3 DVP-120 Macurco™ Detection and Ventilation Control Panel User Instructions for 3M™ Macurco™ Detection and Ventilation Control Panel DVP-120. IMPORTANT: Keep these User Instructions for reference.
TABLE OF Contents 1 INTRODUCTION.............................................................................................................. 5 1.1 General Information............................................................................................. 5 1.2 Features............................................................................................................... 5 1.3 Specifications......................................................................................................
LIST OF FIGURES Figure 1‑1 System Wiring Diagram...................................................................................... 7 Figure 1‑2 DVP-120 Internal View........................................................................................ 7 Figure 2‑1 Sensor Interface Connector................................................................................. 8 Figure 2‑2 Relay Connector..................................................................................................
LIST OF WARNINGS W WARNING • Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result in sickness or death. • Use only for monitoring the gases which the sensors and equipment are designed to monitor.
1.5 Return information FOR MORE INFORMATION In United States, contact: Website: www.3M.com/OccSafety Technical Assistance: 1-800-237-9049 For other 3M products: 1-800-3M-HELPS or 1-651-737-6501 3M Occupational Health and Environmental Safety Division 3M Center, Building 0235-02-W-70 St. Paul, MN 55144-1000 2 Installation & Connection Gas detection and exhaust fan control is provided by a 3M™ Macurco™ DVP-120 System.
Typical coverage for CO and NO2 sensors is 5,000 sq. ft. (464.5 sq. m), 900 sq. ft. (83.6 sq. m) for combustible gas. Extra sensors may be needed near areas where people work, such as toll booths. 3M Macurco provides only the control panels and sensors. Fans, relays, and other devices are provided by the contractor. See the appropriate building code for the size of fans and air changes per unit of time.
2.4 Remote Sensor Connection Each remote sensor is connected by a four-wire connection – two wires for DC power and two wires for the 4 – 20mA loop connection. The sensors are connected to the control panel PCB with modular connectors, two sensors per connector. See Error! Reference source not found. for a view of a typical sensor connector. Refer to Table 2‑2 for wire size recommendations. Figure 2‑1 Sensor Interface Connector Wire gauge Maximum Run Length (ft.
2.5 Relay Connection All poles of the three relays are available at the modular connector R1 R2 R3 (see Figure 2‑2 for details). R1 R2 R3 is a 9-position variant of the high voltage modular connector used for power input. Each terminal can accommodate a wire size 12 to 24 AWG. Figure 2‑2 Relay Connector To install the wiring for the relays, disconnect the connector from the header on the PCB. Strip the insulation of each wire back approximately 1/4 in. (6.
2.7 Interfacing Macurco Sensors 3M™ Macurco™ Sensors with current loop outputs may be used with the DVP-120. See 3M.com/detection for information on compatible 3M™ Macurco™ Gas Transducers. W WARNING Immediately exit any environment that causes an alarm condition on the sensor. Failure to do so may result in sickness or death. Power connections to 3M™ Macurco™ Sensors used with the DVP-120 are polarity-insensitive, since a bridge rectifier is connected to the power input terminals.
3.1.2 User Interface The LCD display is used to show detailed information about the status of the control system and the configuration parameters to the user. The keypad (Figure 3-3) is used to select the information displayed and to enter the configuration parameters, which are stored in the DVP-120 memory. The keypad consists of the usual ten digit keys, four direction keys, plus a MENU key that is used to access the configuration menu and a HUSH key that will silence the audible alarm indicators.
If an external horn and/or strobe are connected and configured to signal an alarm condition, they will also sound when an alarm condition occurs, after a delay if that configuration option is used. When the HUSH key is pressed, the internal buzzer will be silenced for five (5) minutes. If the horn or strobe turn on delays have not finished then they will also be silenced. If the delays have finished the HUSH key must be held for three (3) seconds in order to silence the horn and strobe.
Each zone can be configured to control one, two or all three of the relays and the external horn and strobe if desired. When more than one zone is controlling a relay it only takes one zone to activate the relay, but all controlling zones must release the relay before it will turn off. Each of the relays, horn and strobe have independent turn on delays (to ignore short duration, transient gas signals) and turn off delays (to ensure minimum run times for fans that must run for internal cooling). 3.2.
3.3.2 Configure System Submenu The system configuration submenu provides entries to: - Set the time of day, 24 hour format - Set the day of the week, day 1 is Monday - Load Default Configuration - Change Password 3.3.2.1 Set Time of Day Figure 3-16 Set Time of Day This display example shows that the time is 22:55 (10:55 PM). The underlined characters indicate that the numeric keys can be used to set the current time of day.
The default configuration is: • Password • Sensors • Alarm Levels • Warning Levels • Alarm Signals • Warning Signals • Trouble Signals • Sensor Range • Relay 1 • Relay 2 • Relay 3 • Horn • Strobe • Zone1 • Zone2 • Zone3 • Group 1 in each zone • Group 2 in each zone • Group 3 in each zone • Rising Trip Levels • Falling Trip Levels 3.3.2.4 1234 Undefined CO = 200ppm, NO2 = 5.0ppm, EX = 10% LEL CO = 200ppm, NO2 = 5.
3.3.3.2 Sensor Type Figure 3-26 Sensor Type This display example shows that the sensor on channel 01 has been configured as a Carbon Monoxide sensor. The valid entries for the sensor type are: 1 Carbon Monoxide (CO) 2 Nitrogen Dioxide (NO2) 3 Combustible (EX) 0 None (---) Setting the sensor type to 0 (zero) will cause the display to ask if the user wants to DELETE the sensor.
3.3.4.2 Relay Mode Figure 3-31 Relay Mode This display example shows that relay 1 is configured to operate in the Normally Off mode. The relay modes are: 1 ALARM 2 Normally Off (default) 3 Normally On Relay mode 1 is a special case. This mode is only available on relay 1 and dedicates the relay to function as an alarm signal to a subsequent alarm or monitoring panel. This mode forces the relay to Normally Off mode with no turn on delay or minimum on time. See Section 3.1.
3.3.6 Configure Strobe Submenu The configuration parameters for the strobe are the same as those for relays. A strobe would not normally require a minimum on time but this parameter allows a more versatile configuration. 3.3.6.1 Strobe Summary Figure 3-38 Strobe Summary This display example shows that the strobe has been configured to operate Normally Off, with a turn on delay and no minimum on time. Notice that the strobe number, 5, is underlined.
Definitions: • Zone – Defines Sensor Input & Relay / Alarm Output • Group – Set of Sensors of same type and output within the same zone. • Average – Activation based upon an average of sensors in a group • Voting – Number of sensors needed to be above trip point to activate output • Quorum – Number of sensors need to vote, 1 = any sensor.
Sensors are included or removed from the group by entering the two-digit channel number. After a sensor is added or removed, the list will be re-sorted so it does not matter in which order the sensors are added or removed. The default is to include all sensors of the specified type. When the first digit of a sensor number is entered (a leading zero must be entered if the number is less than ten), the display will prompt to Add or Remove a sensor from the group.
3.3.8.2 Alarm Buzzer Signal Figure 3-54 Buzzer Alarm Signal This display example shows that the buzzer will signal an alarm condition with an intermittent signal. The signal definitions are: 1 Continuous 2 Intermittent, one second on at two second intervals (default) 3 Double tap, two beeps at 5 second intervals 4 Triple tap, three short beeps at 15 second intervals 5 Off, buzzer will not sound 3.3.8.
3.3.8.8 Warning Strobe Signal Figure 3-60 Strobe Warning Signal This display example shows that the strobe will not signal a warning condition. The signal definitions are: 1 Continuous 2 Intermittent, one second on at two second intervals 3 Double tap, two beeps at 5 second intervals 4 Triple tap, three short beeps at 15 second intervals 5 Off, strobe will not flash (default) 3.3.8.
4.1.1 Input Channel Trouble 4.1.1.1 No Sensor 4.1.1.2 Wrong Sensor Type Any time the POWER light is yellow, the first thing the technician should consider is that one of the input channels is in trouble. Reviewing the Sensor Status displays (using the up and down keys), should reveal which channel has a problem since the gas reading will be replaced with the word TROUBLE. A common source of a trouble condition is an input channel that is configured for a sensor that does not exist.
4.7 After a power failure After any power failure, the user should check the system clock. While system parameters are maintained in memory, the system clock is backed-up by a limited-capacity button cell battery. 4.8 Appendix A – Quick Set-up IMPORTANT: To properly and effectively program the system you must configure the Sensors, Relays, Zones and Signals. If the user has not entered any parameters, the system WILL NOT be monitoring the sensors or controlling the ventilation system.
Changing the configuration parameters requires the entry of a password before changes can be made. The default password is 1234. In many cases the parameter is entered as a string of numerals, but some parameters are selected by pressing a single key, e.g. pressing 1 selects Monday, 2 selects Tuesday, etc. 1.
Once the current password has been entered, the panel will prompt for the configuration parameter being changed. If the password has been lost: 1. Power down the DVP-120 2. Remove the Jumper Shorting Connector from the EXT header and place the Jumper Shorting Connector onto the top two pins of the SYS header. 3. Power up the DVP-120. The first display is the current password on the unit. 4. Remove the Jumper Shorting Connector from the SYS header and install back onto the two bottom pins of the EXT header.
Default - Minimum Runtime - 1 Minute Figure 4-14 Minimum on Time → Relay 2 - repeat for all relays, horn and strobe 4. Configure Zones Submenu 4.13 See Section 3.3.7 Configure Zones Submenu for more detail Definitions: Zone – Defines Sensor Input & Relay / Alarm Output Group – Set of Sensors of same type and output within the same zone.
↑ Average or Voting Mode Figure 4-20 Sensor Mode Selection → Configure Group 2 - repeat for up to three groups When multiple sensors are being monitored as a Group, the DVP-120 output can be based on either sensor Voting (default) or the Average of all sensor readings in the Group. When the configuration is Average, the gas concentrations from all sensors in the Group are averaged. • If the average is greater than or equal to the rising trip point, the zone outputs are activated.
3M Occupational Health and Environmental Safety Division 3M Center, Building 0235-02-W-70 St. Paul, MN 55144-1000 Printed in U.S.A. © 3M 2008-2011. All rights reserved. 3M and Macurco are trademarks of 3M Company, used under license in Canada. SLO-BLO is a trademark of Littelfuse, Inc.
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