Support

Frequently Asked Questions

Overview

WARNING: Do not use your iLet System and its components before reading the user guide and participating in training. Failure to follow the instructions in the user guide can result in over/under delivery of insulin. This can cause very low or very high blood glucose (BG), which could result in serious injury or death.

How is the iLet different from my current diabetes care of multiple daily injections (MDI)?

The iLet is an Automated Insulin Delivery (AID) system, meaning it automatically adjusts and delivers insulin based on glucose values from your continuous glucose monitor. Click here for additional information on switching from MDI to iLet.

How is the iLet different from other Automated Insulin Delivery (AID) systems?

The iLet Bionic Pancreas is the only insulin delivery system that makes 100% of dosing decisions without the settings your provider typically determines. Unlike other AID systems, the iLet only needs one number – your weight – to initiate automated insulin delivery. Once initiated, the iLet does not require carb counting^* to deliver meal-time doses and will continuously adapt to your insulin needs. Click here for additional information on switching from other AID Systems to the iLet.

^*The user must be carb aware.

What is carb awareness?

The iLet does not require a user to enter an exact carb amount to give a meal dose. It does require that the user announce the meal as ‘Breakfast’, ‘Lunch’ or ‘Dinner’ AND provide an estimate of the carb content as ‘Usual for me’, ‘More’, or ‘Less’ for that meal type. This estimate of carb content is referred to as ‘carb awareness’.

What kind of infusion sets are available for use with the iLet?

The following infusion sets are available for use with the iLet:

Convatec Inset™ (6mm cannula length)
Convatec contact™ detach (6mm cannula length)

How often should I change my infusion set?

You should follow the infusion set manufacturer’s guidance on how often to change your infusion set. You can find the manufacturer’s guidance on the infusion set’s original packaging.

What if I need help using my iLet?

You can visit our Support Center for text and video guidance on using the iLet and supplies. Alternatively, call our Customer Care team at (855) 745 3800, available 24/7, for questions about your iLet, connecting to the iLet App, etc.

WARNING: DO NOT start to use your system without adequate training from your HCP and/or a certified iLet trainer. DO NOT change your settings without guidance from your HCP.

How do I order supplies for my iLet?

Beta Bionics does not process supply orders directly. To order supplies, please contact the distributor with whom you have been set up. If you are unsure who to contact to order supplies, please call our Customer Care team at (855) 745 3800 for 24/7 support.

What if my iLet gets wet?

The iLet has an IPX8 (“moisture protection”) rating; it is protected against immersion in water for up to 12 feet for 30 minutes. However, we recommend that you do NOT place any part of your iLet in water. If your iLet is exposed to water and there is any sign of water entry, switch to an alternative therapy and call our Customer Care team at (855) 745 3800 for 24/7 support.

CAUTION: Do not place any part of your iLet System in water. If your iLet System has been exposed to water, check for any signs of water entering your iLet System. If there are signs of water entry, stop using your iLet System and use an alternative therapy.

Settings

I think my body weight and CGM Target settings are off, should I change them?

You should NOT change your body weight and CGM Target settings without your healthcare provider’s guidance.

I received my iLet and supplies but have not completed training. What should I do?

A certified iLet trainer from Beta Bionics will reach out to you shortly to schedule your iLet training. You should NOT begin using the iLet until you have completed training with a certified iLet trainer.

What if my bodyweight changes by more than 15%?

The iLet will automatically ask you to re-enter your bodyweight every 3 months. Consult with your healthcare provider before adjusting your bodyweight.

WARNING: DO NOT start to use your system without adequate training from your HCP and/or a certified iLet trainer. DO NOT change your settings without guidance from your HCP.

How should I determine my CGM Target and Secondary CGM Target?

Consult your healthcare provider before setting OR changing your CGM Target and Secondary CGM Target.

WARNING: DO NOT start to use your system without adequate training from your HCP and/or a certified iLet trainer. DO NOT change your settings without guidance from your HCP.

Meal Announcements

When do I announce?

Announce a meal right when you start eating.

You can announce up to 15 minutes before you start eating. Only do this if you are certain that you will start eating within 15 minutes to avoid hypoglycemia.
You can announce a meal up to 30 minutes after you start eating. If you forget to meal announce, and more than 30 minutes have passed since you started eating, do not meal announce to avoid insulin ‘stacking’.

CAUTION: Announcing more than 30 minutes after you have started eating can result in severe hypoglycemia.

If you announce a meal and then decide to eat more, you can announce again for the additional carbohydrates (carbs). Only consider the amount of additional carbs you are eating when choosing the meal size, not the carbs you have already announced for.

CAUTION: If eating more and announcing again, do not include carbs that you have already announced when deciding the meal size. This could result in severe hypogylcemia.

What is the meal type?

Select the meal type based on what you consider to be breakfast, lunch or dinner.

You are free to decide the meal type based on carbohydrate content, time of day, or whatever you find works best for you.
Being consistent with what you consider breakfast, lunch, and dinner will help the iLet learn how to treat your meals.

What is the meal size?

It is important to choose your meal size based on the amount of carbs in the meal, NOT the total size of the meal or the amount of protein, fiber or fat.

Although the iLet does not require you to count carbs, meals are announced as having Usual for me, More, or Less carbs.
Choose the meal size compared to the usual amount of carbs you eat for the chosen meal type.
You should be choosing “Usual for me” MOST of the time.
Use ‘Less’ if your meal has around half of the carbs (50%) of your ‘Usual for me’ meal.
Use ‘More’ if your meal has around 50% more carbs than your ‘Usual for me’ meal (1.5 times as many carbs as your ‘Usual for me’ meal)
All that matters is what you consider to be Usual, More, or Less for yourself and for the chosen meal type
Announce snacks the same way you would announce meals.
- If the snack you are eating has as many carbs as your meals for that meal type, then announce that snack as a meal.
- If your snack does not have as many carbs as your ‘Less’ meal type, then you should not announce that snack as a meal.

What happens if I do not announce my meals?

The iLet will automatically give you insulin as your blood glucose rises, but it will not be able to track and learn from your meals. Your blood glucose may go higher and stay higher for longer than if you had announced the meal.

CAUTION: This may lead to hypoglycemia later due to the correction algorithm adding more insulin.

I ate or drank carbohydrates to treat a low blood glucose. Should I announce these carbs as a meal?

No.

CAUTION: Do not announce a meal for carbohydrates used to treat low blood glucose. This could cause additional hypoglycemia and is dangerous.

If I forgot to announce my meal and I already finished eating, should I announce that meal?

You can announce a meal up to 30 minutes after you start eating. If you forget to meal announce, and more than 30 minutes have passed since you started eating, do not announce the meal.

CAUTION: After 30 minutes, your glucose is already rising, and the iLet System has already dosed insulin according to your rising CGM levels, even without a meal announcement. If you announce a meal during this time, you will “stack” insulin and be at risk for severe hypoglycemia, as well as confuse the iLet System, causing future meal doses to be less effective.

I usually have a snack before bed to keep my blood sugar in range overnight. Do I need to do this while using the iLet? If so, should I announce my bedtime snack?

You do not need to eat a bedtime snack to keep your blood glucose in range overnight while using the iLet.

If you chose to eat before bed, you should announce it to the iLet the same as you would during the day. This will give you insulin up-front and help prevent additional dosing in response to the rise in glucose after you eat and reduce the risk of hypoglycemia during the night.

I do not eat foods with carbohydrates and if I do, they are very low carb. Should I still announce my meals?

No. If you eat a very low carb diet or no carbs at all, you should not announce meals.

Can I use the meal announcement to bring my glucose level down if I am not eating?

No. This can be dangerous.

CAUTION: It could lead to severe hypoglycemia and confuse the iLet System, causing future meal doses to be less effective.

If my glucose is high and I am about to eat, should I announce a meal that is larger than my actual meal to get more correction insulin up front?

No. Do not announce a meal that is larger than the actual meal size to correct high glucose levels. The iLet will have already delivered correction insulin in response to your high glucose.

CAUTION: Announcing a larger meal than the actual size could lead to severe hypoglycemia and confuse the iLet System, causing future meal doses to be less effective.

I am used to counting carbohydrates. I saw how much insulin the iLet gave me for my last meal. Should I work backwards to figure out my meal size based on my old insulin to carbohydrate ratio?

No. The iLet does not use insulin to carbohydrate ratios to dose insulin for meals.

Do not calculate the amount of carbohydrates you need based on the insulin dose your iLet System gave you. This will affect the iLet System’s ability to learn about your insulin needs and confuse the iLet System, causing future meal doses to be less effective.

I think the iLet has not learned my meal doses because my glucose is high after meals. Is there anything I can do?

You may need to take a few days and focus on helping the iLet learn about your meals.

Be consistent with how you decide the meal type and size.
- Only select breakfast if you are eating your breakfast, lunch for your lunch and dinner for your dinner.
- Only think about the carbs in your meal when selecting the size, not fat or protein
- Try to eat meals that have carbs in the ‘Usual for me’ range and wait at least 4 hours before eating and announcing again

After a few days, your meal dose(s) should adapt. Consult your healthcare provider and / or certified iLet trainer with questions.

Charging

Can I increase the battery life of my iLet?

A fully charged iLet will stay on for 4 to 5 days, and it takes approximately 2 hours to fully charge a depleted battery. Your iLet’s battery life depends on the amount of usage. This includes the backlight and the amount of insulin delivered. You can improve the battery life of your iLet by turning off your Always On Display.

What if my iLet is not charging?

If your iLet is not charging, remove it from the charger for at least 10 seconds and then place it back on the charger. Your charger status light should be solid and a battery animation should appear on the touchscreen. For further guidance, refer to the video tutorials on our resources page. If your iLet is still not charging, please call our Customer Care team at (855) 745 3800 for 24/7 support.

WARNING: Only handle charging components with dry hands. Make sure that no liquids are present when charging your iLet Device.

Can I use any wireless charger with the iLet?

Use only the AC power adapter and USB cable provided with the iLet. If your AC power adapter or USB cable is damaged or lost, please contact our Customer Care team at (855) 745 3800 for a replacement.

WARNING: Use of accessories, cables, adapters, and chargers other than those specified or provided by the manufacturer of this equipment could result in increased electromagnetic emissions or decreased electromagnetic immunity of this equipment and result in improper operation.

Troubleshooting High or Low Glucose

Always have an appropriate emergency kit with you. Talk with your healthcare provider regarding what items the kit should include.

CAUTION: Always have an alternative method of administering insulin through a vial and syringe or insulin pen. Because your iLet Device uses only rapid-acting insulin, you will not have any long-acting insulin in your body.

CAUTION: Always have an alternative method of monitoring your BG in case your CGM malfunctions. Your iLet Device relies on BG entries when your CGM is unavailable.

When your Glucose Level is High

My blood glucose is high, how should I troubleshoot it?

Your iLet System will automatically deliver insulin in response to rising and high CGM glucose levels to bring your glucose level back down into range safely. This may take longer than you expect. DO NOT take additional insulin via injections, inhaler, or another pump while using the iLet System unless directed by your healthcare provider.

Make sure your iLet:

Is reading your CGM glucose level every five minutes and make sure your CGM is calibrated
Is delivering insulin doses in response to your CGM glucose level
Has enough battery power
Has enough insulin in the cartridge. Considering changing the insulin if it has been more than 3 days since you filled the cartridge
Does not have an active alarm that has stopped insulin dosing (i.e. occlusion alarm, complete cartridge change process, dosing stopped)
Is connected to the tubing and your infusion set
Is not leaking insulin anywhere between the iLet and your body (make sure there is no evidence of wetness or smell of insulin anywhere along the tubing and at the infusion site)
Has the ‘High Glucose’ alarm turned on. This will alert you when your CGM glucose has been more than 300 mg/dl for 90 minutes
If everything looks like it’s working, give the iLet time to respond to your glucose levels. Continue to monitor your glucose until it returns to a normal range.

WARNING: Do not ignore symptoms of hyperglycemia and hypoglycemmia. If your sensor glucose alerts or readings do not match your symptoms, measure your BG with a BG meter.

WARNING: Do not take insulin from other sources (e.g. via injection or another device) unless you have been advised to do so by your healthcare provider. Low BG levels may occur if insulin delivery outside of your iLet System is used because your iLet System will not be able to include it in its calculations, which may result in over-delivery of insulin. Contact your healthcare provider if you have concerns.

My CGM glucose is above 300 mg/dl for 90 minutes or more, what should I do?

Your iLet will alarm for your high glucose reading, and you should respond immediately! If your glucose level is this high for this long, that likely means that something is not working as it should

Check a fingerstick blood glucose reading to confirm your hyperglycemia
Check a fingerstick or urine ketone level as directed by your healthcare provider
Change your infusion set if you have ketones or as directed by your healthcare provider
Consult with your healthcare provider and your ketone action plan
Pay attention to high BG levels and respond to this alert quickly. Prolonged high BGs can cause late correction insulin dosing, and may cause the iLet to temporarily be more aggressive with insulin dosing to try and bring your glucose level back down. This can lead to hypoglycemia later.
Avoid long periods of high BGs by:
- Announcing for meals with carbohydrates.
- Maintaining the device so it always has enough insulin and battery.
- Keeping the High Glucose alert turned on.
- Setting the volume set to a level you can hear.
- Changing the infusion set if you have any doubt it is not working.
Unless specifically directed to do so by your healthcare provider, DO NOT take additional insulin the iLet does not know about (via injections, inhaler or another pump). This is dangerous and can result in severe hypoglycemia
NEVER use the meal announcement to correct a high blood glucose level. This is dangerous and can result in severe hypoglycmia. It will also affect your iLet’s learning about you, causing future meal announcement doses to be less effective
NEVER use the ‘Fill Tubing’ feature to correct a high blood glucose level. This is EXTREMELY DANGEROUS and will result in severe hypoglycemia

My blood glucose is high, should I announce a meal without eating to lower it?

No. You should NEVER use the meal announcement to correct a high blood glucose level. This is dangerous and will also affect your iLet’s learning about you.

CAUTION: It could lead to severe hypoglycemia and confuse the iLet System, causing future meal announcements to be less effective.

I just received my iLet and I already had high glucose, how can I help it learn my insulin needs?

You may need to take a few days and focus on helping the iLet learn about your meals. Here are a few tips:

Be consistent with how you decide the meal type and size. Only select Breakfast if you are eating breakfast, Lunch for your lunch and Dinner for your dinner
Only think about the carbs in your meal when selecting the size, NOT total size, fat, fiber or protein.
Try to eat meals that have carbs in the “Usual for me” range
Wait at least 4 hours before eating and announcing again
After a few days, your meal dose(s) should adapt. Consult your healthcare provider and/or certified iLet trainer with questions.

CAUTION: Announcing a larger meal than the actual size could lead to severe hypoglycemia and confuse the iLet System, causing future meal doses to be less effective.

When your Glucose Level is Low
Your iLet System will reduce or stop insulin dosing in response to low or falling CGM glucose levels. Always make sure to have rapid-acting carbohydrates and emergency glucagon available to respond to low glucose levels. Make sure your CGM alarms are turned on and you can hear them.

Your iLet System has four different alarms for low CGM glucose readings:

Alert

Urgent Low Glucose

Meaning

CGM glucose < 54 mg/dl

Response

Check a fingerstick blood glucose reading to confirm hypoglycemia

Alert

Low Glucose

Meaning

CGM glucose < 75 mg/dl

Response

Treat with up to 15 grams of rapid-acting carbohydrates. You may need to treat with fewer carbs than you are used to, because your iLet System will have already decreased and/or stopped insulin dosing
Always wait and give your glucose level a chance to respond to the rapid-acting carbohydrates before treating again
Check a fingerstick blood glucose reading approximately 15 minutes after treating. Your fingerstick glucose reading may show a rise in glucose level before your CGM glucose rises
Treat again with rapid-acting carbohydrates if your glucose level remains low
Continue to monitor until your glucose remains above 70 mg/dl

Alert

Glucose Falling Quickly

Meaning

CGM glucose < 100 mg/dl and falling 2 mg/dl/min or more

Response

Treat with rapid-acting carbohydrates to prevent a hypoglycemic event from happening. You may not need the full amount of carbohydrates you would usually use to prevent this low glucose event from happening

Alert

Urgent Low Soon

Meaning

CGM glucose will be < 54 mg/dl within 20 minutes

Response

If you see your CGM glucose level dropping, but your glucose is still above 100 mg/dl:

Do not treat with rapid-acting carbohydrates right away
Monitor your CGM glucose levels and be patient. Let the iLet System respond to your falling glucose levels
Make sure your Glucose Falling Quickly and Urgent Low Soon alarms are turned on. Consider treating with some rapid-acting carbohydrates when those alarms are triggered

Do not take too many carbohydrates to treat a low glucose level. This can cause your glucose to respond too much, leading to a high glucose level and triggering more insulin dosing from the iLet System. This may end up causing a “roller coaster” effect while your iLet System responds to both rising and falling glucose levels.

How to Treat Low Glucose Levels

Make sure to treat low glucose levels with only rapid-acting carbohydrates. These include juice, glucose tablets, Skittles, fruit chews, etc. These will provide the quick rise in BG that you need and, if taken in moderation, will not cause your BG to go too high or stay high for a long time.
Do not use slower acting carbohydrates to treat a low glucose level. These include things with more fat or protein, such as chocolate, peanut butter, crackers, etc. These types of foods will cause your BG to rise more slowly, leaving your BG too low for too long, and may cause higher BGs later when you don’t need it.
Do not take too many carbohydrates to treat a low glucose level. This can cause your glucose to respond too much, leading to a high glucose level and triggering more insulin dosing from the iLet. This may end up causing a “roller coaster” effect while your iLet responds to both rising and falling glucose levels.
NEVER announce a meal for carbohydrates used to treat a low BG.
If your BG is low before a meal, treat the low glucose with rapid-acting carbohydrates and allow the glucose to rise before you eat and announce for your meal. Once your glucose is within range, eat and announce the meal as planned. Choose the meal size based on the carbohydrate content of the meal, and do not consider the carbs used to treat the low.
- Do not include carbs used to treat lows in your meal announcement size. This will cause additional hypoglycemia.
- Do not announce your meal as smaller than what it actually is to get less insulin as a “reverse correction”. This will cause hyperglycemia because you won’t get enough insulin for the meal you are eating now. It may also cause the meal dose to adapt upwards, delivering too much insulin the next time you announce a meal and causing future hypoglycemia.
REMEMBER: Your CGM glucose may lag behind your blood glucose level when you are treating lows. Consider checking a fingerstick blood glucose level using a meter 15 minutes after treating and before deciding to treat again, as your glucose may have already returned to range.

I ate or drank carbohydrates to treat a low blood glucose. Should I announce these carbs as a meal?

No.

CAUTION: Do not announce a meal for carbohydrates used to treat low blood glucose. This could cause additional hypoglycemia and is dangerous.

Infusion Sets

Can I use a prefilled insulin cartridge with the iLet?

You can use a Fiasp^® PumpCart^® (insulin aspart) prefilled insulin cartridge with the iLet.

WARNING: Do not use cartridges other than those manufactured by Beta Bionics or the prefilled pharmacy dispensed drugs on the recommended list. Use of cartridges not recommended may affect the performance of your iLet System.

WARNING: Do not reuse iLet Cartridges.

How do I know that my infusion site is not working?

Signs that the infusion site is not working include:

The iLet is working properly (charged, has insulin, is reading CGM glucose levels) but CGM glucose levels continue to rise and/or stay high despite insulin dosing by the device
CGM glucose is above 300 mg/dl for 90 minutes or above 400 mg/dl once
Any evidence the site may be kinked, dislodged, or is leaking insulin (is wet, smells like insulin)

Consider changing your insulin cartridge, tubing, and cartridge connector in addition to your infusion site if there is any suspicion of leaking at the cartridge connector as well.

WARNING: Never fill your tubing while your tubing set is connected to your body. Always make sure that the tubing set is disconnected from your body before filling the tubing. Failure to do so can result in over delivery of insulin. This can cause serious injury or death from very low BG.

CAUTION: Check the insulin infusion set, tubing and tubing connections daily for any leaks, air bubbles or kinks. These may restrict or stop insulin delivery. This could result in under delivery of insulin and high BG could occur.

What kind of infusion sets are available for use with the iLet?

The following infusion sets are available for use with the iLet:

Convatec™ (6mm cannula length)
Convatec contact™ detach (6mm cannula length)

How often should I change my infusion set?

You should follow the infusion set manufacturer's guidance on how often to change your infusion set. You can find the manufacturer's guidance on the infusion set's original packaging.

CGM

What CGMs is the iLet compatible with?

The iLet is currently compatible with the Dexcom G6 and Dexcom G7.

WARNING: The iLet Device is only for use with a compatible CGM. When using the iLet Device, wear an iCGM.

WARNING: Do not inject insulin or insert an insulin infusion set within 3 inches from the CGM sensor. The insulin delivered through the insulin infusion set might affect sensor accuracy, resulting in over/under delivery of insulin. This can cause severe hypoglycemia or hyperglycemia events.

I am having trouble pairing my iLet to my CGM, what should I do?

Refer to the above text and video tutorials for guidance on pairing your CGM to your iLet. If you continue to have difficulty, call our Customer Care team at (855) 745 3800, or Dexcom at (888) 738 3636 for 24/7 support.

WARNING: Do not separate the CGM sensor and iLet Device by more than 20 feet. The range from the sensor to the iLet Device is less than 20 feet without obstruction.

WARNING: The iLet System is intended to dose insulin based on CGM data. In the events where CGM stops providing glucose data to the iLet System, BG-run mode will serve to continue a safe level of insulin delivery, but it will not provide the same level of glucose control as the iLet System with CGM. BG-run use SHOULD BE TEMPORARY and always for the shortest duration possible with the goal to resume CGM-guided iLet System insulin dosing AS SOON AS POSSIBLE.

WARNING: The iLet Device cannot connect wirelessly with a self-monitoring blood glucose device, and manual BG value entries must be performed when the iLet Device alerts you for a BG entry.

CAUTION: If your CGM is offline for an extended period of time, dosing will stop and you should switch to alternative therapy until you are able to reconnect to a CGM sensor. A countdown timer will appear before dosing would stop.

I am having issues with my Dexcom mobile app, what should I do?

Call Dexcom at (888) 738 3636 for 24/7 support on your Dexcom mobile application.

What happens if my CGM fails or falls off? How do I order a replacement sensor?

Occasionally, your CGM may stop communicating or working. You should replace your sensor immediately, if possible. If you are not able to replace your sensor, your iLet will enter BG-run mode. This means your iLet can temporarily work by manually entering fingerstick blood glucose (BG) readings. For guidance, see the CGM Offline (BG-Run Mode) tutorial on our resources page. You should contact your CGM manufacturer to order replacement sensors.

WARNING: The iLet Device cannot connect wirelessly with a self-monitoring blood glucose device, and manual BG value entries must be performed when the iLet Device alerts you for a BG entry.

CAUTION: If your CGM is offline for an extended period of time, dosing will stop and you should switch to alternative therapy until you are ablet o reconnect to a CGM sensor. A countdown timer will appear before dosing would stop.

Didn’t find what you were looking for?

Beta Bionics is a people-focused company dedicated to making diabetes easier for everyone, every day.

Safety Information – The iLet Bionic Pancreas System is indicated for use by people with type 1 diabetes 6 years of age and older. The iLet Bionic Pancreas requires prescription by a physician. Refer to the iLet Bionic Pancreas System User Guide at www.betabionics.com/resouces/user-guides, or for complete safety information including indications, contraindications, warnings, cautions, compatible devices, compatible drugs and instructions, refer to www.betabionics.com/resources/safety. DO NOT start to use the iLet Bionic Pancreas System without adequate training. Incorrect use may result in over-delivery or under-delivery of insulin, which could lead to hypoglycemia or hyperglycemia.

Medical Disclaimer – This website is for information only and is not a substitute for medical advice and/or services from a healthcare provider. All personal health care decisions and treatment should be discussed with a healthcare provider who is familiar with your individual needs.