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Summary of Contents for BRECHTEL mini-OPC 9405
- Page 1 Instrument Manual Ver. 2.0 mini-OPC 9405 For UAV Reader version 8.1 and firmware version 3.1 BMI PN: 83-00032-01 August 17, 2023...
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Page 2: Table Of Contents
5.4 mini-OPC Options 5.5 mini-OPC Specifications ......System Setup 83-00032-01 mini-OPC 9405 Page 1 of 39... - Page 3 ........7.4 Data Files 83-00032-01 mini-OPC 9405 Page 2 of 39...
- Page 4 ......8.1 Cleaning the mini-OPC mOPC Errors 10 Troubleshooting 83-00032-01 mini-OPC 9405 Page 3 of 39...
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Page 5: Caution
1.2 Shock during shipping If the shock watch installed on the shipping case has tripped, contact BRECHTEL. Oper- ate the unit to confirm proper operation before using for actual measurements. -
Page 6: Changes
Changes 2 Changes Change Description Page Date Author v1.0 New Release 3/1/2019 v1.1 SW/FW update; SD Card; Specs Cover,13 7/29/2020 updated v2.0 SW/FW updates 6/16/23 AC/FJB 83-00032-01 mini-OPC 9405 Page 5 of 39... -
Page 7: Contact Brechtel
Contact BRECHTEL 3 Contact BRECHTEL 3.1 Getting Help Contact BRECHTEL for any questions or assistance with this product. Include the model and serial numbers when contacting Brechtel. 1789 Addison Way Hayward, California 94544 Telephone: (510) 732-9723 Fax: (510) 732-9153 Email: sales@brechtel.com... -
Page 8: Unboxing
Unboxing 4 Unboxing Each BRECHTEL mini-OPC is inspected and tested in-house at BRECHTEL to ensure out of the box operation upon delivery. Prior to opening, inspect the packaging container and ShockWatch impact indicators. Carefully open the package and inspect the instrument and any accessories for broken parts, scratches, dents or other signs of damage incurred during shipping. -
Page 9: Mini-Opc Overview
Do NOT change the values of the sample and sheath flow rates from 0.06 and 0.6 lpm, respectively. Doing so invalidates the size calibration of the mini-OPC. 83-00032-01 mini-OPC 9405 Page 8 of 39... - Page 10 Particles take up water under conditions of high humidity, which is one reason the mini- OPC sample flow should be dried before entering the unit to remove particle-bound wa- ter that will influence particle size. Contact Brechtel if you require a sample flow drying solution.
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Page 11: Theory Of Operation
To improve the accuracy of the measured concentrations, the fol- lowing equation may be used to correct the measured concentrations for coincidence: 83-00032-01 mini-OPC 9405 Page 10 of 39... -
Page 12: Component Technical Descriptions
Note: Saved concentration data have NOT been corrected for coinci- dence. 5.3 Component Technical Descriptions The BRECHTEL mini-OPC system includes three separate components. Component 1 mini-OPC main assembly (body, detector board, main board, pump all integrated to ’U’ bracket mount) Component 2 A front panel display connected by ribbon cable to the main board. -
Page 13: Mini-Opc Options
Additional 12 VDC power supply Duplicate supply to operate mini-OPC in for ground operation of any two locations ACCESS module ACC-PC Computer loaded with UAV Easily operate mini-OPC in multiple Reader Software locations. 83-00032-01 mini-OPC 9405 Page 12 of 39... -
Page 14: Mini-Opc Specifications
3.7 x 4.7 x 6.0 in/9.4 x 11.9 x 15.2 cm Weight 2.2 lbs/1.0 kg Supply voltage 12 VDC (9-16 VDC) Power usage 6-9 watts (without/with display) Mounting Hard mounting points in metal body bracket 83-00032-01 mini-OPC 9405 Page 13 of 39... -
Page 15: System Setup
Table 3: Assembly Parts Description Base Unit Front Panel Display Display Ribbon Cable Ship Kit Power supply Figure 4: View of mini-OPC assembly. 83-00032-01 mini-OPC 9405 Page 14 of 39... -
Page 16: Tubing Connections
Ensure the power plug is fully seated in the connector before connecting the instrument to a computer. 6.5 Communication Connections Connect the various cables provided with the mini-OPC as described in the table below. 83-00032-01 mini-OPC 9405 Page 15 of 39... -
Page 17: Computer Connections
USB Port on the mini-OPC main board as shown in figure 4. The UAV Reader software may be purchased as an accessory to the mini-OPC installed on a ruggedi- zed tablet, contact BRECHTEL for information. Connect the USB cable prior to running the software. Do not disconnect the USB cable while the software is running. -
Page 18: Mounting
Bolts should not extend into the cover so much that they would interfere with the main control board connections. Figure 5: mini-OPC as- sembly overall dimensions (inches and millimeters in parentheses). 83-00032-01 mini-OPC 9405 Page 17 of 39... - Page 19 6.6 Mounting Figure 6: Front panel dis- play mounting bracket de- tailed dimensions (inches and millimeters in paren- theses). 83-00032-01 mini-OPC 9405 Page 18 of 39...
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Page 20: Operating The Mini-Opc
To protect the detector, good ESD practices are critical to main- taining and operating your device. • Be sure to always ground yourself before handling the unit • Be sure to always connect the unit to earth ground 83-00032-01 mini-OPC 9405 Page 19 of 39... -
Page 21: Startup & Shutdown
The only user-settable item in this menu is ’SD Save’, all other items are set by the mini- OPC automatically. A quick push of the data knob will select the SD Save value, rotate the knob to change the value. 83-00032-01 mini-OPC 9405 Page 20 of 39... -
Page 22: Opc Control Menu
Windows PC running the UAV Reader software. In ”DEFAULT SETTINGS” mode there are six available menus: 83-00032-01 mini-OPC 9405 Page 21 of 39... -
Page 23: Opc Settings Menu
(slope for pressure reading) press_offs: (offset for pressure reading) pmt_base_cal: (setpoint for PMT base control) RAW READINGS Menu sample_raw: (raw sample LFE flow reading (0-4095) ) sheath_raw: (raw sheath LFE flow reading (0-4095) ) 83-00032-01 mini-OPC 9405 Page 22 of 39... -
Page 24: Pulse Calib
0-127 (startup setting for pmt_base) DIAGNOSTIC Menu pmt_base_pot_adj: (current PMT base pot setting) pmt_base_rd: (current PMT base reading) ERRORS Menu Push data knob to select Error Number. Scroll through errors. Currently occurring er- rors will have ! 83-00032-01 mini-OPC 9405 Page 23 of 39... -
Page 25: Manufacture Info Menu
”SS” is the second. As new files are created on a given day they are named with the corresponding date and time at which the acquisition started. Turning SD Card save to ”ON” will save the same format data files described below to the SD Card. 83-00032-01 mini-OPC 9405 Page 24 of 39... -
Page 26: Data File Format
#pmt_gain_pot=37 (PMT gain setting) #lsr_brt_pot=110 (Laser brightness pot setting) #lsr_gain_pot=127 (Laser gain pot setting) # (blank line) #cal_hg1=170,460 (high gain size cal, point 1 of 20) #cal_hg2=180,568 #cal_hg3=190,760 #cal_hg4=200,1032 #cal_hg5=210,1392 #cal_hg6=220,1792 #cal_hg7=250,4096 #cal_hg8=260,4704 #cal_hg9=280,5760 #cal_hg10=310,6784 83-00032-01 mini-OPC 9405 Page 25 of 39... - Page 27 Below the header data in each data file, the numeric data is stored in columns as follows: 1. YY/MM/DD: Year, Month, Day 2. HR:MN:SC: Hour, Minute, Second 3. opc_cntl: opc control (0=off, 1=on) 4. sample_sp: sample flow setpoint (lpm) 83-00032-01 mini-OPC 9405 Page 26 of 39...
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Page 28: Uav Reader Software
The UAV Reader software has been designed to allow multiple instruments to be con- nected simultaneously so data can be logged and instrument performance monitored all using one user interface. Each instrument has a ”main” tab (display) in the software as 83-00032-01 mini-OPC 9405 Page 27 of 39... - Page 29 There are four different data displays of the number size distribution data on the OPC main tab in Fig. 7. The rightmost tab displays the 84 bins of 1Hz raw count data versus bin number. This is a useful display for checking size calibrations. The total number 83-00032-01 mini-OPC 9405 Page 28 of 39...
- Page 30 The calibration coefficient values for the sheath and sample LFEs (quadratic), pressure (linear), and the PMT baseline are shown on the details tab. DO NOT change the calibration coefficients unless you have re-calibrated a 83-00032-01 mini-OPC 9405 Page 29 of 39...
- Page 31 Each time the reader software initiates a new mini-OPC run, the mini- OPC real time clock is synchronized with the clock on the computer run- ning the reader software. Be sure the computer clock is set to the desired time. 83-00032-01 mini-OPC 9405 Page 30 of 39...
- Page 32 - sets sheath flow setpoint (lpm) o_clk_sec - set clock seconds o_clk_min - set clock minutes o_clkhour - set clock hours o_clk_day - set clock day o_clk_mon - set clock month o_clkyear - set clock year 83-00032-01 mini-OPC 9405 Page 31 of 39...
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Page 33: External Serial Commands
RS232 port (e.g. NOT using the reader software): ”read” total_conc=0.0 sample_flw=0.00 (lpm) sheath_flw=0.00 (lpm) sheath_temp=23.9 (deg C) 83-00032-01 mini-OPC 9405 Page 32 of 39... - Page 34 (0=No SD Card, 1=SD Card Installed) opc_errs=0 ”settings” opc_cntl=0 (0=off, 1=on) samp_intrvl=1 (0=0.5 sec, 1=1 sec, 60=60 sec) sd_save=0 (0=off, 1=saving) auto_rpt=1 (auto_rpt readings, 0=off, 1=on) delimiter=0 (0=CRLF, 1=SPACE, 2=TAB) rpt_label=1 (0=off,1=on) ”calib” sample_c2=-1274.30 sample_c1=259.70 sample_c0=-33.30 sheath_c2=-5998.10 sheath_c1=1375.70 83-00032-01 mini-OPC 9405 Page 33 of 39...
- Page 35 7.6 External Serial Commands sheath_c0=-203.30 cal_temp=25.0 press_slop=3696.5 press_offs=-143.1 pmt_cal=2200 ”raw” sample_raw=326 (0-4095) sheath_raw=336 (0-4095) press_raw=2981 (0-4095) ”pulse_cal” cal_hg1=170,460 cal_hg2=180,568 cal_hg3=190,760 cal_hg4=200,1032 cal_hg5=210,1392 cal_hg6=220,1810 cal_hg7=250,4096 cal_hg8=260,4704 cal_hg9=280,5760 cal_hg10=310,6784 cal_hg11=330,7936 cal_hg12=340,8832 cal_hg13=380,11008 cal_hg14=390,11262 83-00032-01 mini-OPC 9405 Page 34 of 39...
- Page 36 ”dig_pots” - changing any of these will change pulse calibration pmt_gain_pot=45 (0-255) lsr_brt_pot=110 (0-127) lsr_gain_pot=127 (0-127) pmt_base_pot=44 (0-255) ”rtclck” clk_sec=44 83-00032-01 mini-OPC 9405 Page 35 of 39...
- Page 37 7.6 External Serial Commands clk_min=5 clk_hour=10 clk_day=16 clk_mon=6 clk_year=23 ”bin_lim” - read only bl1=155.0 bl85=3000.0 ”mfg_info” - read only ser_num=4 firmware=3.1 mfg_year=23 mfg_mon=6 mfg_day=16 83-00032-01 mini-OPC 9405 Page 36 of 39...
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Page 38: Maintenance
Remove the nozzle from the unit and flush with clean DI water and IPA. Sonicate for 2 hours submerged in water. Blow dry with filtered air after sonication and re-install. 83-00032-01 mini-OPC 9405 Page 37 of 39... -
Page 39: Mopc Errors
An example error number, converted from HEX to Binary might be: 000000010001, bit number 1 and 5 are both 1, indicating error 1: Bad Stored Value and er- ror 5: RH Sensor ERR. 83-00032-01 mini-OPC 9405 Page 38 of 39... -
Page 40: Troubleshooting
Laser failure Replace laser board Sample flow incorrect Calibrate LFE Sample nozzle clogged Clean nozzle Sizing incorrect Calibration shift Recalibrate Laser shift Replace laser board Sample flow out of range Check LFE calibration 83-00032-01 mini-OPC 9405 Page 39 of 39... - Page 41 Flash Memory, SD Card, 4 GB, Micro and Adapter 903100031A Memory Card Reader, USB 96-00004-01A IM2450 - foam filled (Pick n Pluck) - black case 96-00007-02A Shock Label, 7/8” x 2”, 25 G Sensitivity, Resettable POWER-OPTION POWER CORD (OPTION by Country/Voltage) 83-00032-01 mini-OPC 9405 Page 40 of 39...
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