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Macurco Gas Detection

FAQ’s

FAQ’s

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General Questions

Please fill out our Contact Us form, and we can direct you on where/how to buy.

You can also visit our Sales Territory Map to find the representative for your region.

Warranty information is listed at the end of each product manual or to find policies by clicking the link below.

Shipping & RMA Policies

An RMA can be requested by filling out our request form or sending an email to [email protected]. For more details on our RMA policies, please review our Shipping & RMA Policies page.

A bump test or gas test is the process of testing the sensor and device by applying a known concentration of gas. For a unit to pass a bump test, it should respond to the gas applied and read the concentration accurately. The device should then clear to zero when the gas is removed. If the device fails to respond to gas, see the operation manual/ user manual or contact support for troubleshooting. If the device fails to read accurately or does not clear to zero, a calibration may be needed to correct the sensor reading.

Fixed Detectors

CX-6/12, CD-6/12, CM-6/12, GD-6/12, TX-6/12-ND, TX-6/12-AM, TX-6/12-HS, OX-6/12, RD-6/12

Commercial Series (6 & 12 series) – The sticker is on the back of the unit (please see image below) *Older units may have the date code sticker on the plastic electrical cover or on the relays along the left side of the board. ** Older units with replaceable sensors (OX&TX) stickers would be located on the sensor.

Locate the white sticker on the unit that has 2 sets of numbers. One set is the part number, and the other is the 8-digit date code. Refer to the following image to obtain the date of manufacture.

Macurco Product date code is in the format of AABCCDDDD where AA is the 2-digit year, B is a Letter corresponding with a month, CC is the day of the month, and D is the calibration Lot code.

It is recommended the detectors be bump-tested on a regular schedule to ensure the sensor is functional; calibrations may be needed to maintain the sensor’s accuracy.

Standalone/Analog Applications: 18/4 stranded (preferably shielded)

Modbus Applications: Power: 18/2, Signal: Use at least 3 conductor wires with one twisted pair providing a pair for signal (A & B) and common (COM) connections. For best performance, use shielded 3-conductor wire with one twisted pair providing a pair for signal (A & B), common (COM), and shield ground (SHD) connections 22 or 24 Gauge.

CM-E1 – Flashing amber / end of life – The CM-E1 will flash an Amber LED once the unit has reached its end of life. This indicator can be reset for 24 hours for 30 days. After 30 days the unit will no longer allow the reset and will need to be replaced.

t200 – This error code will display on the Macurco 6 & 12 series devices indicating the sensor has reached its end of life. Depending on the model the sensor can be replaced (TX & OX models) or the device will need to be replaced.

t100 – This error code will display on the Macurco 6 & 12 series devices indicating the sensor is under range or detecting levels less than zero. To clear this code a field calibration will need to be successfully completed on the device.

CCC – This error code will display on the Macurco 6 & 12 series devices when the sensor is over range. Typically, this error will clear once the gas level has returned to levels within range of the sensor.

For further assistance, please contact technical support at 844-325-3050 or [email protected]

6 & 12 series – To find the firmware version loaded on your commercial device, disconnect the power either by removing the power terminal from the back of the device or at the power source. When power is reapplied to the unit the display will show the current firmware version prior to starting the warm-up count down

CM-E1, GD-2B, GD-2A, HD-11

CM-E1/GD-2B – The sticker is located on the sounder, a white circular piece between the circuit board and faceplate, visible from the narrow end of the device.

GD-2A/ HD-11 – The sticker is located on the back of the front cover, visible once the cover is removed.

Commercial Series (6 & 12 series) – The sticker is on the back of the unit (please see image below) *Older units may have the date code sticker on the plastic electrical cover or on the relays along the left side of the board. ** Older units with replaceable sensors (OX&TX) stickers would be located on the sensor.

CM-E1 – Flashing amber / end of life – The CM-E1 will flash an Amber LED once the unit has reached its end of life. This indicator can be reset for 24 hours for 30 days. After 30 days the unit will no longer allow the reset and will need to be replaced.

t200 – This error code will display on the Macurco 6 & 12 series devices indicating the sensor has reached its end of life. Depending on the model the sensor can be replaced (TX & OX models) or the device will need to be replaced.

t100 – This error code will display on the Macurco 6 & 12 series devices indicating the sensor is under range or detecting levels less than zero. To clear this code a field calibration will need to be successfully completed on the device.

CCC – This error code will display on the Macurco 6 & 12 series devices when the sensor is over range. Typically, this error will clear once the gas level has returned to levels within range of the sensor.

For further assistance, please contact technical support at 844-325-3050 or [email protected]

The CM-E1 now has an 8-pin wiring harness vs the 6-pin. Please reference the wiring diagram above or in the user manual for the correct alarm and trouble relay configuration back to the alarm control panel.

Control Panels

DVP-120, DVP-120M, DVP-120B, DVP-120C

DVP-120 – The DVP-120 Control Panel is used for smaller (12 sensors or less) systems. This setup utilizes a 4-conductor home run of wire and an analog 4-20mA communication loop.

DVP-120M – The DVP-120M Control Panel is used for larger (13 – 87 sensors) systems. This setup utilizes a Modbus communication loop over a twisted & shielded cable. The panel supports up to 3 communication loops that can be daisy-chained from sensor to sensor.

DVP-120B – The DVP-120B Control Panel takes the Modbus communication another step with the addition of BACnet output for logging of the system data. This panel will support up to 99 sensors on two Modbus communication loops both terminating on the TB1 terminal.

DVP-120C – The DVP-120C Control Panel is Approved for Title 24 use in California. This panel utilizes the same hardware as the DVP-120B, which supports up to 99 sensors on 2 Modbus communication loops.

Control Panel Options Chart

Control panels – The sticker is located on the inside of the front panel, and the date code is listed under the serial number.

Please click the video link below for step by step by step instructions on how to setup relays and horn/strobes on the Macurco DVP-120 Control Panel.

DVP-120 – Relay & Horn/Strobe Setup

Please click the video link below for step-by-step instructions on configuring alarm and warning values on the Macurco DVP-120 Control Panel.

DVP-120 – Alarm and Warning Setpoint Setup

Please click the video link below for step-by-step instructions on how to set up zones on the Macurco DVP-120 Control Panel.

DVP-120 Zone Setup  

When the CX-6 is connected to a DVP-120 control panel, the sensor will address by the channel it is connected to for the NO2 sensor and that channel plus 12 for the CO sensor. So, for the CX-6 terminated on C1 of the DVP-120 control panel it will obtain sensor address 01 for NO2 and sensor address 13 for CO.

When the CX-6 is connected to a DVP-120M or DVP120B control panel using the MRS-485, the sensor will obtain the address assigned to the MRS-485 for NO2 and that address plus 1 for CO. So, for the CX-6 connected to an MRS-485 with the address of 13, the NO2 sensor will show as sensor 13 and the CO will show as sensor 14 on the DVP-120M or DVP-120B.

In these systems, it is important to assign addresses to the MRS-485 accordingly, as using duplicate addresses is not allowed. Duplicate addresses will cause the sensor to not show up on the panel.

Once the DVP control panel is wired and powered on, complete these steps to configure your panel:

1) Press the menu button and verify the number of sensors matches the number connected. Troubleshoot any missing sensors.
2) Follow the steps outlined in the DVP Quick Start Guide to add the sensors and relays to zones.
3) Test the configuration by either bump testing sensors or performing a 4-20mA test from the sensor.

For further assistance, please contact technical support at 844-325-3050 or [email protected]

There are a few different ways to test the programming and functionality of the relays on the DVP control panels. Running the 4-20mA test from a connected sensor is one of the simplest and best ways. This test simulates gas being applied to the sensor and changes the output from that sensor, testing the connection to the panel as well as the programming that would control the relay on the panel.

To perform the 4-20mA test, follow these steps:
1) Remove the cover from the sensor.
2) Press the Menu button so the display reads “tst”
3) Press the Next/Enter button
4) Press the Menu/Next button so the display reads “42t”
5) Press the Next/Enter button to run the test.

For other options or further assistance, please contact technical support at 844-325-3050 or [email protected]

DVP Control Panel – The firmware version of the DVP control panel can be found by cycling power to the panel. When power is applied, the display will read the firmware version prior to starting the warmup countdown.

An external power supply is needed for daisy-chain (Modbus) applications.

DVP-1200

Yes. Please consult the DVP-1200 User Manual section 4.6.6 DATE/TIME – PASSWORD for steps on how to change the password.

Yes. One or two expansion relay boards can be added after safely powering down the DVP-1200 panel and installing them according to the DVP-1200 User Manual.

Yes. Relays can be set up to be triggered from multiple zones simultaneously, depending on how you configure each zone and the associated alarm outputs. Multiple relays can be triggered from a zone; however, only one relay can be designated as the alarm output.

After changing the settings on the screen, clicking the menu button twice brings up a prompt to save the changes. Press the number 1 to save and 0 to not save.

Yes. Think of a zone as an area where you wish to monitor the atmosphere where a fan, alarm, and/or horn & strobe will be located that can alert people to the presence of undesired conditions. The detectors mounted in that area can be added to a zone together. You can add multiple detector types, such as Nitrogen Dioxide (NO2), Combustible Gas (such as Propane, Methane, and Hydrogen), and even Refrigerant detectors to the same zone.

Highlight TECHNICAL SUPPORT and press the Enter Button. The current Firmware version will be displayed.

192 Modbus-equipped sensors. The MRS-485 adapter, sold separately, can be used to adapt Existing Macurco 4-20ma sensors to Modbus.

The DVP-1200 supports up to eight (8) zones.

Portable Detectors

PM100 – Pressing the button on the unit seven (7) times will display the firmware version.

PM400 – During power-up, the display will show the firmware version

Using the PM Link and software suite, the firmware can be viewed and updated on the PM100 and PM400, as well as the bump test and calibration stations.

It is recommended that all portable devices be bump tested prior to each use. If the unit fails a bump test it should not be used until the unit has passed a calibration.

PM150-CO2

  • PM150 – Pressing the Function button eight (8) times will display the firmware 
  • PM150 – Connecting the device to a computer running the AimSafety_CO2 USB Link software 
  • PM150 – The unit is equipped with a rechargeable lithium cell that can go up to 14 days in standby (in measuring mode without going into alarm) between charges. 
  • The PM150-CO2 sensor range (Min/Max: 0ppm (0.0% vol) ~ 49,999 ppm (5% vol) 
  • Low Alarm: 5,000 ppm (0.5% vol) 
  • High Alarm: 10,000 ppm (1.0% vol) 
  • Zero Air (100% Nitrogen) Span Gas – 20,000PPM CO2 (2% vol)/Balance N2 
  • Yes. It will store the last 30 alarms in memory for retrieval using the CO2 software from AimSafety 
  • Up to 100 minutes, depending on power state and charging with the included adaptor 
  • Yes, both the battery and sensor can be replaced in the field. For the procedure, refer to the manual or contact AimSafety technical support for more details. 
  • EMC directive(2004/108/EC), RoHS2 

PM400