TSI Instruments SUREFLOW 8635-M Operation And Service Manual Download

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SUREFLOW

™

ROOM PRESSURE MONITOR

MODELS 8635-M

OPERATION AND SERVICE MANUAL

P/N 1980272, REVISION E

FEBRUARY 2013

Summary of Contents for SUREFLOW 8635-M

Page 1: ...SUREFLOW ROOM PRESSURE MONITOR MODELS 8635 M OPERATION AND SERVICE MANUAL P N 1980272 REVISION E FEBRUARY 2013...

Page 2: ......

Page 3: ...RY 2013 U S AND CANADA OTHER COUNTRIES Sales Customer Service Sales Customer Service 800 874 2811 651 490 2811 001 651 490 2811 Fax Fax 651 490 3824 001 651 490 3824 SHIP MAIL TO E MAIL TSI Incorporat...

Page 4: ...ENT AND EXCLUDES CLAIMS OF CONTRIBUTORY OR INDUCED INFRINGEMENTS BUYER S EXCLUSIVE REMEDY SHALL BE THE RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR AND TEAR OR AT SELLER S OPTION REPLAC...

Page 5: ...the SureFlow unit functions and how to interface with the device This section should be read by users facilities staff and anyone who requires a basic understanding of how the SureFlow monitor operat...

Page 6: ...iv This page intentionally left blank...

Page 7: ...d is the first level of containment and the laboratory itself is the second level of containment Room pressure or pressure differential is created when one space hallway is at a different pressure tha...

Page 8: ...providing instant information on the room pressure Useful User Information The DIM has a green light and red light to indicate room pressure status The green light is on when the room has proper room...

Page 9: ...eration green light is on the display continuously scrolls information about room pressure and other variables programmed flow air changes per hour etc The variables that scroll depend on the options...

Page 10: ...ee MUTE TIMEOUT When the mute period ends the audible alarm turns back on if the alarm condition is still present NOTE The user can program the audible alarm to be permanently turned off see AUDIBLE A...

Page 11: ...nches H2O When the room pressure drops below 0 001 inches H2O gets closer to zero the audible and visual alarms activate The alarms turn off when set to unlatched when the unit returns to the safe ran...

Page 12: ...it 8635 M ____ Software revision level Facility where unit is installed First two items that scroll when TEST key is pressed Due to the different SureFlow models available the above information is nee...

Page 13: ...another etc The menu items and all related information is listed in table format and includes programming name description of menu of item range of programmable values and how the unit shipped from t...

Page 14: ...m or configure the unit to fit your particular application Programming the instrument will change how the unit functions so thoroughly review the items to be changed Figure 4 Programming Keys MENU Key...

Page 15: ...ressing the arrow key will scroll through the values faster than if arrow key is pressed and released Keystroke Procedure The keystroke operation is consistent for all menus The sequence of keystrokes...

Page 16: ...essure is shown in this case PRESSURE 00085 H2O Press the MENU key to gain access to the menus MENU The first 2 menu choices are displayed ALARM CONFIGURE Press the SELECT key to access the ALARM menu...

Page 17: ...nd the menu item on the bottom line goes to step 3 ALARM HIGH ALARM WARNING If the MENU key was pressed instead of the SELECT key the new data would not have been saved and the SureFlow monitor would...

Page 18: ...n provides the following information Complete list of menu and all menu items Gives the menu or programming name Defines each menu item s function what it does how it does it etc Gives the range of va...

Page 19: ...FLO STA TYPE TOP VELOCITY ROOM VOLUME ACCESS CODE CALIBRATION SENSOR ZERO SENSOR SPAN FLOW ZERO ELEVATION ACCESS CODE INTERFACE NET PROTOCOL NET ADDRESS OUTPUT RANGE OUTPUT SIG ACCESS CODE DIAGNOSTICS...

Page 20: ...pins 11 and 12 is open or the RS 485 communications sends a command OFF 0 to 0 19500 H2O 0 to 0 19500 H2O OFF REMOTE OR SECOND LOW ALARM REM LOW ALM The REM LOW ALM item sets a remote or second low pr...

Page 21: ...cally resets the alarms when the unit reaches the safe pressure range LATCHED requires the staff to press the RESET key after the unit returns to the safe pressure range The ALARM RESET affects the au...

Page 22: ...and ALARM DELAY are turned off Set the remote alarms equal to the standard alarms if the same alarms are required delay would just change 20 to 600 SECONDS 20 SECONDS MUTE TIMEOUT MUTE TIMEOUT The MU...

Page 23: ...remote can be programmed for positive or negative pressure However both the low and high alarm must be set either positive or negative The DIM does not allow one positive alarm and one negative alarm...

Page 24: ...ssure sensor high alarm Flow station minimum flow Data error 9 The low and high alarms are absolute values The chart below shows how the values must be programmed in order to operate correctly 0 2 inc...

Page 25: ...ct area if programmed the display will automatically scroll the actual flow as part of the display sequence If a zero value is entered the flow value will not scroll on the display If the DIM displays...

Page 26: ...the ROOM VOLUME and the input from the air flow station If no flow station is installed a zero value should be entered 0 to 20 000 cubic feet 0 to 550 cubic meters The DIM does not compute volume The...

Page 27: ...ollowing menu item listing NONE Unit is factory calibrated No initial adjustment should be necessary FLOW ZERO FLOW ZERO The FLOW ZERO item is used to establish the flow station zero flow point A zero...

Page 28: ...S CODE item prevents unauthorized access to a menu If the ACCESS CODE is ON a code is required before the menu can be entered Conversely if the ACCESS CODE is OFF no code is required to enter the menu...

Page 29: ...will initiate a change RS 485 communications allows the user access to all menu items except calibration items The RS 485 network can initiate a change at any time 1 to 247 1 OUTPUT RANGE OUTPUT RANG...

Page 30: ...ACCESS CODE item selects whether an access code pass code is required to enter the menu The ACCESS CODE item prevents unauthorized access to a menu If the ACCESS CODE is ON a code is required before...

Page 31: ...the door middle of door edge of door etc A thermal air velocity meter is needed to make the comparison measurement Normally the velocity is checked at the crack under the doorway or the door is opene...

Page 32: ...can only occur at very low pressures so slightly changing the balance should eliminate the problem Perform a smoke test to determine pressure direction Select SENSOR SPAN item Position thermal air vel...

Page 33: ...cutoff flow in duct Flow station must have no flow going past sensor Enter calibration menu Access code is required Select FLOW ZERO to take flow zero Press SELECT key Flow zero procedure which takes...

Page 34: ...e white and free of accumulated debris Figure 7 Pressure sensor door slid open Periodically inspect the other system components for proper performance and physical signs of excessive wear Pressure Sen...

Page 35: ...configuration problems or interaction problems with the HVAC system The hardware test described in this section determines that all TSI mechanical components are functioning correctly The hardware te...

Page 36: ...T DIM Press TEST key to verify Digital Interface Module DIM electronics are functioning correctly At the end of the self test the display will show SELF TEST PASSED if all DIM electronics are good If...

Page 37: ...ts normal state Sensor Input Menu item SENSOR INPUT The SENSOR INPUT item is used to verify that the DIM is receiving a signal from the sensor When this item is entered a voltage will be indicated on...

Page 38: ...put Menu Item FLOW INPUT The FLOW INPUT item is used to read the input from the flow station When this item is entered a voltage will be indicated on the display The exact voltage displayed is relativ...

Page 39: ...elects whether an access code pass code is required to enter the menu The ACCESS CODE item prevents unauthorized access to a menu If the ACCESS CODE is ON code is required before the menu can be enter...

Page 40: ...Verify circuit breaker is on Verify transformer primary measures 110 VAC Verify transformer secondary measures 24 to 30 VAC If proper voltage is found between pins 1 and 2 of the DIM all wiring has b...

Page 41: ...be unique for each DIM Data sent to DIM may be in form that the SureFlow monitor cannot recognize DIM displays opposite pressure signal Sensor direction is incorrect Pressure sensor must have dip swi...

Page 42: ...wildly fluctuating Exhaust or supply system unstable Supply or exhaust air is affecting the sensor Check supply and exhaust flow for stability Verify reference pressure is not fluctuating Check locati...

Page 43: ...150 VDC 250 VAC Maximum switch load 10 mA 5 VDC Contacts close in alarm condition Analog Output Type 0 to 10 VDC or 4 to 20 mA Range High 0 100 to 0 100 inches H2O Low 0 0100 to 0 0100 inches H2O Reso...

Page 44: ...38 Appendix A This page intentionally left blank...

Page 45: ...put When input is closed these software items are enabled REMOTE LOW ALARM REMOTE HIGH ALARM and DOOR DELAY 13 14 Output Low alarm relay N O closes in low alarm condition See menu items LOW ALARM REMO...

Page 46: ...40 Appendix B...

Page 47: ...n an access code is required pressing the following key sequence will provide access to the required menu Key Alarm Configure Calibration Interface Diagnostics 1 TEST EMERGENCY AUX TEST TEST 2 TEST ME...

Page 48: ...42 Appendix C This page intentionally left blank...

Page 49: ...more information USA Tel 1 800 874 2811 UK Tel 44 149 4 459200 France Tel 33 4 91 11 87 64 Germany Tel 49 241 523030 India Tel 91 80 67877200 China Tel 86 10 8251 6588 Singapore Tel 65 6595 6388 P N 1...

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