Arbiter Backflow

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MK5 Operator's Manual

Overview

  

With over 25 years of experience developing field-rugged instrumentation, Arbiter’s team is proud to introduce the Mako, a revolutionary tool for the backflow and cross connection control industry.


The Mako provides a tough, water resistant digital solution with more benefits and features than a traditional mechanical gauge. 


MAKO can perform all standard backflow testing procedures including those from USC FCCCHR, ABPA, NEWWA, AWWA, UF TREEO and ASSE.

MAKO also allows the user to do things that aren’t possible with mechanical gauges.


· Its large values and backlit display allow it to be read in the dark and from distance. 


· Its unique Capture Value function makes remembering values effortless and allows you to capture fast-changing values on RPBAs.


·  Its ergonomic design allows you to easily grip the Mako and the soft rubber over-molding provides your hand with a comfortable hold that is easier to grab and hold, even when wet.


· The Mako’s design also provides ease of use while the tool is lying on the ground or is hung from the strong hook recessed on its back.


· The Mako includes custom-made hoses that are more flexible than others in the industry and are made from materials that are suitable for potable water, following the NSF 61 and FDA guidelines. The filter is 40 microns which is also a higher grade than the industry standard filter which keeps more debris out of your tool.

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Diagram of MK5

MK5 Front

  

1. Low Bleed Port: Connect your included Low Bleed Port hose here.

2. Low Bleed Port Knob: Turn knob clockwise to close the Low Bleed Port. Turn knob counter-clockwise to open the Low Bleed Port. Do not exceed finger tight when opening or closing the knob. Do not use any external tools to increase torque applied to this or any knob on the Mako.

3. High Bleed Port: Connect your included High Bleed Port hose here. 

4. High Bleed Port Knob: Turn knob clockwise to close the High Bleed Port. Turn knob counter-clockwise to open the High Bleed Port. Do not exceed finger tight when opening or closing the knob. Do not use any external tools to increase torque applied to this or any knob on the Mako.

5. Capture button: Use this button to capture the live readings from the Main Display into one of the Capture Positions. More details are available in the Capture and Clear Values section.

6. Back Button: Press the Back Button once to delete the previous Captured Value. Hold the Back Button for 1.5 seconds to clear all Captured Values. More details are available in the Capture and Clear Values section.

7. Power Button: Hold the Power Button to turn the unit on or off. When the unit is on, press and release this button quickly to toggle the backlight on and off. 

8. LCD: The LCD shows all the Mako measurements and information. See Display Overview section for more details.

9. High Pressure Port Knob: Turn this knob clockwise to close the High Pressure Passthrough. Turn this knob counter-clockwise to open the High Pressure Passthrough. Do not exceed finger tight when opening or closing the knob. Do not use any external tools to increase torque applied to this or any knob on the Mako.

10. High Pressure Port: Connect your included High Pressure Port hose here. The Mako uses a differential pressure sensor which displays High Pressure - Low Pressure; when testing a backflow assembly or across any pressure drop, be sure to connect the higher pressure measurement to the High Pressure Port and the lower pressure measurement to the Low Pressure Port or the gauge will read “0.0”.

11. Bypass Port Knob (Sometimes referred to as Vent Port Knob): The Bypass Port Knob allows you to transfer water and pressure from the High Pressure or Low Pressure side of the sensor through the Bypass Port and vice versa; it is used when testing Reduced Pressure Backflow Assemblies (RPBAs).  Do not exceed finger tight when opening or closing the knob. Do not use any external tools to increase torque applied to this or any knob on the Mako.

12. Bypass Port.: Connect your included Bypass Port hose here.

13. Low Pressure Port Knob: Turn this knob clockwise to close the Low Pressure Passthrough. Turn this knob counter-clockwise to open the Low Pressure Passthrough. Do not exceed finger tight when opening or closing the[RH7]  knob. Do not use any external tools to increase torque applied to this or any knob on the Mako.

14. Low Pressure Port: Connect your included Low Pressure Port hose here. The Mako uses a differential pressure sensor which displays High Pressure - Low Pressure; when testing a backflow assembly or across any pressure drop, be sure to connect the higher pressure measurement to the High Pressure Port and the lower pressure measurement to the Low Pressure Port or the gauge will read “0.0”.

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Diagram of MK5 Continued

MK5 Rear

  

15. Hook with Strap: This hook and strap allow you to hang the Mako while you are reading or performing tests. Only hang on well-fixed pipes that fit within the diameter of the hook.

16. Hook Clip: This clip keeps the Hook and Strap safely stowed and out of the way when the Hook and Strap are not being used.

17. Magic Vent: This vent allows condensate moisture to escape the meter while preventing external water from entering the unit. Take care not to puncture the Magic Vent with any tools or sharp objects as doing so will void your warranty and may reduce the lifespan of the Mako. 

18. Hook Groove: Groovy Place for the Hook to be stowed when not in use. The orientation of the hook can be reversed (facing left or right).

19. Battery Compartment Screws: Unscrew all four Battery Compartment Screws before removing the battery cover.

20. Battery Cover Lip: Place your fingernail under here and lift gently once you have removed the Battery Compartment Screws to reveal the batteries. 

Do not use sharp tools or great force to remove battery cover as you may damage the Battery Cover Gasket. 

Replace only with rechargeable or alkaline AA batteries.

21. Battery Cover Gasket: Is an important part of what keeps the Mako water-resistant. Make sure the gasket around the battery cover is in place and undamaged before replacing the battery cover. The battery cover also contains important information about your backflow instrument as well as a link to our support page.

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MK5 Display

MK5 Display Details

  

A. Rate of Change Graph: Tells you how quickly the measurement is changing. When a reading is stable, the bar will have a single dot in the middle. See the Rate of Change Graph section for more details on how this feature is used.

B. Main Display:  Shows the current, live reading from the differential pressure sensor.

C. Captured Value: Up to six captured values can be stored in positions 1-6. These readings can be cleared individually or all at once at any time. See the Capture and Clear Values section for more details.

D. Active Position Cursor: Shows you which position the next Captured Value will be saved to.

E. Auto Power Off (APO) indicator: The Mako is set to automatically power off after 30 minutes of no use to conserve battery life. This saves you batteries if you forget to turn MAKO off before storage. 

F. Calibration (CAL) Mode indicator: Shows that the unit is currently in calibration mode. 

G. Download Indicator: Shows that a firmware update is being downloaded into MAKO.

H. Wireless Connection Indicator: Shows that the Mako is currently connected to a mobile device. This is used when connected to our App that is used for downloading new firmware or calibrating the Mako. 

I. Battery Life Indicator: Shows the approximate battery life remaining. When the battery reaches zero bars, the empty battery icon will begin to clink at a rate of 1Hz; change batteries ASAP. When the battery life is critically low, a warning tone is played before the unit shuts down.

J. Units: Shows the pressure units currently being displayed. There are two possible pressure differential units, PSID and KPaD. 

K. Captured position ID: Label for the Captured Value or Capture Position adjacent to the ID

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MK5 Water Flow Diagram

MK5 Water Flow Details

In the diagram above, arrows start and end on valves or the water source.  This is an accepted 5 valve water flow configuration as prescribed by the USC FCCCHR Manual 10.

Capturing and Clearing Values

Button Diagram

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 Capturing values allows you to eliminate the pencil and paper you are taking to each assembly. Six values can be stored in memory and shown on the display allowing you to record the working pressure as well as all test values on any backflow assembly. The capture button also allows you to capture the value of the pressure differential when the relief valve on a RPBA or the air inlet valve opens on a PVBA or SVBA. 

Display Diagram

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The active capture slot (where the next reading will be captured) is shown by an underlying bracket, such as "D" in the above picture.


To capture a value, press the Capture button. 


To clear a value press and release Back button. 


  

To clear all captured values, press and hold the Back button. Release button once all captured values are cleared.

Rate of Change Graph

Rate of change graph on display

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Shows how quickly the current live reading is changing. This is useful for helping you determine when the relief valve on a RPBA opens. This rate of change graph is also useful for helping you get a feel for stable and unstable water pressures which helps you determine when a test will yield good results and when the pressure is too volatile to test.

Stable Pressure Differential

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When the pressure is stable, the Rate of Change Graph will look like the graph above or have one to two units filled in either direction.  The first slot on each side of the left and right of center diamond show change in pressure of ±0.05 PSID/second.

Increasing Pressure Differential

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When the pressure is increasing, the arrows on the right side will be darkened as in the picture above.  The faster the pressure is increasing; the more arrows will be darkened.

Decreasing Pressure Differential

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When the pressure reading is decreasing, the arrows on the left side will be darkened as in the picture above. The faster the pressure is decreasing; the more arrows will be darkened.

Secondary Operations

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Toggling Backlight On and Off

  

To preserve battery life, the backlight defaults to off when powering on the Mako. 


To toggle the backlight on, briefly press and release the Power/ Backlight button. Pressing the button too long will power the unit off.

Auto Power Off

Auto Power Off (APO) turns the Mako off after 30 minutes of non-use. 


To disable the Auto Power Off function, Hold the Back button while powering on the Mako. The Auto Power off indicator  "APO" will no longer be visible in the upper left area of the display. APO is enabled by default when the Mako is powered on.

Change Units

  

The Mako is factory defaulted to PSID. 


If you wish to change units between PSID and KPaD, you can change the units by holding the Capture button while powering on the unit.

Cautions and Warnings

Freezing Temperatures must be avoided

Exposure to freezing temperatures with water inside will constitute abuse and void your warranty. 


ALWAYS DRAIN WATER FROM YOUR GAUGE AFTER USE. 


OPENING YOUR MAKO beyond the battery compartment VOIDS the WARRANTY.  For service IN or OUTSIDE the WARRANTY, contact us or one of our calibration, distribution or service partners. 


Reversing any hose direction or operating the Mako without hoses other than those provided by Arbiter or operating a hose without a filter provided by Arbiter VOIDS the WARRANTY.  Regularly cleaning and replacement of the hose filters is necessary to maintain proper operation of the Mako.  For a video on how to perform this properly, visit our "Learn" tab and watch the video on how to properly clean and replace your hose filters.

Warranty

  

FREEZING TEMPERATURES MUST BE AVOIDED. Exposure to freezing temperatures with water inside will constitute abuse and void your warranty.


Arbiter sets a new standard for the warranty of a digital backflow gauge. Arbiter warrants that all MK5 gauges sold shall be free from defects in workmanship and manufacturer’s defects for (5) five years. Contact Arbiter with service or warranty questions. Warranty for accessories (hoses, case, etc.) are limited to (1) one year. Consumables (batteries, water filters, etc.) do not have a warranty.


Opening the product or breaching the product case in any way except for opening the battery compartment to change batteries will void the warranty. Damage to or failure to replace the battery compartment seal will also void the warranty. Any neglect or abuse of the Mako by the user will void the warranty. Determination of neglect and abuse is at the discretion of Arbiter Incorporated and the service agents acting on Arbiter’s behalf. Differentiation between an accessory and consumable is also at Arbiter’s discretion. Repairs needed for sludge, debris or other material inside the Mako that arrived due to use without filters, reversal of hoses or use with third party hoses are outside the warranty. 

Contact Information

Leave us a message on our Support Page by pressing the action button below.  If it's urgent, call (503) 847-4936.