Quick Answer: Biomedical equipment maintenance runs on planned preventive maintenance (PPM), which gives each device a set number of visits a year, a checklist that ends in a recorded test and a logbook that counts breakdown time. India's national guideline sets two or four visits a year by device type and scores the programme on devices found working.
Key points covered in this article:
Two or four PM visits a year, by device
The order a state SOP runs a PM visit
Uptime, not visits logged, is the scorecard
Logbook fields that make downtime countable
Biomedical equipment maintenance works when every device has a set number of planned preventive maintenance (PPM) visits a year, a checklist that ends in a recorded test and a logbook entry that outlasts the engineer. Without those three, a PPM programme is a calendar nobody can audit.
A biomedical service company often keeps visit dates in Excel, the hospital's biomed engineer keeps a paper logbook and the AMC renewal date sits in a third file. The service head learns a ventilator is overdue when the ICU calls.
India's national equipment guideline from the National Health Systems Resource Centre (NHSRC) plans on an average useful life of 10 years, so each device spends a decade inside someone's PM roster. This guide covers service frequency, checklists and logbooks, and leaves contract basics to our guide on how AMC and CMC contracts differ.
TL; DR
PPM is the middle of three layers, between the user's daily check and breakdown repair.
India's programme scores devices found working, so a logged visit proves nothing alone.
Visit counts differ by device type, so build the roster per device, not per site.
Every visit ends with a recorded performance test, a dated sticker and a countersigned checklist.
Breakdown start, fix time and total downtime must be written down, or uptime cannot be counted.
One asset record holds the device, its install date and when warranty and AMC end.
What Is PPM in Medical Equipment?
PPM stands for planned preventive maintenance, which means servicing a medical device at fixed intervals, or as its manufacturer recommends, so a fault is found at a scheduled visit and not during a procedure. In biomedical equipment maintenance it is the middle of three layers of work, listed below, and the other two decide whether it succeeds. WHO's maintenance programme overview splits inspection into performance checks and safety checks, and a PPM visit carries both.
User check. The user inspects the device, switches it on and off, runs a performance test and notes it in the logbook. In casualty, intensive care and the OT, life-saving devices are checked daily with a standby unit ready.
PPM visit. The service engineer services the device at the manufacturer's interval and calibrates it where needed.
Breakdown repair. The user labels the faulty device, logs the call and the service engineer repairs it.
PPM only works when it reads from the other two layers. An engineer who opens the user's logbook and the breakdown history before a visit knows what to test first.
What Are the Recommended Guidelines for Equipment Maintenance?
As of 2026, India's reference is the NHSRC guideline on equipment maintenance, calibration and testing, posted in January 2025, which supports the National Biomedical Equipment Management and Maintenance Programme (BMMP). It asks for PM at the manufacturer's intervals, a quarterly hospital equipment committee and a fresh AMC or CMC process started three months before the old one ends.
The pages that rank for biomedical equipment maintenance are mostly course material, guideline PDFs and vendor pages, and they describe visits. The national programme scores the outcome, and a visit count cannot say whether a device will start tomorrow.
📊 **Uptime targets are 80% at primary health centres, 90% at community health centres and 95% at district hospitals**, counted as devices found working at census divided by devices in the inventory. A second measure is the share of inventory under warranty, AMC or CMC. Per NHSRC, January 2025.
Problem. A PM visit is marked done, yet the ventilator fails two weeks later and nobody can say what the visit tested. Visits logged is not the same as devices up.
Fix. End every visit with a recorded performance test. Count a device as up only when someone has found it working.
Problem. The warranty ends on a Friday and nobody renews the AMC. PM visits stop, and the device runs unserviced until a breakdown call.
Fix. Start the renewal three months before expiry, as the guideline asks, and keep the AMC end date on the asset record. NHSRC says specialised life-saving devices should preferably come with two years of warranty and eight years of CMC.
A service company should report the same two numbers for every customer, devices covered and devices found working. Our AMC renewal guide covers the lapse that stops PM visits.
How Often Should Medical Equipment Be Serviced?
India's national schedule services medical equipment two or four times a year depending on the device, and the manufacturer's manual has the final say. Vendor guides that give one interval for every device, such as every six to twelve months, miss that spread.
📊 **NHSRC's annexure lists 117 device types, with 35 on four PM visits a year and 82 on two**, by our count of the table. The list covers equipment under the Indian Public Health Standards 2022. Per NHSRC, January 2025.
Visits a year | Devices on the NHSRC list (examples) | Device types |
4 (quarterly) | Ventilators, infusion pumps, multi-parameter monitors, dialysis machines, fixed X-ray, ultrasound, autoclaves | 35 |
2 (half-yearly) | ECG machines, defibrillators, oxygen concentrators, pulse oximeters, OT lights and tables, centrifuges | 82 |
Treat the table as the starting roster for biomedical equipment maintenance, and check each device against its manual. The list is written for public health facilities, so a private hospital should read it as a baseline. Take an installed base of 300 devices with 60 on four visits and 240 on two, which owes 720 PM visits a year, or 60 a month, before the first breakdown call.
📅 Sixty PM visits a month living in a spreadsheet? See how recurring PM visits run in DGlide.
What Is a PPM Checklist?
A PPM checklist is the per-device list of checks that closes a biomedical equipment maintenance visit, and its last line is a recorded performance test. It covers the performance and safety checks from the WHO split, written for one device type at a time. A state biomedical maintenance SOP from Chhattisgarh shows how a service provider runs the visit.
The service provider issues a monthly work order to the technician from an annual schedule that the District Medical Officers approved two months before PM started.
The technician visits, and the department in charge gives access to the device.
The technician services the device, runs a performance test and writes the readings on the PM and calibration checklist.
A sticker goes on the device with the date done and the next due date.
The nodal officer or department in charge acknowledges the checklist.
The reports go to the state office, which updates the dashboard.
Two rules in that SOP are worth copying. A device under repair gets its PM right after the repair or in the next month's roster. A device missing from its registered location goes into the service report, is chased for a month and then enters the beyond-economic-repair process.
What Goes in a Medical Equipment Logbook?
A medical equipment logbook records each PM or calibration visit, the service engineer's remarks, when a breakdown started, when it was fixed, the total downtime and the head of department's sign-off. These are the working columns in NHSRC's logbook format, and they are what make uptime countable in biomedical equipment maintenance.
What does the inventory master record add?
It holds each device with its make, model and serial number, its install date and when its warranty and AMC end. Joined with the logbook, it gives the two numbers NHSRC scores, uptime and contract cover.
What goes wrong when they live in three files?
In the equipment and AMC businesses we work with, the roster, the visit record and the contract dates usually sit in three different places. A device that fails the week its AMC lapses then has no clear owner. McKinsey reports that a leading water treatment company raised technician capacity by 40 percent and cut overtime by 6 percent after adopting a digital scheduling tool, which is not a medical case but is the same scheduling problem.
Keep one asset record per device and write breakdown times on it, not in a message thread. Our guide to machine maintenance tracking software covers the same per-asset history for plants.
🗂️ Logbook in one file and AMC dates in another? Book a 15-minute walk-through of one asset's service history.
Why Should You Choose DGlide?
A biomedical service team with AMC customers needs the PM roster, the visit record and the contract dates in one place. DGlide runs field service for equipment and AMC-driven businesses on a configurable operations platform.
Recurring PM. Each device's visits recur on the schedule you set, so the roster leaves Excel.
Work Order Management. Every visit is a work order with the asset, customer, priority and history attached.
Scheduling & Dispatch. Engineers are assigned by availability, location or expertise.
Prompt Lasers, a machinery maker on DGlide, cut response time from 40+ minutes to 8, and most teams go live in weeks with pricing fixed to the agreed scope. Each visit closes with customer confirmation.
Versus Excel and paper logbooks. One record per device replaces three files.
Versus a rigid FSM suite. Pricing stays fixed to scope, with no surprise add-ons.
Book a free 15-minute demo and bring one customer's device list.
Conclusion
A PPM programme is a roster, a checklist and a logbook, and the roster comes first because visit counts differ by device. It is judged by devices found working, so each visit has to end in a recorded test and a dated sticker.
Start from the inventory by listing every device with its manufacturer interval and its contract end date. Then give each engineer a monthly list, and bring uptime and contract cover to the next quarterly review.
FAQs
Who should run PPM, the hospital biomed team or a service company?
A hospital biomed team or a service company can each run PPM. India's programme allows in-house and outsourced models. Hospital staff keep the daily checks and the logbook. A service company runs scheduled visits under an AMC or CMC.
Which software tracks PPM visits and AMC renewals?
Software that holds one record per device tracks PPM visits and AMC renewals best. It should schedule recurring visits and show contract end dates. A spreadsheet fails as visits, contracts and sites multiply. Our AMC software guide lists what to check first.
What happens if a device is missing during a PPM visit?
A missing device is recorded in the service report during the PPM visit. The facility's nodal officer acknowledges the entry. The service provider follows up for a month under Chhattisgarh's SOP. A device that stays missing enters the beyond-economic-repair process.
When should a medical device be condemned?
A medical device should be condemned when spares run out and upkeep stops paying. An old device may still work but cost more to maintain. NHSRC says such equipment can be more liability than benefit. The hospital equipment committee recommends condemnation.
