Manuals & Downloads

Indigo System Instruction Manual

Detailed guide to installation and operation of the Indigo Vaccine Carrier and Indigo Charger.

Indigo Training Presentation

A course designed to teach users essential procedures for the Indigo Vaccine Carrier and Indigo Charger.

Indigo Technical Manual

Detailed guide to maintenance and troubleshooting for the Indigo Vaccine Carrier and Indigo Charger.

Frequently Asked Questions

Cold Life

What does cold life mean?

Cold life is the duration of cooling capacity remaining in the vaccine carrier. For example, if the cooler lid display shows three days of cold life remaining, there is enough charge in the ColdLoop™ cooling engine to keep the vaccine chamber between 2 and 8 °C for at least three days.

What is the cold life of the vaccine carrier when fully charged?

The vaccine carrier is designed to ensure five continuous days of cold life.

What is the basis for the five-day cold life claim?

The claim of a minimum of five days at 2-8 °C is tested at a 43 °C ambient temperature, per WHO PQS standards. The cooling capacity required to initially pull the vaccine chamber temperature down to 2-8 °C is factored into this five-day standard.

How does the cooler lid calculate remaining cold life?

Charging the cooler resets the cold life timer to five days. The timer begins counting down the first time the cold key is in put in place. The countdown is suspended whenever the cold key is removed. If the vaccine chamber is allowed to heat up, additional cooling power is required to re-cool once the cold key is applied. To account for this, the timer subtracts a maximum of one day’s worth of cold time every time the cold key is removed and re-applied.

Is it possible that a charged vaccine carrier will provide more than five days of cold life?

It is possible that a vaccine carrier will supply more than five days of cold life if the average ambient temperature is lower than 43 °C. However, as the cold life timer will reach zero after five days, it will be unclear to the user how much cold life remains. To ensure vaccines are not spoiled, we recommend planning outreach that requires five days or less of cold life.

Vaccine Carrier Functionality

What is the capacity of the vaccine carrier?

The vaccine chamber is designed for 1.7L functional capacity

What should I do if the cold key is in place, but the vaccine chamber is not cooling?
  • Adjust the cold key on the valve to make sure it is seated correctly. The valve should make an audible “click” upon placement and should not be tilted.
  • Check that the cooler has been charged by viewing the cold life calculator on the cooler lid. A fully charged cooler will show “5 DAYS” of cold life with a complete circle around the number. If the cooler is not fully charged, it should be charged before use.
What should I do if the cold key is in place, but nothing is shown on the cooler lid display?
  • Adjust the cold key on the valve to make sure it is seated correctly. The valve should make an audible “click” upon placement and should not be tilted.
  • If the cold key is confirmed to be seated correctly and there is still nothing shown on the cooler lid display, replace the cooler lid battery. See the Indigo Vaccine Carrier Instruction Manual for instructions.
What would indicate that the cooler lid is not functioning properly?

It is likely the cooler lid is not functioning properly if any of the following occur:

  • The display shows a temperature outside the realistic range (-10 to 50 °C) or reads “Err”
  • The cold key is in place, but nothing is shown on the cooler lid display (please refer to the next question for recommended action)
  • The ON indicator does not appear on the display when the outer lid is on the cooler and the cold key is on the valve
  • The OPEN indicator does not appear on the display when the inner lid is removed during use
  • The charger is connected to the lid via USB cable, but the lid does not register the charger as connected (please refer to “Charger Functionality” section for next steps)
  • The lid is connected to an Android device with the Varo App via USB cable, but the Varo App does not register the cooler lid as connected (please test with other USB adapters and/or Android devices to verify the issue is with the lid before returning the lid for a replacement)
What constitutes significant damage to the cooler?

We recommend returning the cooler for a replacement if any of the following occur:

  • The cooler is damaged such that it does not fit into the charger properly
  • The cooler walls have a puncture
  • The cooler has a dent large enough to create contact between the outer and inner steel walls
What would indicate that the vaccine carrier is not functioning properly?

It is likely the vaccine carrier is not functioning properly if any of the following occur:

  • The cooler is charged, but the vaccine chamber does not reach 2-8 °C within an hour of putting the cold key in place
  • The cold life timer indicates there is remaining cold life, but the vaccine chamber is clearly not between 2 °C and 8 °C
  • The cold life timer indicates there is remaining cold life, but the lid display indicates the vaccine chamber is above 8 °C

Vaccine Carrier Operation

Should I ever disconnect the tether linking the lid to the cooler?

Please leave the tether in place at all times, including charging. Each cooler must stay paired with its original lid, otherwise the data associated with the cooler will be inaccurate.

Should I use the vaccine chamber for items other than vaccines?

The vaccine carrier can be used to transport other temperature-sensitive medical supplies, including reverse-logistic activities with blood and feces. Such activities should be conducted as entirely separate outreaches, and the vaccine chamber should not be shared with mixed medical materials, e.g., vaccines and feces should not be stored simultaneously. Always use established protocols for safe transport of medical samples and for cleaning between uses.

Should I put padding into the vaccine chamber to protect the vaccine vials?

Padding can help protect the vials on particularly rough trips. If padding is used, be sure to remove it before charging.

Do I need to secure individual vials within the vaccine chamber?

This is not necessary. We have found that vials are difficult to break even with considerable movement.

When is it safe to place vaccines into the cooler?

It is safe to place vaccines in the cooler when the lid registers a temperature between 2 °C and 8 °C. We do not recommend placing vaccines in the cooler while the cooling operation is in progress.

Why does the outside of the cooler heat up while the vaccine chamber is cooling down?

ColdLoop® uses energy to evaporate water in the inner absorbent layer surrounding the vaccine chamber. This cools the vaccine chamber, as the energy drawn from the chamber is heat. The water then moves to the outer ceramic desiccant layer as vapor. Once in the outer layer, the water condenses, releasing the energy that was required for evaporation as heat. As the inner and outer layers are separated by vacuum insulation, this released heat cannot re-heat the vaccine chamber, and instead dissipates into the surrounding environment.

How long will it take the cooler to reach 2-8 °C once turned on?

Starting at 43 °C, the vaccine chamber will reach 8 °C in roughly thirty minutes.

How do I know if the cold key is in place and the cooler is on?

The temperature reading on the cooler lid will begin to drop within two minutes of application.

Charger Operation

What AC specification is necessary to plug in the charger?

Rated Input Voltage: 110VAC - 278VAC
Phases: 1
Frequency:  50Hz/60Hz
Minimum current draw: 3.3A (278VAC)
Maximum current draw: 8.2A (110VAC)

What generator specification is necessary to power the charger?

A 1.5kVa generator will support a single charger; a 2.5 kVa generator will support two chargers.

How long can a charged vaccine carrier be stored before use?

If a charged vaccine carrier is not used within four months, we recommend recharging.

Is it safe to have the lid tether connected during charging?

Yes. Please leave the tether in place at all times, including charging. Each cooler must stay paired with its original lid, otherwise the data associated with the cooler will be inaccurate.

Can I take the cooler out of the charger before the charge cycle is complete?

Please do not remove the cooler before the charger says the charge cycle is complete and the cooler is safe to remove.

Can I use the charger for anything other than charging the Indigo cooler?

Please do not put anything in the charger other than the cooler from the matching product series.

Are there any altitude restrictions for charger use?

The charger is not intended for use at altitudes exceeding 2000m.

PATENTS

US 9,170,053 – US 9,657,982 – US 11,105,556 – US 10,941,971 – CN 105143062 – CN 106794114 – KR 1024506610000 – EP 3362757 – DE3362757 – EP3177257 – DE3177257 –DK3177257 – FR3177257 – GB3177257 – EP2978683 – DE2978683 – LU2978683 – FR2978683 – GB2978683 – EP2979044 – DE2979044 – HK17112358.2 – IN457751 – IN398811 – IN446252 – IN386084 – EP 3,362,757 A4 – ZA 2017/01614 – ZA2018/03191 – TW1711567 –AE4996 – TH99065 – EP 3,177,257 B1 – DK 3,177,257 T3 – EP 2,978,683 B1 – DK 2,978,683 T3 – TW I,732,703B – JP 6509809 B2– JP 6,869,975 B2 – JP 6,632,606 B2 – HK 1,251,646 A1 – HK 1,218,639 A1 – SG 11,201,700,928 VA – ZA 201,803,161 B – Patents Pending

Indigo: Last Mile Cold Chain
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