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RATE/TOTAL/BATCH METERSINFINITY SERIES INF7
Rate may be displayed in engineering units. In addition, average rate, which is a running average that works like a filter, is selectable to help eliminate noise, yet does not introduce a long delay for a step change in the input frequency response. With the optional analog input board, the INF7 can be configured to accept a signal, such as 4-20 mA dc, from any typical differential flow transmitter and extract the square root of this signal, providing a linear display in any engineering units desired. The INF7 can also be programmed as a single input batch controller. It can simultaneously count the batch, number of batches completed, and the grand total of pulses received. In addition, it has an internal timer for process time measurement displayed in HH MM SS format. SPECIFICATIONS Accuracy: ▒0.1% @ 15-35░C Step Response: 10 to 90% full-scale, 50 msec Turndown Ratio: max. offset divided by minimum span, 1000 with 0.1% resolution; 100 with 0.01% resolution Power: 115 or 230 Vac, 49-400 Hz; 10 to 32 Vdc Power Consumption: 6 W nominal, 10 W max. SIGNAL CONDITIONERS (Non-isolated TTL-level pulse input standard) Threshold: 0.7 to 2.0 V Frequency Ranges: 0.2 Hz to 20 kHz Protection Level: 24 V Trigger Slope: Positive Connection (TTL): Plug-in screw terminal Contact Closure Connection: plug-in screw terminal NPN Open Collector Connection: plug-in screw terminal Sensor Excitation (NPN): 16-30 V @ 70 mA non-regulated ISOLATED PULSE INPUT WITH EXCITATION (Voltage input and passive magnetic pickup most popular) Connection: plug-in screw terminal Maximum Signal: 60 V rms with protection to 240 V Sensitivity: 20 mV rms Input Impedance: 75 K min Hysteresis: 50 mV NPN OPEN-COLLECTOR INPUT Connection: plug-in screw terminal Sensor Excitation: 12 V regulated NAMUR INPUT Connection: plug-in screw terminal Sensor Excitation: 8.2 V Internal Load/Source Impedance: 1 kOhm Activated: <1 mA Deactivated: >3 mA CONTACT-CLOSURE INPUT Connection: plug-in screw terminal Sensor Excitation: 12 V regulated Frequency Range: 10 on/off per second ISOLATED ANALOG INPUT (optional) Connection: plug-in screw terminal Signal Range(s): 0-5 Vdc, 1-5 Vdc, 0-10 Vdc, 0-1 mA dc, 4-20 mA dc Isolation, SIG GND to DIG GND: 354 Vp Low-Level Shutoff: programmable Non-Linearity Max.: 0.3% FS Accuracy at 25░C: 0.05% FS Temperature Coefficient: 50 ppm/░C To Order (Specify Model No.) Prices Shown in U.S. Dollars
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Rate and Total Simultaneously