Buy Tek-Trol Tek-LCD 7804B-AX0, Modbus Scanner Indicator

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Tek-Trol, Tek-LCD 7804B-AX0, Explosion-Proof Modbus Scanner Indicator

Features:

Modbus^® Master, Slave, or Snooper Mode
Scan up to 16 Modbus Process Variables
5-Digit Decimal or Feet & Inches Level Display
On-Board Three-Wire RS-485 with Modbus
Independent Scaling, Tag, and Unit for Each PV
7 Alphanumeric Character 0.4" (10.2 mm) Lower Display for Process Variables, Custom Units, and Tags
Explosion-Proof, IP68, NEMA 4X Enclosure
Pulse Input for Rate, Total, and Grand Total
13-Digit Totalizer with Total Overflow Feature
Password Protection
Two Isolated Pulse Outputs Standard, Up to 5 kHz

The Tek-LCD 7804B is an explosion-proof, RS485 serial input Modbus^® RTU scanner capable of scanning up to 16 Modbus variables and displaying them on an easy-to-read, dual-line, LCD. This Modbus scanner can be programmed as a Modbus RTU master, slave, or snooper. The lower line is the same for both versions and consists of seven alphanumeric characters. The Tek-LCD 7804B carries FM, CSA, ATEX, and IECEx approvals for use in hazardous areas. Two features that make the Tek-LCD 7804B stand out are its wide viewing angle display and SafeTouch^® through-glass buttons. These buttons allow the Tek-LCD 7804B to be programmed and operated through the glass, thus eliminating the need to remove the cover in a hazardous area.

Dimensions:

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All sales are final

These are made-to-order items.
This product is not eligible for return or exchange unless defective.
The average lead-time is 1 or 2 weeks.

Return and Warranty

Please note that return requests for Tek-Trol items must be submitted within 14 days after the delivery date.

Technical Details

Reviews

Decimal Display

Top:Top Display: Five Digits (0 to 99999), 0.7″ (17.8 mm) high, 7-segment, automatic lead zero blanking.
Bottom Display: Seven Characters, 0.4″ (10.2 mm) high, 14-segment, automatic lead zero blanking.

Feet & Inches Display

Top Display: 0.60″ (15.2 mm) high, 0 to 399FT, 1115/16 IN, 7-segment, programmable 1/16 or 1/8 fraction display.
Bottom Display: Seven Characters, 0.4″ (10.2 mm) high, 14-segment, 7-digits.

Display Assignment

Top and Bottom Display: Process Variables (PV); Alternating PV and Units, Tag and PV, or Tag, PV, and Units; Pulse Input Rate, Total, or Grand Total with Alternating Tag.

Backlight

White LED, 10-sec auto-off when battery-powered. Backlight deactivated below temperature ~ -20°C

Alarm Indication

Flashing display plus HI/LO (alarm) or SET indicators.

Scan and Update Rate

Ambient > -20°C: Modbus PV scan rate programmable from 2 to 99 seconds per PV. Tag and units programmable for 1 to 5-second alternation. Pulse input variables update 1/second. Rate update is dependent on gate settings.
Ambient < -20°C: All Modbus scans, alternating units and tags, and pulse input variables update/10 seconds minimum.

Under Range

Upper Display: Decimal display flashes -9999
The level display flashes to 399FT 1115/16 IN
Lower Display: Flashes -999999

OverRange

Upper Display: Decimal display flashes 99999
The level display flashes to 399FT 1115/16 IN
Lower Display: Flashes 9999999

Programming Method

Four SafeTouch through-glass buttons when the cover is installed. Four internal push buttons when the cover is removed.

Recalibration

Calibrated at the factory to read frequency in Hz. No recalibration is required.

Input Power

9-30 VDC, 38 mA max. 2.2 W

Enclosure

Explosion-proof die-cast aluminum with glass window, corrosion-resistant epoxy coating

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.

Display Orientation

The display may be mounted at 90° increments up to 270° from default orientation.

Overall Dimensions

5.67″ x 5.24″ x 4.88″ (144 mm x 133 mm x 124 mm) (W x H x D)

Weight

5.00 lbs (80 oz, 2.27 kg)

Notes

* Free Ground Shipping within the continental U.S. only (excludes Alaska, Hawaii, PO Boxes and APO/FPO addresses).

Product Details

Decimal Display

Top:Top Display: Five Digits (0 to 99999), 0.7″ (17.8 mm) high, 7-segment, automatic lead zero blanking.
Bottom Display: Seven Characters, 0.4″ (10.2 mm) high, 14-segment, automatic lead zero blanking.

Feet & Inches Display

Top Display: 0.60″ (15.2 mm) high, 0 to 399FT, 1115/16 IN, 7-segment, programmable 1/16 or 1/8 fraction display.
Bottom Display: Seven Characters, 0.4″ (10.2 mm) high, 14-segment, 7-digits.

Display Assignment

Top and Bottom Display: Process Variables (PV); Alternating PV and Units, Tag and PV, or Tag, PV, and Units; Pulse Input Rate, Total, or Grand Total with Alternating Tag.

Backlight

White LED, 10-sec auto-off when battery-powered. Backlight deactivated below temperature ~ -20°C

Alarm Indication

Flashing display plus HI/LO (alarm) or SET indicators.

Scan and Update Rate

Ambient > -20°C: Modbus PV scan rate programmable from 2 to 99 seconds per PV. Tag and units programmable for 1 to 5-second alternation. Pulse input variables update 1/second. Rate update is dependent on gate settings.
Ambient < -20°C: All Modbus scans, alternating units and tags, and pulse input variables update/10 seconds minimum.

Under Range

Upper Display: Decimal display flashes -9999
The level display flashes to 399FT 1115/16 IN
Lower Display: Flashes -999999

OverRange

Upper Display: Decimal display flashes 99999
The level display flashes to 399FT 1115/16 IN
Lower Display: Flashes 9999999

Programming Method

Four SafeTouch through-glass buttons when the cover is installed. Four internal push buttons when the cover is removed.

Recalibration

Calibrated at the factory to read frequency in Hz. No recalibration is required.

Input Power

9-30 VDC, 38 mA max. 2.2 W

Enclosure

Explosion-proof die-cast aluminum with glass window, corrosion-resistant epoxy coating

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.

Display Orientation

The display may be mounted at 90° increments up to 270° from default orientation.

Overall Dimensions

5.67″ x 5.24″ x 4.88″ (144 mm x 133 mm x 124 mm) (W x H x D)

Weight

5.00 lbs (80 oz, 2.27 kg)

Return and Warranty

Please note that return requests for Tek-Trol items must be submitted within 14 days after the delivery date.

Note

Note: Please read description carefully. Do not base your order on the picture presented.

Reviews

Tek-Trol Tek-LCD 7804B-AX0 Modbus Scanner Indicator

Identifiers

Return and Warranty

Technical Details

Return and Warranty

Reviews