

Страница 35: ...ft of PRTer nose lift right margin slightly do not lay down By now if you discover the left side color bandbox has not fallen please use the finger to rotate slightly according to the arrow direction...

Страница 36: ...d that the optical path must be cleaned 4 In test process after starting HC remained check if it examines HC remained exceeding the allowed figure then it can prompt HC remained on the display screen...

Страница 37: ...as corrosion After each time use the instrument should be stored cleanly in moisture proof the mildew proof environment and should be not closed until the measured gas in the path of rays has been com...

Страница 38: ...Engine accelerates from idle to the medium rated speed maintains more than 5s and again falls to idle 2 Test 3 When reading take instantaneous maximum value and average value 4 As for multi exhaust p...

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