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Pneumercator LDE740 Instruction Manual

Multi tank monitoring system
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PNEUMERCATOR
Liquid Level Control Systems
Date: 2017.08.03 13:07:38 -04'00'
ou=Headquarters, email=peter@pneumercator.com, c=US
DN: cn=Peter Sinkiwskij, o=Pneumercator Co., Inc.,
Digitally signed by Peter Sinkiwskij
Peter Sinkiwskij
INSTRUCTION MANUAL
© COPYRIGHT 2017 PNEUMERCATOR CO.
1785 EXPRESSWAY DRIVE NORTH, HAUPPAUGE, NY 11788
MODEL LDE 740
(Revised July 8, 2017)
(631) 293-8450 Phone
(631) 293-8533 Fax
(800) 209-7858 Product Support
http://www.pneumercator.com
Multi Tank
Monitoring
System

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Summary of Contents for Pneumercator LDE740

  • Page 1 Multi Tank Monitoring Liquid Level Control Systems System Peter Sinkiwskij Digitally signed by Peter Sinkiwskij DN: cn=Peter Sinkiwskij, o=Pneumercator Co., Inc., ou=Headquarters, email=peter@pneumercator.com, c=US Date: 2017.08.03 13:07:38 -04'00' INSTRUCTION MANUAL MODEL LDE 740 (Revised July 8, 2017) © COPYRIGHT 2017 PNEUMERCATOR CO.
  • Page 3 LDE-740 System Operation and Installation Manual NOTICE: PNEUMERCATOR CO., INC. reserves the right to make improvements to the product described in these instructions at any time and with no notice. WARNING: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications.

  • Page 4: Table Of Contents

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Table of Contents Section 1 Introduction Section 2 Specifications Section 3 Installation Section 3.1 Mechanical Installation Section 3.2 Transmitter/Sensor Installation Section 3.2.1 Tank Level Transmitters Section 3.2.2 Switch Sensors Section 3.2.3 Leak Detection Sensors Section 3.3...
  • Page 5 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 6 Relay Contact Wiring - TB6 Figure 7 Key Definitions Figure 8 RS-232 Special Characters Figure 9 2-412 Installation Figure 10 2-501 Installation Figure 11 9-901 Installation Figure 12 9-902 Installation...

  • Page 6: Introduction

    Section 1: Introduction The Pneumercator LDE-740 is an advanced inventory management and control system. Drawing upon Pneumercator's more than 99 years of experience in liquid level controls and measurement systems, the LDE-740 is designed to help simplify the inventory process, and to be extremely easy to operate.
  • Page 7 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual The system features self-diagnostics that test the audible alarm, visual alarms, clock, relay operation, and data storage memory. These tests are available from the keypad, and help to ensure reliable and trouble-free operation of the LDE-740.
  • Page 8 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual The system console may be mounted in any non-hazardous area where it can be provided with 120 VAC ±10% at 60 Hz. The standard enclosure is NEMA 1 with a NEMA 4 console optionally available (printer not available with NEMA 4 option).

  • Page 9: Specifications

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 2: Specifications Power - 120 VAC ± 10%, 60 hertz, 50 Watts, MOV differential and common-mode surge protection, under voltage detection and protection. Fuse - 3 A.G. SLO-BLO, 1/4 Amp, 250 VAC or equivalent.
  • Page 10 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Switch Inputs - 8 from any mechanical switch input. Intrinsically safe for Class I, Division 1, Groups A, B, C, D, 5 VDC @25 mA. Individually programmable for normally open or normally closed switch inputs.

  • Page 11: Installation

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 3: Installation NOTE: INSTALLATION MUST BE DONE BY QUALIFIED PERSONNEL, FAMILIAR WITH LOCAL WIRING CODES EXPLOSION HAZARD ELECTRICAL SAFETY PRACTICES. Section 3.1: Mechanical Installation The LDE-740 console is a NEMA 1 enclosure intended for indoor installation.

  • Page 12: Figure

    No nonintrinsically safe wires should be in the same conduit unless a metal barrier is provided. All Pneumercator level transmitters and sensors may be run in the same conduit.

  • Page 13: Figure

    No non-intrinsically safe wires should be in the same conduit unless a metal barrier is provided. All Pneumercator level transmitters and sensors may be run in the same conduit. Page 13 of 104...

  • Page 14: Figure

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual The sensors are wired to TB4 on the circuit board. The Red wire is connected to position R, the White wire is connected to position W, and the Black wire is connected to position B.

  • Page 15: Figure

    1. Measure the distance from the top of the opening to the bottom of the area being monitored. This is the mounting height. 2. If using the optional Pneumercator leak monitor tube assembly for Convault tanks (assembly #900379-1), add 1 inch to this dimension to find the cable length measurement.

  • Page 16: Electrical Installation

    Black (hot), White (neutral), and Green (ground). If power surges or lightning are local problems, the 120 VAC power line should be protected with an external (not supplied by Pneumercator) surge protector or lightning arrestor. The A.C. power wires run to the terminal block labeled TB7, to positions 1, 2 and 3.

  • Page 17: Installation Checklist

    18 AWG wires and that the proper color-coding or marking has been maintained throughout the wiring runs. 7. Verify that all wiring splices are waterproof. Pneumercator part #10585-3 (splice kit) or equivalent or NEMA 4 or better junction box should be used for all wiring splices.

  • Page 18: System Map And Setup

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 3.4.1: System Map and Setup Tank Product High Critical Offset Chnl Aux / Switch Input Usage Sensor Chnl Leak Input Usage Sensor Relay Alarms Usage Page 18 of 104...

  • Page 19: Operation

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 4: Operation IMPORTANT: Before operating the system, make sure that all items on the installation checklist in the Installation section of this manual have been checked out and complied with.

  • Page 20: Tank / Channel Selection

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual In Volume, Inches, and Water display modes the High, Low, Critical, and Water lights at the lower right of the display indicate the status of those particular alarms for the selected tank. The Tank Level Alarm lights at the bottom of the display will indicate a fault with a particular tank no matter what display mode is selected, or tank is displayed.

  • Page 21: Leak Detection

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Tank Settings: High (overfill) Level Alarm 90% of tank capacity Critical Level Alarm (High-High) 95% of tank capacity Low Level Alarm 20% of tank capacity Delivery Threshold 50 Gallons Theft Threshold...

  • Page 22: Theft Mode

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Leak detection response time is less than 1 second for detection of product or water at the threshold level. The system will latch a leak detection alarm after 1 minute of continuous detection. This is to ensure that an alarm state is not ignored or bypassed.

  • Page 23: The Horn

    If the load on the relay contacts exceeds this rating then the relay should be used to actuate an external power relay of appropriate rating (not supplied by Pneumercator). Page 23 of 104...

  • Page 24: Relay Contact Wiring - Tb5

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 5 - Relay Contact Wiring TB5 Terminal # Relay Figure 6 - Relay Contact Wiring TB6 Terminal # Relay See Appendix B: Relay and Horn Alarm Conditions for a list of the alarm conditions that can be programmed to actuate the relays and the default actuation conditions.

  • Page 25: Latching Relays

    If the load on the latching relay contacts exceeds the 5 Amps at 120 VAC relay rating, then the latching relay should be used to actuate an external power relay of appropriate rating for the load (not supplied by Pneumercator). Section 4.6: System Tests The system LEDs, horn, RAM (memory), clock and relays may be tested from the keypad.

  • Page 26: Maintenance

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 4.7: Maintenance The time between maintenance periods is a variable that will depend upon the environment in which the level transmitters, sensors, and system console are operating. The console should be tested every six months by using the keypad self-diagnostic commands.

  • Page 27: Keypad Commands

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 5 Keypad Commands Figure 7 – Key Definitions Meaning Null (reserved) Backspace Cancel Dash (Minus Sign) Enter Function Section 5.1 How to Enter Keypad Commands FUNCTION: The FUNCTION key, which is labeled ‘F’, precedes all commands given in PROGRAM mode.
  • Page 28 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual **** Where braces { } are shown bracketing parameters in the commands, they are shown for reasons of clarity only, and must not be entered into the command line entered into the LDE-740.**** **** When PROGRAMMING mode is entered by pressing the FUNCTION key on the keypad, the front panel display is cleared, and the function symbol is displayed.

  • Page 29: Keypad Commands - Grouped By Function

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 5.2: Keypad Commands – Grouped by Function Function Command Number Clock Display Time Enter Time Display Date Enter Date Display Weekday Enter Weekday Print Clock Level Alarms Display High Alarm Setting...
  • Page 30 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Delivery Threshold Print Delivery Threshold Enter Delivery Threshold Switch Inputs Program Switch State Print Switch Setup Display Named Switch Alarms Enter Named Switch Alarms Print Named Alarms Display Generator Switch Status...
  • Page 31 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Test Clock Test Relays Test LEDs and Horn Test RS-232 Port Printer Enter Automatic Inventory Print Time Print Automatic Inventory Print Times Enter Product Code Print Product Name Clear Printer Buffer...
  • Page 32 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Calibrate Zero Calibrate Span Warm Reset System Cold Reset System Display Alarm Actuation Delay Enter Alarm Actuation Delay History Print Alarm History Print Stored Inventory Print Generator Run History Page 32 of 104...

  • Page 33: Keypad Commands - Numerical Order

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 5.3: Keypad Commands - Numerical Order Function Command Number Display Time Enter Time Display Date Enter Date Display Weekday Enter Weekday Print Clock Display High Alarm Setting Print High Alarm Setting...
  • Page 34 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Calibrate Zero Calibrate Span Warm Reset System Cold Reset System Test LEDs and Horn Enter Auto Answer Ring Count Display Auto Answer Setup Print Auto Answer Setup Test RS-232 Port Print Latest Delivery...

  • Page 35: Keypad Command Entry

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 5.4: Keypad Command Entry **** NOTE: All character positions shown in the command definition, except for braces { }, must be entered, i.e. 'nnnnn' calls for the entry of 5 digits. Braces enclose optional parameters.
  • Page 36 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print High Alarm Setting (08): F 08 T E T is the tank number (1 to 4). If 0 is entered as the tank number, all tanks are printed. Prints high (overfill) alarm setting.
  • Page 37 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Offset Adjustment (16): F 16 T {-} nnn E T is the tank number (1 to 4). nnn is the level to set the offset to (this level is entered in hundredth’s of an inch, i.e.
  • Page 38 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual 1 = Sunday. 2 = Monday. 3 = Tuesday. 4 = Wednesday. 5 = Thursday. 6 = Friday. 7 = Saturday. If 0 is entered as the day of the week, all days are selected.
  • Page 39 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Baud Rate (29): F 29 n E n is a number from 1 to 5 for the baud rate desired. 1 = programmed for 300 baud. 2 = programmed for 1200 baud.
  • Page 40 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print Horn Setup (34): F 34 E Prints the setup and enabling conditions for the horn. Program Relay Alarm Conditions (35): F 35 N cc E N is the number of the relay that is being programmed. This is relay 1 to relay 8.
  • Page 41 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Program Relay Delay (38): F 38 N t E N is the number of the relay that is being programmed. This is relay 1 to relay 8. t is the time for relay actuation after alarm condition. This setting is available in 1-minute increments.

  • Page 42: Calibrate Zero

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Reserved (46): F 46 E Reserved for future use. Reserved (47): F 47 E Reserved for future use. Reserved (48): F 48 E Reserved for future use. These commands will return an unimplemented command error (Error Code #1).

  • Page 43: Cold Reset System

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Cold Reset System (52): F 52 E Cold resets the system and performs all self-diagnostic system checks. Restores all system programming defaults. *****WARNING***** All system setup parameters are reset to their default conditions. All stored data is cleared from the system memory.

  • Page 44: Print Stored Deliveries

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print Stored Deliveries (59): F 59 T E T is the tank number (1 to 4). If 0 is entered as the tank number, all tanks are printed. Prints all stored deliveries for the selected tank(s). The system will store the 6 latest deliveries for each tank.

  • Page 45: Display Critical Alarm Setting

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Critical Alarm Setting (66): F 66 T E T is the tank number (1 to 4). Displays the level set for the critical alarm until any key press or timeout. Default setting is 95% of tank capacity.

  • Page 46: Display Relay Latch Status

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Relay Latch Status (73): F 73 N E N is the number of the relay to display. This is relay 1 to relay 8. Displays the status of the relay as a latching relay until any key press or timeout.

  • Page 47: Display Named Switch Alarms

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Named Switch Alarms (75): F 75 N E N is the number of the switch input to display. This is switch input 1 to switch input 8. Displays until any key press or timeout.

  • Page 48: Display Named Leak Alarms

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Named Leak Alarms (77): F 77 N E N is the number of the leak input to display. This is leak input 1 to leak input 8. Displays until any key press or timeout.

  • Page 49: Enter Generator Switch Status

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Generator Switch Status (81): F 81 N s T E N is the number of the switch input that is being designated as a Standby Generator Switch. This is switch input 1 to switch input 8.

  • Page 50: Enter Rs-232 Port Mode

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter RS-232 Port Mode (86): F 86 s E s is a number from 0 to 2 that sets the operating mode for the RS-232 Port. 0 = local port, no echo. In this mode, the RS-232 Port operates independently of the printer.

  • Page 51: Display Automatic Inventory Dialout

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Display Automatic Inventory Dialout (91): F 91 E Displays whether the RS-232 Port in modem mode will automatically dial a phone number when an automatic Inventory printout occurs. Displays until any key press or timeout.

  • Page 52: Rs-232 Communications

    Operation and Installation Manual Section 6 : RS-232 Communications The Pneumercator Model LDE-740 comes with an RS-232 communications port, which may be used to transfer data to a remote computer system or terminal. The RS-232 port is configured as a DTE, for connection to a modem. If a direct connection to a computer or terminal is desired, a null modem cable must be used.

  • Page 53: How To Enter Rs-232 Commands

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 6.2: How to Enter RS-232 Commands Figure 8 – RS-232 Special Characters Name Hex code Keyboard entry SOH-start of header Ctrl-A LF-line feed Ctrl-J CR-carriage return Ctrl-M New line 0D0AH...

  • Page 54: Rs-232 Commands - Grouped By Function

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 6.3: RS-232 Commands - Grouped by Function Function Command Number Clock Print Clock Enter Time Enter Date Enter Weekday Level Alarms Print High Alarm Setting Enter High Alarm Setting Print Low Alarm Setting...
  • Page 55 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Named Switch Alarms Enter Custom Switch Name Print Named Alarms Enter Generator Switch Status Leak Detection Print Leak Detection Setup Program Leak Channel State Calibrate Leak Detection Clear Leak Detection Latch...
  • Page 56 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Custom Tank Name Enter Custom Site Header Line 1 Enter Custom Site Header Line 2 Enter Custom Site Header Line 3 Program Switch Alarm Printout RS-232 Enter RS-232 Port Mode...

  • Page 57: Rs-232 Commands - Numerical Order

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 6.4: RS-232 Commands - Numerical Order Function Command Number Print Clock Enter Time Enter Date Enter Weekday Print Automatic Inventory Print Times Enter Automatic Inventory Print Time Print High Alarm Setting...
  • Page 58 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Theft Threshold Print Alarm Actuation Delay Enter Alarm Actuation Delay Print Relay Latch Status Enter Relay Latch Status Enter Named Switch Alarms Enter Custom Switch Name Enter Named Leak Alarms...

  • Page 59: Rs-232 Command Entry

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 6.5: RS-232 Command Entry Print Clock (00): {SOH} 00 {^} Prints the date, time, and day of the week. Enter Time (01): {SOH} 01 hh mm {^} hh is the hours (in military time), i.e. 15 is 3 PM.
  • Page 60 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual 4 = Wednesday. 5 = Thursday. 6 = Friday. 7 = Saturday. If 0 is entered as the day of the week, all days are selected. If the command is entered in the form: {SOH} 05 N {^}, that automatic print time will be disabled.
  • Page 61 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print Offset Adjustment (12): {SOH} 12 T {^} T is the tank number (1 to 4). If 0 is entered as the tank number, all tanks are printed. Prints the offset adjustment for the tank.
  • Page 62 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Program Horn Alarm Conditions (19): {SOH} 19 {-} cc {^} cc is the 2-digit number of the condition(s) that will actuate the horn. More than one condition may be set to actuate the horn. If more than one condition is set for the horn, the programming must be repeated for each condition.
  • Page 63 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Program Relay Shutoff (23) : {SOH} 23 N tt {^} N is the number of the relay that is being programmed. This is relay 1 to relay 8. tt is the time for automatic relay shutoff after alarm actuation. This setting is available in 1 minute Increments.
  • Page 64 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual s is the state of the switch input in a non-alarm condition. 0 = programmed as normally open switch input. Alarm will activate when the switch closes. 1 = programmed as normally closed switch input. Alarm will activate when the switch opens.
  • Page 65 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Cold Reset System (35): {SOH} 35 {^} Cold resets the system and performs all self-diagnostic system checks. Restores all system programming defaults. The system will respond with "35 O.K." *****WARNING***** All system setup parameters are reset to their default conditions.
  • Page 66 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print Critical Alarm State and Setting (41): {SOH} 41 T {^} T is the tank number (1 to 4). If 0 is entered as the tank number, all tanks are printed.
  • Page 67 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Print Relay Latch Status (48): {SOH} 48 N {^} N is the number of the relay to print. This is relay 1 to relay 8. If 0 is entered as the tank number, all tanks are printed.
  • Page 68 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual n is a number from 0 to 9 that identifies the name. There are 8 pre-assigned names, and a fully custom name may also be assigned. The default assignment for all switch inputs is n=0 (no name).
  • Page 69 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual xxx...xxx is a custom name that can be up to 20 characters long. Once a name is assigned to the name buffer, it may be assigned to the leak input by using RS-232 command #52.
  • Page 70 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter RS-232 Port Mode (59): {SOH} 59 s {^} s is a number from 0 to 2 that sets the operating mode for the RS-232 Port. 0 = local port, no echo. In this mode, the RS-232 Port operates independently of the printer.
  • Page 71 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Enter Phone Number (63): {SOH} 63 xxx...xxx {^} xxx...xxx is a phone number to use for alarm and inventory dialouts. This may be up to 20 characters long. If a delay is desired between digits of a phone number, a COMMA may be entered in the phone number string.

  • Page 72: Packed Data Format

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Section 6.6: Packed Data Format Packed Data Dump (99): {SOH} 99 {^} The data transmitted is sent in ASCII-coded format with the information in the following order: header, clock info, alarm statuses, relay statuses, horn status, volume measurements, product heights, checksum, and footer.
  • Page 73 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Measurements for the Tanks (32 bytes): 4 Volume measurements and 4 Height measurements are always sent. Volume (4 bytes for each Tank) - volume is stored in gallons as a hex number 0000H to 0FFFFH (ranging from 0 to 65535 gallons), which is converted into 4 nibbles, which are sent as ASCII (9H is sent as 39H).

  • Page 74: Troubleshooting & Servicing

    1 year from the date of shipment. No materials should be returned to the factory without first getting a Returned Materials Authorization number from Pneumercator. All materials returned should be marked with this R.M.A. number. Because of the intrinsically safe operation of the system no field repairs other than fuse changing should be attempted.
  • Page 75 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual SYMPTOM: System always displays the minimum or maximum gaugeable setting no matter how much product is in the tank. SYMPTOM : System displays a negative reading or Error Code 9 (volume measurement under range).
  • Page 76 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual SYMPTOM: Leak detection channel shows no lights. LIGHT INDICATIONS Water Hydrocarbon Meaning no sensor attached ACTION: This condition indicates that when the leak sensors were calibrated either no sensor was connected to that input or a defective or miswired sensor was connected to that input.
  • Page 77 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual potentiometer (variable resistor) of a value of about one thousand to ten thousand ohms (the exact value is not critical) should be connected to the barrier block. One end terminal of the potentiometer is connected to terminal R (Red), the other end terminal is connected to terminal B (Black), and the middle terminal of the potentiometer (the wiper) is connected to terminal W (White).
  • Page 78 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual 2-501: With the float arm at bottom of travel, Black to White is 0. Black to Red is always 2000. The Black to White reading will increase as the float moves up, and will be a ratio of the percentage of float arm travel to overall float arm travel.

  • Page 79: Installation

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 9 - 2-412 Installation STEPS FOR A TROUBLE FREE INSTALLATION STEP 1 - EXAMINE THE SHIPMENT 1.1 Each system consists of two main components, which are packed separately, the transmitter float assembly and the indicator unit. Make sure you have both parts. If cartons are missing or damaged, have the fact noted on the delivery receipts to permit a claim to be filed against the transportation company.
  • Page 80 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 9 - 2-412 Installation (Continued) STEP 3 - SELECT THE CORRECT LOCATION FOR THE INSTALLATION OF THE TRANSMITTER FLOAT ASSEMBLY 3.1 The transmitter float assembly should be installed through a 4” NPT half coupling in the top of the tank as shown in figure 9-1.

  • Page 81: Installation

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 10 - 2-501 Installation STEPS FOR A TROUBLE FREE INSTALLATION 1. Examine the shipment 2. Make sure the system matches your job 3. Select the correct location for the transmitter 4.
  • Page 82 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 10 - 2-501 Installation (Continued) STEP 3 - SELECT THE CORRECT LOCATION FOR THE TRANSMITTER 3.1 Standard installation requires a 2” half coupling in the top of the tank. The fulcrum pipe will then reach the mid-point of tank as required for accurate measurement If the transmitter is to be installed through a manway or a riser, it must be ordered with an extra long fulcrum pipe.

  • Page 83: Installation

    4. SCREW IN THE MOUNTING BUSHING AND CONNECTOR. 3.3) CABLE IS 18/3. 5. TIGHTEN THE CONNECTOR WITH THE CABLE MARK IN THE CORRECT POSITION. PART NUMBER: PNEUMERCATOR Liquid Level Control Systems 6. USING THE PROPER CONSOLE WIRING DRAWING, WIRE TO THE JUNCTION UNLESS OTHERWISE SPECIFIED APPROVALS...

  • Page 84: Installation

    3.3) CABLE IS 18/3. SENSOR AND CABLE THROUGH THE TANK OPENING. 5. SCREW IN THE MOUNTING BUSHING AND CONNECTOR. 6. TIGHTEN THE CONNECTOR WITH THE CABLE MARK IN THE CORRECT PART NUMBER: PNEUMERCATOR POSITION. Liquid Level Control Systems UNLESS OTHERWISE SPECIFIED APPROVALS...

  • Page 85: Installation

    5. SCREW IN THE MOUNTING BUSHING AND CONNECTOR. 3.3) CABLE IS 18/3. 6. TIGHTEN THE CONNECTOR WITH THE CABLE MARK IN THE CORRECT POSITION. PART NUMBER: PNEUMERCATOR Liquid Level Control Systems 7. USING THE PROPER CONSOLE WIRING DRAWING, WIRE TO THE JUNCTIO UNLESS OTHERWISE SPECIFIED APPROVALS...

  • Page 86: Main Circuit Board Layout

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 14 - Main Circuit Board Layout RFC1 C10 U6 RFC2 © 1993 PNEUMERCATOR CO. INC. ASSY 900400- REV A SERNO FUSE TB1 1 TB2 1 10 13 16 19 22...

  • Page 87: Display Circuit Board Layout

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 15 - Display Circuit Board Layout THEFT MODE NORMAL/THEFT DATA RECALL MODE SWITCH PUSHBUTTON NORM NORM DATA RECAL THEFT LEAK ALERT GALLONS DSP LEAK WATER LEAK INCHES DSP ALERT WATER DSP...
  • Page 88 GENERATING MECHANICAL SWITCH TYPE LEAK SENSOR DEVICE CONTAINING NO CAPACITANCE OR INDUCTANCE SUCH AS PNEUME RCATOR MODEL LS-600 SERIES. (9-90 TYPICAL 8-PLACES PART NUMBER: PNEUMERCATOR Liquid Level Control Systems UNLESS OTHERWISE SPECIFIED APPROVALS DATE NO CHANGES WITHOUT DIMENSIONS ARE IN INCHES...

  • Page 89: Program Chip Replacement

    1. POWER MUST BE OFF FOR THIS PROCEDURE. NOTES: 2. NOTCH ON CHIP MUST BE ORIENTED PROPERLY. 3. CHIP PULLER SHOULD BE USED. 4. ANY DAMAGE TO THE UNIT FROM THIS PROCEDURE IS NOT THE RESPONSIBILITY OF PNEUMERCATOR CO. Page 89 of 104...

  • Page 90: Printer Paper And Ribbon Replacement

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 18 - Printer Paper and Ribbon Replacement a) Set the inked ribbon spools as Figure Ribbon Spool 18-1 shows. Place the spools onto Tension Roller the ribbon feed mechanism and then...
  • Page 91 FOR A NORMALLY CLOSED SETTING: REMOVE THE FLOAT CLIP. LEAK REMOVE THE FLOAT, THEN PUT IT SWITCH BACK ON IN REVERSE. RE-ATTACH FLOAT CLIP. PART NUMBER: PNEUMERCATOR Liquid Level Control Systems UNLESS OTHERWISE SPECIFIED APPROVALS DATE DIMENSIONS ARE IN INCHES BOTTOM FRACTIONS...

  • Page 92: Rsu-800 Installation

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 20 - RSU-800 Installation DESCRIPTION: GREEN WHITE BLACK Reservoir Sensing Unit 2-1/8" 16 FT. 4-CONDUCTOR CABLE MODEL RSU 800 designed Hydrostatic Monitoring of Double Wall HIGH Fiberglass Tanks. It is installed in the...
  • Page 93 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Figure 20 - RSU-800 Installation (continued) All conduit and electrical junction boxes CONTROL PANEL must be water-tight. Ensure that wiring meets all local, state and national codes. JUNCTION BOX TESTING: WHITE Test the sensing unit prior to installation.

  • Page 94: Keypad Error Codes

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Appendix A Keypad Error Codes: 0 – Print Buffer Overflow 1 – Unimplemented Command 2 – Clock has Lost Time (battery failure) 3 – Range Error 4 – RAM (memory) Error 5 –...
  • Page 95 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Appendix B *** The relay listed for the alarm condition is the factory default. Relay programming may be changed by keypad or RS-232 command. A check mark () under the Horn heading indicates that the factory default is that the alarm condition actuates the horn.
  • Page 96 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Code Condition Relay Horn Water Leak Channel 1 Water Leak Channel 2 Water Leak Channel 3 Water Leak Channel 4 Water Leak Channel 5 Water Leak Channel 6 Water Leak Channel 7...
  • Page 97 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Appendix C Product Code Product Name Product #2 Oil #3 Oil #4 Oil #5 Oil #6 Oil Fuel Oil Heating Oil Diesel Kerosene Motor Oil Waste Oil Hydraulic Oil Cutting Oil...
  • Page 98 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Product Code Product Name Waste Product Used Oil Waste Water Water AV Gas Jet Fuel Jet A JP-4 JP-5 JP-6 JP-8 JP-10 Rocket Fuel Special * Codes 60, 61, 62, 63 are for custom names...

  • Page 99: Rs-232 Connector

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Appendix D RS-232 Connector Pinouts: DB-25 Connector pin Signal Direction Protective Ground ------------------ to modem to gauge to modem to gauge to gauge Signal Ground ------------------ to gauge to modem RING to gauge NOTE: DTR is actively pulled to a true state.

  • Page 100: Rs-232 Setup

    PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Appendix E RS-232 Setup: **** Baud rate changes must be entered from LDE-740 keypad Baud Rates 1200 2400 (default) 4800 9600 Word Length 7 bits Parity Even Parity Stop Bits 1 Stop Bit...
  • Page 101 PNEUMERCATOR CO., INC. LDE-740 System Operation and Installation Manual Warranty We warrant that our equipment, if installed according to instructions will be free from defects in material and workmanship for a period of one (1) year following the date of original shipment by Pneumercator.
  • Page 104 Distributed by: PNEUMERCATOR Liquid Level Control Systems Pneumercator Co. 1785 Expressway Drive North Hauppauge NY 11788 TEL (631) 293-8450 • FAX: (631) 293-8533 http://www.pneumercator.com...

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