Related Manuals for Setra Systems SRIM1
Summary of Contents for Setra Systems SRIM1
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Page 1: Operating Instructions
SRIM Operating Instructions Setra Systems, Inc. 159 Swanson Road, Boxborough, MA 01719 800.257.3872 • www.setra.com... - Page 2 Table of Contents 1.0 Introduction ........................3 Intended use ......................4 2.0 Mechanical installation ....................4 3.0 Electrical installation ..................... 5 Plumbing and wiring to the electrical box (rough in) ..........6 4.0 Operation ........................10 5.0 Calibration and adjustment of zero output ..............20 6.0 Maintenance &...
- Page 3 1.0 Introduction The SRIM1 has a non backlit LCD display and alarms on pressure. It is capable of true 2 wire 4-20 mA loop powered operation. The SRIM2 is a 3 wire has a 3 color backlight, a digital input for a door switch, 2 analog inputs for temperature and humidity and 1 relay output for remote alarm indication.
- Page 4 1. 1 Intended use The Setra SRIM Room Isolation Pressure Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. The SRIM can be configured to monitor positive, negative or neutral pressures in protected environments. The SRIM is a complete system that includes a 2 line LCD display with large characters for the pressure, temperature and humidity indication and room status.
- Page 5 (avoid high vibration), a stable surface near the ductwork or inside a panel. Fig. 3-1 Wall (flush) mount housing dimensions, front view, SRIM1,2 Fig. 3-2 SRIM2 wall (flush) mount housing rear view of pressure fittings...
- Page 6 Unpack the product box. Do not remove the protective film on the front panel until after installation to prevent scratching of the display during the installation process. Remove parts and place them on flat surface. Apply pressure on the side of the box to open the snap fit or use an allen wrench or paper clip as shown See Figure 1-2.
- Page 7 +EXC COM +OUT Fig. 3-5 Wiring diagram SRIM1 and back of unit Rotating pressure fittings, can point up or down, SRIM2 only. +(High) Pressure - Pressure Pull wires through the openings in the bottom of the base. 1/2” conduit or PG9 fitting openings are provided.
- Page 8 Table 1 wiring SRIM2 Terminal Function +24 VDC supply Power supply COM and analog out COM VOUT Analog output + (VDC mode) Analog output (mA output mode) Door status, wire to one side of NO contact D_COM Door status, wire to other side of NO contact Not used + output of temperature sensor (if used) Common output of temperature and humidity sensors...
- Page 9 Fig. 3-7 Wiring, SRIM2 Note: Relay 1 (RLY1) is a SPDT relay that can be used to signal a remote unit of an alarm condition. The relay contacts are rated for 3 A, 120 VAC.
- Page 10 The SRIM1 has a non backlit LCD display and alarms on pressure. The SRIM2 has a 3 color backlight, a digital input for a door switch, 2 analog inputs for temperature and humidity and 1 relay output for remote alarm indication.
- Page 11 Apply 24 VDC power. The display goes through the initialization sequence, the LCD screens will the displayed in the following order. • Software version information. • Product pressure range, in “WC or Pascal. • Analog output mode, 4-20, 0-5 or 0-10 VDC. Unit in the normal state, line 1 is the indicated differential pressure and units.
- Page 12 Menu operation Menu key – Provides access to the menu structure Down arrow key – Allows selection of numerical parameters. Pushing the down arrow cause the digits to move upwards in 1 digit count and will wrap around. The cursor below the indicated item in the current menu item indicates that this is the digit that is being changed.
- Page 13 MUTE TIMEOUT Sets the time delay (sec) between when the buzzer mute button is pressed and when it will re-sound if the pressure is still out of range ALARM ENABLE Enables the audible and visual alarms indicators BUZZER ENABLE Enables the local audible buzzer. The fixed volume is approximately 85 dBA as measured at 4-inch distance OUTPUT MODE Sets the analog output mode, 4-20 ma, 0-5 VDC or 0-10...
- Page 14 PASSWORD ADMIN Enables or disables the 4 digit numeric password, use backdoor password 0159, if the password is lost ZERO CALIBRATION “Tares” out any 0 pressure error. This must be done with 0 pressure applied. SPAN CALIBRATION “Tares” out any Span pressure error. This must be done with the +Full Range (FR) pressure applied.
- Page 15 The Temperature and Humidity functions and alarming are only available on the SRIM2. TEMPERATURE FUNC Temperature Function, pressing the enter key will drop down into the setup of the external sensor for AN1 (Analog input 1). Press menu button to move between items in this menu.
- Page 16 T_ALARM L LIMIT Set the low temperature alarm limit in Degrees C or Degrees F T_ALARM H LIMIT Set the high temperature alarm limit in Degrees C or Degrees F T_ALARM ENABLE Enable or disable the Temperature alarms by using the down arrow to toggle between selections, Press Return key to accept HUMIDITY FUNC...
- Page 17 H_Max Vin Input the analog output of the humidity sensor corresponding H_Max H Input the maximum humidity that corresponds to the max. analog H_ALARM ENABLE Enable or disable the Humidity alarms by using the down arrow to toggle between selections, Press Return key to accept selection RETURN Returns from the configuration mode to the normal...
- Page 18 Example 1: Output mode setting To enter the menu, press the Menu key. Continue pressing until the display indicates output mode. 4-20 mA is the default output mode, if you want to change to 0-5 or 0-10 press the down arrow and press the return key to select. The display will blink 2X to confirm the setting change.
- Page 19 Example 3: Calibration Remove the pressure ports or shut of fans to the room and open the door so that zero differential pressure is applied to the monitor. Select menu items ZERO CALIBRATION, the display shows the current pressure value, press the Enter key.
- Page 20 No representative or person is authorized to give any warranty other than as set out above or to assume for SETRA any other liability in connection with the sale of its products. For all CE technical questions, contact Setra Systems, USA. EU customers may contact our EU representative Hengstler GmbH, Uhlandstr 49, 78554 Aldingen, Germany (Tel: +49-7424-890; Fax: +49-7424-89500).
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