The user interface unit (UIU) is a device for remote access to STS payment meters.
If meters are mounted in a box or on a pole they can not be accessed for token input. In this case a UIU is necessary for STS operations.
Beside of token transmission the UIU provides various information about meter status and consumption.
Depending on the meter vendor a UIU is also named as CIU (customer interface unit). The basic functions are the same.
| item | parameter |
|---|---|
| Model | The model type follows the meter type. It’s indicated above the display. Example: CL710K11B |
| Mains power supply | 220 V to 240 V |
| Backup power supply | 4 x 1.5 V AAA battery |
| Communication interface | RS-485, wired connection/radio frequency (RF)/power line communication (G3 PLC), the interface is depending on the order |
| Ingress protection | IP 51 |
| Operating temperature | -25 °C to +70 °C |
| LCD display | LCD size: 57 mm x 23 mm Digit size: 10 mm x 5 mm Backlight on activation |
| Dimensions | 144 mm x 80 mm x 42 mm |
| Mounting | wall mounted, with fixing cradle |
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Editor's note: This article was originally published in March 2020 and has been updated for comprehensiveness.
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how do i silence the alarm sound when the unit is low and about to finish
For CLOU meters, press any key on the keypad. You can also read here.
Hi sir please help me reset my meter or clear the data
It’s the nature of all kinds of metering devices used for billing purpose, that they can’t be reset or cleared. Even the manufactures have no possibility, once the device is leaving the factory.
Hi sir my ciu is showing error what should I typed
Thank you for your comment. For CLOU meters, errors have eight kinds, for example, TOKEN format error or overflow. We have published an article to explain errors in detail. Please click here and read to find your answer out.