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| Dover Flexo Electronics Inc. | Rochester, NH | |
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.jpg) | MAC MultiAmplifier Card for Tension Indication The MAC is an eight-channel amplifier - interface consisting of eight independent tension amplifiers on a single circuit card. The MAC provides excitation voltage to connected tension transducer pairs, and puts out a 0-to-10Vdc signal proportional to tension for each pair of transducer signal inputs. The 0-to-10V outputs can be used as inputs to drives, PLC's or other tension monitoring or closed-loop tension control devices. Damped 0 - 1mA outputs are also available to drive tension meters. The 5.5" x 7" MAC Card installs flat in the machine's control panel. All external connections are by terminal strips. Designed initially for the printing industry, the Mac MultiAmplifier card helps reduce and eliminate the incidence of web breaks on running presses. The MAC also performs well in any application where process web tension needs to be monitored from multiple locations. The TLS (tension limit switch) option allows high and low alarm trip points to be set that warn the press operator if running tension in a particular zone moves outside set operating limits. The advantages of the MAC MultiAmplifier Card when compared to single channel amplifier/ interface cards are: 1) the ability to read out tension from sensor points along an entire production line from one location, either remotely or at the machine; and, 2) the lower cost of installation versus a single, dedicated tension interface/amplifier for each sensor point. | ||
.jpg) | iAmp Inline Tension Amplifier The iAmp is a compact amplifier / interface module that connects directly (via standard industrial connectors) to DFE tension transducers, or "inline" on transducer connector cables. iAmp's function is to convert millivolt-level transducer output signals to a 0-to-10 Volt DC signal proportional to tension and a 0-to-1mA signal proportional to tension. Using an iAmp module is a simple alternative to mounting a larger, less flexible electronics device--usually a transducer-interface circuit card or complete indication package--on a press or machine frame for tension monitoring. Because it is easily hidden, the iAmp is an ideal tension amplifier for OEMs and system integrators. Easy to zero and calibrate, the iAmp is powered by 24 VDC, supplies a 0-to-5V excitation signal to the transducers it connects to, and accepts DFE transducer output from 0-to-500 mVDC. Each user-friendly, lock-fit amplifier module supplies a 0-to-1 mA signal proportional to tension for analog meter readout, and 0-to-10VDC for direct use by a motor-drive, PLC or other control device. iAmp is available in a direct-connect version to mount directly onto DFE transducer connectors. It is also available as an 'inline' amplifier to be plugged onto transducer connector cables. Male iAmp connectors mate to DFE's standard cable-end connectors for their corresponding transducer types. | ||
.jpg) | MODEL TI11 DUAL INDICATOR The Model TI11 Dual Tension Indicator is used with one or two pair of transducers to display web tension in more than one zone at a time on analog or digital meters. One indicator card contains two independent tension circuits with independent calibration adjustments. IEC/ANSI/IEEE type 2 plug-in card quickly installs into standard size 3U 19 inch rack or into optional mounting module. | ||
.jpg) | INTRINSICALLY SAFE AMPLIFIER An intrinsically safe interface between transducers and a Dover controller, drive system or computer. FireGuard is for use when tension transducers and analog tension meter (optional) are located in hazardous Class I Division 1 or 2 area. Similar to the TrueTension Indicators in function, the FireGuard also reduces risk of fire or explosion. | ||
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