UL (C and US)
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2780-230
The Model 2780 AC Current Transducer is designed to accept an AC current input, and provide a proportional DC voltage output. A linear transformer input is coupled to a solid-state output amplifier. The Model 2780 is powered by a 230/240 VAC source, and is socket-mounted for ease of use. Model 2780 Current Transducers can be used with computer and programmable controls to provide: motor and power control; supervisory data acquisition; load monitoring; feedback control; energy management. -
29
Model 29 Frequency Monitor has a display that shows the frequency with an accuracy of +/- 0.5%. The display is updated every second and re-initialized every 30 seconds. This unit has a user selectable relay option for High-Low or DPDT. It can also be user-selected to energize on fault or de-energize on fault. The user can select automatic or manual restart on the Model 29. The SG version of the Model 29 has silver with gold flash contacts for low current applications Model 29 Frequency Monitor can be restored to factory defaults. -
4042
The Model 4042 Liquid Level Controller monitors, displays and controls water level up to 34.6 feet, in a tank or reservoir. The Model 4042 operates from the 4-20mA input signal provided by the Time Mark Model 450 Pressure Transducer. This 4-20mA signal represents the water level to be controlled, where 4mA equals zero feet, and 20mA equals 34.6 feet. A liquid crystal display (LCD) is provided to show the water level during normal operations, and the set-point values during calibration. There are four user-adjustable trip set-points. As the water level rises above each trip point setting, the front panel LED for that level illuminates, and the corresponding output relay energizes. A 4-20mA output, which tracks the 4-20mA input, is also provided. This signal output can be rescaled to different ranges of level by the user. A test control, that stimulates an input signal, is available on the front panel. The test control is useful for checking the trip set-points, and overall system operation. -
4052
The Model 4052 Pump-Down Controller provides total control for duplex pumping systems. The Model 4052 monitors, controls and displays the liquid level in a tank or reservoir, up to a depth of 34.6 feet. The input to the Model 4052 can be from any 2 or 3-wire transducer with a 4-20mA output that represents 0 to 34.6 feet. A 24VDC regulated probe supply is included. A Level Simulator is provided to aid in programming these five set points; Low Alarm, Pumps Off, Level 1, Level 2 and High Alarm. A universal zero to 30 second On Delay can be programmed to prevent outputs from closing due to input fluctuations caused by turbulent conditions. An additional 4-20mA output with zero and span controls is provided for a chart recorder or other external device. Four heavy-duty 10 amp, 120V contacts are provided for pump control and alarm activation. An auto-dialer or other emergency device can be activated with the SPDT power loss relay. This relay is held open when power is applied. Communications capable via RS-485/Modbus. Pump outputs include duplex alternation as well as hand-off-auto switches. Pump run-time can be displayed for each pump with tenth of an hour resolution, up to 99,999. 9 hours.The Model 4052 can be panel-mounted (11 1/8 in. x 4 5/8 in.), same as Time Mark Models 403, 404 and 4042, or surface-mounted using the optional surface-mounting kit, Model 4000.
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4062
The Model 4062 Pump-Up Controller provides total control for duplex pumping systems. The Model 4062 monitors, controls and displays the liquid level in a tank or reservoir, up to a depth of 34.6 feet. The input to the Model 4062 can be from any 2 or 3-wire transducer with a 4-20mA output that represents 0 to 34.6 feet. A 24VDC regulated probe supply is included. A Level Simulator is provided to aid in programming these five set points; Low Alarm, Level 2, Level 1, Pumps Off and High Alarm. A universal zero to 30 second On Delay can be programmed to prevent outputs from closing due to input fluctuations caused by turbulent conditions. An additional 4-20mA output with zero and span controls is provided for a chart recorder or other external device. Four heavy-duty 10 amp, 120V contacts are provided for pump control and alarm activation. An auto-dialer or other emergency device can be activated with the SPDT power loss relay. This relay is held open when power is applied. Communications capable via RS-485/Modbus. Pump outputs include duplex alternation as well as hand-off-auto switches. Pump run-time can be displayed for each pump with tenth of an hour resolution, up to 99,999. 9 hours. The Model 4062 can be panel-mounted (11 1/8 x 4 5/8), same as Time Mark Models 403, 404, 4042 and 4052, or surface-mounted using the optional surface-mounting kit, Model 4000. -
4082
The Model 4082 Liquid Level Controller monitors, displays and controls water level up to 34.6 feet in a tank or reservoir. The Model 4082 operates from the 4-20mA input signal provided by either the Time Mark Model 450 or Model 456-15 Pressure Transducer. This 4-20mA signal represents the water level to be controlled, where 4mA equals zero feet, and the 20mA equals 34.6 feet. A liquid crystal display (LCD) is provided to show the water level during normal operations, and the set-point values during calibration. There are eight user-adjustable trip set-points. As the water level rises above each trip point setting, the front panel LED for that level illuminates, and the corresponding output relay energizes. Two 4-20mA outputs, which track the 4-20mA input, are also provided. These signal outputs can be rescaled to different ranges of level by the user. A test control, that simulates an input signal, is available on the front panel. The test control is useful for checking the trip set-points, and overall system operation. -
C278
The Model 278 AC Current Transducer is designed to accept an AC current input, and provide a proportional DC output. A linear transformer input is coupled to a solid-state output amplifier. The Model 278 is powered by a 115 VAC source, and is socket-mounted for ease of use. Model 278 Current Transducers can be used with computer and programmable controls to provide: motor and power control; supervisory data acquisition; load monitoring; feedback control; energy management. -
C278-230
The Model 278 AC Current Transducer is designed to accept an AC current input, and provide a proportional DC output. A linear transformer input is coupled to a solid-state output amplifier. The Model 278 is powered by a 115 VAC source, and is socket-mounted for ease of use. Model 278 Current Transducers can be used with computer and programmable controls to provide: motor and power control; supervisory data acquisition; load monitoring; feedback control; energy management.