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Related Manuals for TEKTROL Tek-LCD 7800B-0K0
Summary of Contents for TEKTROL Tek-LCD 7800B-0K0
- Page 2 Disclaimer The information contained in this document is subject to change without notice. Tek- Trol makes no representations or warranties with respect to the contents hereof; and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. CAUTION: Read complete instructions WARNING: Risk of electric shock or prior to installation and operation of...
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Page 3: Introduction
INTRODUCTION The Tek-LCD 7800B-0K0 is a rugged, explosion-proof, loop-powered meter fully featured for demanding applications in hazardous areas or in the harshest environmental conditions. The meter derives all of its power from the 4-20 mA loop. It is programmed using the four through-glass buttons, without removing the cover, and can be scaled with or without a calibration signal. -
Page 4: Table Of Contents
Table of Contents INTRODUCTION ---------------------------------------------------------------------- 3 ORDERING INFORMATION ------------------------------------------------------- 3 SPECIFICATIONS -------------------------------------------------------------------- 6 General ------------------------------------------------------------------------------------------- 6 Input ----------------------------------------------------------------------------------------------- 7 Product Ratings and Approvals --------------------------------------------------------- 8 Electromagnetic Compatibility ----------------------------------------------------------- 9 SAFETY INFORMATION ----------------------------------------------------------- 9 INSTALLATION ---------------------------------------------------------------------- 10 Unpacking ------------------------------------------------------------------------------------- 10 Pre-Installed Conduit/Stopping Plug ------------------------------------------------- 10 Mounting --------------------------------------------------------------------------------------- 11 Cover Jam Screw --------------------------------------------------------------------------- 11 Connections ---------------------------------------------------------------------------------- 11... - Page 5 Low-Flow Cutoff (CUTOFF) ................ 33 Input Signal Filter (FILTER) ..............33 Internal Calibration (ICAL) ................ 34 Information (INFO) ..................34 OPERATION -------------------------------------------------------------------------- 35 Front Panel Buttons Operation -------------------------------------------------------- 35 Maximum & Minimum Readings (MAXIMUM & MINIMUM) ------------------------ 36 Reset Meter to Factory Defaults ------------------------------------------------------- 36 Factory Defaults &...
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Page 6: Specifications
SPECIFICATIONS Except where noted all specifications apply to operation at +25°C. General DISPLAY Five digits 0.70" (17.8 mm) high, 7-segment, (-9999 to 99999) automatic lead zero blanking. Seven characters 0.4" (10.2 mm) high, 14-segment. (Engineering Units) Symbols High & Low Alarm, Password Lock Backlight White DISPLAY... -
Page 7: Input
OVERALL 5.65" x 5.25" x 4.86" (W x H x D) DIMENSIONS (144 mm x 133 mm x 124 mm) WEIGHT 5.00 lbs (80 oz, 2.27 kg) WARRANTY 3 years parts and labor Input ACCURACY ±0.03% of calibrated span ±1 count, square root &... -
Page 8: Product Ratings And Approvals
This information is contained within the serial number with the first four digits representing the year and month in the YYMM format. For European Community: The Tek-LCD 7800B-0K0 must be installed in accordance with the ATEX directive 94/9/EC, and the product certificate Sira... -
Page 9: Electromagnetic Compatibility
Electromagnetic Compatibility EMISSIONS EN 61326:2013 Safety requirements for measurement, control, and laboratory use – Industrial Group 1 Class A ISM emissions requirements Radiated Class A Emissions IMMUNITY EN 61326:2013 Safety requirements for measurement, control, and laboratory use ±4 kV contact, ±8 kV air RFI –... -
Page 10: Installation
INSTALLATION For Installation in USA: The Tek-LCD 7800B-0K0 must be installed in accordance with the National Electrical Code (NEC) NFPA 70. For Installation in Canada: The Tek-LCD 7800B-0K0 must be installed in accordance with the Canadian Electrical Code CSA 22.1. All input circuits must be derived from a CSA approved Class 2 source. -
Page 11: Mounting
Mounting The Tek-LCD 7800B-0K0 has two slotted mounting flanges that may be used for pipe mounting or wall mounting. Alternatively, the unit may be supported by the conduit using the conduit holes provided. Refer to Mounting Dimensions, page 39 for details. -
Page 12: Table Of Figures Figure 1. Connector Board
Connections (continued) SIGNAL + 4-20 mA signal input positive terminal connection SIGNAL - 4-20 mA signal return/negative terminal connection when not using loop powered backlight. BACKLIGHT + +9-36 VDC when powering backlight from external supply. BACKLIGHT - 4-20 mA signal return/negative terminal when using the installed loop powered backlight or ground/negative when powering backlight from external supply. -
Page 13: Connections & Wiring Diagrams
Connections & Wiring Diagrams Signal connections are made to a four-terminal connector mounted in the base of the enclosure. The enclosure also provides one internal and one external earth grounding screw. For installations without backlight, only the two signal terminals are connected. -
Page 14: Figure 3. Connections With Loop-Powered Backlight
SAFE-TOUCH BACKLIGHT BUTTONS POWER + - + - UNLOCK LOCK LOOP 9-36 VDC SIGNAL BACKLIGHT 4-20 mA Slide Switch to Transmitter Power LOOP Supply Figure 3. Connections with Loop-Powered Backlight SAFE-TOUCH BACKLIGHT BUTTONS POWER + - + - LOOP UNLOCK LOCK 9-36 VDC SIGNAL... -
Page 15: Setup And Programming
SETUP AND PROGRAMMING There is no need to recalibrate the meter for milliamps when first received from the factory. The meter is factory calibrated for milliamps prior to shipment. The calibration equipment is traceable to NIST standards. Overview Setup and programming are done through the infrared through-glass buttons or using the mechanical buttons when uncovered. -
Page 16: Through-Glass Buttons
Through-Glass Buttons The Tek-LCD 7800B-0K0 is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area. These buttons can be disabled for security by selecting the LOCK setting on the switch located on the connector board in the base of the enclosure. -
Page 17: Buttons And Display
Buttons and Display Button Description Symbol Status Symbol Menu High Alarm Set MENU RESET Right arrow/Reset Low Alarm Set DISPLAY Up arrow/Display Password Enabled Enter ENTER • Press the Menu button to enter or exit the Programming Mode at any time. •... -
Page 18: Main Menu Display Functions & Messages
Main Menu Display Functions & Messages The meter displays various functions and messages during setup, programming, and operation. The following table shows the main menu functions and messages in the order they appear in the menu. Display Parameter Action/Setting SETUP Setup Enter Setup menu DeC. -
Page 19: Main Menu
Main Menu The main menu consists of the most commonly used functions: Setup, Password, and Service. Press MENU button to enter Programming Mode then press the Up Arrow button to scroll through the main menu. • Press MENU, at any time, to exit and return to Run Mode. Changes made to settings prior to pressing Enter are not saved. -
Page 20: Setting Numeric Values
Setting Numeric Values The numeric values are set using the Right and Up arrow buttons. Press Right arrow to select next digit and Up arrow to increment digit. The digit being changed blinks. Press the Enter button, at any time, to accept a setting or MENU button to exit without saving changes. -
Page 21: Setting The Decimal Point (Dec. P T)
Setting the Decimal Point (Dec. P t) Decimal point may be set with up to four decimal places or with no decimal point. Pressing the Right arrow moves the decimal point one place to the right until no decimal point is displayed. Pressing the Up arrow moves the decimal point one place to the left. -
Page 22: Programming The Meter (Prog)
Programming the Meter (PRoG) It is very important to read the following information, before proceeding to program the meter: • There is no need to recalibrate the meter for milliamps when first received from the factory. • The meter is factory calibrated for milliamps prior to shipment. The calibration equipment is traceable to NIST standards. -
Page 23: Scaling The Meter (Scale)
Scaling the Meter (SCale) The 4-20 mA input can be scaled to display the process in engineering units. A signal source is not needed to scale the meter; simply program the inputs and corresponding display values. Figure 5. Scale Menu For instructions on how to program numeric values Setting Numeric Values, page 20. -
Page 24: Calibrating The Meter (Cal)
Calibrating the Meter (Cal) To scale the meter without a signal source, refer to Scaling the Meter (SCale), page 23. The meter can be calibrated to display the process in engineering units by applying the appropriate input signal and following the calibration procedure. The use of a calibrated signal source is strongly recommended. -
Page 25: Re-Calibrating The Internal Calibration Reference (Ical)
Minimum Input Span The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter. The minimum span is 0.10 mA. If the minimum span is not maintained, the meter reverts to input 2, allowing the appropriate input signals to be applied. -
Page 26: Setting Up The Password (Passwrd)
Setting Up the Password (PASSWRD) The Password menu is used to program a five-digit password to prevent unauthorized changes to the programmed parameter settings. The lock symbol is displayed to indicate that settings are protected. Locking the Meter Enter the Password menu and program a five-digit password. For instructions on how to program numeric values see Setting Numeric Values, page 20. -
Page 27: Disabling Password Protection
Disabling Password Protection To disable the password protection, access the Password menu and enter the correct password twice, as shown below. The meter is now unprotected until a new password is entered. Enter Password Run Mode 3024. 7 00000 LOCKED GALLONS LOCKED UNLOCKD... -
Page 28: Advanced Features Menu
Advanced Features Menu To simplify the setup process, functions not needed for most applications are located in the Advanced features menu. Press and hold the MENU button for five seconds to access the Advanced features menu. Hold for five seconds 3024. -
Page 29: Advanced Features Menu & Display Messages
Advanced Features Menu & Display Messages The following table shows the Advanced features menu functions and messages in the order they appear in the menu. Display Parameter Action/Setting INDICAT Indicate Enter Indication (Alarm) menu Disable alarm Alrnm Alarm Enter alarm indication menu Set Point Program set point ReseT... -
Page 30: Indication (Indicat)
For instructions on how to program numeric values Setting Numeric Values, page 20. Indication (INDICAT) The Indication menu is used to enable and set up a high or low alarm indication on the screen. When alarm indication is enabled, the HI and LO symbols are used accompanied by a flashing display. -
Page 31: Advanced Function Selection (Functn)
Advanced Function Selection (FUNCTN) The Advanced Function menu is used to select the advanced function to be applied to the input: linear, square root, programmable exponent, or round horizontal tank volume calculation. The multi-point linearization is part of the linear function selection. Meters are set up at the factory for linear function with 2-point linearization. -
Page 32: Square Root Linearization (Squar)
LnEAR FUNCTN PROGRAM PROGRAM inP 1 dsp 1 0000. 0 DSPLY 1 INP 2 Figure 6. Multi-Point Linearization Menu Square Root Linearization (Squar) The square root function can be used to linearize the signal from a differential pressure transmitter and display flow rate in engineering units. Programmable Exponent Linearization (Prog. -
Page 33: Low-Flow Cutoff (Cutoff)
Low-Flow Cutoff (CUTOFF) The low-flow cutoff feature allows the meter to be programmed so that the often- unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the meter. The default cutoff is zero to prevent negative readings, but this may be overridden to allow them. -
Page 34: Internal Calibration (Ical)
Internal Calibration (ICAL) There is no need to recalibrate the meter for milliamps when first received from the factory. The meter is factory calibrated for milliamps prior to shipment. The calibration equipment is traceable to NIST standards. The internal calibration allows the user to scale the meter without applying a signal. The use of a calibrated signal source is necessary to perform the internal calibration of the meter. -
Page 35: Operation
OPERATION Front Panel Buttons Operation Button Description Symbol Press to enter or exit Programming Mode or exit Max/Min readings MENU RESET Press to reset Max/Min readings DISPLAY Press to display Max/Min readings alternately Press to display Max or Min reading indefinitely while displaying Max or Min ENTER... -
Page 36: Maximum & Minimum Readings (Maximum & Minimum)
Maximum & Minimum Readings (MAXIMUM & MINIMUM) The maximum and minimum (peak & valley) readings reached by the process are stored in the meter since the last reset or power-up. The meter shows MAXIMUM or MINIMUM to differentiate between run mode and max/min display. Press Enter to remain in Max/Min display mode. -
Page 37: Factory Defaults & User Settings
Factory Defaults & User Settings The following table shows the factory setting for most of the programmable parameters on the meter. Next to the factory setting, the user may record the new setting for the particular application. Model: ______________ S/N: _______________ Date: _________ Parameter Display Default Setting... -
Page 38: Troubleshooting
TROUBLESHOOTING The rugged design and the user-friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual. If the meter is not working as expected, refer to the recommendations below. Troubleshooting Tips Symptom Check/Action... -
Page 39: Mounting Dimensions
MOUNTING DIMENSIONS All units: inches [mm] 3.35 [85.1] 2.25 [57.1] 0.32 [8.2] 5.65 [143.5] 5.25 [133.4] Figure 7. Enclosure Dimensions – Front View... -
Page 40: Figure 8. Enclosure Dimensions - Side Cross Section View
3.35 [85.0] 4.15 [105.5] 4.86 [123.5] 3.22 [81.9] Figure 8. Enclosure Dimensions – Side Cross Section View... -
Page 41: Quick User Interface Reference
QUICK USER INTERFACE REFERENCE Pushbutton Function Menu Go to Programming Mode or leave Programming, Advanced Features, and Max/Min Modes. Right Arrow Move to next digit or decimal point position. Reset Total. Up Arrow Move to next selection or increment digit. Go to Max/Min Mode. Enter/Ack Accept selection/value and move to next selection. -
Page 43: Eu Declaration Of Conformity
EU DECLARATION OF CONFORMITY Issued in accordance with ISO/IEC 17050-1:2004 and ATEX Directive 2014/34/EU. Precision Digital Corporation 233 South Street Hopkinton, MA 01748 USA as the manufacturer, declare under our sole responsibility that the product(s), Model PD6800 Series Loop Powered Meter to which this declaration relates, is in conformity with the European Union Directives shown below: 2014/35/EU... - Page 44 Tek-Trol LLC 796 Tek Drive Crystal Lake, IL 60014 USA Tel.: +1 847 857 6076 Fax: +1 847 655 6147 Email: tektrol@tek-trol.com www.tek-trol.com Flow | Level | Temperature | Pressure | Valves | Analyzers | Accessories | TekValSys...
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