Tek-Trol Tek-LCD 7800A-0K0 Process and Level Indicator
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Manufacturer warranty Description
Tek-Trol, Tek-LCD 7800A-0K0, NEMA 4X Loop-Powered Process and Level Indicator
Features:
- 4-20 mA Input Loop-Powered
- Modern, Sleek and Practical Enclosure for Safe Areas
- 5-Digit, 0.7" (17.8 mm) Upper Display (0.6" for -0L1 Models)
- 7 Alphanumeric Characters, 0.4" (10.2 mm) Lower Display
- SafeTouch® Through-Window Button Programming
- Password Protection
- 32-Point, Square Root, or Exponential Linearization
- Loop or External DC-Powered Backlight Standard
- 3.0 V Drop (6.0 V with Backlight)
- NEMA 4X, IP65 Plastic Enclosure
- Flanges for Wall or Pipe Mounting
- HART® Protocol Transparent
Applications:
- Live Input Calibration
- Multi-Point Linearizer
- Square Root Extraction
- Programmable Exponent
Tek-LCD 7800A NEMA 4X Loop-Powered Process and Level Indicator is one of Tek-Trol's most advanced and feature-packed plastic, field-mounted, loop-powered indicators. The fact that this meter is loop-powered means that there is no need to run additional, costly power lines. The Tek-LCD 7800A is built in a NEMA 4X and IP65-rated plastic enclosure which can stand up to even the harshest environmental conditions. It features a dual-line display that can be easily scaled in the field for any 4-20 mA analog input. The display has a five digit upper display, a seven alpha-numeric character lower display, and comes with a backlight standard. Two features that make the Tek-LCD 7800A stand out are its wide viewing angle display and SafeTouch® through-window buttons. These buttons allow the meter to be programmed and operated through the cover window, thus eliminating the need to remove the cover in dirty or wet environments.
Dimensions:
Technical details
- Weight 1.65 lbs (26.4 oz, 0.75 kg)
- Enclosure EMA 4X, IP65 plastic field enclosure. Color: gray. Material: Polycarbonate with UV Stabilizer. Three 3/4" NPT threaded conduit openings. Two 3/4" NPT plastic conduit plugs, with 1.29″ wrenching flats and a screwdriver slot, are included.
- Mounting May be mounted directly to the conduit. Two slotted flanges for wall mounting or NPS 1-1/2" to 2-1/2" or DN 40 to 65 mm pipe mounting.
- Version Indicator without Bar Graph
- Display Upper: Five digits (-9999 to 99999) 0.70″ (17.8 mm) high,7-segment, automatic lead zero blanking; -0L1: 0.6″ high with level bar graph. Lower: Seven characters 0.4″ (10.2 mm) high, 14 segment alphanumeric. Symbols: for high & low alarm, Password Lock. Backlight: White
- Connections Screw terminals accept 12 to 22 AWG wire
- Relative Humidity 0 to 90% non-condensing
- Operating Temperature Range -40 °C to 75 °C
- Storage Temperature Range -40 °C to 75 °C
- Overall Dimensions 5.67″ x 5.25″ x 4.18″ (144 mm x 133 mm x 106 mm) (W x H x D)
- Display update rate Ambient > -25 °C: 2 Updates/Second. Ambient < -25 °C: 1 Update/5 Seconds
- Over Range Display flashes 99999
- Non-volatile Memory All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
- Normal Mode Rejection 64 dB at 50/60 Hz
- Decimal point Upper process display has up to four decimal places or none: d.dddd d.ddd, d.dd, d.d, or ddddd
- Noise Filter Programmable - Lo, Med, Hi, or Off
- Under Range Display flashes -9999
- Externally Powered Backlight Voltage Range: 9-36 VDC
- Programming Method Four SafeTouch ® through-window buttons when the cover is installed. Four internal pushbuttons when the cover is removed.
- Recalibration Recalibration is recommended at least every 12 months.
- Password Programmable password restricts modification of programmed settings.
- Display Orientation The display may be mounted at 90° increments up to 270° from the default orientation
- Advanced Functions Linear, square root, or programmable exponent
- Alarm Indication Flashing display plus HI/LO indicators
- Max./Min. Display Max/Min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
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