| Comet T3118 Specifications | 
        
        
            | Technical parameters | 
            Value | 
        
        
            | Measured Value | 
            Voltage | 
        
        
            | Operating temperature range | 
            -30 to +70°C | 
        
        
            | Measurement accuracy | 
            ±0.2% FS | 
        
        
            | Resolution of voltage input | 
            13 bits (8192 levels) | 
        
        
            | Signal character at binary input | 
            from potential-less contact or two-state voltage signal | 
        
        
            | Minimum pulse duration at binary input | 
            500 ms (shorter pulses may not be recorded) | 
        
        
            | Maximum frequency at binary input | 
            0.5 Hz (i.e. maximum 5 pulses for 10 s) | 
        
        
            | Power current through contact at binary input | 
            3 uA (contact closed) | 
        
        
            | Voltage accross open contact at binary input | 
            maximum 3.6 V | 
        
        
            | Low voltage level at binary input | 
            0 to +0.2 V (maximum current from the input 3 uA | 
        
        
            | High voltage level at binary input | 
            +3.0 to +30 V (maximum current to the input 100 nA | 
        
        
            | Built-in connector for input signals | 
            D-Sub 9 pins, male | 
        
        
            | Real time clock | 
            year, leap year, month, day, hour, minute, second | 
        
        
            | Data logging interval | 
            adjustable from 10s to 24h | 
        
        
            | Display and alarm refresh | 
            each 10s | 
        
        
            | Total memory capacity | 
            32 504 records in noncyclic logging mode, 28 896 records in cyclic logging mode | 
        
        
            | Data logging modes | 
            noncyclic - data logging stops after filling the memory cyclic - after filling memory oldest data is overwritten by new | 
        
        
            | Power | 
            Lithium battery 3,6V, size AA | 
        
        
            | Typical battery life in low-power mode (1 minute sampling) | 
            6 years | 
        
        
            | Battery life in continuous on-line mode with interval 1 minute | 
            4 years | 
        
        
            | Battery life in continuous on-line mode with interval 10 second | 
            1 year | 
        
        
            | IP protection | 
            IP67 - protected against influence of temporary immersion into water | 
        
        
            | Dimensions without connectors | 
            93x64x29mm | 
        
        
            | Weight including battery | 
            approximately 130g | 
        
        
            | Warranty | 
            3 years |