Ax60+ Modular Gas Safety System

The Ax60+ systems have latched alarms as standard however does have the option of disabling alarm latching. It is our hope that the following information will help to avoid confusion when silencing and acknowledging alarms.

Latched Alarms

These will not clear unless acknowledged. For example, if the target gas level increases beyond the alarm threshold, the device will go into alarm and remain like this until the alarm has been acknowledged.

Non-Latched Alarms

These will clear without acknowledgement. For example, if the target gas level increases beyond the alarm threshold, the unit will go into alarm but once the gas returns to safe limits the alarm automatically clears.

Both Latched and Non-Latched alarms can be muted with a single press of the Accept/Test button, but in order to acknowledge a latched alarm the user must first cycle through the display until an ‘*’ is seen, then press and hold the Accept/Test button for 3 seconds (resulting in the ‘*’ changing into a ‘>’.

The video below shows an example of muting and acknowledging a latched alarm

The Ax60+ Alarm/Strobe Unit is IP55 rated.

IP means Ingress Protection, the 2 numbers after indicate to what level the unit is able to protect itself against dust, moisture, liquids and accidental contact. The IP rating for this unit is broken down below;

• 5 – Solids – Dust Protected. Limited ingress of dust permitted. Will not interfere with operation of the equipment. 2 to 8 hours.
• 5 – Water – Protected against jets of water. Limited ingress permitted.

However, the unit is Not Waterproof/Weatherproof for long periods of time, and in direct sunlight the UV light will fade the label on the unit. The Alarm Unit can be mounted outside if it has sufficient protection from the elements.

All relevant Ax60+ document information can be found on the Ax60+ product page.

There are two potential reasons for the Ax60+ to show a FLT16 code on the screen, these are:

1. The sensor unit requires zero and span calibration adjustment (see the service manual for guidance on carrying out this process)
2. The CO2 sensor alarm directions have been incorrectly set.

If your unit is displaying a Flt16, first attempt a zero and span calibration adjustment then power cycle the device. If this is not possible or the issue is not resolved, check to see if it has been correctly configured as detailed below.

The Ax60+ is primarily a breathing air device, as such, the CO2 sensor unit alarms are restricted to only trigger in the ‘high-going’ direction. If a user changes the alarm ‘going’ to ‘low-going’ a FLT16 will ensue.

To clear this fault the following steps should be followed (be aware that only a short period of non-alarm time is available so you’ll need to be quick!!):

1. Power cycle the Ax60+ (turn it off and on again)
2. Wait for the sensors display on the screen
3. Press the Accept/Test button briefly to silence any alarms. Press and hold the top two buttons (Cancel and cycle) until the top level menu is reached.
4. Press the cycle button six times (until sensor config is shown)
5. Press the Accept/Test button. Press the cycle button twice (Alarm direction is shown)Press the Accept/Test button. Select the sensor that had the alarm ‘going’
6. changed (press cycle to move the arrow selector over until the relevant sensor is identified and press the Accept/. test button)
7. Select the alarm that had the alarm ‘going’ changed
8. (press cycle to move the arrow selector over until the relevant alarm is identified and press the Accept/test button)
9. Change the alarm direction to ‘up’ (press the cycle button until the arrow selector points at the up arrow and press the Accept/test button)
10. Press the cancel button five times until the sensors display on screen
11. Acknowledge any faults displayed
12. Power cycle the unit

All relevant Ax60+ document information can be found on the Ax60+ product page.

There are two potential reasons for the Ax60+ to show a FLT16 code on the screen, these are:

1. The sensor unit requires zero and span calibration adjustment (see the service manual for guidance on carrying out this process)
2. The CO2 sensor alarm directions have been incorrectly set.

If your unit is displaying a Flt16, first attempt a zero and span calibration adjustment then power cycle the device. If this is not possible or the issue is not resolved, check to see if it has been correctly configured as detailed below.

The Ax60+ is primarily a breathing air device, as such, the CO2 sensor unit alarms are restricted to only trigger in the ‘high-going’ direction. If a user changes the alarm ‘going’ to ‘low-going’ a FLT16 will ensue.

To clear this fault the following steps should be followed (be aware that only a short period of non-alarm time is available so you’ll need to be quick!!):

1. Power cycle the Ax60+ (turn it off and on again)
2. Wait for the sensors display on the screen
3. Press the Accept/Test button briefly to silence any alarms. Press and hold the top two buttons (Cancel and cycle) until the top level menu is reached.
4. Press the cycle button six times (until sensor config is shown)
5. Press the Accept/Test button. Press the cycle button twice (Alarm direction is shown)Press the Accept/Test button. Select the sensor that had the alarm ‘going’
6. changed (press cycle to move the arrow selector over until the relevant sensor is identified and press the Accept/. test button)
7. Select the alarm that had the alarm ‘going’ changed
8. (press cycle to move the arrow selector over until the relevant alarm is identified and press the Accept/test button)
9. Change the alarm direction to ‘up’ (press the cycle button until the arrow selector points at the up arrow and press the Accept/test button)
10. Press the cancel button five times until the sensors display on screen
11. Acknowledge any faults displayed
12. Power cycle the unit

There is some backwards compatibility:

• Ax60+ CO2 sensor units CAN be used with both Ax60 and Ax60+ central displays.
• Ax60 sensor units CAN ONLY be used with Ax60 central displays.
• Oxygen sensors CAN ONLY be used on the Ax60+ central displays.

See table below for reference:

Stay out of the area, open all windows and doors to ventilate. Do not re-enter the area until the alarm condition stops and the reading on the display has returned to normal.

Have a suitably qualified person check the gas bottles/lines for leaks/frosting.

To silence the alarm, press the Accept/Test button.

A COMMS fault means a sensor has developed a communications fault. May be caused by accidental cable disconnection. To clear a COMMS FAULT press Accept/Test to silence the buzzer then reconnect the cable.

A COMMS fault can also be caused by incorrect jumper positions. Each sensor must have a unique jumper position. Two sensors with the same jumper position will cause a COMMS fault.

• Sensor 1 must have the jumper in position 1
• Sensor 2 must have the jumper in position 2
• Sensor 3 must have the jumper in position 3
• Sensor 4 must have the jumper in position 4

FLT06 is displayed when the Ax60+ fails to initialise correctly. This often means that the sensor did warm up correctly and did not reach its operating temperature. This can happen when the environment around the Ax60+ is too cold.

Turning the device off and on again should clear the FLT06.

If your device has latching faults enabled, the fault will need to be acknowledged first, to acknowledge the fault, please see the above instructions for acknowledging latched alarms.

The Ax60+ sensor units are IP55 rated, which means they are water-resistant, but not waterproof.

If the Ax60+ sensor unit gets soaked, it can sometimes cause it to go into alarm in error.

Powering down the sensor unit and giving it time to dry out should solve the problem and the Ax60+ should return to normal operation.