Model 57 Electronic LCD Hour/Counter/Maintenance Meter Description
The Redington Model 57 family of LCD indicators offers a variety of options to fulfill your count/hour meter requirements. This indicator can display hours, counts or both with a single-line shared display. This model is available with an LED indication for service and relay or transistor output. You decide which value should be displayed permanently and which one will be in the background. The background indication will appear for approximately 10 seconds every time you apply power to the meter. When using a counter and an hour meter in combination, the counter will count the number of input pulses while the hour meter will record the total duration of the input pulses. The Redi-Alert Service Interval feature notifies operators of service requirements when service intervals are a function of the number of events or time. If a Redi-Alert Service Interval is specified, the display will show the count (or time) remaining until the service interval is reached. The RediAlert Service Interval feature can be considered to be a down-counter (or down-timer) since the count (or time) that is displayed shows what remains until service is required. When the Redi-Alert Service Interval gets to zero, the indicator will flash the display. If the Redi-Alert Service Interval is not reset, the indicator will continue to operate, and the display will show negative counts (or time) indicating how far the system has gone past the service interval. If the prewarn feature is included, the display will begin flashing when the prewarn count (or time) is reached. When the Service Interval is in the background, it will come to the foreground when it reaches the service interval or the prewarn. Resetting the indicator resets the Service Interval to its specified setting and returns the Service Interval to the background. The LED indicator and output will come on once the Redi-Alert is reached and stay on until reset. The Model 57 family also offers the option of an additional display for those applications that require dual indications. Features
� � � � � � � � � � Choice of single or dual displays Display counts/hours or both Factory programmed service alert Divide/multiply on inputs (factory set) With or without reset Output signal: none, relay or transistor Service indicator available DC input voltages IP 65 sealed front panel EEPROM for memory (no battery) Options
� � � � � � � Count speed Reset type Indication of time/count Type of output One or two displays LED indication for service Maintenance Redi-Alert output Specifications
Display: Quartz Accuracy: Input Voltage: Special Voltages: Current Consumption: Relay Contact: Transistor Output: Operating Temperature : Large 7 digit, 0.28 [7mm], LCD 1 or 2 displays 0.01% over entire voltage & temp. range 12-24 VDC/ �25% 24 VDC/ �25% - with relay output 24-48 VDC/ �25% 12,36,48 VDC/ �25%-with relay output 12-24 VDC/