Using G7 Pump

How do I use pump?

How Do I Use Pump   G7's multi-gas pump cartridge utilizes configuration modes to enable and disable the pump. Configuration modes allow G7 to temporarily change its behaviour, such as enabling pump or muting gas alarms. Modes can be entered/exited from the main menu under "modes" or from the G7's secondary menu, accessibly by pressing the up or down arrows from G7's main gas screen. G7's configuration modes offer three pumped modes: pre-entry, leak check and pump run (coming March 2019). These modes are entered and exited to turn pump on and off. These modes both have a mode timeout period, where after your configured timeout has elapsed, you can extend or leave the mode. If you don't make a choice in 30 seconds, G7 will automatically return to normal mode and the pump will turn off. To use pump, attach a multi-gas pump cartridge to your G7 device, insert your quick connect and attached tubing, and enter a pumped mode. Pump will turn on automatically. When pump is on, the pump icon will be visible on G7’s main screen.        

Bump tests and calibrations

How do I bump test and calibrate G7 with a pump cartridge?

The pump cartridge is bump tested and calibrated in the same way all other G7 gas cartridges are. Bump Tests And CalibrationTo manually calibrate or bump test:

  1. Attach calibration cap to one end of the tubing
  2. Attach the other end of the tubing to a fixed flow regulator on your calibration gas cylinder
  3. Attach the calibration cap to the cartridge
  4. Press OK to access the main menu
  5. Using the up and down arrows, navigate to gas options
  6. Select OK to enter the gas options menu
  7. Use the OK button to select bump test or calibration
  8. Follow the instructions on G7’s screen to complete the calibration or bump test

    Bump testing and calibrating using G7 Dock USING G7 PUMPAdditionally, bump test and calibration can also be done in G7 Dock. However, to accommodate the added thickness of the pump cartridge, you will need an updated G7 dock. You can check if your dock is updated by seeing if its model is DOCK-P. It is important to note that G7 cannot be bump tested or calibrated through the pump, it must be done over the sensors with a calibration cap or G7 Dock.      

Block tests

How do I perform a block test?

Blackline safety

You will be asked to perform a block test upon entering any pumped mode, such as leak check, pre-entry or pump run. Follow the steps on G7’s screen to complete the block test. If you do not pass the block test, you will not be able to enter the mode.

IMPORTANT: Residual gas in the tubing may cause G7 to go into alarm during an automatic block test. Ensure your tubing is clear when entering a pumped mode test to avoid false alerts.

When you are in a pumped mode, you can perform a manual block test at any time by plugging G7’s inlet. This will cause G7 to go into yellow warning alarm, and your screen will let you know that your pump is blocked. Unplug your inlet, and if the warning alarm silences, you know that your equipment is safe to use.

         

Pump details

Where do I see my pump details?

Blackline safetyWhen a pump cartridge is attached to G7, you can see the pump status screen by pressing the up or down arrow from G7’s main status screen. Here you can see if pump is on or off, your hose length, flow rate and sample time (if enabled).        

What is flow rate?

Flow rate is the speed at which air is passing over your device’s sensors. In order to provide accurate gas readings, flow rate needs to be above 150 ml/min. A flow rate less than 150 ml/min will result in a pump block yellow warning alarm. By default, Blackline’s pump aims to maintain a flow rate of 300ml/min and G7 will automatically adjust its pump speed to maintain this rate.

Sample timer

What is the sample timer?

The sample timer is the amount of time it takes for one air sample to be pumped to your sensors. This calculation is based partly on your hose length. If sample timer is enabled, the pump status screen will show a countdown and beep once when a sample cycle has completed. The sample cycle will repeat continuously until you turn pump off. If disabled, the sample timer will not show and the device will not beep, but pump will continue to function normally. Blackline recommends a 120 second sample time for 10 feet of tubing, with an additional second per foot of tubing.

How do I enable the sample timer?

  1. Press OK to enter G7’s main menu
  2. Use the up and down arrows to navigate to settings, press OK
  3. Use the up and down arrows to navigate to pump options, press OK
  4. Select sample timer off
  5. Select yes to confirm that you would like to enable the sample timer

How do I disable the sample timer?

  1. Press OK to enter G7’s main menu
  2. Use the up and down arrows to navigate to settings, press OK
  3. Use the up and down arrows to navigate to pump options, press OK
  4. Select sample timer on
  5. Select yes to confirm that you would like to disable the sample timer

Hose length

What is hose length?

Hose length is an estimate of how long the tubing attached to pump is. This value is customizable from the pump options menu, and factors in to sample time. G7's multi-gas pump cartridge supports up to 99 feet of tubing.

How do I change hose length?

  1. Press OK to enter G7’s main menu
  2. Use the up and down arrows to navigate to settings and press OK
  3. Use the up and down arrows to navigate to pump options and press OK
  4. Select hose length
  5. Use the up and down arrow to enter the first digit of your length and press OK
  6. Use the up and down arrow to enter the second digit of your length and press OK
  7. Use the up and down arrows to choose your units, meters or feet, and press OK
  8. Select yes to confirm your length or select edit to make changes to your choice

 

For questions on pump cartridges, G7, or other support inquiries, our Customer Care team is here to help.