Unlike older mechanical time switches that could drift and get out of sync (causing your "night" rate to start at 2 AM instead of midnight), the "Radio" part of the Series K ensures it is always perfectly synced with the National Grid’s clock. Troubleshooting Tales
The Series K typically works with a meter that shows two different readings: one for the "Normal" (day) rate and one for the "Low" (night) rate. The Switch Indicator:
Long-time users often share two main stories about these units: The Rolling Reset: horstmann radio telemeter series k manual
Horstmann Radio Telemeter Series K is more than just a piece of hardware; it’s a relic from the early days of "smart" energy management in the UK. The Backstory: The "Brain" of the Meter
If you’ve found yourself staring at this box in a dark cupboard, here is the "story" told by its operation manual: The Dual Display: Unlike older mechanical time switches that could drift
The meter display only has five digits. Once you hit 99,999 units, it rolls back to zero. Many homeowners think their meter is broken when it suddenly shows a tiny number after years of high readings. The Signal Loss:
The manual highlights a small arrow or indicator on the screen. This tells you which rate is currently active. If you see the arrow next to "Rate 2" or "Low," you are currently paying less for your power. Radio Accuracy: The Backstory: The "Brain" of the Meter If
In the late 20th century, electricity suppliers needed a way to manage high-demand periods. Instead of relying on a human to manually flick a switch at your house, they used the Radio Telemeter Series K