Compumatic MP550 Time Clock with Two Synchronized Bells
Description
The Compumatic MP550 two bell kit is an electronic punch clock system designed to record employee time while automatically activating two bells at scheduled times. It is built around the Compumatic MP550 front-loading time clock and is used to automate shift changes, breaks, and lunch periods without requiring separate timers or software. Scheduling and signal control are handled directly within the clock, allowing stand-alone operation.
This configuration includes the MP550 time clock with a factory-installed signal kit, external power supply, wiring, and two 110V bells for synchronized signaling. Once programmed, the clock sends an external signal to both bells simultaneously at scheduled times, improving sound coverage across larger work areas. Signal duration is adjustable through the clock’s internal programming, allowing different alert lengths for warning or shift-change signals. The external signal function operates through an internal control board designed for timed signaling applications.
The MP550 platform is commonly used where a simple time card workflow is preferred but consistent audible signaling is required. Typical installations include shops, warehouses, maintenance departments, and production areas where employees may not always be watching the clock. The integrated signal system keeps time recording and shift signaling controlled from a single device, simplifying installation and reducing system complexity compared to separate timers and relay systems.
Compatibility and Usage
- Compumatic MP550 electronic punch clock platform
- Factory-installed signal kit for scheduled bell activation
- Includes two synchronized 110V bells
- Stand-alone operation — no software or network required
- Used for shift changes, breaks, and scheduled alerts
- Signal duration adjustable through internal programming
FAQ
Why use two bells instead of one?
Two bells improve sound coverage in larger or noisy environments where a single bell may not be heard clearly.
Does the MP550 require a computer to operate?
No. Programming and scheduling are performed directly at the clock.
Can existing bells be used instead of the included ones?
Yes. The signal kit can activate most standard 110V bell or buzzer devices.
Related Items
- MP550 Replacement Ribbon
- Front-Loading Time Cards (2-Week Format)
- 25-Slot Time Card Rack
- MP550 Power Pack
- Additional 6-Inch 110V Fire Bell
- Bell Wire (25 ft / 50 ft / 100 ft / 250 ft)
These Systems Pay For Themselves In Just Two Weeks.
Example:
You are in manufacturing, you have 10 or more employees.
They drag out break and lunch time by 2 to 3 minutes, every day, two breaks, one lunch a day. Worse yet, you have "smokers"
When the lunch ends, someone has to shout "Back to work!"
Stop the drama, the bell becomes "the bad guy." Not you or a manager.
Install a simple - or advanced - bell or buzzer system, the bell becomes that "bad guy."
They won't miss a break, they will take lunch on time, they will start when they should, they will come back, like trained people, when they are supposed to.
You will collect back, using very conservative numbers, a minimum of 4 minutes per day per person.
Doesn't sound like much, you would be wrong.
Using extremely conservative numbers, the math won't lie:
1 employee, $20 per hour WITH taxes and benefits. (You're paying about $20 up front, you can't avoid the taxes, PTO, insurances):
That's 33 cents labor cost, one low-pay employee, per minute.
Recover 1 minute of break time. 2 minutes of lunch time. 1 more minute of second break.
Remember, they then work until the END OF DAY with the bell system, not slowing down 10 minutes ahead of time. That's additional work that they get done.
We can count on 4 minutes absolute minimum time recovered, per man, per day. 4x.34=$1.36 per day. 5 days: $6.80 per week.
52 weeks: $352 per year per employee in recovered labor time. Every year.
$352 x 10 employees: $3,520. Every year. And the shop becomes more organized.