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Series RSMC StabiliSENSE

 Critical Room Status Monitor 

Specifications - Installation and Operating Instructions

Bulletin P-RSMC

The 

Series RSMC StabiliSENSE™ Critical Room Status Monitor

 is designed for 

critical low differential pressure applications that require stringent pressure monitoring 

and alarming. It can be configured to monitor positive or negative pressure in clean 

rooms,  hospital  isolation  rooms,  school  nurses  offices,  laboratories,  and  vivariums. 

The RSMC is a complete system with a touchscreen graphical user interface which 

enables access to pressure, humidity, temperature, air change, security, door status, 

calibration, and alarm setup. The graphical display color changes allow a clear 

determination of when the parameters are operating within the acceptable range 

(green), caution range (yellow), or have gone outside the acceptable operating range 

(red). The RSMC Stabili

SENSE

™ critical room status monitor comes standard with 

BACnet MS/TP and Modbus

®

 RTU communications.

1.0 INTRODUCTION

The Dwyer

®

 Series RSMC monitors room parameters in a variety of applications. Its 

ease of installation and intuitive setup, provides a great user experience. While the 

RSMC is easy to operate, it is advisable to read this manual carefully before use. It is 

designed to allow the user to take full advantage of the function and performance of 

the Series RSMC. 

1.1 INTENDED USE

The  Series  RSMC  is  designed  to  monitor  critical  air  environments,  provide  room 

pressure  indication  and  3  additional  user-defined  parameters  user-selectable  as 

temperature, relative humidity, air change per hour (ACH), door status, and/or additional 

pressure measurements. The RSMC Series has alarming and data communication 

over Modbus

®

 RTU or BACnet MS/TP. The applications of the RSMC include: 

  1.  Hospitals - patient isolation and protection rooms, operating suites, intensive 

      care, and emergency rooms.

  2.  Precision manufacturing - pharmaceutical, semiconductor, and clean rooms. 

  3.  Laboratories - medical research, bio-safety labs (BSLs), and vivariums. 

1.2 RSMC FUNCTION

The Series RSMC senses low differential pressure using a capacitive cell pressure 

sensor. The RSMC senses the differential pressure between a protected environment, 

such as a clean room or isolation room, and an area outside the room. Maintaining 

a constant differential pressure between the two spaces is critical in ensuring the 

room  is  protected  by  ingress  for  the  outer  room  or  vice-versa.  The  RSMC  can  be 

programmed  to  monitor  either  positive  or  negative  room  static  pressure  in  1  to  3 

locations. In total, it can monitor up to 4 parameters: built-in differential pressure, up 

to 2 additional differential pressures as inputs, relative humidity input, air change per 

hour (ACH) input, and door status. The touchscreen user interface allows for easy 

setup of the multi-parameter alarming and 2 levels of security protection. The BACnet 

communications allows the device to communicate with other BACnet devices, such 

as sensors, and allows the supervisory system to change configuration setups and 

monitor alarm conditions.

SPECIFICATIONS

Service:

 Air.

Measurement Technology: 

Capacitance cell pressure sensor.

Wetted Materials:

 Front: PMMA window with IP65 rating; Back housing: Fire-proof 

ABS+PC UL 94 V-0.

Pressure Limits:

 1.5 psig.

Accuracy: 

±0.25% RSS (includes non-linearity: ±0.24% BFSL, hysteresis: ±0.05% 

and non-repeatability: ±0.05%), or ±0.5% RSS (includes non-linearity: ±0.49% 

BFSL, hysteresis: ±0.05% and non-repeatability: ±0.05%).

Process Connection: 

Barbed, fits 1/8˝ and 3/16˝ (3 mm and 5 mm) ID rubber or 

vinyl tubing.

Inputs:

 Two (2) user-selectable 4-20 mA, 0-5 VDC, or 0-10 VDC; USB type C used 

for cloning programming; One (1) digital input for door status. 

Outputs:

 One (1) digital output (DO) rated 5 A @ 30 VDC; One (1) 4-20 mA or  

0-10 V (user selectable) corresponding to internal pressure or retransmission of any 

input.

Ambient Temperature Limits:

 32 to 122°F (0 to 50°C).

Power Requirements:

 24 VAC/VDC.

Selectable Pressure Units: 

Pa, kPa, cm w.c., mm w.c., and in w.c. 

Temperature Units: 

°F and °C.

Zero and Span Adjustments: 

Adjustable via touchscreen. 

Power Consumption:

 3.6 W @ 24 VDC.

Electrical Connection:

 Removable terminal block.

Display:

 4.3 ̋ (10.9 cm) color TFT LCD, dimmable; 480 x 272 resolution.

Communications:

 Modbus

®

 RTU, BACnet MS/TP.

Audible Alarm:

 69.1 dB 10 cm from display. 

Weight:

 1.05 lb (0.476 kg).

Compliance:

 BTL, CE. 

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219-879-8000
Fax: 219-872-9057

www.dwyer-inst.com
e-mail: info@dwyermail.com

9-15/64 [234.50]

5-3/8

[136.60]

1-23/32

[43.70]

8-15/64 [209.15]

4-7/32

[107.16]

1-17/64

[32.15]

RSMC with standard plastic bezel

Summary of Contents for StabiliSENSE RSMC Series

Page 1: ...ironment such as a clean room or isolation room and an area outside the room Maintaining a constant differential pressure between the two spaces is critical in ensuring the room is protected by ingress for the outer room or vice versa The RSMC can be programmed to monitor either positive or negative room static pressure in 1 to 3 locations In total it can monitor up to 4 parameters built in differ...

Page 2: ...touchscreen operation when changes in room conditions are needed when additional information is desired or if alarms need to be acknowledged A few of the key elements of the screen are described and shown below The RSMC provides visual representation where each of the parameters are either in normal green within the caution stage yellow in the alarm state red and in cleaning mode blue The caution ...

Page 3: ... and 2 analog or BACnet inputs to be select by the user 2 2 Rooms Monitoring 4 parameters 1 built in differential pressure 2 analog or BACnet inputs to be select by the user and 2 binary contacts 3 3 Rooms Monitoring 6 parameters 1 built in differential pressure 2 analog or BACnet inputs to be select by the user and 3 binary contacts wired in series Examples of 1 room 2 room and 3 room setups are ...

Page 4: ...ter For example 0 VDC corresponds to the minimum range of the sensor and 5 VDC corresponds to the maximum range of the sensor In the Measurement box the user can define the type of measurement temperature humidity etc and the desired engineering units to be displayed If ACH Air Changes per Hour is selected duct dimensions need to be entered when the input type is selected as volumetric flow When u...

Page 5: ...try and personnel access Return to Normal delay is the opposite when a parameter value goes out of alarm and now falls within normal range the audible visual and output alarm conditions will persist for this period of time or until the alarm condition is cleared Alarm Deadband is a value that is added or subtracted to a limit when determining if a parameter has returned to a normal state For examp...

Page 6: ...the sensor assigned to the display position to the right next to Select Sensor If the BACnet option is selected the user has to input the BACnet address and sensor type of the remote sensor After completing the room settings the user can select each parameter from each room in order to use it at the alarm configuration or output configuration Each parameter is named with the room name and the sele...

Page 7: ... the output value and the user can also change the state 6 0 MAINTENANCE The Maintenance menu provides several functions that help ensure the RSMC is configured and operating accurately with proper parameters To access the Maintenance menu from the home screen press the Settings icon in the top right corner and select the Maintenance button Within the maintenance menu the following maintenance fun...

Page 8: ...rom the home screen press the Settings icon in the top right corner From the Maintenance menu select Reset A factory reset may help establish a baseline of original functionality from which to build the specific configuration for a given application New configurations can then be added by either touchscreen entry Copy from USB or over the BACnet network Selecting NO will cause the RSMC unit to rem...

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