Series 1200 Recorders are available as single and dual pen models using 200 mm width chart paper inputs of up to 5 volts. Automatic servo shutdown circuit protects against damage to recorder circuitry due to off-scale input signals. Response time of 0.25 seconds full scale is ideal for use with trace analysis instrumentation. Internal crystal controlled chart drive may be remotely programmed by pulse train (TTL). Chart may be run in reverse via external control or manually advanced. Zero control adjusts baseline reference from -100% to +100% for each channel of 1200 Series recorders. Event marker for on-line chart annotation. Electronic pen lift and additional event marking control capabilities. Operating ambient temperature range: 41°F to 104°F (5°C to 40°C); 35 to 80Þ relative humidity, non-condensing. Applications: Monitor UV or fluorescence detector response (HPLC), Gas chromatography (GC) trace analysis monitoring, UV/VIS Spectrophotometers: document kinetic studies and spectrum scans, Electrochemistry titration plots. Chart paper and pens included. Specifications: Input Range: 1,2,5,10,20,50,100,200,500mV & 1,2,5V, Input Impedance: 2.5 MO, Chart Speeds (cm/min or hr): 1,2,3,6,10,15,20,30, Accuracy: ± 0.5% overall limit of error, Response Time: 0.4 sec. full scale, Shipping Weight: 15 Lbs.