NEMA 4X Panel Mount Multi-Channel Controller
TEK-LCD 7801C NEMA 4X Panel Mount Multi-Channel Controller
Tek-LCD 7801C NEMA 4X Panel Mount Multi-Channel Controller is easy to use and satisfies various processes, including display, alarm, and control applications. It accepts 4 to 20 mA inputs, flow meter pulse inputs, digital inputs, and Modbus inputs and displays them numerically and bar graph format on a large, 5.7″ color display. It can be equipped with multiple relays with user-definable actions, 4-20 mA outputs, digital outputs, Modbus RTU and ASCII, Modbus Enron, and Ethernet Modbus TCP/IP protocol communication capabilities. Additionally, the controller is equipped with up to 32 timers, 99 channels, 32 totalizers, and 99 Modbus inputs to control many processes or events. Tek-LCD 7801C NEMA 4X Panel Mount Multi-Channel Controller takes full advantage of its color display by allowing the user to customize screen colors for bar graphs, alarm conditions, and input channels. All this functionality is easily programmed using the free software or via the front panel pushbuttons.
The Tek-LCD 7801C NEMA 4X Panel Mount Multi-Channel Controller combines multiple alarms into logic AND and/or OR alarms. It has a simulation and manual control mode for testing setup, and its modular design provides input and output flexibility. It is possible to calculate round horizontal tank volume.
The Tek-LCD 7801C consists of 50-point linearization, square root, and exponent for open channel flow and open channel flow math formulas for weirs and flumes. It is available with multi-pump alternation control and on/off control with the random varying set point.
Automatic or manual scanning is possible through Tek-LCD 7801C.
Features
Specifications
Documents
Software
Features
- Available with programmable displays, function keys, and digital inputs.
- Numeric and bar graph color display (320 x 240 pixels) 5.7″ (145mm).
- Sunlight readable display, white backlight.
- Combine multiple alarms into logic AND and/or OR alarms.
- Simulation and manual control modes for testing setup.
- Modular design for inputs and outputs flexibility.
- 50-point linearization, square root, and exponent for open channel flow.
- Round horizontal tank volume calculation is possible.
- Open channel flow math formulas for weirs and flumes.
- Multi-pump alternation control.
- On/off control with the random varying set point.
- Automatic or manual scanning.
- 3-Year Warranty.
Specifications
| Display | Color; QVGA (320×240 px), 5.7″ (145 mm) diagonally, white backlight; Bar Graph: Twenty divisions; Numerical: Up to 15 digits (±999,999,999,999,999); Feet & Inches Format: 99,999′ 11.9″ |
| Screen Bar Graph | Enable/disable: Channels, totals, timers; Bar Graph scale: 0 – 100%, independent of channel scale; Twenty Divisions: 5% each; Screen: Select to show bar graph or not |
| Color Selection | 65 colors selection, customize bar graph, panel background, and text for normal and alarm conditions |
| Decimal Point | 0 to 15 decimal places, user selectable |
| Display Update Rate | User selectable: 0.1 to 0.5 sec (10 updates/sec to 2 updates/sec) |
| Programming Method | Front panel buttons, external buttons |
| Number of Alarms | Up to 64 high or low, logic AND & OR Automatic (non-latching) or latching, On & Off time delays, can be assigned to one or more relays |
| Internal Buzzer | 60 dBA @ 24 inches (61 cm) |
| Input & Output Cards | Max Number of I/O Cards: 7; Analog Inputs: 4/card; Pulse Inputs: 4/card; Analog Outputs: 5/card; Relays: 5/card |
| Number of Screens | Up to 20 screens with 1 to 8 PVs or items per screen |
| Number of Channels | Up to 99 channels; Input Source: 4-20 mA, Pulse, Digital, Modbus, another Channel, Total, Timer, Alarm, Date & Time, mA Output, Relay Output, Digital Output, or Modbus Output |
| Non-Volatile Memory | Settings stored for a minimum of 10 years |
| Output | 4 to 20mA |
| Accuracy | ±0.03% of full scale ±1 count |
| Temperature Drift | Better than: 20 ppm/°C from -40 to 60°C ambient |
| Power Supply | Isolated 24 VDC @ 200 mA/input Max current: 1,600 mA (All inputs), (8) Analog Input @ 200 mA max, (28) Analog Input @ 20 mA max Available on AC or DC powered units |
| Temperature | Operating Temperature : -40°F to 140°F (-40°C to 60°C) Storage Temperature: -40°F to 140°F (-40°C to 60°C) |
| Relative Humidity | 0 to 90% non-condensing |
| Connections | Removable screw terminal blocks Inputs/Outputs: 12 to 24 AWG wire; Digital I/O: 16 to 30 AWG; RS-485: 12 to 24 AWG wire RJ45 Ethernet connection; USB ports: Micro-USB (Device), cable included |
| Enclosure | Enclosure Body: Thermoplastic Polyester, Color: Gray; Display Window: Clear Polycarbonate, GE LEXAN HP12W; Front Panel Keys: Silicone rubber |
| Mounting | Panel-mounting frame and twelve screws (provided) Cut-out: 10 ¼” x 10 ¼” ±1/16″ (254mm x 254mm ±1.3 mm) (H x W); Panel thickness: 1/16″ – 1/4″ (1.8 mm to 8.9 mm); Clearance behind panel: 6″ (150mm) |
| Dimensions | 10 ¾” x 10 ¾” x 4 ¾” (276mm x 276mm x 124mm) (H x W x D) |
| Weight | 7.4lb (3.4kg) approx. |
| Number of Totalizers | Up to 32 totalizers, 15 digits with comma separator |
| Date & Time Format | Month, day, year; 24 hour; 00: Midnight hh: mm: ss |
| Battery | 3 V, P/N: CR2032 included |
| Isolation | 1500 V: Input-to-power line; 500 V: Input-to-input, input-to-output; All analog inputs and analog outputs are isolated from each other |
Documents
Software