Macurco™ M Nitrogen N Dioxide Deteector, Conttroller and TTransduceer TX-6-ND User U Instrucctions Important: Keep thesse User Instructions for reference 1
TABLE OF CONTENTS GENERAL SAFETY INFORMATION Intended Use List of Warnings and Cautions USE INSTRUCTIONS AND LIMITATIONS Use For Do Not Use For General Description Features Specifications INSTALLATION AND OPERATING INSTRUCTIONS Location Installation Garage diagram 4-20 mA Output diagram Multiple Device diagram Alarm Control Panel diagram DVP-120 Control Panel diagram Alternate Alarm Panel Power Up Operation Default – Factory Settings Display setting Buzzer setting Alarm Relay setting Alarm Relay Configurati
GENERAL SAFETY INFORMATION Intended Use The Macurco TX-6-ND is a low voltage, dual relay Toxic Gas (TX) detector, controller and transducer for Nitrogen Dioxide (NO2). The TX-6-ND has selectable 4-20 mA output, buzzer and digital display options.
USE INSTRUCTIONS AND LIMITATIONS ! 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.
Specifications Power: 3 W (max) from 12 to 24 VAC or 12 to 32 VDC Current @ 24 VDC: 75 mA in alarm (two relays), 50 mA (fan relay only) and 23 mA stand by Shipping Weight: 1 pound (0.45 kg) Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 10.2 X 5.4 cm) Color: Dark gray Connections: plugs/terminals Mounting box: (not included) 4x4 electric Fan relay: 5 A, 240 VAC, pilot duty, SPDT Fan relay actuation: selectable at OFF, 0.2, 0.5, 0.7, 1.0, 1.2, 1.5, 1.7, 2.0, 2.2, 2.5 (default), 2.7, 3.0, 3.2, 3.5, 3.
Installation 1. The TX-6-ND mounts on a 4” square (or 4x4) electrical box supplied by the contractor. Do not mount the TX-6-ND inside another box, unless it has good air flow through it. 2. Connect the TX-6-ND to Class 2 power supply only. It is suggested to use a separate transformer for powering the unit or units because of possible interference’s from other devices on the same power supply. 3. Connect the TX-6-ND to the control cables with terminal plugs.
p Power Up The TX-6--ND steps thrrough an interrnal self-test cycle for the first 1 minutee that it is pow wered. The unnit will execute thhe test cycle any time power is droppeed and reappplied (i.e. pow wer failure). D During the seelf-test cycle the unit will display the Firmw ware Version number, n thenn count down from 60 to 0 and finally ggo into normal opperation. The Fan and Alarrm relay will be b activated ffor the powerr-up cycle unless the “Pow wer Up Test” (PUt) option is OFF.
Operation 1. With the display function turned “On”, the TX-6-ND will show the current concentration of NO2 ppm or “0.0” (zero) in clean air. When the NO2 concentration reaches the Fan Relay setting (1.0ppm, for example) the display will flash back and forth between “FAn” and “1.0”. With the display function turned ”Off”, the display does not show the gas concentration, but will show “FAn” as long as the fan relay is activated. 2.
Selecting Power Up Test Option – “PUt” To select the Power Up Test Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. Then push the Next button to get to the second selection “PUt” or Power Up Test setting. Push Enter. If the test is “On” push Next to turn it “OFF” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to “PUt” in the Con menu.
Selecting Fan Relay Run Time – “Frr” To select the Fan Minimum Runtime setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The ninth selection is the “Frr” or Fan Minimum Run Time. Push Next eight times to get to “Frr” then Enter.
NOTE: For trouble codes over 080 the display will alternate between t_1 and t00 for t100 and between t_2 and t00 for t200. If the error mode repeats frequently, check for continuous power and proper voltage. If power is not the problem and a unit has repeating error conditions, it may need to be returned to Macurco for service, per these User Instructions. If the error mode indicates “Sensor warranty expired” see the Sensor Replacement section of these User Instructions.
Sensor Life Reset 1. Remove the Philips screw on the front of the TX-6-ND. Pull the front cover of the unit off. 2. To reset the sensor life (rSt), from normal or warm-up mode, press the Next button four times to get to SEn or Sensor Mode. 3. Then press the Enter button to get to “rSt” - Reset Sensor Mode. 4. Press the Enter button again to see the sensor reset status. If the sensor life has already been reset, done “don” will be displayed. If it has not already been reset, “no” will be displayed.
1. 2. 3. 4. 5. 6. 7. 8. Remove the single screw in the middle of the front cover of the TX-6-ND. Remove the front cover. Locate the switch labeled ENTER/TEST on the left side of the printed circuit board. Observe the LED light on the front of the TX-6-ND. If the light is solid green proceed to step 7. If the light is off or flashing Green, refer to the General section above. Push the Test switch once.
Nitrogen Dioxide Gas Test ! WARNING The following steps must be performed when conducting a calibration or calibration verification test (bump test) to ensure proper performance of the monitor. Failure to do so may adversely affect product performance and result in sickness or death. When performing a calibration or calibration verification test (bump test) only use certified calibration gas at the required concentration level. Do not calibrate with expired calibration gas.
5. Turn on the regulator to start the gas flow and wait with the gas applied continuously. 6. With the display function turned “On”, the TX-6-ND will show the current concentration of gas or “0.0” (zero) in clean air. When the gas concentration reaches the Fan Relay setting (1.0 ppm, for example) the display will flash back and forth between “FAn” and “1”. With the display function turned ”Off”, the display does not show the gas concentration, but will show “FAn” as long as the fan relay is activated.
7. Remove the gas from the sensor. Re-assemble the TX-6-ND (make sure the LED is aligned with the front case hole). 4-20 current loop test is complete. FIELD CALIBRATION PROCEDURE Note: For optimum calibration results the unit should be in clean air and be in a low ambient air flow. Zero the Sensor 1. Ensure that the ambient air has less than 0.1 ppm NO2 before proceeding with Zeroing the sensor. Remove the Philips screw on the front of the TX-6-ND. Pull the front cover of the unit off. 2.
MACURC CO FIXED GA AS DETECTIO ON PRODUCT TS LIMITED W WARRANTY Macurco warrants w the TX-6-ND gass detector will be free from m defective m materials and workmanshipp for a period of two t (2) years from date of manufacture (indicated on the inside coover of the TX X-6-ND), provided it is maintaained and ussed in accorrdance with Macurco insstructions and/or recomm mendations.
