DWYER INSTRUMENTS, INC.
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1. The Series RSM Room Status Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming The Series RSM can be configured to monitor positive or negative pressure in protected environments and hospital isolation rooms per CDC guidelines The RSM is a complete system that includes a backlit RGB LCD display with a graphic user interface which enables access to pressure security calibration and alarm setup The touch screen displays menus that guide the user through setup as well as setting up password protection Red and green LED s and a local audible alarm with time delay feature alert personnel to system status The RSM has a NEMA 1 IP20 rated fire retardant plastic for indoor applications True differential pressure is displayed with a resolution of 0 001 w c 1 0 INTRODUCTION Congratulations and thank you for purchasing Dwyer Instruments Room Status Monitor Series RSM Its ease of operation and durable construction will provide years of reliable service While the Series RSM is easy to operate it is advisable to read this guide carefully before use It is designed to help you take full advantage of the function and performance of the Series RSM 1 1 INTENDED USE The Series RSM is designed to monitor critical air environments providing room static pressure indication alarming and communication functions The applications include 1 Hospitals patien2. consists of the four 6 32 x 1 2 metal screws that connect the RSM metal base to the 4 x 4 metal plaster ring The plaster ring is grounded to the 4 x 4 electrical box by 2 mounting screws The 4 x 4 electrical box is grounded to the building earth ground Power leads and wiring should be 14 to 22 AWG braided wire 18 AWG braided wire is recommended for wiring J3 power connector to RSM For 120 240 VAC the hot wire connects to L and neutral to N See Section 13 0 Mounting Screws x 4 3 3 ATTACHING PRESSURE TUBING Typically a Room Pressure Snubber RPS is installed in the monitored room Attach pressure tubing as follows 1 Connect the 1 4 inch O D tubing from the RPS to the 4 x 4 electrical box for the RSM by pushing the 1 4 inch tube onto one end of the barbed male to male tube adaptor then push the silicone tube Supplied onto the other end Thread the tubes with installed adaptor through the conduit opening at the bottom of the electrical box 2 Next push the open end of the silicone tubing onto the RSM pressure tube header H1 port labeled Note The header is an Electro Pneumatic EP assembly indicates Positive pressure and indicates negative or reference pressure 3 For the most pressure stable operation an RPS installed in the reference pressure area is also recommended In this case install the RPS in a hallway or anteroom Attach the tube to the RSM in the same way as
3. 0 to 5 or 0 to 10 VDC outputs Voltage output pin 1 Current output pin 2 Common pin 3 Note No external excitation is required 1 Voutas Die vae F C Out d to 20 mA F ES e dr T Ela Current Output 1 VO Dios 01 109DC mee Receiver 2 C Oud HA mA 1 Comi HE Voltage Output 7 0 STARTUP AND OPERATION The RSM is designed with an easy to use touch screen interface In its normal state the Monitoring Screen displays the actual room static pressure The buttons at the bottom of the screen give you access to the functions that can be performed 7 0 1 MENU TREE See section 14 0 7 1 POWER UP Apply power to the RSM and observe the welcome screen and subsequent transition to the pressure monitor screen The actual room static pressure is shown as a number on the LCD and visually as a moving bar indicator operating between the preset alarm units The vertical bar is an indicator of the pressure Button Description Silence Shuts off Alarm Access to Setup Functions Resets the unit in Latched mode Negative Room 0 026 WC 0 02 0 04 Monitoring Screen 7 2 MAIN MENU SCREEN setup Unh setup Haar Callbratian Button Description Z y Setup password output engineering units and display averaging Set up high and low pressure limits to monitor a positive or negative room Setup latch alarm audible alarm door alarm input mute time out alarm delay and volum
4. 85 Green LED Buzzer sounds to indicate breach in room pressure protection Acknowledge Switch Press to silence buzzer Audible Alarm 9 1 OPERATION Under normal conditions the green LED remains on When an alarmed condition occurs i e room pressure falls outside preset range a signal is triggered by the RSM the green LED shuts off the red LED flashes and the audible alarm sounds The acknowledge button can be pressed to momentarily turn off the audible alarm and the red LED will continue to flash until the alarmed condition is corrected When the alarmed condition is corrected the annunciator will reset itself The green LED will turn on and the red LED and audible alarm will shut off Visual indication of normal room condition Visual indication of a breach in room pressure protection 10 0 MAINTENANCE The RSM is designed to operate in an indoor environment monitoring clean dry air 10 1 CLEANING Important Do not blow into the pressure tubing or fittings with mouth compressed air or canned air Such actions may permanently damage the pressure sensor CLEANING YOUR RSM Do not clean or wash down the RSM with industrial cleaners or solvents The housing may be wiped down with soap and water or isopropyl alcohol The LCD may only be cleaned with isopropyl alcohol Do not immerse unit CAUTION For 120 240 VAC Version Only Do not open or remove RSM cover flathead Ay screwdriver required with input powe
5. aster ring mounts to double gang electrical box Dimensions 8 H x 5 4 W x 1 8 D 20 3 H x 13 7 W x 4 1 D cm Weight approx 1 5 lbs 680 g Agency Approval CE Phone 219 879 8000 Fax 219 872 9057 www dwyer inst com e mail info dwyer inst com 1 2 RSM FUNCTION The Series RSM senses very low differential pressure using high accuracy capacitive sensor technology The pressure difference for these applications is the difference in static pressure between a critical environment room and its surrounding reference area usually a hallway or another room Maintaining and monitoring a static room pressure difference ensures that the critical environment room is either protected or isolated from a surrounding environment Protection strategy requires a net positive room static pressure difference while isolation requires a net negative static pressure difference The RSM can be programmed to monitor either positive or negative room static pressure The RSM low pressure sensing technology is coupled with multifunctional alarming and simple touch screen user interface with password security protection 2 0 PARTS LIST 2 1 RSM INCLUDED PARTS Quantity 1 RSM assembly Barbed Coupling Brass 1 4 inch Tube Silicone Inter Connect 6 32 x 1 2 Mounting Screws for RSM Base PD NM N 2 2 A 285 INCLUDED PARTS Quantity 1 Annunciator Assembly 3 0 MOUNTING AND WIRING To mount and install properly the following components a
6. button to initiate test sequence Press Test Alarm to test buzzer and visual Red LED Alarm Press Exit to return to Main Menu 7 7 CALIBRATION SCREEN Murte Times Our 90 Seca Alarm Belay 10 Seed Volume 4 Soave amp Exit 7 7 1 CALIBRATION To re zero the device disconnect the room pressure tube and lightly press or tap the Zero button Then apply a steady full scale pressure signal to the or room pressure tube or fitting and press or tap the Span button Reconnect the room pressure tube and calibration is complete Calibration must be within 45 of original calibration The original factory pressure calibration can be restored if desired by pushing the Restore Factory Setting button 8 0 PRESSURE MONITORING SCREENS The actual room static pressure is shown as a number on the LCD as well as a Moving Bar indicator operating between the preset pressure limits Normal room pressure conditions within the preset pressure limits are verified by a green colored screen When the door is opened under conditions within the preset pressure limits the screen turns to yellow Room static pressure outside of the preset limits is indicated by a Red screen after the alarms time delay expires 9 0 REMOTE ANNUNCIATOR A 285 The Remote Annunciator provides remote indication of room status Audible _ Green LED Alarm _ Red LED ass Acknowledge Switch A 2
7. creen d Set the time in seconds that the alarm can be silenced in the latched alarm mode before the alarm resumes This assumes that the room static pressure is still outside the normal or set operating limits The Mute Time Out can be set from 0 to 60 seconds e Setthe Alarm Delay in seconds from the time that the room pressure goes out of the preset limits until the alarm activates The alarm delay may be set from 0 to 60 seconds f Set the alarm volume or sound level Using the Up and Down keys the volume can be set at level 1 4 Level 4 alarm volume is the loudest and corresponds to a sound level of 85 dB at a distance of 4 inches 7 5 1 ALARM SETUP OPERATION Lightly press or tap button to select Yes or No for Latch Alarm Audible Alarm or Door Alarm Inputs Selected box background will change from clear to black when selected 7 5 2 MUTE TIME OUT ALARM DELAY Pressing or tapping the Mute Time Out or Alarm Delay box activates the Data Entry screen to set the time 7 6 SELF TEST SCREEN SELF TEST Product Model WEEHNENN Software Version NKXM Power Gn Self Test ES foe t Cancel Alarm Tesi 7 6 1 Self Test Operation This screen identifies the Product Model and Software Version User can also perform a Self Test of the RSM to verify that the data in memory hasn t been corrupted and also test the alarm to verify the sound level and alarm setup Press Power On Self Test
8. e Identifies product model and software version Verifies RSM operation and alarm level and setup Perform zero and span calibration Returns to monitoring screen 7 3 SETUP UNIT SCREEN SETUP UNIT Pastaerd j Preaeclan Analog Owiput Eng Unit Ed FA merwe en 20 ER ETA 7 3 1 SETUP UNIT OPERATION Press or tap button to select an output or engineering unit Selected button background will change from clear to black 7 3 2 ENTERING DATA 7 3 2 1 PASSWORD PROTECTION Lightly pressing or tapping the Yes button activates the Data Entry Screen see 7 3 3 to enter your password Enter password then press Enter Password Setting Screen will pop up Enter a new password and enter the new password again to confirm then press Save 7 3 2 2 DISPLAY AVERAGING Lightly pressing or tapping the Display Averaging box activates the Data Entry Screen see 7 3 3 Enter from 0 to 60 seconds Display averaging affects the analog output Increase the display averaging time to smooth out the pressure readings 7 3 3 DATA ENTRY SCREEN Enter letters or numbers by pressing each key in sequence until the desired character is displayed in the data entry box above the keypad Note The cursor will blink for one to two seconds then stop and display the character Erase any mistakes by using the Back Space key When finished entering data press the Enter key to ret
9. in step 2 except attach the tube to the port on the pressure tube header Tighten swivel fittings on the assembly if they become loose 4 0 ALARM RELAY OUTPUT The Single Pole Double Throw SPDT relay output can be used for remote signaling of alarm condition A form C contact rated at 1A is available Connect to J4 P1 and P4 See Section 13 0 4 1 OPTIONAL REMOTE ANNUNCIATOR WIRING Dwyer offers an optional Remote Annunciator Dwyer Part No A 285 In the figure below the remote annunciator connector is at left and the RSM connector is at right Connect P1 to P2 then connect P2 to A1 Located on Remote Annunciator finally connect P3 to A2 and P4 to A3 15 VDC Excitation Al Pa Annmunciator Trigger Ground A2 P3 Ground 15 VOC Trigger A3 P2 15 VDOC Excitation 4 2 AUDIBLE ALARM Alarm potentiometer can adjust from O to 85 dB Using a screwdriver rotate potentiometer on A 285 remote annunciator PC board clockwise to increase volume and counterclockwise to decrease volume Audible Alarm Potentiometer 5 0 DOOR STATUS SWITCH WIRING 5 1 WIRING Use normally open N O side of a contact switch The RSM will indicate the status of door position A contact closure indicates that the door is closed This is a low voltage circuit 5 VDC Attach to connection J6 See Section 13 0 6 0 ELECTRICAL INSTALLATION 6 1 ANALOG OUTPUT The RSM can be configured to have current 4 to 20 mA or voltage
10. mon S E D Single Gang 2 x 4 Electrical Box A 285 Door Switch SPDT or SPST NO 24 VAC or 120 220 VAC Protected Circuit Soft Pressure Tubing 1 4 O D 14 0 MENU TREE Negative Room 0 026 WC 0 02 0 04 Silence Ravel Copyright 2009 Dwyer Instruments Inc SETUP UNIT ees De EI E Dr rome ed Tera no HEN _ SETUP Eg SETUP ROOM fea Mio lame sam EEN Ho SETUP ALARM ri ER e SAVE amp EXIT Producr Moda ee CALIBRATION Negative Ror CALIBRATION pee me ER Apply Fall Scale FT Pretrurs NE Rechore Factory Setting Printed in U S A 4 09 FR R1 443663 00 Rev 1 DWYER INSTRUMENTS INC Phone 219 879 8000 www dwyer inst com P O BOX 373 e MICHIGAN CITY INDIANA 46361 U S A Fax 219 872 9057 e mail info dwyer inst com
11. r applied unless performed by a licensed electrician Hazardous Live voltage is present at connector J3 when power is applied Please observe the warning symbol N near the J3 power connector 11 0 AGENCY ELECTRICAL STANDARDS This device falls into CSA Pollution Degree 2 for PCB insulation and CSA Installation Category 2 The RSM meets the following requirements CSA Standard C22 2 No 0 M 91 General Requirements Canadian electrical code Part 1 CAN CSA C22 2 No 0 4 04 Bonding of Electrical Equipment CAN CSA C22 2 No 61010 1 04 Safety requirements for electrical equipment for measurement control and laboratory Use Part 1 General Requirements ANSI UL61010 1 Second Edition Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General Requirements MAINTENANCE Upon final installation of the Series RSM Room Status Monitor no routine maintenance is required A periodic check of system calibration is recommended The Series RSM is not field serviceable and should be returned if repair is needed field repair should not be attempted and may void warranty Be sure to include a brief description of the problem plus any relevant application notes Contact customer service to receive a return goods authorization number before shipping 13 0 Location of Components and Accessories RSM Inside View V Out 0 5 0 10 Analog Output Pe VDC C Out 4 20 mA Com
12. re reduired 3 1 NOT INCLUDED RSM PARTS Quantity 1 Double Gang Metal Electrical Box with Grounding Stud 1 4x4 inch Metal Plaster Ring 1 Door Switch SPDT or SPST N O as needed 3 2 NOT INCLUDED A 285 PARTS Quantity 1 Single Gang Electrical Box Note In the following wiring sections abbreviations are used e g J1 P3 Please see section 13 0 for complete wiring diagrams with abbreviations 3 1 MOUNTING CAUTION For 120 240 VAC Version Only Do not open or remove RSM cover flathead screwdriver required with input power applied unless performed by a licensed electrician Hazardous Live voltage is present at connector J3 when power is applied Please observe the warning symbol A near the J3 power connector The RSM is designed to be mounted on a standard double gang metal electrical box using a 4 x 4 inch plaster ring adaptor Remove the RSM cover and mount the baseplate to the plaster ring adaptor using four 6 32 1 2 long mounting screws Note The plaster ring external mounting face needs to be positioned flush to recessed relative to the surface of the wall Also note the orientation of the 4 mounting screws in the plaster ring as the plaster ring is rotated 90 from conventional mounting 3 2 WIRING ELECTRICAL BOX ROUGH IN Pre wire electrical box with power 24 VAC or 120 240 VAC depending on RSM model and provide grounding to the electrical box and plaster ring adaptor The safety ground path
13. t isolation and protection rooms operating suites intensive care and emergency rooms 2 Pharmaceutical semiconductor precision manufacturing and clean rooms 3 Laboratories medical research and BSLs Bio Safety Labs radiation toxic metals and chemicals DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46361 U S A Series RSM Room Status Monitor Specifications Installation and Operating Instructions Bulletin P 2 RSM 5 13 32 5 8 137 16 41 66 p 2 5 32 55 12 20320 eee _LED ji 209 INDICATORS TUBING HEADER PORT ROOM STATUS MONITOR A 285 REMOTE ANNUNCIATOR SPECIFICATIONS Service Air or nonconductive nonexplosive gases Accuracy 0 5 F S Operating Temperature Limits 32 to 120 F 0 to 50 C Operating Humidity Limits 5 to 95 Relative humidity non condensing Altitude 2000 meters max Thermal Effects 0 03 F S F 0 05 F S C Overpressure 1 psi Supply Voltage Order Code A 24 VAC 18 32 VAC 50 60 Hz Order Code B 120 VAC 85 265 VAC 50 60 Hz Mains supply voltage fluctuations up to 10 Power Consumption Voltage output 5 W Output Selectable 4 20 mA 2 wire 0 5 VDC 3 wire or 0 10 VDC 3 wire Loop Resistance 4 20mA output 0 510 Q Electrical Connection Removable terminal block Pressure Fittings Barbed fittings for 1 4 I D tubing Housing Fire retardant plastic NEMA 1 IP20 rated for indoor applications Mounting 4 x 4 pl
14. urn to SETUP UNIT screen Example Enter number 3 press or tap 3 DEF key once Enter the letter T press or tap the 8 STU key three times in succession Note Use the eraser end of a pencil or back end of a pen to press or tap box on screen to increase accuracy of inputs 7 4 SETUP ROOM SCREEN Negative Room Negative Low Megative High Save amp Exit 7 4 1 SETUP ROOM OPERATION Monitor either protective positive room static pressure or isolating negative room static pressure 7 4 2 ENTERING DATA Press lightly or tap Positive Room or Negative Room button Background of selection will change from clear to black then enter high and low limits as follows Simply press lightly or tap either the Positive Room or Negative Room box to activate the Data Entry Screen and proceed to enter the low and high limits of the room pressure to be monitored Save and Exit 7 5 ALARM SETUP SCREEN From this screen the user can access the following a Latched Alarm requires the pressure to return to normal and the alarm to be acknowledged before the alarm can be silenced and reset b Enable the audible alarm by selecting Yes or use visual only alarm by selecting No c Provide a door open pre alarm visual indication When activated the door status open condition is indicated by the touch screen display turning from green to yellow and door open indicated on the monitoring s
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