Specifications:
The CTR52U is a multipurpose device functioning as a counter, rate meter, and timer. It operates on a supply voltage of 10 to 30 V DC with reverse polarity protection and a maximum current consumption of 40 mA. The device features a 6-digit red 7-segment LED display, 8 mm high, and data is backed up using EEPROM. The housing dimensions are 48 x 24 mm, compliant with DIN 43 700 standards, and it is available in grey (RAL 7021). Inputs are programmable for npn or pnp polarity, with an input resistance of approximately 5 kΩ. The counting frequency can reach up to 60 kHz, adjustable to 30 Hz, with a reset time of 5 ms. The resolution ranges from 0.001 seconds to 999999 hours. Input switching levels vary between standard and 5 V versions, with accuracy under 0.1% for frequency display/rate meter.

Operating Modes:
The device supports multiple operating modes, including electronic totalizer and frequency counter, counter with two totalizing ranges, totalizer and timer, and timer with two time ranges.

Ordering Information:
The CTR52U series offers standard and 5V input levels. Accessories include NEMA4 wall mount enclosures and DIN Rail Mounting Frames.

Features:
The CTR52U is a universal device with dual functions, suitable as a maintenance counter. It includes two pulse or time counters for measuring daily and total values, a count frequency of 60 kHz, and four dual functions in one device, reducing inventory costs. It allows separate multiplication and scaling factors for pulse and frequency counters and can be programmed as Total/Tacho, 2 Totalizers, Total/Timer, or 2 Timers.

Environmental and Compliance:
The device operates in ambient temperatures from -20 to +50 °C and can be stored between -25 to +70 °C. It complies with EMC directive 89/36/EWG, with immunity to interference per EN 61000-6-4/EN 55 011 class B and emitted interference per EN 61000-6-2. It offers IP65 protection from the front and weighs approximately 50 g.

Connections and Delivery:
Connections include terminals for 10 to 30 V DC, 0 V GND, INP A, INP B, and Reset. The delivery includes a digital display, panel mounting clip, bezels for screw and clip mounting, a seal, and an instructions manual. The panel cut-out dimensions are specified for proper installation.