Liquid Controls SP3850 User Manual

Proprietary Notice

The information contained in this publication is derived in part from proprietary and patent data. This information has been prepared for the expressed purpose of assisting operating and maintenance personnel in the efficient use of the instrument described herein. Publication of this information does not convey any rights to use or reproduce it or to use for any purpose other than in connection with the installation, operation and maintenance of the equipment described herein.

WARNING!

This instrument contains electronic components that are susceptible to damage by static electricity. Proper handling* procedures must be observed during the removal, installation, or handling of internal circuit boards or devices.

*Handling Procedure

1. Power to unit must be removed.

2. Personnel must be grounded, via wrist strap or other safe, suitable means, before any printed circuit board or other internal device is installed, removed or adjusted.

3. Printed circuit boards must be transported in a conductive bag or other conductive container. Boards must not be removed from protective enclosure until the immediate time of installation. Removed boards must be placed immediately in protective container for transport, storage, or return to factory.

Comments

This instrument is not unique in its content of ESD (electrostatic discharge) sensitive components. Most modern electronic designs contain components that utilize metal oxide technology (NMOS, CMOS, etc.). Experience has proven that even small amounts of static electricity can damage or destroy these devices. Damaged components, even though they appear to function properly, may exhibit early failure.

SAFETY INSTRUCTIONS

The following instructions must be observed.

• This instrument was designed and is checked in accordance with regulations in force EN 60950 (“Safety of information technology equipment, including electrical business equipment”). A hazardous situation may occur if this instrument is not used for its intended purpose or is used incorrectly. Please note operating instructions provided in this manual.

• The instrument must be installed, operated and maintained by personnel who have been properly trained. Personnel must read and understand this manual prior to installation and operation of the instrument.

• This instrument is internally fused. Replace the internal fuse with the following specified type and rating only:

Input Power Recommended Fuse

115 VAC 160 mA slow blow fuse 230 VAC 80 mA slow blow fuse

12-24 VDC 800 mA slow blow fuse

Disconnect power supply before replacing fuse!

• The manufacturer assumes no liability for damage caused by incorrect use of the instrument or for modifications or changes made to the instrument.

Symbols Used On Unit

Number Symbol Publication Description

1 IEC 417, No. 5031 Direct current

2 IEC 417, No. 5172 Equipment protected throughout by DOUBLE

INSULATION or REINFORCED INSULATION (equivalent to Class II of IEC 536–see annex H)

ISO 3864, No. B.3.1 Caution (refer to accompanying documents)

Technical Improvements

• The manufacturer reserves the right to modify technical data without prior notice.

1. DESCRIPTION

1.1 Unit Description .................................................................................................... 1

1.2 Unit Features ........................................................................................................ 1

1.3 Specifications ........................................................................................................ 2

2. INSTALLATION

2.1 General Mounting Hints ........................................................................................ 6

2.2 Mounting Diagrams ............................................................................................... 6

3. APPLICATIONS

3.1 Liquid Volume ....................................................................................................... 7

3.2 Corrected Liquid Volume ...................................................................................... 8

3.3 Liquid Mass ........................................................................................................... 9

3.4 Batching .............................................................................................................. 10

3.5 Corrected Gas Volume ........................................................................................11

3.6 Gas Mass ............................................................................................................ 12

4. WIRING

SP3850 Flow Computer

CONTENTS

4.1 Typical Batcher Wiring ........................................................................................ 13

4.2 Typical Rate/Total Wiring .................................................................................... 13

4.3 Typical Thermistor Wiring ................................................................................... 13

4.4 Typical Pressure / Temperature Wiring ............................................................... 13

4.5 Wiring In Hazardous Areas ................................................................................. 14

5. UNIT OPERATION

5.1 Front Panel Operation Concept for Run Mode ................................................... 15

5.2 General Operation .............................................................................................. 16

5.3 Ratemeter/Totalizer Operation ............................................................................ 16

5.3.1 Password Protection for Rate/Total mode ........................................... 16

5.3.2 Relay Operation in Rate/Total mode ................................................... 16

5.3.3 Pulse Output in Rate/Total mode......................................................... 16

5.3.4 Analog Output in Rate/Total mode ....................................................... 16

5.3.5 RS-232 Serial Port Operation in Rate/Total mode .............................. 17

5.3.6 RS-485 Serial Port Operation in Rate/Total mode .............................. 17

5.4 Batcher Operation ............................................................................................... 18

5.4.1 Batcher Configuration .......................................................................... 18

5.4.2 Password Protection for Batcher mode ............................................... 19

5.4.3 Relay Operation in Batcher mode ....................................................... 19

5.4.4 Pulse Output in Batcher mode ........................................................... 19

5.4.5 Analog Output in Batcher mode .......................................................... 19

5.4.6 RS-232 Serial Port Operation in Batcher mode ................................. 20

5.4.7 RS-485 Serial Port Operation in Batcher mode ................................. 20

6. PROGRAMMING

6.1 Front Panel Operation Concept for Program Mode ............................................ 21

6.2 Setup Menus ....................................................................................................... 22

6.3 Setup Sub-Menus ............................................................................................... 23

6.3.1 INSTRUMENT TYPE........................................................................... 23

6.3.2 SELECT FLOW EQUATION................................................................ 24

6.3.3 SETUP INDICATORS (Total) ............................................................... 24

6.3.4 SETUP INDICATORS (Density) .......................................................... 24

6.3.5 SETUP INDICATORS (Rate)............................................................... 25

6.3.6 SETUP INDICATORS (Temperature) .................................................. 25

6.3.7 SETUP INDICATORS (Pressure) ........................................................ 26

6.3.8 SETUP FLOW INPUT ......................................................................... 27

6.3.9 SETUP AUX1 INPUT........................................................................... 29

6.3.10 SETUP AUX2 INPUT......................................................................... 30

6.3.11 SET FLUID PROPERTIES ................................................................ 31

6.3.12 SETUP PULSE OUTPUT .................................................................. 32

6.3.13 SETUP ANALOG OUTPUT ............................................................... 32

6.3.14 SETUP RELAYS................................................................................ 33

6.3.15 SETUP CONTROL INPUTS(RATE/TOTAL) ..................................... 35

6.3.16 SETUP CONTROL INPUTS(BATCH) ................................................ 35

6.3.17 SETUP REALTIME CLOCK(Time) .................................................... 36

6.3.18 SETUP REALTIME CLOCK(Date) .................................................... 36

6.3.19 SERIAL USAGE (RS-232/485) .......................................................... 37

6.3.20 SERIAL USAGE (Modem Options) ................................................... 37

6.3.21 SET DATALOG/PRINT(Configure) .................................................... 38

6.3.22 SET DATALOG/PRINT (Select_list) .................................................. 39

6.3.23 ADMINISTRATIVE SETUP ................................................................ 39

6.3.24 SETUP NETWORK CARD ................................................................ 40

7. PRINCIPLE OF OPERATION

7.1 General ............................................................................................................... 41

7.2 Flow Equations ................................................................................................... 41

7.3 Calculating the Expansion Factor ....................................................................... 44

7.4 Computation of Viscosity Coef. A and B ............................................................. 45

7.5 Linearization Table .............................................................................................. 46

7.5.1 Linearization Table General Information .............................................. 46

7.5.2 Linearization Table for Pulse Inputs ..................................................... 46

7.5.3 Linearization Table Interpolation .......................................................... 46

7.6 Universal Viscosity Curve (UVC) ........................................................................ 46

7.7 Strouhal Roshko Curve (StRo) ........................................................................... 46

8. TEST, SERVICE and MAINTENANCE

8.1 Test Menus ......................................................................................................... 47

8.2 Test Sub-Menus .................................................................................................. 48

8.2.1 Audit Trail ............................................................................................. 48

8.2.2 Error History ........................................................................................ 48

8.2.3 Print System Setup .............................................................................. 48

8.2.4 Keypad test ......................................................................................... 49

8.2.5 Display test .......................................................................................... 49

8.2.6 Calibrate Aux1 0mA............................................................................. 50

8.2.7 Calibrate Aux1 20mA........................................................................... 50

8.2.8 Calibrate Aux2 0mA............................................................................. 51

8.2.9 Calibrate Aux2 20mA........................................................................... 51

8.2.10 Calibrate Thermistor: 100 Ohms ....................................................... 52

8.2.11 Calibrate Thermistor: Open ............................................................... 52

8.2.12 Calibrate Aux2 0V.............................................................................. 53

8.2.13 Calibrate Aux2 10V............................................................................ 53

8.2.14 Calibrate 100 ohm RTD ..................................................................... 53

8.2.15 Calibrate 4mA Out ............................................................................. 54

8.2.16 Calibrate 20mA Out ........................................................................... 54

8.2.17 Analog In Test .................................................................................... 54

8.2.18 Pulse input test .................................................................................. 55

8.2.19 Analog out test................................................................................... 55

8.2.20 Excitation out test .............................................................................. 55

8.2.21 Pulse out test ..................................................................................... 56

8.2.22 Relay test ......................................................................................... 56

8.2.23 Control input test ............................................................................... 56

8.2.24 Battery Voltage test ........................................................................... 57

8.2.25 Data logger utility ............................................................................... 57

8.3 Internal Fuse Replacement................................................................................. 58

SP3850 Flow Computer

CONTENTS

9. RS-232 SERIAL PORT

9.1 RS-232 Serial Port Description ........................................................................... 59

9.2 Instrument Setup by PC Over Serial Port ........................................................... 59

9.3 Operation of Serial Communication Port with Printers ....................................... 59

9.4 SP3850 RS-232 Port Pinout ............................................................................... 59

10. RS-485 SERIAL PORT

10.1 RS-485 Serial Port Description ......................................................................... 60

10.2 General ............................................................................................................. 60

10.3 Operation of Serial Communication Port with PC ............................................. 60

10.4 SP3850 RS-485 Port Pinout ............................................................................. 60

11. FLOW COMPUTER SETUP SOFTWARE

11.1 System Requirements ....................................................................................... 61

11.2 Cable and Wiring Requirements ....................................................................... 61

11.3 Installation for Windows™3.1 or 3.11................................................................ 61

11.4 Using the Flow Computer Setup Software ........................................................ 62

11.5 File Tab .............................................................................................................. 62

11.6 Setup Tab .......................................................................................................... 62

11.7 View Tab ............................................................................................................ 63

11.8 Misc. Tab ........................................................................................................... 63

12. GLOSSARY OF TERMS

12 Glossary Of Terms ............................................................................................... 64

13. DIAGNOSIS AND TROUBLESHOOTING

13.1 Response of SP3850 on Error or Alarm: .......................................................... 68

13.2 Diagnosis Flow Chart and Troubleshooting ...................................................... 69

13.3 Error & Warning Messages: .............................................................................. 70

13.3.1 Sensor/Process Alarms ..................................................................... 70

13.3.2 Self Test Alarms ................................................................................. 71

APPENDIX A (

APPENDIX B (Setup Menus) ............................................................................................. 73

Fluid Properties Table) ................................................................. 72

Unit Description 1. Description

1.1 Unit Description:

The SP3850 Flow Computer satisfies the instrument requirements for turbine and other pulse producing flowmeters in liquid and gas applications. Multiple flow equations and instrument functions are available in a single unit with many advanced features.

The alphanumeric display shows measured and calculated parameters in easy to understand format. Single key direct access to measurements and display scrolling is supported

The versatility of the SP3850 permits a wide measure of parameters within the instrument package. The various hardware inputs and outputs can be “soft” assigned to meet a variety of common application needs. The user “soft selects” the usage of each input/output while configuring the instrument.

SP3850 Flow Computer

Unit Features

The isolated analog output can be chosen to follow volume flow, corrected volume flow, mass flow, temperature, pressure or density by means of a menu selection. Most hardware features are assignable by this method.

The user can assign the standard RS-232 Serial Port for data recording, transaction printing, or for connection to a computer or modem.

Front panel selection of fluid type is supported. Up to 10 fluids can be stored in the unit

Linearization options include UVC, Strouhal/Roshko and 40 point linearization tables.

A Service or Test mode is provided to assist the user during start-up system check out by monitoring inputs and exercising outputs and printing system setup.

1.2 Unit Features:

The SP3850 Flow Computer offers the following features:

• Supports Turbine and Other Pulse Producing Flowmeters

• Menu Selectable Hardware & Software Features

• Two Line VFD

• Universal Viscosity Curve (UVC) and Strouhal/Roshko Advanced Linearization Methods

• Advanced Batching Features: Overrun Compensation, Print End of Batch

• Isolated Outputs (Pulse, Analog and Relay) Standard

• RS-232 Port Standard, RS-485 Optional

• Windows™ Setup Software

• Gas & Liquid Flow Equations

• DDE Server & HMI Software Available

• Selectable Fluids

• Enable Totalization Only Between Upper and Lower Temperature Limits

1.3 Specifications:

SP3850 Flow Computer

Specifications: Environmental

Indoor Use Altitude up to 2000m Operating Temperature: 0°C to +50°C

(-20°C to 55°C optional)

Storage Temperature: -40°C to +85 C Maximum Relative Humidity : 80% for temperatures

up to 31°C decreasing linearly to 50% RH at 40°C

Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage Transient overvoltage according to INSTALLATION CATEGORY II (see UL 3101-1 Annex J) POLLUTION DEGREE 2 in accordance with IEC 664 (see 3.7.3) Materials: UL, CSA, VDE approved

Listing: CE Light Industrial,

UL File #: E192404

Display

Type: 2 lines of 20 characters, VFD Character Size: 0.3" nominal User selectable label descriptors and units of measure

Keypad

Keypad Type: Membrane Keypad Keypad Rating: Sealed to Nema 4 Number of keys: 16

Enclosure

Size: See Dimensions Depth behind panel: 6.5" including mating connector Type: DIN Materials: Plastic, UL94V-0, Flame retardant Bezel: Textured per matt finish Equipment Labels: Model, safety, and user wiring

Power Input

The factory equipped power option is internally fused. An internal line to line filter capacitor is provided for added transient suppression. Order Option AC110: 110VAC: 85 to 127 Vrms,

50/60 Hz

Order Option AC220: 220VAC: 170 to 276 Vrms,

50/60 Hz Order Option DC12: 12VDC: 10.5 to 14 VDC Order Option DC24: 24VDC: 18 to 24 VDC

Flow Inputs:

Pulse Inputs:

Number of Flow Inputs: one Configurations supported: single input or quadrature (menu selectable) Input Impedance: 10 KΩ nominal Pullup Resistance: 10 KΩ to 5 VDC (menu

selectable)

Pull Down Resistance: 10 KΩ to common Trigger Level: (menu selectable)

High Level Input Logic On: 3 to 30 VDC Logic Off: 0 to 1 VDC Low Level Input (mag pickup)

Selectable sensitivity: 10 mV & 100 mV Minimum Count Speed: Selectable: 1 - 99 secs Maximum Count Speed: Selectable: 40, 3k, 20kHz Overvoltage Protection: 50 VDC Fast Transient: Protected to 500 VDC

(Capacitive Clamp)

Auxilliary/Compensation Inputs

The compensation inputs are menu selectable for temperature, pressure, density or not used.

Operation: Ratiometric Accuracy: 0.01% FS Thermal Drift: Less than 100 ppm/C Basic Measurement Resolution: 16 bit Update Rate: 1 update/sec minimum Automatic Fault detection:

Signal Over-range/under-range Current Loop Broken RTD short RTD open Fault mode to user defined default settings Transient Protection: 500 V (Capacitive Clamp) Reverse Polarity: No ill effects Over-Voltage Limit (Voltage Input): 50 VDC

Available Input Ranges

Voltage: 0-10 VDC, 0-5 VDC, 1-5 VDC Current: 4-20 mA, 0-20 mA Resistance: 100 Ohms DIN RTD or

Proprietary Thermistor - YSI55016

100 Ohm DIN RTD (DIN 42-760, BS 1904):

Three Wire Lead Compensation Internal RTD linearization learns ice point

resistance

1 mA Excitation current with reverse polarity

protection

Temperature Resolution: 0.01 C

Control Inputs

Switch Inputs are menu selectable for Start, Stop, Reset, Lock, Inhibit, Alarm Acknowledge, Print or Not Used. Control Input Specifications

Input Scan Rate: 10 scans per second Logic 1: 4 - 30 VDC Logic 0: 0 - 0.8 VDC Transient Suppression: 500 V fast transient

(Capacitive Clamp)

Input Impedance: 100 KΩ Control Activation: Positive Edge or Pos. Level based on product definition

Excitation Voltage

110/220 VAC Powered Units

Menu Selectable: 5, 12 or 24 VDC @ 100mA

24 VDC Powered Units

Menu Selectable: 5 or 12 VDC @ 100mA

12 VDC Powered Units

5 VDC @ 100mA

Fuse

Internal self resetting fuse supplied

Relay Outputs

The relay outputs are menu assignable to (Individually for each relay) Low Rate Alarm, Hi Rate Alarm, Prewarn Alarm, Preset Alarm, Temperature, Pressure, Density, Pulse Output (pulse options) or General purpose warning (security).

Number of relays: 2 (4 optional) Contact Style: Form C contacts Contact Ratings: 250 VAC @ 5 amps

30 VDC @ 5 amps

Fast Transient Threshold: 1000 V

SP3850 Flow Computer

Serial Communication

The serial port can be used for printing, datalogging, modem connection and communication with a computer. RS-232:

Device ID: 01-99 Baud Rates: 300, 600, 1200, 2400, 4800, 9600,

19200 Parity: None, Odd, Even Handshaking: None, Software, Hardware Print Setup: Configurable print list and formatting

RS-485 (optional):

Device ID: 01-247 Baud Rates: 2400, 4800, 9600, 19200 Parity: None, Odd, Even Protocol: Modbus RTU (Half Duplex)

Analog Output

The analog output is menu assignable to correspond to the Uncompensated Volume Rate, Corrected Volume Rate, Mass Rate, Temperature, Pressure, Density, Volume Total, Corrected Volume Total or Mass Total. Type: Isolated Current Sourcing (on AC units) Isolated I/P/C: 500 V Available Ranges: 4-20 mA, 0-20 mA Resolution: 12 bit Accuracy: 0.05% FS at 20 Degrees C Update Rate: 1 update/sec minimum Temperature Drift: Less than 200 ppm/C Maximum Load: 1000 ohms (at nominal line voltage) Compliance Effect: Less than .05% Span 60 Hz rejection: 40 dB minimum EMI: No effect at 3 V/M Calibration: Operator assisted Learn Mode Averaging: User entry of DSP Averaging constant to cause an smooth control action.

Isolated Pulse output

The isolated pulse output is menu assignable to Uncompensated Volume Total, Compensated Volume Total or Mass Total. Isolation I/O/P: 500 V Pulse Output Form: Open Collector Maximum On Current: 125 mA Maximum Off Voltage: 30 VDC Saturation Voltage: 1.0 VDC Maximum Off Current: 0.1 mA Pulse Duration: User selectable: 10 or 100 mSec Pulse output buffer: 8 bit Pulse Rate Averaging: Standard Fault Protection

Reverse polarity: Shunt Diode Transient Protection: 500 VDC

(Capacitive Clamp)

Operating Mode

The Flow Computer can be thought of as making a series of measurements of flow, temperature/ pressure/density sensors and then performing calculations to arrive at a result(s) which is then updated periodically on the display. The analog output, the pulse output, and the alarm relays are also updated. The cycle then repeats itself.

Step 1:Update the measurements of input signals-

Raw Input Measurements are made at each input using equations based on input signal type selected. The system notes the “out of range” input signal as an alarm condition.

Step 2:Compute the Flowing Fluid Parameters-

The temperature, pressure, viscosity, and density equations are computed as needed based on the flow equation and input usage selected by the user.

Step 3 : Compute the Volumetric Flow-

Uncompensated flow is the term given to the flow in volume units. The value is computed based on the flowmeter input type selected and augmented by any performance enhancing linearization that has been specified by the user.

Step 4: Compute the Corrected Volume Flow at

Reference ConditionsIn the case of a corrected volume flow calculation, the corrected volume flow is computed as required by the selected compensation equation.

Step 5 : Compute the Mass Flow-

All required information is now available to compute the mass flow rate as volume flow times density.

Step 6: Check Flow Alarms-

The flow alarm functions have been assigned to one of the above flow rates during the setup of the instrument. A comparison is now made by comparing the current flow rates against the specified hi and low limits.

Step 7: Compute the Analog Output-

This designated flow rate value or other process value is now used to compute the analog output.

Step 8: Compute the Flow Totals by Summation-

A flow total increment is computed. The totalizer format also includes provisions for total rollover.

Step 9: Total Preset Comparisons-

The total associated with a preset function is then compared against the corresponding preset value and any required control actions taken.

Step 10: Pulse Output Service-

The pulse output is next updated by scaling the total increment which has just been determined by the pulse output scaler and summing it to any residual pulse output amount.

Step 11: Update Display and Printer Output-

The instrument finally runs a task to update the various table entries associated with the front panel display and serial outputs.

SP3850 Flow Computer

Setup Mode

The setup mode is password protected by means of numeric operator and supervisor lock out codes established by the user. In addition, a secret, manufacturers numeric unlock entry sequence is available.

The system also provides a minimum implementation of an “audit trail” which tracks significant setup changes to the unit. This feature is increasingly being found of benefit to users or simply required by Weights and Measurement Officials in systems used in commerce, trade, or “custody transfer” applications.

A software program is available which runs on a PC using a RS-232 Serial for connection to the Flow Computer. Illustrative examples may be downloaded in this manner.

The setup mode has numerous subgrouping of parameters needed for flow calculations. There is a well conceived hierarchy to the setup parameter list. Selections made at the beginning of the setup affect offerings further down in the lists.

In the setup mode, the flow computer activates the correct setup variables based on the instrument configuration, the flow equation, and the hardware selections made for the compensation transmitter type, the flow transmitter type, and meter enhancements (linearization) options selected. All required setup parameters are enabled. All setup parameters not required are suppressed.

A help line prompt is provided for each entry. In addition a help message is available which may be accessed by depressing the “HELP” key.

Also note that in the setup mode are parameter selections which have preassigned industry standard values. The unit will assume these values unless they are modified by the user.

Most of the process input variables have available a “default” or emergency value which must be entered. These are the values that the unit assumes when a malfunction is determined to have occurred on the corresponding input.

It is possible to enter in a nominal constant value for temperature, pressure or density, or analog flow inputs by placing the desired nominal value into both the lo and hi values. This is also a convenience when performing bench top tests without simulators.

Maintenance Mode:

The Maintenance Mode of the SP3850 is the Test and Calibration Mode for the device. This mode provides a number of specialized utilities required for factory calibration, instrument checkout on startup, and periodic calibration documentation.

A supervisor password is required to gain access to this specialized mode of operation. Normally quality, calibration, and maintenance personnel will find this mode of operation very useful. It is also useful for factory testing.

Many of these tests may be used during start-up of a new system. Inputs signals may be read, and output signals may be exercised to verify the electrical interconnects before the entire system is put on line.

The following action items may be performed in the Maintenance Mode:

Print Calibration/Maintenance Report Examine Audit Trail Perform Keypad Checkout Perform Display Checkout Perform Pulse Input Checkout Perform Pulse Output Checkout Perform Control Input Checkout Perform Relay Output Checkout Perform Analog Input Checkout Perform Analog Output Checkout Calibrate Analog Inputs using the Learn Feature Calibrate Analog Output using the Learn Feature Battery Check Datalog Printing and Clearing

Note that a calibration of the analog input/output will advance the audit trail counters since it effects the accuracy of the system.

RS-232 Serial Port

The SP3850 has a general purpose RS-232 Port which may be used for any one of the following purposes:

Transaction Printing Periodic Printing of Datalog Print Internal Datalog Remote Metering by Modem (optional) Computer Communication Link Configuration by Computer Print System Setup Print Calibration/Malfunction History Remote Control

Instrument Setup by PC’s over Serial Port

A Diskette program is provided with the SP3850 that enables the user to rapidly configure the SP3850 using a Personnel Computer. Included on the diskette are common instrument applications which may be used as a starting point for your application. This permits the user to have an excellent starting point and helps speed the user through the instrument setup.

SP3850 Flow Computer

Operation of Serial Communication Port with Printers

SP3850’s RS-232 channel supports a number of operating modes. One of these modes is intended to support operation with a printer in metering applications requiring transaction printing, data logging and/or printing of calibration and maintenance reports.

For transaction printing, the user defines the items to be included in the printed document. The user can also select what initiates the transaction print generated as part of the setup of the instrument. The transaction document may be initiated via a front panel key depression, a remote contact closure, or upon completion of a batch.

In data logging, the user defines the items to be included in each data log as a print list. The user can also select when or how often he wishes a data log to be made. This is done during the setup of the instrument as either a time of day or as a time interval between logging.

The system setup and maintenance report lists all the instrument setup parameters and usage for the current instrument configuration. In addition, the Audit trail information is presented along with a status report listing any observed malfunctions which have not been corrected.

Operation of Serial Port with Modems (optional)

The SP3850 RS-232 channel supports a number of operating modes. One of these modes is intended to support operation with a modem in remote metering applications.

An external modem is intentionally being used with the SP3850. This permits use with the variety of modem standards worldwide while avoiding the specialized approvals required for equipment that is deemed to fall under the category of telecommunication equipment.

In the modem mode, the SP3850 is assumed to be operating in a remote metering role. The SP3850 will support key items in the Hayes Compatible “AT” Command Set. In this role, the SP3850 will have the following special abilities:

0. Monitor the modem status as a task of the

system

1. Instruct the modem to answer an incoming call

ATA

2. Respond to the calling modem at the

programmed baud rate and protocol

3. Terminate the telephone connection in event

the connection is lost.

In addition, the SP3850 will be capable of initiating a call to a designated telephone number in the event of a metering malfunction.

The user initiates the printing of this report at a designated point in the menu by pressing the print key on the front panel.

2. Installation

SP3850 Flow Computer

2. Installation

General Mounting Hints

Mounting Procedure

2.1 General Mounting Hints:

The SP3850 Flow Computer should be located in an area with a clean, dry atmosphere which is relatively free of shock and vibration. The unit is installed in a 5.43" (138mm) wide by 2.68" (68mm) high panel cutout. (see Mounting Dimensions) To mount the Flow Computer, proceed as follows:

a. Prepare the panel opening. b. Slide the unit through the panel cutout until the it touches the panel. c. Install the screws (provided) in the mounting bracket and slip the

bracket over the rear of the case until it snaps in place.

d. Tighten the screws firmly to attach the bezel to the panel. 3 in. lb. of

torque must be applied and the bezel must be parallel to the panel.

Termination Connectors:

Minimum Wire Gauge: 22 AWG Maximum Wire Gauge: 14 AWG Voltage/current limits are limited by unit specifications.

Permanently Connected Equipment: UL 3101-1, Section 6.12.2.1 specifies that:

•A switch or circuit breaker shall be included in the building installation;

• It shall be in close proximity to the equipment and within easy reach of the OPERATOR;

• It shall be marked as the disconnecting device for the equipment.

Ensure that the switch or circuit breaker chosen is suitable for the power requirements of the unit.

2.2 Mounting Diagrams:

Standard Mounting Bezel Kit Mounting

SP3850

Mounting Bracket

Dimensions

Mounting Bracket

SP3850

Bezel Adaptor

Gasket

3.43 (87)

RATE TOTAL

START

GRAND6SCROLL7PRE 28DENS

STOP

5.67 (144)

GPM

147.43 GAL

267395.749

TEMP4PRE 13RATE2TOTAL

TIME

–

6.18 Dotted Line Shows Optional Bezel Kit

CLEAR•MENU

HELP

2.83 (72)

ENTER

6.15

0.28 (7.2)

0.4 (10)

Dimensions are in inches (mm)

(156)

0.5

(13)

5.43

(138)

Panel

Cutout

2.68 (68)

3. Applications

SP3850 Flow Computer

Liquid Volume

3.1 Liquid Volume

Measurements:

A flowmeter measures the actual volume in a liquid line. A temperature sensor can also be installed to correct for liquid thermal expansion (see

3.2 Corrected Volume).

Calculations:

• Volume flow is calculated using the flowmeter frequency output and the user entered K-Factor.

Output Results:

• Display Results

Flow Rate, Resettable Total, Non-Resettable Total

• Analog Output

Rate or Total

• Pulse Output

Total

• Relay Outputs

Rate or Total Alarms

Liquid Volume Illustration

Applications:

The Flow Computer can monitor actual volume flow and total of any liquid. Flow alarms are provided via relays and datalogging is available via analog (4-20mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

CLEAR•MENU

HELP

–

ENTER

Calculations

Flowmeter

Pulse Input; Average K-Factor

input frequency • time scale factor

Volume Flow =

K-Factor

SP3850 Flow Computer

Corrected Liquid Volume

3.2 Corrected Liquid Volume

Measurements:

A flowmeter measures the actual volume in a liquid line. A temperature sensor is installed to correct for liquid thermal expansion.

Calculations:

• Corrected Volume at a base or reference condition is calculated using the flow and temperature inputs as well as the thermal expansion coefficient stored in the flow computer. Use the "SET FLUID PROPERTIES" submenu to define reference temperature and density values for standard conditions.

Output Results:

• Display Results

Corrected Flow Rate, Resettable Total, Non-Resettable Total, Temperature, Density

• Analog Output

Corrected Rate, Total, Temperature or Density

• Pulse Output

Corrected Total

• Relay Outputs

Corrected Rate , Total or Temperature Alarms

Corrected Liquid Volume Illustration

Applications:

Monitoring corrected volume flow and total of any liquid. Flow alarms are provided via relays and datalogging is available via analog (4-20mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

CLEAR•MENU

HELP

–

ENTER

Calculations

Flowmeter Temperature Transmitter

Volume Flow

As calculated in section 3.1

Corrected Volume Flow

(Temp. Transmitter)

Corrected Volume Flow = vol. flow * (1 - Therm.Exp.Coef. *(Tf-Tref)) (See also API 2540 equation)

SP3850 Flow Computer

Liquid Mass

3.3 Liquid Mass

Measurements:

Actual volume is measured by the flow element. Temperature is measured by the temperature transmitter. A density transmitter can be used for direct density measurements or a pressure transmitter may be utilized.

Calculations:

• The density and mass flow are measured directly or calculated using the reference density and the thermal expansion coefficient of the liquid (see "SET FLUID PROPERTIES" submenu)

Output Results:

• Display Results

Mass Flow Rate, Resettable Total, Non-Resettable Total, Temperature, Density or Pressure

• Analog Output

Mass Rate, Total, Temperature or Density or Pressure

• Pulse Output

Mass Total (corrected or uncorrected)

• Relay Outputs

Mass Flow Rate, Total, Temperature, Pressure or Density Alarms

Liquid Mass Illustration

Applications:

Monitoring mass flow and total of any liquid. Flow alarms are provided via relays and datalogging is available via analog (4-20mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

–

CLEAR•MENU

HELP

ENTER

Calculations

Flowmeter Temp./Dens.

Tr ansmitter

Volume Flow

As calculated in section 3.1

Mass Flow

Mass Flow = volume flow * density

SP3850 Flow Computer

Batching

3.4 Batching

Measurements:

A flowmeter measures the actual volume in a liquid line. A temperature sensor can also be installed to correct for liquid thermal expansion (see

3.2 Corrected Volume).

Calculations:

• Volume flow is calculated using the flowmeter frequency output and the user entered K-Factor.

• Corrected Volume is calculated using the flow and temperature inputs as well as the thermal expansion coefficient stored in the flow computer.

• Comparison of the amount delivered with desired batch amount.

Output Results:

• Display Results

Flow Rate, Batch Total, Non-Resettable Total, Temperature, Density or Pressure

• Analog Output

Rate, Total, Temperature, Density or Pressure

• Pulse Output

Total (volume or corrected volume/mass)

• Relay Outputs

Batch Total, Rate, or Temperature Alarms

Batching Illustration

Applications:

Batching and monitoring flow and total of any liquid. Batching is accomplished via relays and datalogging is available via analog (420mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

CLEAR•MENU

HELP

–

ENTER

Calculations

Flowmeter Temperature Transmitter

Solenoid Valve

(Optional)

Volume Flow

As calculated in section 3.1

Corrected Volume Flow

(Temp. Transmitter)

Corrected Vol. Flow = volume flow * (1 - Therm.Exp.Coef. *(Tf-Tref)) (See also API 2540 equation)

SP3850 Flow Computer

CORRECTED GAS VOLUME

3.5 Corrected Gas Volume

Measurements:

A flowmeter measures the actual volume flow in a gas line. Temperature and pressure sensors are installed to measure temperature and pressure.

Calculations:

• Corrected Volume is calculated using the flow, temperature and pressure inputs as well as the gas characteristics stored in the flow computer (see "FLUID DATA" submenu). Use the "FLUID" submenu to define reference temperature and reference pressure values for standard conditions.

Output Results:

• Display Results

Corrected Volume or Actual Volume Flow Rate, Resettable Total, Non-Resettable Total, Temperature, Pressure, Density

• Analog Output

Corrected Volume or Actual Volume Flow Rate, Temperature, Pressure, Density

• Pulse Output

Corrected Volume or Actual Volume Total

• Relay Outputs

Corrected Volume Flow Rate, Total, pressure, Temperature, Density

Corrected Gas Volume Illustration

Applications:

Monitoring corrected volume flow and total of any gas. Flow alarms are provided via relays and datalogging is available via analog (4-20mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

–

CLEAR•MENU

HELP

ENTER

Calculations

Pressure

Flowmeter Temperature

Tr ansmitter

Volume Flow

Pulse Input; Average K-Factor

Volume Flow =

input frequency • time scale factor

K-Factor

Corrected Volume Flow

Corrected Volume Flow = Volume Flow •

Tr ansmitter

P . T

ref

• T

. Z

ref

• Z

SP3850 Flow Computer

GAS MASS

3.6 Gas Mass Measurements:

A flowmeter measures the actual volume flow in a gas line. Temperature and pressure sensors are installed to measure temperature and pressure.

Calculations:

• Density and mass flow are calculated using gas characteristics stored in the flow computer.

Output Results:

• Display Results

Mass or Volume Flow Rate, Resettable Total, Non-Resettable Total, Temperature, Pressure, Density

• Analog Output

Mass or Volume Flow Rate, Temperature, Pressure, Density

• Pulse Output

Mass or Volume Total

• Relay Outputs

Mass or Volume Flow Rate, Total, Pressure, Temperature, Density Alarms

Gas Mass Illustration

Applications:

Monitoring mass flow and total of gas. Flow alarms are provided via relays and datalogging is available via analog (4-20mA) and serial outputs.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

CLEAR•MENU

HELP

–

ENTER

Calculations

Pressure

Flowmeter Temperature

Tr ansmitter

Mass Flow

Mass Flow = Actual Volume Flow •

= Reference density

ref

= Reference temperature

ref

= Reference pressure

ref

= Reference Z-factor

ref

Tr ansmitter

ref

•

P . T

ref

• T

. Z

ref

• Z

4 WIRING

SP3850 Flow Computer

4.1 Typical Batcher Wiring:

MOV recommended

FLOW METER

Remote Electronic Counter

115 VAC SOLENOID VALVE

123456

115 VAC

(+) V Signal

Common

StartStop

115 VAC

DC OUTPUT

PULSE IN 1

PULSE IN 2

COMMON 5 6 7 8 9 10 11 12 13 PULSE OUTPUT + 14 15 16

17 NC 18 COM 19 20 21 22

Vin + Press/Dens

---------

RTD EXCIT + Thermistor

RTD SENS + Iin + Temp

RTD SENS - Iin + Press/Dens

CNTR IN 1

CNTR IN 2

CNTR IN 3

COMMON

PULSE OUTPUT -

ANALOG OUTPUT +

ANALOG OUTPUT -

25 NC

RLY1 NO NC COM

RLY2 NO

AC LINE AC LINE24

26 27 28 29 30

DC + DC -

FLOW

COMP

SEE USER MANUAL

COM RLY3 NO NC COM RLY4 NO

POWER

4.2 Typical Rate/Total Wiring:

FLOW SENSOR

STRIP CHART

RECORDER

(+) V Signal

Common

100 Ohm DIN RTD

123456

Remote Counter

Alarm Relay 1

Alarm Relay 2

115 VAC

DC OUTPUT

PULSE IN 1

PULSE IN 2

COMMON

---------

RTD EXCIT + Thermistor

RTD SENS + Iin + Temp RTD SENS - Iin + Press/Dens

8 9

CNTR IN 1

CNTR IN 2

CNTR IN 3

COMMON 13 PULSE OUTPUT + 14

PULSE OUTPUT 15

ANALOG OUTPUT + 16

ANALOG OUTPUT -

17 NC

{ {

18 COM 19 20 21 22

RLY1 NO NC COM

RLY2 NO

AC LINE AC LINE24

Vin + Press/Dens

25 NC 26 27 28 29 30

DC + DC -

FLOW

COMP

SEE USER MANUAL

COM RLY3 NO NC COM RLY4 NO

POWER

4.3 Typical Thermistor Wiring:

Thermistor YSI55016

4.4 Typical Pressure/Temperature Transmitter Wiring:

–

2-Wire

Pressure Transmitter

2-Wire

Temp. Transmitter

–

COMMON

---------

RTD EXCIT +

RTD SENS

RTD SENS -

DC OUTPUT

PULSE IN 1

PULSE IN 2

COMMON

---------

RTD EXCIT + Thermistor

RTD SENS + Iin + Temp

RTD SENS - Iin + Press/Dens

Vin + Press/Dens Thermistor

Iin + Temp

Iin + Press/Dens

Vin + Press/Dens

COMP

FLOW

COMP

SP3850 Flow Computer

4.4 Wiring In Hazardous Areas:

Examples using MLT787S+ Barrier (MTL4755ac for RTD)

Temperature Input (4-20mA Transmitter)

Temperature Input (RTD)

Temperature Input (4-20mA Transmitter)

Hazardous Area Safe Area

4-20mA Temp.

Transmitter

–

4-20

4 3

28V

Diode

Temperature Input (RTD)

Hazardous Area Safe Area

1 2

24V Out

Common

4-20mA In

Pressure Input (4-20mA Transmitter)

3-Wire RTD

1 2 3 4 5 6

Pressure Input (4-20mA Transmitter)

Hazardous Area Safe Area

4-20mA Press.

Transmitter

–

4-20

4 3

28V

Diode

7 8 9 10 11 12 13 14 15 16 17

1 2

Common

4 5

RTD Excite (+)

RTD Sense (+)

RTD Sense (–)

24V Out

Common

4-20mA In

SP3850 Flow Computer

5. UNIT OPERATION

5.1 Front Panel Operation Concept for Run Mode

The SP3850 is fully programmable through the front panel. Please review the following usage summary before attempting to use the instrument.

PRE 1

RATE

TOTAL

START

GRAND6SCROLL7PRE 28F2

STOP

–

CLEAR•MENU

HELP

ENTER

How To Use On-Line Help

How To Use Function Keys

How To Clear The Totalizer

How To Clear The Grand Total

How To Enter Presets

HELP

On-line help is provided to assist the operator in using this product. The help is available during RUN and SETUP modes simply by pressing the HELP key. The HELP key is used to enter decimals when entering numeric values.

FUNCTION KEYS

In the RUN mode, several keys have a special, direct access feature, to display an item of interest (i.e. RATE, TOTAL, PRE 1, etc.). Press the key to view your choice. Press the SCROLL key to return to scrolling display. The F1, F2 & F3 keys allow the operator to view more than one piece of information. Pressing these keys additional times will display additional information.

CLEARING TOTALIZER

To clear the total, you must quickly press the TOTAL Function Key 3 times. You will be asked to verify this action. The operator will be prompted to enter password if the unit is locked. NOTE: In the Batcher Mode, simply press the CLEAR key to reset the total (the batcher

must be stopped or finished batching). It is not necessary to press the TOTAL Function Key first.

CLEARING GRAND TOTAL

To clear the grand total, you must quickly press the GRAND Function Key 3 times. You will be asked to verify this action. The supervisor will be prompted to enter the supervisor password if the unit is locked.

PRESET KEYS

In the RUN mode, PRE 1 & PRE 2 keys are used to view and/or change the preset setpoints. To view the Presets, simply press the desired Preset key. Rapidly press the Preset keys 3 times, then press the Clear key for direct editing of the preset setpoints.

How To Select The Fluid

How To Create a Scroll List

How To Use The Print Key

How To Use Special Batching Keys

How To Use The Menu Key

SELECTING THE FLUID

While holding F1 key depressed, press ENTER. Use the ∆ ∇ keys to scroll through the available fluids. At desired fluid press ENTER to select fluid.

SCROLL

Rapidly press the Scroll key three times to setup a display list. Press the CLEAR key to remove old scroll list. Press the function key for the item you wish to add Use the ∆ ∇ keys to assign the line.

The PRINT key is used to print on demand. When the PRINT key is pressed, a user defined list of data (TOTAL, RATE, PRE 1, etc.) is sent to the RS-232 port. A timed message of "PRINTING" will be displayed to acknowledge the print request.

SPECIAL BATCHING KEYS

The START and STOP keys are used only when batching to start and stop batches. The CLEAR key will clear the total without first pressing the TOTAL key (unit must be stopped). All other keys work the same in both Rate/Total mode and Batch mode. The Start and Stop keys operation are set by the control input settings. The Start options are: START or RESET/START. The Stop options are: STOP or STOP/RESET.

MENU KEY

The MENU key is used to enter the Setup and Test modes. Press the MENU key to enter the Setup and Test modes. (See section 6 for Setup mode, section 8 for Test mode). The MENU key is also used as "escape" in Setup and Test Programming. Pressing the MENU key while programming in the Sub-Menu groups will backup the display to that Sub-Menu group heading. Pressing the MENU key while viewing the Sub-Menu groups will backup the display to the Top Level Menu.

How To Acknowledge Alarms

ACKNOWLEDGING ALARMS

Most alarm messages are self-clearing. Press the ENTER key to acknowledge and clear alarms. NOTE: Some keys and functions are password protected. Enter the password to gain

access. The passwords are factory set as follows:

Operator = 0 Supervisor = 2000

SP3850 Flow Computer

General Operation

Rate/Total Operation

Password Protection

(Rate/Total mode)

5.2 General Operation

The unit can display: Rate, Total, Grand Total, Temperature, Pressure, Density, Presets and Time of Day. In addition, input frequencies, computed K-factors and viscosities can be observed. The Temperature and Pressure or Density can be displayed even if you are using the Volumetric Flow Equation (a Temperature or Density sensor must be installed). The unit can perform Mass or Corrected Volume equations using a temperature, pressure or density sensor (these equations can be computed without Temp/Dens/Press sensors by using user defined default values). The unit can be programmed to perform Ratemeter/ Totalizer or Batching functions (see section 6.4.2, INSTRUMENT TYPE Submenu).

5.3 Ratemeter/Totalizer Operation

The Ratemeter/Totalizer mode is used primarily to monitor flowrate and accumulated total. The relays can be used to trigger flow, total, temperature pressure or density alarms.

5.3.1 Password Protection for Rate/Total mode

After an Operator and/or Supervisor Password is entered in the setup mode (see section 6.4.23, ADMINISTRATIVE SETUP submenu), the unit will be locked. The unit will prompt the user for the password when trying to perform the following functions:

Clear Total Clear Grand Total Enter Menu Edit Preset 1 (PRE 1 Key) Edit Preset 2 (PRE 2 Key)

Relay Operation

(Rate/Total mode)

Pulse Output

(Rate/Total mode)

The Supervisor password should be reserved for supervisors. The Supervisor password will allow access to restricted areas of the Setup and Test menus.

5.3.2 Relay Operation in Rate/Total mode

Up to four relays are available (two standard) for alarm outputs. The relays can be assigned to trip according to rate, total, temperature, pressure, density readings or general system alarms. The relays can be programmed for low or high alarms. Preset 1 (RLY1) and Preset 2 (RLY2) are easily accessible by pressing the PRE 1 or PRE 2 key on the front panel. Preset 3 and Preset 4 are accessible only through the setup menu.

5.3.3 Pulse Output in Rate/Total mode

The isolated pulse output (open collector) is menu assignable to Volume Total and either the Corrected Volume Total or Mass Total. The pulse output duration can be set for 10mS (50 Hz max) or 100mS (5 Hz max). A pulse output scale factor (pulse value) can be set to scale the pulse output. The pulse output is ideal for connecting to remote totalizers or other devices such as a PLC. See section 1.3 for electrical specifications.

Analog Output

(Rate/Total mode)

5.3.4 Analog Output in Rate/Total mode

The analog output is menu assignable to correspond to the Volume Rate, Corrected Volume Rate or Mass Rate, Temperature, Pressure, Density, Volume Total or Corrected Volume Total or Mass Total. The analog output is ideal for "trend" tracking using strip chart recorders or other devices.

SP3850 Flow Computer

RS-232 Serial Port

(Rate/Total mode)

5.3.5 RS-232 Serial Port Operation in Rate/Total mode

The RS-232 serial port can be used for programming (using the Setup Disk) or for communicating to printers and computers in the Operating Mode (Run Mode).

PC Communications:

The Setup Disk also allows the user to query the unit for operating status such as Flow Rate, Flow Total, Temperature, Pressure, Density, Presets, etc.

Operation of RS-232 Serial Port with Printers:

Transaction Printing For transaction printing, the user defines the items to be included in the printed document (see section 6.3.20 SET DATA OUTPUT, Select_list). The transaction document can be initiated by pressing the PRINT key or by a remote contact closure.

Data Logging In data logging, the user defines the items to be included in each data log (see section 6.3.20 SET PRINTER OUTPUT, Select_list). The user can also select when (time of day) or how often (print interval) the data log is to be made (see section 6.3.19 SET PRINTER OUTPUT, Configure). Data logs can also be initiated using the print key or control input.

RS-485 Serial Port

(Rate/Total mode)

System Setup and Maintenance Report The system setup and maintenance report lists all of the instrument setup parameters and usage for the current instrument configuration. The audit trail information and a status report is also printed. This report is initiated in the Test menu (see section 8.2.3 PRINT SYSTEM SETUP).

5.3.6 RS-485 Serial Port (optional)

RS-485 Port Description:

The optional RS-485 card utilizes Modbus RTU protocol to access a variety of process parameters and totalizers. The Relays can be controlled via Modbus. In addition, action routines can be executed. For further information, contact factory and request RS-485 Protocol manual.

Operation of Serial Communication Port with PC

The flow computer's RS-485 channel supports a number of Modbus RTU commands. Modbus RTU drivers are available for a variety of Man Machine Interface software for IBM compatible PC's.

The user reads and writes information from/to the RS-485 using the Modbus RTU commands. The SP3850 then responds to these information and command requests.

Process variables and totalizers are read in register pairs in floating point format. Time and date are read as a series of integer register values. Alarms are individually read as coils. Action routines are initiated by writing to coils.

SP3850 Flow Computer

5.4 Batcher Operation

The Batcher mode is used primarily to control batches. The main difference between the Batch mode and Rate/Total mode is the relay operation. The Batch mode allows the operator to "START" the unit via the front panel or remote input. Once started, the relays (RLY1 & RLY2) will energize and send power to a flow control device (i.e. solenoid valve or pump). The flow sensor will send a signal to the unit and total accumulation will begin. When the Prewarn value (PRE 2) is reached, Relay 2 will drop out (this is ideal for flow slow down). When the Batch amount (PRE 1) is reached, Relay 1 will drop out and the Batch is complete.

Several messages will be displayed during normal batch operation (i.e. Batch Fill, Batch Stopped). The keypad is disabled for the duration of these timed messages (approx. 2 sec).

Batcher Configuration

5.4.1 Batcher Configuration.

When the unit is programmed for batch mode, several batch operation choices are available. These choices include: Up or Down Counting, Maximum Batch Preset, Batch Overrun Compensation, Auto Batch Restart, Time Delay, Flow Signal Timeout, Maximum Drain Time, Slow Start Quantity, Start or Reset/Start, and Stop or Stop/Reset.

Batch Count Mode

The Batch Count Mode allows the user to choose whether the unit will batch up to a preset value or batch down from a preset value to zero.

Maximum Batch Preset

The Maximum Batch Preset allows the user to program the Maximum Batch value allowed to be entered by the operator. If an operator should try to program a batch higher then this value, the unit will not allow the value to be entered and will prompt the user with an error message saying that the Maximum Batch Preset has been exceeded.

Batch Overrun

The Batch Overrun is used for batch applications that have slow responding valves and a consistent batching flowrate. When the Batch Overrun is set, the unit will compensate for batch overruns by computing an averaged overrun value from the last four batches. This average is used to internally adjust the batch setpoint to minimize overrun.

Auto Batch Restart

The Auto Batch Restart function allows the user to set an amount of time to automatically restart a batch after the completion of a batch. This time can be set from 1 to 99 seconds. Any flow during this delay can be ignored and not accumulated in the Batch Total by choosing "YES" in the "NO TOT FOR BATCH DLY" menu prompt.

Time Delay

The Time Delay for Auto Batch Restart functions as follows: When a batch is completed, the next batch will automatically start after the amount of time entered here.

Flow Signal Timeout

The Flow Signal Timeout allows the user to enter a timeout of 0 to 99 seconds. If a batch is “Filling” and zero flow persists for more than the user entered time then the batch will be aborted. This prevents over flows due to faulty flow sensors and/or wiring.

Maximum Drain Time

The unit declares that a batch is “done” when the flow rate equals “0”. A flow rate may be present long after the Preset Relay de-energizes due to slow reacting valves or leaky valves. The Maximum Drain Time allows the user to enter an amount of time (0 to 99 seconds) to wait before declaring “Batch Done”. After the Preset Batch quantity is reached, the unit will declare “Batch Done” when the flow rate is “0” or the Maximum Drain Time has expired. The batch data will then be available for printing and datalogging.

SP3850 Flow Computer

Slow Start Quantity

The Slow Start Quantity is a function that allows an amount to be entered for a Slow Start up. This function requires two stage valve control. RLY 1 (slow flow) will energize for Slow Start and RLY 2 (fast flow) will energize after the Slow Start Quantity has been delivered. This helps reduce turbulence when filling an empty container.

START, RESET/START and STOP, STOP/RESET

When configuring the control inputs, Control Input1 can be set for START or RESET/START. When set for START, the unit will start batching when a signal is applied to Control Input1 or the front panel Start key is pressed. A separate Reset signal must be used to clear the previous batch total. When set for RESET/START, the unit will automatically reset then start when a signal is applied to Control Input1 or the front panel Start key is pressed (provided that the pervious batch was completed). If a previous batch was stopped during a batch cycle, the unit will Start from where it was stopped. Control Input 2 can be set for STOP or STOP/RESET. When set for STOP, the unit will stop batching when a signal is applied to Control Input 2 or the front panel Stop key is pressed. A separate Reset signal must be used to clear the batch total. When set for STOP/RESET, a running batch will stop when a signal is applied to Control Input 2 or the front panel Stop key is pressed. If the unit is Stopped or after a completed batch, the unit will reset when a signal is applied to Control Input 2 or the front panel Stop key is pressed. NOTE: Applying a high logic level to Control Input 2 will inhibit all Start inputs

in either mode. The front Start/Stop keys can be disabled by choosing "YES" in the "INH START/STOP KEYS" menu prompt.

Password Protection

(Batch mode)

Relay Operation

(Batch mode)

5.4.2 Password Protection for Batcher Mode

After an Operator and/or Supervisor Password is defined in the setup mode (see section 6.4.23, ADMINISTRATIVE SETUP submenu), the unit will be locked when you return to the run mode. The unit will prompt the user for the password when trying to perform the following functions:

Clear Grand Total Enter Menu

The Supervisor password should be reserved for supervisors. The Supervisor password will allow access to restricted areas of the Setup and Test menus.

The passwords are factory set as follows:

Operator = 0 Supervisor = 2000

5.4.3 Relay Operation in Batcher mode

Up to four relays are available (two standard) for alarm outputs. Preset 1 (RLY1) is reserved for batch amount, Preset 2 (RLY2) is reserved for prewarn. Preset 1 (RLY1) and Preset 2 (RLY2) are easily accessible by pressing the PRE 1 or PRE 2 key on the front panel. Preset 3 and Preset 4 are accessible only through the setup menu. Relays 3 and 4 can be assigned to trip according to rate, total, temperature, pressure, density, overrun or alarm. When rate, temperature, pressure or density is selected the relays can be programmed for low or high alarms.

Pulse Output

(Batch mode)

Analog Output

(Batch mode)

5.4.4 Pulse Output in Batcher mode

The isolated pulse output (open collector) is menu assignable to Volume Total, and either Corrected Volume Total or Mass Total. The pulse output duration can be set for 10mS (50 Hz max) or 100mS (5 Hz max). A pulse output scale factor (pulse value) can be set to scale the pulse output. The pulse output is ideal for connecting to remote totalizers or other devices such as a PLC. See section 1.3 for electrical specifications.

5.4.5 Analog Output in Batcher mode

The analog output is menu assignable to correspond to the Volume Rate, Corrected Volume Rate or Mass Rate, Temperature, Pressure, Density, and Total. The analog output is ideal for "trend" tracking using strip chart recorders or other devices.

SP3850 Flow Computer

RS-232 Serial Port

(Batch mode)

5.4.6 RS-232 Serial Port Operation in Batcher mode

The RS-232 serial port can be used for programming (using the Setup Disk) or for communicating to printers and computers in the Operating Mode (Run Mode).

PC Communications:

The Setup Disk also allows the user to query the unit for operating status such as Flow Rate, Flow Total, Temperature, Pressure, Density, Presets, etc.

Operation of RS-232 Serial Port with Printers:

Transaction Printing For transaction printing, the user defines the items to be included in the printed document (see section 6.4.22 SET DATALOG/PRINT, Select_list). The transaction document can be initiated by pressing the PRINT key, by a remote contact closure or print at end of batch.

Data Logging In data logging, the user defines the items to be included in each data log (see section 6.4.22 SET DATALOG/PRINT, Select_list). The user can also select when (time of day) or how often (print interval) the data log is to be made (see section see section 6.4.21 SET DATALOG/PRINT, Configure).

RS-485 Serial Port

(Batch mode)

5.4.7 RS-485 Serial Port (optional)

RS-485 Port Description:

The optional RS-485 card utilizes Modbus RTU protocol to access a variety of process parameters and totalizers. Batches/Relays can be controlled remotely via Modbus. In addition, action routines can be executed. For further information, contact factory and request RS-485 Protocol manual.

Operation of Serial Communication Port with PC

The flow computer's RS-485 channel supports a number of Modbus RTU commands. Modbus RTU drivers are available for a variety of Man Machine Interface software for IBM compatible PC's.

The user reads and writes information from/to the RS-485 using the Modbus RTU commands. The SP3850 then responds to these information and command requests.

SP3850 Flow Computer

6. PROGRAMMING

6.1 Front Panel Operation Concept for Program Mode

The SP3850 is fully programmable through the front panel. Please review the following usage summary before attempting to use the instrument.

START

STOP

TOTAL

GRAND6SCROLL7PRE 2

RATE

PRE 1

–

CLEAR•MENU

HELP

ENTER

How To Make Mode Changes

How To Navigate Through Sub-Menu Groups

How To Select Program Choices

Setup Mode:

MODE CHANGES

Pressing the MENU key will offer selections of RUN, SETUP, TEST. RUN is the normal operating mode for the instrument. SETUP offers various sub-menus used for instrument setup. TEST offers various sub-menus for Test, Calibration and System Start-up.

Submenu GROUP NAVIGATION

Use the UP and DOWN arrow keys to navigate up and down through the Sub-Menu groups when in the SETUP or TEST mode. Press the ENTER key to enter a desired setup or test Sub-Menu group.

SELECTION OF ITEM

During setup, the unit will often offer multiple choices for a given topic. The topic prompt appears on the top line of the display. The choices are shown on the lower line of the display.

To select an item, press the key beneath the desired choice. The selected choice will blink. Press the ENTER key to accept the selected choice.

How To Enter Numeric Values

How To Enter Text Characters

NUMERIC ENTRY

The keys labeled "0 - 9", "–", ".", CLEAR and ENTER are used to enter numerical values. A leading 0 will assume that you intend to enter a minus "–" sign. Press the CLEAR key to clear the existing value and to enable editing.

TEXT CHARACTER ENTRY

Some setup items (i.e. Descriptors, Units Label) require the user to enter text characters. Press CLEAR to enable editing. The UP and DOWN arrow keys are used to scroll through the available character sets for each individual character. Press the ENTER key to accept the character and advance to the next character.

SP3850 Flow Computer

6.2 Setup Menus

Menus Display Notes

6.2.1 Top Level Setup Menu

6.2.2 Submenu Groups

START

SELECT OPERATE STATE Run Setup Test

ENTER

INSTRUMENT TYPE

STOP

START

SELECT FLOW EQUATION

STOP

START

SETUP INDICATORS

STOP

START

SETUP FLOW INPUT

STOP

START

SETUP AUX1 INPUT

STOP

START

Select Setup to enter the instrument setup routine.

Refer to Page 23 for Details.

Refer to Pages 24 for Details.

Refer to Page 24-26 for Details.

Refer to Page 27-28 for Details.

Refer to Pages 29 for Details.

SETUP AUX2 INPUT

STOP

START

SET FLUID PROPERTIES

STOP

START

SETUP PULSE OUTPUT

STOP

START

SETUP ANALOG OUTPUT

STOP

START

SETUP RELAYS

STOP

START

SETUP CONTROL INPUTS

STOP

START

Refer to Pages 30 for Details.

Refer to Page 31 for Details.

Refer to Pages 32 for Details.

Refer to Page 32 for Details.

Refer to Page 33-34 for Details.

Refer to Page 35 for Details.

STOP

SETUP REALTIME CLOCK

STOP

START

SERIAL USAGE

STOP

START

SETUP DATALOG/PRINT

STOP

START

ADMINISTRATIVE SETUP

STOP

START

SETUP NETWORK CARD

Refer to Page 36 for Details.

Refer to Pages 37-38 for Details.

Refer to Pages 38-39 for Details.

Refer to Page 39 for Details.

Refer to Page 40 for Details.*

* Optional Menu only appears if option is

installed

6.3.1

INSTRUMENT TYPE

6.3 Setup Sub-Menus

INSTRUMENT TYPE

ENTER

SP3850 Flow Computer

NotesSub-menus

Press ENTER to enter Instrument Type submenus.

Rate/Tot

Batch

INSTRUMENT TYPE Rate/Tot Batch

STOP

START

ENTER

Advance To

SELECT FLOW EQUATION

INSTRUMENT TYPE

ENTER

INSTRUMENT TYPE Rate/Tot Batch

STOP

START

ENTER

BATCH COUNT MODE Up Down

STOP

START

ENTER

MAXIMUM BATCH PRESET

1000.0 gal

STOP

START

ENTER

BATCH OVERRUN COMP Off On

STOP

START

ENTER

AUTO BATCH RESTART Off On

STOP

START

ENTER

TIME DELAY (1-99sec) 10

ENTER

Press ENTER when Rate/Total is flashing to configure the instrument as a Ratemeter/ Totalizer.

If Rate/Tot selected, advance to Select Flow Equation.

Press ENTER to enter Instrument Type submenus.

Press ENTER when Batch is flashing to configure the instrument as a Batcher.

Select UP to Reset to 0 and count up to preset. Select DOWN to reset to Preset and count down to 0.

Enter the maximum allowable Batch Preset. The operator will not be able to enter a batch preset larger than this value.

Select ON to set the unit to operate using a Batch Overrun Compensation routine. Select OFF to inhibit Batch Overrun Compensation routine. (See Section 5.4)

Select On to enable the Auto Batch Restart. This will automatically restart the unit at the end of each batch run. Select Off if this is not desirable.

Enter Time Delay for Auto Batch Restart. When a batch is completed, the next batch will start after the amount of time entered here.

FLOW SIGNAL TIMEOUT 10

ENTER

MAXIMUM DRAIN TIME 10

ENTER

SLOW START QUANTITY 10

ENTER

NO TOT FOR BATCH DLY No Yes

ENTER

INH START/STOP KEYS No Yes

ENTER

Advance To

SELECT FLOW EQUATION

Enter a timeout of 0 to 99 seconds. If a batch is “Filling” and zero flow persists for more than this time, the batch will be aborted.

Enter time (0-99 sec.) for Max. Drain Time. After batch quantity is reached, “Batch Done” is declared when the flow rate is “0” or the Maximum Drain Time has expired.

Enter a quantity for a Slow Start up. RLY 2 (slow flow) will energize for Slow Start and RLY 1 (fast flow) will energize after the Slow Start Quantity has been delivered.

Select "Yes" to inhibit totalization during the auto batch restart delay.

Select "Yes" to inhibit the Start and Stop keys on the front panel.

SP3850 Flow Computer

Sub-menus

6.3.2 SELECT FLOW EQUATION

6.3.3 SETUP INDICATORS

(Total)

Display

SELECT FLOW EQUATION

ENTER

SELECT FLUID MEDIA Liquid Gas

ENTER

SELECT FLOW EQUATION Volume Mass Cor/Vol

ENTER

Advance To

SETUP INDICATORS

(Total)

SETUP INDICATORS

ENTER

Notes

Press ENTER to enter Select Flow Equation submenus.

Press ENTER when desired fluid media is flashing.

Press ENTER when desired flow equation is flashing.

Press ENTER to begin setup of the Indicators

6.3.4 SETUP INDICATORS

(Density)

SETUP INDICATORS Tot Dns Rte Tmp Pres

ENTER

TOTAL DESCRIPTOR

TOTAL

ENTER

TOTAL VOLUME UNITS gal

ENTER

TOT DEC PLACES (0-3)

ENTER

Advance To

SETUP INDICATORS

(Density)

SETUP INDICATORS Tot Dns Rte Tmp Pres

ENTER

Press ENTER when Total is flashing to configure the Totalizer Indicators

Enter the desired Total Descriptor

Enter the desired Volume Units Label for the Totalizer.

Select the desired Total Decimal Place.

0-3 decimal places allowed.

Press ENTER when Dens is flashing to configure the Density Indicators.

DENSITY DESCRIPTOR

DENS

ENTER

DENSITY MASS UNITS

lbs

ENTER

DENS DEC PLACES(0-6)

ENTER

DENSITY DEFAULT

1 lbs/g

ENTER

Advance To

SETUP INDICATORS

(Rate)

Enter the desired Density Descriptor.

Enter the desired Mass Units Label for Density.

Select the desired Density Decimal Place.

0-6 decimal places allowed.

Enter the default density setting.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.5

SETUP INDICATORS

(Rate)

SETUP INDICATORS Tot Dns Rte Tmp Pres

ENTER

RATE TIME BASE Sec Min Hour Day

ENTER

RATE DESCRIPTOR

RATE

ENTER

RATE DEC PLACES(0-3)

ENTER

RATE AVG FILTER

ENTER

Press ENTER when Rate is flashing to configure the Ratemeter Indicators

Select the desired Rate Time Base.

Enter the desired Descriptor for the Ratemeter.

Select the desired Rate Decimal Place.

0-3 decimal places allowed.

Enter desired Rate Averaging Filter.

6.3.6

SETUP INDICATORS

(Temperature)

QUICK UPDATE %

ENTER

Advance To

SETUP INDICATORS

(Temperature)

SETUP INDICATORS Tot Dns Rte Tmp Pres

ENTER

TEMP DESCRIPTOR

TEMP

ENTER

TEMPERATURE SCALE Deg_C Deg_F

ENTER

Enter desired Percent of Change for Quick

Update. If the current flowrate deviates by an amount greater than the percentage value entered, the Rate Averaging is restarted with new value.

Press ENTER when Temp is flashing to configure the Temperature Indicators.

Enter the desired Temperature Descriptor.

Enter the desired Temperature Scale.

TEMP DEC PLACES(0-3)

ENTER

TEMPERATURE DEFAULT

60 F

ENTER

Advance To

SETUP INDICATORS

(Pressure)

Select the desired Temperature Decimal

Place.

0-3 decimal places allowed.

Enter the default temperature

Sub-menus Display Notes

SP3850 Flow Computer

6.3.7 SETUP INDICATORS

(Pressure)

SETUP INDICATORS Tot Dns Rte Tmp Pres

ENTER

PRES UNITS

Absolute Gauge

ENTER

PRESSURE DESCRIPTOR

PRESS

ENTER

PRESSURE UNITS psia

ENTER

PRES DEC PLACES(0-3)

ENTER

Press ENTER when Pres is flashing to configure the Pressure Indicators.

Enter the Pressure Units Referenced.

Enter the desired Pressure Descriptor using the up/down arrow keys.

Enter the desired Pressure Units using the up/ down arrow keys.

Select the desired Pressure Decimal Place.

0-3 decimal places allowed.

PRESSURE DEFAULT

50.000 psia

ENTER

BAROMETRIC PRESSURE

14.696 psia

ENTER

Advance To

SETUP FLOW INPUT

Enter the default pressure.

Enter barometric pressure.

SP3850 Flow Computer

Submenus Display Notes

6.3.8

SETUP FLOW INPUT

NOTE:

ChA = Single Pulse A=B = Pulse Security Qx1 = Quadrature U/D = Up/Down Control

Line

NOTE: AvgK = Average

K-Factor

LinTbl = Linearization

Table

UVC = Universal

Viscosity Curve

StRo = Strouhal

Roshko Curve

SETUP FLOW INPUT

ENTER

EXCITATION VOLTAGE 5v 12v 24v

ENTER

PULSE INPUT TYPE ChA A=B Qx1 U/D

ENTER

PULSE TRIGGER LEVEL 10mV 100mV 2.5V

ENTER

LOW PASS FILTER 40Hz 3KHz 20KHz

ENTER

INPUT TERMINATION Pullup Pulldown None

ENTER

MAX WINDOW (1-99)

1 sec

ENTER

K_FACTOR TYPE AvgK LinTbl UVC StRo

ENTER

AVERAGE KA-FACTOR

####### P/gal

AVERAGE KB-FACTOR

####### P/gal

Press ENTER to begin setup of Flow Input.

Select the desired Excitation Voltage.

Enter the desired Pulse type. See side note.

Select the desired Input Pulse Trigger Level.

Select the desired Low Pass Filter. (Max. Count Speed).

Select the proper input termination.

Enter the desired Maximum Sample Window Time (1-99 sec).

Enter the desired K-Factor Type. See side note.

If Avg selected, Enter the desired Average KFactor (KA for channel A).

Enter the desired Average K-Factor (KB for channel B).

CHANGE TABLE A

Fre01:######## Hz

Through

LINEAR TABLE KA

40 Points

KA--01:####### P/gal

CHANGE TABLE B

LINEAR TABLE KB Fre01:######## Hz

LINEAR TABLE KB

Through

40 Points

KB--01:####### P/gal

LINEAR TABLE KA Fre01:######## Hz/ck

LINEAR TABLE KA

Through

40 Points

KA--01:####### P/gal

LINEAR TABLE KB Fre01:######## Hz/ck

Yes N0

LINEAR TABLE KA

ENTER

Yes N0

ENTER

If LinTbl selected, Select YES to change table Enter the desired frequency/ K-Factor pair (in ascending order) for each point in the Linearization Table. (channel A) NOTE: Enter 0 for Fre value of any point (other

than Fre01) to exit the routine and use the values entered up to that point.

Enter the desired frequency/ K-Factor pair (in

ascending order) for each point in the Linearization Table. (channel B)

NOTE: Enter 0 for Fre value of any point (other

than Fre01) to exit the routine and use the values entered up to that point.

If UVC selected, Select YES to change table Enter the desired Hz/ck/ K-Factor pair (in ascending order) for each point in the Linearization Table. (channel A) NOTE: Enter 0 for Hz/ckvalue of any point

(other than Hz/ck01) to exit the routine and use the values entered up to that

point. Enter the desired Hz/ck/ K-Factor pair (in ascending order) for each point in the Linearization Table. (channel B) NOTE: Enter 0 for Hz/ck value of any point

(other than Hz/ck01) to exit the routine

and use the values entered up to that

point.

LINEAR TABLE KB

Through

KB--01:####### P/gal

40 Points

ENTER

Continued On Next Page

Sub-menus Display Notes

SP3850 Flow Computer

6.3.8 SETUP FLOW INPUT (continued)

LINEAR TABLE KA RoA01:########

ENTER

LINEAR TABLE KA

Through

40 Points

StA01:#######

ENTER

LINEAR TABLE KB RoB01:########

ENTER

LINEAR TABLE KB

Through

40 Points

StB01:#######

ENTER

LOW FLOW RATE ALARM

####### gal/s

ENTER

HIGH FLOW RATE ALARM

ENTER

METER EXPAN [xe - 6]

ENTER

####### gal/s

0 ppm/f

If StRo selected, Enter the desired St/ Ro pair (in ascending order) for each point in the Linearization Table. (channel A) NOTE: Enter 0 for Ro value of any point (other

than RoA01) to exit the routine and use the values entered up to that point.

Enter the desired St/ Ro pair (in ascending order) for each point in the Linearization Table. (channel B) NOTE: Enter 0 for Ro value of any point (other

than RoB01) to exit the routine and use the values entered up to that point.

Enter the desired volumetric Low Rate Alarm. This will trigger an alarm message if alarm conditions occur. The relays are not affected.

Enter the desired volumetric High Rate Alarm. This will trigger an alarm message if alarm conditions occur. The relays are not affected.

If StRo selected, Enter the expansion coefficient for the meter housing.

CALIBRATION TEMPERATURE

70 F

ENTER

H2O DENSITY AT 4 DEG C

8.34519 lbs/g

ENTER

Advance To

SETUP AUX1 INPUT

If StRo selected, Enter the calibration temperature.

If UVC or StRo selected, Enter the density of water at 4° C.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.9 SETUP AUX1 INPUT

SETUP AUX1 INPUT

ENTER

AUX1 INPUT TYPE None Temp

ENTER

AUX1 SIGNAL TYPE Therm Current RTD

ENTER

INPUT SIGNAL RANGE 4-20mA 0-20mA

ENTER

AUX1 LOW SCALE ###### F

ENTER

Press ENTER to begin setup of the Auxiliary 1 Input.

Select Temperature to set the Auxiliary 1 Input for Temperature inputs.

Choose Temperature Signal Type. (If RTD selected, AUX2 will not be available for Density or Pressure)

If Current selected, Choose desired Current Range. Skip if Thermistor or RTD.

Enter the low temperature scale corresponding to the low temperature signal. Skip if Thermistor or RTD.

AUX1 FULL SCALE ###### F

ENTER

OFFSET TEMPERATURE ###### F

ENTER

LOW TEMP TOT LIMIT ###### F

ENTER

HIGH TEMP TOT LIMIT ###### F

ENTER

DENS EXTRACT METHOD Therm_Coef API-2540

ENTER

Advance To

SETUP AUX2 INPUT

Enter the high temperature scale corresponding to the high temperature signal. Skip if Thermistor or RTD.

Enter the offset temperature.

Enter the Lowest temperature for which totalization should occur.

Enter the Highest temperature for which totalization should occur.

Enter the Density Extract Method to be used.*

* Only appears if RTD selected.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.10 SETUP AUX 2 INPUT

NOTE:

When Density (Dens) is selected, The menu prompts will be very similar to thePressure prompts. The menus will prompt the user for density values and density units.

SETUP AUX2 INPUT

ENTER

AUX 2 INPUT TYPE None Dens Press

ENTER

AUX 2 SIGNAL TYPE Voltage Current

ENTER

CURRENT RANGE 4-20mA 0-20mA

ENTER

AUX LOW SCALE ###### PSIA

ENTER

Press ENTER to begin setup of the Auxiliary Input 2.

Select Pressure to set the Auxiliary Input 2 for Pressure inputs.

Choose Pressure Signal Type.

If Current selected, Choose desired Current Range.

Enter the low pressure scale corresponding to the low pressure signal.

AUX FULL SCALE ###### PSIA

ENTER

AUX LOW ALARM ###### PSIA

ENTER

AUX HIGH ALARM ###### PSIA

ENTER

DENS EXTRACT METHOD Therm_Coef API_2540

ENTER

Advance To

SET FLUID PROPERTIES

Enter the high pressure scale corresponding to the high pressure signal.

Enter the Low setpoint for the Pressure Alarm.

Enter the High setpoint for the Pressure Alarm.

If None or Press selected, Choose the Density Extraction method to be used.*

* If not Density transmitter and not RTD.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.11 SET FLUID PROPERTIES

NOTE:

Fluid Selections: 0 Water 1 Argon 2 Carbon Dioxide 3 Nitrogen 4 Oxygen 5 MIL-C-7024D 6 Propane 7 50/50 Ethylene 8 Air 9 Diesel

SET FLUID PROPERTIES

ENTER

FLUID NUMBER (0-9)

ENTER

FLUID NAME Generic #0

ENTER

REF. DENSITY ###### lbs/g

ENTER

REF. TEMPERATURE ###### F

ENTER

EXPAN. FACTOR [xe-6]

########

ENTER

Press ENTER at this prompt to Set Fluid Properties.

Up to 10 Fluid types may be stored in the unit. Select the number of the desired fluid to edit.

See side note for available fluids.

Shows name and number of fluid selected. Enter the desired name using the up/down arrow keys.

Enter the Reference Density. This is used in the calculation of density when you have a temp transmitter and used for corrected flow calculation if you have a density transmitter.

Enter the Reference Temperature.

Enter the proper Fluid Expansion Factor. (If Temp Compensated for Mass or Corrected Volume) See Section 7.3, Calculating the Fluid Expansion Factor.

VISCOSITY COEF. A

0.000

ENTER

VISCOSITY COEF. B

0.000

ENTER

REFERENCE PRESSURE

####### PSIA

ENTER

Z-FACTOR

#######

ENTER

Z-FACTOR FLOWING

#######

ENTER

Advance To

SETUP PULSE OUTPUT

Enter the Viscosity A Coefficient. See section

7.4, Computation of Viscosity Coef. A and B.

Enter the Viscosity B Coefficient. See section

7.4, Computation of Viscosity Coef. A and B.

Enter the Pressure of the fluid at reference conditions.

Enter the Z-Factor for a gas at reference conditions.

Enter the Z-Factor for a gas at flowing conditions (typically 1.0). For liquids, enter the liquid compressibility (typically 0)

Sub-menus Display Notes

SP3850 Flow Computer

6.3.12 SETUP PULSE OUTPUT

6.3.13 SETUP ANALOG OUTPUT

SETUP PULSE OUTPUT

ENTER

PULSE OUTPUT USAGE Off Vol CVol/Mass

ENTER

PULSE WIDTH 10mS 100mS

ENTER

PULSE VALUE ####### gal/P

ENTER

Advance To

SETUP ANALOG OUTPUT

ENTER

Press ENTER at this prompt to setup the Pulse Output.

Select the desired Pulse Output Usage.

Select the desired Pulse Width for the Pulse Output.

Enter the desired Pulse Value for the Pulse Output (Units per Pulse).

Press ENTER when Analog is flashing to setup the Analog Output.

ANALOG OUTPUT USAGE Rte Tot Tmp Den Pres

ENTER

ANALOG OUT FLOW TYPE Vol CVol/Mass

ENTER

ANALOG OUTPUT RANGE 4-20mA 0-20mA

ENTER

LS ANALOG OUTPUT

####### gal/m

ENTER

FS ANALOG OUT 20mA

####### gal/m

ENTER

ANALOG OUT DAMPING

0.0

ENTER

Select the desired Analog Output Usage.

Only if Rate selected & Flow EQ. = Mass, Cor/Vol Select the desired Analog Output Flow.

Select the desired current range for the Analog Output.

Enter desired Analog Output Low Scale Value. NOTE: Units label will correspond with output

usage type selected.

Enter desired Analog Output Full Scale Value.

Enter the desired Analog Output Damping Constant. Increase value to slow response time and eliminate "bounce".

Advance To

SETUP RELAYS

Sub-menus Display Notes

SP3850 Flow Computer

6.3.14 SETUP RELAYS (Relay 1 & Relay 2)

NOTE:

In Batch mode, Relay 1 is reserved for Preset, Relay 2 is reserved for Prewarn.

SETUP RELAYS

Rly1

Rly2 Rly3 Rly4

ENTER

RELAY 1 USAGE RATE TOTAL NA

ENTER

RELAY 1 DELAY sec 0

ENTER

RELAY 1 MODE LO_ALARM HI_ALARM

ENTER

RELAY 1 DURATION

#####

ENTER

RELAY 1 SETPOINT

####### gal

ENTER

Select the desired Relay for setup. (Relays 3 & 4 Optional)

If Relay 1 or Relay 2 Selected, Select Rate, Total or NA.

If Rate selected, enter desired relay activation delay value.

Select the desired Relay Activation. Low: Relay activates when reading is below

setpoint.

High:Relay activates when reading is above

setpoint. If Total Selected, Enter desired Relay Duration.

Enter the desired Setpoint. The Setpoint can be edited in run mode using the PRE 1 key (PRE 2 key for Relay 2).

RELAY 1 HYSTERESIS

##### gal/m

ENTER

Advance To

SETUP RELAYS 3, 4

If Rate, selected, Enter desired Relay Hysteresis.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.14 (Continued) SETUP RELAYS (Relay 3 & Relay 4)

NOTE:

Settings for Relays 3 & 4 may be entered even if relays are not supplied. The settings will still trigger display alarms.

SETUP RELAYS Rly1 Rly2 Rly3 Rly4

ENTER

RELAY 3 USAGE Rate Tot Aux Ovr NA

RELAY 4 USAGE Rate Tot Aux Alrm NA

ENTER

ASSIGN AUX CHANNEL AUX 1 AUX 2

ENTER

RELAY 3 DELAY sec 0

ENTER

RELAY 3 MODE LO_ALARM HI_ALARM

ENTER

RELAY 3 DURATION

#####

Select the desired Relay for setup. (Relays 3 & 4 Optional)

If Relay 3 Selected, Choose Rate, Total, Aux, Ovr or NA.

If Relay 4 Selected, Choose Rate, Total, Aux, Alrm or NA.

If Aux selected, enter desired auxilliary channel.

If Rate / Aux selected, enter desired relay activation delay value.

Select the desired Relay Activation for Rate/Aux. Low: Relay activates when reading is below

setpoint.

High:Relay activates when reading is above

setpoint. If Total Selected, Enter desired Relay Duration.

ENTER

RELAY 3 SETPOINT

Enter the desired Setpoint.

####### gal

ENTER

RELAY 3 HYSTERESIS

##### gal/m

ENTER

If Rate, selected, Enter desired Relay Hysteresis.

Advance To

SETUP CONTROL INPUTS

RELAY NOTES & CONSIDERATIONS

1. Relay activation is based on the computed readings not the displayed value. Therefore the display damping factor will not affect the relay response time. The RELAY DELAY feature allows the user to enter a time delay for relay activation. This feature is very useful in applications where short over/ under range conditions are not considered alarm conditions.

2. When INSTRUMENT TYPE is set to batcher, Relay 1 is reserved for PRESET and Relay 2 is reserved for PREWARN.

3. Setting the relays to NA (Not Assigned), will allow the relay activation to be controlled via the RS232 Serial and/or RS-485 Modbus ports.

4. Relay 3 and Relay 4 settings may be used to trigger display alarm conditions even if the relays are not supplied.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.15 SETUP CONTROL INPUTS

(RATE/TOTAL)

SETUP CONTROL INPUTS

ENTER

SETUP CONTROL INPUTS Input1 Input2 Input3

ENTER

CONTROL INPUT1 USAGE INHIBIT_TOTAL NA

CONTROL INPUT2 USAGE RESET_TOTAL NA

CONTROL INPUT3 USAGE Prn Ack KeyLk NA

ENTER

Advance To

SETUP REALTIME CLOCK

Press Enter to begin setup of the Control Inputs.

Select the desired Control Input for setup.

If Control Input 1 Selected, Select Inhibit Total or NA (Not Assigned).

If Control Input 2 Selected, Select Reset Total or NA (Not Assigned).

If Control Input 3 Selected, Select Prn (Print), Ack (acknowledge), KeyLk (Keylock) or NA (Not Assigned). ACK will acknowledge and clear alarms and warning messages. Note: Alarms may reassert themselves if alarm conditions are still present.

6.3.16 SETUP CONTROL INPUTS

(BATCH)

SETUP CONTROL INPUTS Input1 Input2 Input3

ENTER

CONTROL INPUT1 USAGE Inh Strt Rst/Strt NA

CONTROL INPUT2 USAGE Stop Stop/Rst NA

CONTROL INPUT3 USAGE Rst Prn KeyLk Ack NA

ENTER

Advance To

SETUP REALTIME CLOCK

Select the desired Control Input for setup.

If Control Input 1 Selected, Select Inhibit, Start,Reset/Start, NA (Not Assigned).

If Control Input 2 Selected, Select Stop, Stop/Reset, NA (Not Assigned).

Sub-menus Display Notes

SP3850 Flow Computer

6.3.17 SETUP REALTIME CLOCK

(Time)

SETUP REALTIME CLOCK

ENTER

SETUP REALTIME CLOCK Time Date

ENTER

CLOCK TYPE 24HR 12HR

ENTER

SELECT CLOCK AM/PM AM PM

ENTER

TIME OF DAY HH:MM:SS ##:##:##

ENTER

Press Enter to begin setup of the Realtime Clock.

Select Time to set the time.

Select 24Hr or 12Hr clock

If 12Hr Clock, Enter AM or PM

Enter time of day.

6.3.18 SETUP REALTIME CLOCK

(Date)

Advance To

SETUP REALTIME CLOCK

(Date)

SETUP REALTIME CLOCK Time Date

ENTER

DATE: MONTH,DAY,YEAR ##/##/####

ENTER

Advance To

SERIAL USAGE

Select Date to enter the date.

Enter the date. (Month, Day, Last two digits of Year)

Sub-menus Display Notes

SP3850 Flow Computer

6.3.19 SERIAL USAGE (RS-232/485)

SERIAL USAGE

ENTER

SERIAL HARDWARE RS232 RS485

ENTER

DEVICE ID ##

ENTER

BAUD RATE 300 600 1200 <more>

BAUD RATE 2400 4800 9600 19200

ENTER

PARITY None Odd Even

Press Enter to begin setup of the Serial Port.

Select Serial Hardware type for standard port. Select RS485 only on special order. (See SETUP NETWORK CARD for RS485 Modbus option)

Select the Device ID.

Select the desired Baud Rate.

(If <more> selected)

Select the desired Parity.

6.3.20 SERIAL USAGE (Modem Options)

ENTER

HANDSHAKING None Softwre Hardwre

ENTER

DEVICE LINE FEED <CR> <CR+LF>

ENTER

MODEM OPTIONS No Yes

ENTER

MODEM INIT MASTER No Yes

ENTER

MODEM AUTO ANSWER No Yes

ENTER

Set the Handshake.

Choose end of line termination. Only choose <CR> if your external device automatically assigns a line feed for every <CR> carriage return.

Select "Yes" if the serial port will be used to control a modem.

Select "Yes" to have the unit engage in a configuration conversation with the modem on power up .

If "YES" selected for Modem Init Master, choose the desired Modem Auto Answer mode.

CALL OUT DAY OF WEEK 1

ENTER

CALL OUT TIME ##:##:##

ENTER

Continued on Next Page

Enter the day of the week to perform Call Out transmission. (0 = daily, 1 - 7 = Mon - Sun)

Enter the time of day to perform Call Out transmission. (HH:MM:SS)

Sub-menus Display Notes

SP3850 Flow Computer

6.3.20 SERIAL USAGE (Modem Options) (continued)

6.3.21 SETUP DATALOG/PRINT

(Configure)

CALL ON ERROR/ALARM No Yes

ENTER

CALL OUT PHONE # 0

ENTER

NUMBER OF REDIALS 0

ENTER

HANGUP IF 2MIN INACT No Yes

ENTER

Advance To

SETUP DATALOG/PRINT

ENTER

Select "Yes" to have the unit perform a Call Out transmission upon error/alarm condition.

Call Out Phone Number to be dialed for "Call Out Time" or "Print On Error/Alarm". (Up to 20 digits with "." used to pause between digits)

Enter the number of redials to be performed on call out time if busy or no answer (error/ alarm tries until connected).

Select "Yes" to perform hangup if there is inactivity for more than 2 minutes.

Press Enter to setup the Datalog/Print information.

SETUP DATALOG/PRINT Config Select_list

ENTER

OUTPUT FORMAT Printer Term Dbase

ENTER

PAGE LENGTH [99 max] 99

ENTER

TOP MARGIN [99 max] 3

ENTER

DATALOG ONLY No Yes

ENTER

PRINT TIME HH:MM:SS 00:00:00

ENTER

Select Config to configure the Datalog/Print information.

Select the type of Output Format.

Enter the desired Page Length. If Printer selected above.

Enter the desired Top Margin. If Printer selected above.

Select Yes to record events to the datalogger only. Events will not be sent to the serial port.

Enter Print Time, printer will print at this time every day. Enter 00:00:00 to inhibit print time.

PRINT INTERVAL 00:00:00

ENTER

ENABLE PRINT KEY NO YES

ENTER

CLEAR TOTAL IF PRINT NO YES

ENTER

PRINT END OF BATCH NO YES

ENTER

Advance To

SETUP DATALOG/PRINT

(Select_list)

Enter Print Interval, Enter 00:00:00 to inhibit print interval..

Select YES to enable Print Key. Select NO to disable Print Key

Select Yes to clear the total after printing.

Batch mode only. Select Yes to print at end of batch.

Sub-menus Display Notes

SP3850 Flow Computer

6.3.22 SETUP DATALOG/PRINT

(Select_list)

STOP

List Items:

START

FLUID TIME RATE TOTAL GRAND TEMP DENS PRE1 PRE2 PRESS VISC FREQ1 FREQ2 KA-F KB-F

SET DATALOG/PRINT

ENTER

SET DATALOG/PRINT Config Select_list

PRINT LIST ITEMS FLUID YES

PRINT LIST ITEMS TIME YES

PRINT LIST ITEMS RATE YES

ENTER

PRINT LIST ITEMS DataLog size =001489

ENTER

Press enter to begin Setup Datalog/Print routine.

Press enter when Select_list is selected to setup print list.

Use Up and Down arrow keys to view list status. Press the Print or function key for the items that you wish to add or remove from the list. Items marked with Yes will be added to the list, items marked with No will be removed from the list.

The Select Print List Information display shows the current possible Datalog size.

6.3.23 ADMINISTRATIVE SETUP

Advance To

ADMINISTRATIVE SETUP

ENTER

TAG NUMBER

FT XXXX

ENTER

OPERATOR PASSWORD

****

ENTER

SUPERVISOR PASSWORD

****

ENTER

SOFTWARE VERSION

vxx.xx

Press Enter to begin Administrative Setup.

Use the up and down arrow keys to define the tag number.

Enter Operator Password. (Factory Set to 0)

Enter Supervisor Password, if logged in as supervisor. (Factory Set to 2000)

This display is used to show the software version of the installed software.

ENTER

PRODUCT ORDER CODE SP3850xxxxxxx

ENTER

UNIT SERIAL NUMBER 00000

ENTER

SENSOR SERIAL NUMBER 00000

ENTER

DISPLAY NEW ERR ONLY No Yes

ENTER

Advance To

SETUP NETWORK CARD

This display is used to show the product order code (model number).

This display is used to show the unit's serial number.

This display is used to show the sensor's serial number.

If yes is selected, an error message will only appear once until acknoledged by user.

Advance to Network Card only if a Network Card is installed.

SP3850 Flow Computer

6.3.24 SETUP NETWORK CARD (optional)

SETUP NETWORK CARD

ENTER

SELECT NTW PROTOCOL ModbusRTU

ENTER

NETWORK DEVICE ID 1

ENTER

BAUD RATE 2400 4800 9600 19200

ENTER

PARITY None Odd Even

ENTER

Press Enter to setup Network Card

Select desired Network Protocol.

Enter the device address on network (00-

255).

Select the desired Baud Rate.

Select the desired Parity.

Advance To

INSTRUMENT TYPE

7. Principle Of Operation

SP3850 Flow Computer

General Operation

Flow Equations

7.1 General:

The SP3850 Flow Computer uses several internal calculations to compute the compensated flow based on specific data input. Several computations are performed to arrive at the uncompensated flow, temperature, pressure, density and viscosity. This information is then used to compute the Corrected Volume Flow or Mass Flow.

Note concerning Fluid Information

The user will be prompted for Fluid Information during the setup of the instrument. The unit can store the fluid properties for up to 10 different fluids at one time. See also Appendix A for common fluid properties for liquids and gases.

7.2 Flow Equations:

Input Temperature Computation:

General Case

Tf = [% input span • (temp FS - Temp low scale)] + temp low scale

RTD Case

Tf = f(measured input resistance)

Input Density Computation:

Density Transmitter

density = [% input span • (density FS - density low scale)] + density low scale

Input Pressure Computation:

General Case

Pf = [% input span • (pressure FS - Pressure Low Scale)] + Pressure Low Scale

Gauge Case

Pf = Pf + Barometric

Manual Case or In Event of Fault

Pf = Pressure Default Value

Fluid Properties:

Liquid Generic Case

liquid density = reference density • (1 - (Therm. Exp. Coef. x 1

Liquid API Case

liquid density = reference density • (VCF API2540) • (PCF API)

e-6

(Tf-Tref))

Gas Case

gas density = reference density •

Pf . Tref Zref

.•Tf

Pref

• Zf

Where flowing and reference temperature and pressure are in absolute scale.

7.2 Flow Equations: (Continued)

SP3850 Flow Computer

Fluid Equations

Viscosity Computation:

Liquid Case

A exp

()

(Deg F + 459.67)

† centistokes =

Absolute Density

Where: centistokes = cP/(kg/l)

Gas Case

cP viscosity = A • (Tf + 459.67)

Uncompensated Flow Computation:

Pulse Input; Average K-Factor

input frequency • time scale factor

Volume Flow =

Pulse Input; Linear Table

input frequency • time scale factor

Volume Flow =

K-Factor

K-Factor (Hz)

Pulse Input; UVC Table

input frequency • time scale factor

Volume Flow =

K-Factor (Hz/cstk)

Pulse Input; Strouhal/Roshko Table

input frequency • time scale factor

Volume Flow =

Strouhal Cal / (1 + 3 • meter exp coeff. • 1

input frequency • (1 + 2 • meter exp coeff. • 1

Roshko Cal =

Pulse Input; Stouhal/Roshko Table

input frequency • time scale factor

Corrected Volume Flow Computation:

Liquid Case

Temperature Transmitter

Standard Volume Flow = volume flow • (1 - Therm.Exp.Coef. • (Tf-Tref))

cstk

e-6

(Tf-Tcal)

e-6

(Tf-Tcal)

Density Transmitter

Standard Volume Flow = volume flow •

Gas Case

std.volume flow = volume flow •

Mass Flow Computation:

Mass Flow = volume flow • density

density

reference density

Pf .•(Tref + 459.67) P

ref

( Tf + 459.67) Zf

•

Zref .

Flow Equations

SP3850 Flow Computer

7.2 Flow Equations: (Continued)

API 2540 Expansion Factor Equation

The above information was obtained from "Flow Measurement Engineering Handbook, 3rd Edition" by Richard W Miller.

1. Select the values for K

and K1 for the fluid group to be measured

2. Convert the base reference density for your fluid into the corresponding density units of kg/m

3. Solve for αb using equation above

4. C = αb • 1,000,000

7.3 Calculating the Fluid Expansion Factor

√

SP3850 Flow Computer

Calculating Expansion Factor

The liquid density is a function of the flowing temperature for many fluids. This unit solves an equation which represents this physical property of the fluid.

The information which the unit uses to describe the fluid is entered by the user in the following variables: Reference Temperature, Reference Density, Fluid Expansion Factor. Values for common fluids are listed in Appendix A This information is available for many fluids in one or more of the following forms:

Fluid Specific Gravity vs. Temp. Table Specific Gravity vs. Temp. Graph Fluid Density vs. Temp. Table

Fluid Density vs. Temp. Graph Begin by obtaining one of the fluid properties for the fluid you are using from available manufacturers information or Engineering Handbooks. In some cases this information is listed on the Material Safety Data Sheet for the fluid. Two temperature-specific gravity pairs will be required to compute the temperature coefficient. The reference temperature is simply chosen by the user. Common reference temperatures are 60° F or 15° C. However, for cryogenic fluids, the normal boiling point may also be used. In some cases the fluid data may list properties at 100° F, this temperature may also be used as the reference temperature. The reference temperature should be chosen so that it is in the application temperature range. i.e. application temperature range -10 to 120° F, reference temperature of 60° F chosen. Enter the reference temperature you have chosen at this point. The reference specific gravity corresponds to the fluid SPECIFIC GRAVITY at the reference temperature chosen. You may convert the fluid density information to specific gravity if it is in units other than specific gravity. Use EQ1.

Expansion Factor Equations

EQ1.

Spec.Grav. = Density of Fluid / Density of Water

Given the reference temperature, reference specific gravity, a second temp. and a second Spec.Grav., the Expansion Factor (C Factor) can be computed as follows:

EQ2. Used for Liquid Mass and Corrected Volume Equations

1 - (Spec.Grav.2 / Ref.Spec.Grav.)

[]

Given the reference temperature, reference density, a second temp. and a second density, the Expansion Factor (C Factor) can be computed as follows:

EQ3. Used for Liquid Mass and Corrected Volume Equations

[]

Temp.2 - Ref.Temp

√

1 - (Dens.2 / Ref.Dens.)

Temp.2 - Ref.Temp

x 1,000,000C =

C = Fluid Expansion Factor

7.4 Computation of Viscosity Coef. A and B

SP3850 Flow Computer

Computation of Viscosity Coef. A & B

The flow computer solves an equation which computes the viscosity as a function of temperature. Two parameters must be entered for this calculation to be performed. These are the setup parameters Viscosity Coef. A and Viscosity Coef. B. A table listing these values for common fluids is available in Appendix A.

Alternately, if your intended fluid is not listed, the Viscosity Coef. A and B can be derived from two known temperature/viscosity pairs. Begin by obtaining this information for you intended fluid. Convert these known points to units of Degrees F and centipoise (cP)

The information is now in a suitable form to compute the Viscosity Coef. A and Viscosity Coef. B using the following equation based on the fluid state.

For a liquid, A and B are computed as follows:

(T1 + 459.67) • (T2 + 459.67) • ln [ cP1/cP2]

B = ——————————————————————

(T2 + 459.67) - (T1 + 459.67)

cP1

A = ———————————

exp [ B / ( T1 + 459.67) ]

cP • Density of Water at 4°C

NOTE: cS = ——————————————

Density of Fluid at Flowing Conditions

For a gas, A and B are computed as follows:

In [cP2 / cP1]

B = ————————————————

In (T2 + 459.67) / (T1 + 459.67)

cP1

A = ———————————

( T1 + 459.67)

cP • Density of Water at 4°C

NOTE: cS = ——————————————

Density of Fluid at Flowing Conditions

7.5 Linearization Table

SP3850 Flow Computer

Linearization Table General Information

Linearization Table

(Pulse Inputs)

7.5.1 Linearization Table General Information

The Linearization Table is used when the flow input device gives a nonlinear input signal. The unit uses up to 40 different points, as entered by the operator, to form a curve for linearizing the input signal.

Notes:

1) A minimum of three points must be set up.

2) If "0" is entered for the frequency of any point other than point 1, the Flow Computer assumes there are no more points above the points that preceded them. The display will advance to the next setup prompt.

3) If the input frequency is above the highest or below the lowest frequency programmed, the unit will use the last known point for the K factor in computing the resulting actual flow.

4) Frequencies, Hz/Cstks or Roshko numbers should be entered in ascending order.

7.5.2 Linearization Table for Pulse Inputs

The linearization table for pulse inputs programming is quite simple when values of frequency and flow are known. The Flow Computer asks for 40 different frequencies (Freq) and 40 corresponding K factors (K). It then uses this data to determine what the actual flow is for any given input frequency. Usually the necessary data is provided with the flowmeter.

Linearization Table Interpolation

7.5.3 Linearization Table Interpolation

The Linearization Table routine uses the entered data to determine the K factor for any given input frequency or input flow signal. This is done by taking the closest data points above and below the input signal, then using those points to interpolate the K factor, then calculating the uncompensated flow from the data. Below are the formulas.

Parameters: Determine closest point above input signal signal = X, K factor (correction factor) = KA

Determine closest point below input signal signal = Y, K factor (correction factor) = KB

Let input signal = H, unknown K factor (correction factor) = KN

To find KN use this formula:

KA KN KB

K factor

Y H

Input

H - Y X - Y

x (KA - KB) + KB = KN

Universal Viscosity Curve

Strouhal Roshko Curve

7.6 Universal Viscosity Curve (UVC)

A Universal Viscosity Curve is a presentation of the calibration of a turbine flowmeter's K-Factor as a function of the Hz/cstks. It is used to represent the combined effects of flowrate and viscosity on the calibration of the flowmeter. It is entered as a table of point pairs in ascending order of Hz/cstks.

7.7 Strouhal Roshko Curve (StRo)

A Strouhal Roshko Curve is a presentation of the calibration of a turbine flowmeter's calibration as a table or curve of Strouhal number as a function of Roshko number. It is used to represent the combined effects of flowrate, flowing temperature and viscosity on the calibration of the turbine flowmeter. It is entered as a table of point pairs in ascending order of Roshko numbers.

8. Test, Service and Maintenance

8.1 Test Menus

SP3850 Flow Computer

Menus Display

8.1.1 TOP LEVEL TEST MENUS

START

SELECT OPERATE STATE Run Setup Test

ENTER

Audit Trail

STOP

START

Error history

STOP

START

Print System Setup

STOP

START

Keypad Test

STOP

START

Notes

Select Test to enter the instrument test & calibration routine.

NOTE: Supervisor (Service) password

required to gain access to this mode.

Refer to Page 48 for Details.

Refer to Page 49 Details.

Display test

STOP

START

Calibrate

STOP

START

Analog In Test

STOP

START

Pulse input test

STOP

START

Analog out test

STOP

START

Excitation out test

STOP

START

Pulse out test

Refer to Page 49 for Details.

Refer to Pages 50-54 for Details.

Refer to Page 54 Details.

Refer to Page 55 for Details.

Refer to Page 56 for Details.

STOP

START

Relay Test

STOP

START

Control inputs test

STOP

START

Battery Voltage Test

STOP

START

Data logger utility

Refer to Page 56 for Details.

Refer to Page 57 for Details.

8.2 Test Sub-Menus

SP3850 Flow Computer

Display NotesSub-menus

8.2.1 Audit Trail Submenu Group

8.2.2 Error History Submenu Group

Audit Trail

ENTER

Config_Audit nnnnn hh:mm:ss mm/dd/yy

Cal_Audit nnnnn hh:mm:ss mm/dd/yy

Audit Trail

Error history

ENTER

Press Enter to view the audit trail information.

The configuration audit trail format: nnnnn= number of critical menu changes, hh:mm:ss; mm/dd/yy = time and date of last change.

The calibration audit trail format: nnnnn= number of calibration changes, hh:mm:ss; mm/dd/yy = time and date of last change.

Press Menu to get back to audit trail top-level menu.

Press Enter to view error history.

NOTE: Press Print Key to print Error History. Printout will include time/date of each errors first occurrence.

8.2.3 Print System Setup Submenu Group

Error history Flow rate alarm low

Error history

Print System Setup

ENTER

Print System Setup Press ENTER to print

ENTER

Print System Setup —— Printing ——-

Press Up/Down arrow keys to scroll through error message history. Press CLEAR to clear entire error log.

Press Menu to get back to error history top=level menu.

Press enter key to enter print system setup submenu

Press enter to begin printing the system setup.

This message will display as the data transmission takes place.

Print System Setup

Press Menu to get back to print system setup top-level menu.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.4 Keypad test Submenu Group

8.2.5 Display test Submenu Group

Keypad test

ENTER

Keypad test Key pressed—> ENT

Keypad test

Display test

ENTER

00000000000000000000 00000000000000000000

Press Enter to enter keypad test

Press the various keys and the display will show the key that was pressed. Press Menu to exit the test

Press Menu to get back to Keypad test toplevel menu.

Press Enter to enter display test.

Upon pressing enter, each digit on the display will scroll 0-9 then A-Z. Press menu to exit the test.

Display test

Press Menu to get back to Display test toplevel menu.

ALL UNITS ARE CALIBRATED AT THE FACTORY PRIOR TO SHIPMENT CAUTION:

This unit must be calibrated using precision and calibrated equipment.

Equipment needed is as follows: Frequency Generator, Digital Multimeter, Precision Current/Voltage Source, Oscilloscope, Frequency Counter.

Sub-menus Display Notes

SP3850 Flow Computer

Calibration Submenu Group

8.2.6 Calibrate Aux1: 0mA Submenu Group

8.2.7 Calibrate Aux1: 20mA Submenu Group

Calibrate

ENTER

Calibrate Aux1: 0mA Iin=TB1-7 GND=TB1-4

ENTER

Calibrate Aux1: 0mA CALIBRATING ——

Calibrate Aux1: 0mA *** DONE ***

Calibrate Aux1: 0mA Iin=TB1-7 GND=TB1-4

STOP

Calibrate Aux1: 20mA Iin=TB1-7 GND=TB1-4

ENTER

Press Enter to begin the calibration routine. (Please note the caution above)

Connect Current Source (+) TB1-7, (-) TB1-4. Input 0mA and press Enter.

This message is displayed during calibration.

This message is displayed when the 0mA calibration is finished.

The display will automatically return to the Calibrate Aux1 0mA submenu. Press the Down arrow key to advance to the Aux1 20mA calibration.

Connect Current Source (+) TB1-7, (-) TB1-4. Input 20mA and press Enter.

Calibrate Aux1: 20mA 0 CALIBRATING ——

Calibrate Aux1: 20mA *** DONE ***

Calibrate Aux1: 20mA Iin=TB1-7 GND=TB1-4

STOP

Advance to

Calibrate Aux2: 0mA

This message is displayed during calibration.

This message is displayed when the 20mA calibration is finished.

The display will automatically return to the Calibrate Aux1 20mA submenu. Press the Down arrow key to advance to the Aux2 0mA calibration.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.8 Calibrate Aux2: 0mA Submenu Group

8.2.9 Calibrate Aux2: 20mA Submenu Group

Calibrate Aux2: 0mA Iin=TB1-8 GND=TB1-4

ENTER

Calibrate Aux2: 0mA 0 CALIBRATING ——

Calibrate Aux2: 0mA *** DONE ***

Calibrate Aux2: 0mA Iin=TB1-8 GND=TB1-4

STOP

Calibrate Aux2: 20mA Iin=TB1-8 GND=TB1-4

ENTER

To Calibrate: Connect Current Source (+) TB1-8, (-) TB1-4. Input 0mA and press Enter.

This message is displayed during calibration.

This message is displayed when the 0mA calibration is finished.

The display will automatically return to the Calibrate Aux2 0mA submenu. Press the Down arrow key to advance to the AUX2 20mA calibration.

To Calibrate: Connect Current Source (+) TB1-8, (-) TB1-4. Input 20mA and press Enter.

Calibrate Aux2: 20mA 0 CALIBRATING ——

Calibrate Aux2: 20mA *** DONE ***

Calibrate Aux2: 20mA Iin=TB1-8 GND=TB1-4

STOP

Advance to

Cal Therm: 100 Ohms

This message is displayed during calibration.

This message is displayed when the 20mA calibration is finished.

The display will automatically return to the Calibrate Aux2 20mA submenu. Press the Down arrow key to advance to the thermistor 100Ω calibration.

SP3850 Flow Computer

8.2.10 Cal Therm: 100 Ohms Submenu Group

Cal Therm: 100 Ohms Therm TB1-6 to TB1-4

ENTER

Cal Therm: 100 Ohms 0 CALIBRATING ——

Cal Therm: 100 Ohms *** DONE ***

Cal Therm: 100 Ohms Therm TB1-6 to TB1-4

STOP

Advance to

Cal Therm: Open

To Calibrate: Place a 100 ohm 0.1% resistor between TB1-6 and TB1-4. Press enter to calibrate.

This message is displayed during calibration.

This message is displayed when the calibration is finished.

The display will automatically return to the Cal Therm: 100 Ohms top-level menu. Press the Down arrow key to advance to the Thermistor Open calibration.

8.2.11 Cal Therm: Open Submenu Group

Cal Therm: Open Therm TB1-6 to TB1-4

ENTER

Cal Therm: Open 0 CALIBRATING ——

Cal Therm: Open *** DONE ***

Cal Therm: Open Therm TB1-6 to TB1-4

STOP

Advance to

Calibrate Aux2: 0V

To Calibrate: Remove the 100Ω 0.1% resistor from TB1-6 and TB1-4 and leave open. Press enter to calibrate.

This message is displayed during calibration.

This message is displayed when the calibration is finished.

The display will automatically return to the Cal Therm Open top-level menu. Press the Down arrow key to advance to the Aux2: 0V calibration.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.12 Calibrate Aux2: 0V Submenu Group

8.2.13 Calibrate Aux2: 10V Submenu Group

Calibrate Aux2: 0V Vin=TB1-5 GND=TB1-4

ENTER

Calibrate Aux2: 0V 0 CALIBRATING ——

Calibrate Aux2: 0V *** DONE ***

Calibrate Aux2: 0V Iin=TB1-5 GND=TB1-4

STOP

Calibrate Aux2: 10V Iin=TB1-5 GND=TB1-4

ENTER

To Calibrate: Connect Voltage Source (+) TB1-5, (-) TB1-4. Input 0V and press Enter.

This message is displayed during calibration.

This message is displayed when the 0V calibration is finished.

The display will automatically return to the Calibrate Aux2 0V top-level menu. Press the Down arrow key to advance to the Aux2 10V calibration.

To Calibrate: Connect Voltage Source (+) TB1-5, (-) TB1-4. Input 10V and press Enter.

8.2.14 Calibrate 100 ohm RTD Submenu Group

Calibrate Aux2: 10V 0 CALIBRATING ——

Calibrate Aux2: 10V *** DONE ***

Calibrate Aux2: 10V Iin=TB1-5 GND=TB1-4

STOP

Advance to

Cal RTD 100ohm

Cal RTD 100ohm JMP TB1-6,7 100R=7,8

ENTER

Cal RTD 100ohm 0 CALIBRATING ——

This message is displayed during calibration.

This message is displayed when the 10V calibration is finished.

The display will automatically return to the Calibrate Aux2 10V top-level menu. Press the Down arrow key to advance to the 100 ohm RTD calibration.

To Calibrate: Connect a jumper wire between TB1-6 and TB1-7, Place a 100 ohm 0.1% resistor between TB1-7 and TB1-8. Press enter to calibrate.

This message is displayed during calibration.

Cal RTD 100ohm *** DONE ***

Cal RTD 100ohm JMP TB1-6,7 100R=7,8

STOP

Advance to

Calibrate 0mA Aout

This message is displayed when the RTD calibration is finished.

The display will automatically return to the Calibrate 100 ohm RTD top-level menu. Press the Down arrow key to advance to the 0mA analog out calibration.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.15 Calibrate 0mA Aout Submenu Group

8.2.16 Calibrate 20mA Aout Submenu Group

Calibrate 0mA Aout + TB1-15 - TB1-16

ENTER

Calibrate 0mA Aout Enter mA: 0.00000

ENTER

Calibrate 0mA Aout + TB1-15 - TB1-16

STOP

Calibrate 20mA Aout + TB1-15 - TB1-16

ENTER

Calibrate 20mA out Enter mA: 20.00000

ENTER

Connect ammeter to (+) TB1-15, (-) TB1-16. Press enter.

To trim 0mA analog output: Press CLEAR to enable editing and enter a small negative number (i.e. -0.100) to force a display reading, then clear and enter small quantity measured on your meter. The display will return to Calibrate 0mA out. Press the down arrow key to advance to the 20mA analog out or repeat above if necessary.

Connect ammeter to (+) TB1-15, (-) TB1-16. Press enter.

To trim 20mA analog output: Press CLEAR to enable editing and enter the current reading that is on the ammeter display. Press enter.

8.2.17 Analog In Test Submenu Group

Calibrate 20mA Aout + TB1-15 - TB1-16

Calibrate

Analog In Test

ENTER

Analog In Test Volts T5:00.000

STOP

Analog In Test mA T7:00.000 T8:00.000

STOP

The display will automatically return to the Calibrate 20mA Aout submenu. Calibration is complete.

Press the Menu key to go back to Calibrate top-level menu.

Press enter to test the analog inputs.

To check voltage input accuracy: Use TB1-4 as Reference Ground, input 0-10 Volts to TB1-

5. Display should show voltage being input. Use voltage meter to verify input.

To check current input accuracy: Use TB1-4 as Reference Ground, input 0-20mA to TB1-7 and/or TB1-8. Display should show current being input. Use ammeter to verify input.

Analog In Test Ohms Therm:100.000

Analog In Test

To check RTD input accuracy: Connect a jumper wire between TB1-6 and TB1-7, Place a 100 ohm 0.1% resistor between TB1-7 and TB1-8. Display should show 100 ohms ±0.1%.

Press Menu key to return to Analog In Test top-level menu.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.18 Pulse input test Submenu Group

2.5V

START

10mV

100mV

40Hz 3KHz

20kHz

STOP

START

STOP

Pulse input test

ENTER

Pulse input test Trigger level 2.5V

ENTER

Pulse input test count speed 3kHz

ENTER

Pulse input test F1: 0 F2: 0

Pulse input test

Press Enter key to test the pulse input.

Use the Up/Down arrow keys to select the appropriate trigger level.

Use the Up/Down arrow keys to select the appropriate frequency range.

To check Pulse input accuracy at the above settings: Use TB1-4 as reference ground, input a frequency on TB1-2 and/or TB1-3. The display should show frequency being input. Use a frequency counter to verify input.

Press Menu key to return to Pulse input test top-level menu.

8.2.19 Analog out test Submenu Group

8.2.20 Excitation out test Submenu Group

Analog out test

ENTER

Analog out test *0 4 10 15 20 mA

Analog out test

Excitation out test

ENTER

Excitation out test *5v 12v 24v

Press Enter to test the analog output.

To simulate analog output: Connect an ammeter to (+) TB1-15, (-) TB1-16. Press the key under the desired setting to move the asterisk (*). The unit should output the selected current.

Press Menu key to return to Analog out test top-level menu.

Press Enter to test the excitation output.

To test the excitation output: Connect a voltmeter to (+) TB1-1, (-) TB1-4. Press the key under the desired setting to move the asterisk (*). The unit should output the selected voltage.

Excitation out test

Press Menu key to return to Excitation out test top-level menu.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.21 Pulse out test Submenu Group

8.2.22 Relay test Submenu Group

Pulse out test

ENTER

Pulse out test *0Hz 1Hz 10Hz 20Hz

Pulse out test

Relay Test

ENTER

Rly1 Rly2 Rly3 Rly4 Off Off Off Off

Press Enter key to test the pulse output.

To simulate a frequency on the pulse output: Connect a frequency counter to (+)TB1-13, (-)TB1-14. Press the key under the desired setting to move the asterisk (*). The unit should output the selected frequency.

Press Menu key to return to Pulse out test top-level menu.

Press Enter to test the relays.

To manually control the relay outputs: Press the key under the desired relay to toggle the relays On/Off. Use an ohmmeter to check the relay contacts.

8.2.23 Control input test Submenu Group

Relay Test

Control inputs test

ENTER

TB1-9 TB1-10 TB1-11 Off Off Off

Control inputs test

Press Menu key to return to Relay Test toplevel menu.

Press Enter to test the control inputs.

To check the control inputs: Use TB1-12 as reference, input a positive 3-30 VDC signal to TB1-9, TB1-10 and/or TB1-11, The Display will show ON when input is active, OFF when inactive.

Press Menu key to return to control input test top-level menu.

Sub-menus Display Notes

SP3850 Flow Computer

8.2.24 Battery Voltage test Submenu Group

8.2.25 Data logger utility Submenu Group

Battery Voltage Test

ENTER

Battery Voltage Test

3.312 Volts

Battery Voltage Test

Data logger utility

ENTER

Data logger utility Log 10 958 Max

STOP

Press Enter key to view the battery voltage.

The display will show the battery voltage. Replace battery at 2.5 VDC or below.

Press Menu key to return to battery voltage test top-level menu.

Press Enter to use data logger utility.

The displays shows the number of Data Logs. Press the Down arrow key to advance to PRT (print) or CLR (clear).

Data logger utility Log 00001 PRT CLR

Data logger utility

Press PRINT key to output data logger logs to printer, Press CLEAR key to clear the data logger contents.

Press Menu key to return to Data logger utility top-level menu.

SP3850 Flow Computer

8.3 Internal Fuse Replacement

Instructions:

1. Make sure you follow proper E.S.D. Precautions. All persons performing this replacement must follow proper grounding procedures.

2. Turn the power to the unit off.

3. Disconnect the two piece connector rear terminal block, leaving all connections in place.

4. Remove the unit from the panel.

5. Remove the four machine screws (see fig. 1) which hold the two sections of the case together.

6. The rear section of the case should detach from the rest of the case. It may be necessary two cut the wiring label along the joint where the two sections connect. With the rear section of the case removed the fuse will be exposed (located near the rear terminal, AC connection).

7. Locate the Fuse F1 (see fig. 2) and unplug the fuse from its socket.

8. Insert the new fuse into the socket. Insure that the pins are fully inserted and straight.

9. Reassemble the case and install the four machine screws which join the two sections of the case.

10.Reinstall the unit into the panel.

11. Reconnect the rear terminal block.

12.Turn the unit back on.

Fuse Specifications:

110 VAC Power: 160mA/250V, TD Wickman 19372-030-k or equivalent 220 VAC Power: 80mA/250V, TD Wickman 19372-026-k or equivalent 12/24 VDC Power: 800mA/250V, TD Wickman 19374-046-k or equivalent

fig. 1 fig. 2

Screws (4 places)

fuse

FUSE

9. RS-232 Serial Port

9.1 RS-232 Port Description:

The SP3850 has a general purpose RS-232 Port which may be used for any one of the following purposes:

Transaction Printing

Data Logging

Remote Metering by Modem (optional)

Computer Communication Link

Configuration by Computer

Print System Setup

Print Calibration/Malfunction History

9.2 Instrument Setup by PC’s over Serial Port

A Diskette program is provided with the SP3850 that enables the user to rapidly configure the SP3850 using a Personal Computer. Included on the diskette are common instrument applications which may be used as a starting point for your application. This permits the user to have an excellent starting point and helps speed the user through the instrument setup.

SP3850 Flow Computer

9.3 Operation of Serial Communication Port with Printers

The system setup and maintenance report list all the instrument setup parameters and usage for the current instrument configuration. In addition, the Audit trail information is presented as well as a status report listing any observed malfunctions which have not been corrected.

The user initiates the printing of this report at a designated point in the menu by pressing the print key on the front panel.

9.4 SP3850 RS-232 Port Pinout

12345

6789

1 Handshake Line

2 Transmit

3 Receive

4 Do Not Use

5 Ground

6 Do Not Use

7 Do Not Use

8 Do Not Use

9 Do Not Use

RS-232 RS-485

12345

6789

12345678910111213141516171819202122

12345

6789

23 24

10. RS-485 Serial Port (optional)

10.1 RS-485 Port Description:

The SP3850 has a an optional general purpose RS-485 Port which may be used for any one of the following purposes:

Accessing Process Parameters

Rate, Temperatures, Density, Pressure, Viscosity, Setpoints, Month, Day, Year, Hour, Minutes, Seconds, etc.

Accessing System Alarms

System, Process, Self Test, Service Test Errors

Accessing Totalizers

Totalizer and Grand Totalizer

Executing Various Action Routines

Reset Alarms, Reset Totalizers, Print Transaction, Reset Error History, Start, Stop, Clear

SP3850 Flow Computer

10.2 General

The optional RS-485 card utilizes Modbus RTU protocol to access a variety of process parameters and totalizers. In addition, action routines can be executed. For further information, contact factory and request RS-485 Protocol manual for SP3850.

10.3 Operation of Serial Communication Port with PC

The flow computer's RS-485 channel supports a number of Modbus RTU commands. Refer to port pinout (below) for wiring details. Modbus RTU drivers are available from third party sources for a variety of Man Machine Interface software for IBM compatible PC's.

The user reads and writes information from/to the RS-485 using the Modbus RTU commands. The SP3850 then responds to these information and command requests.

10.4 SP3850 RS-485 Port Pinout

1 Ground

12345

6789

2 Ground

3 Ground

4 TX/RX (+)

5 TX/RX (-)

6 Do Not Use 7 Terminating Resistor (180 Ω)

8 TX/RX (+)

9 TX/RX (-)

NOTE: To termintae cable end, connect Pin

7 to either Pin 4 or Pin 8.

RS-232 RS-485

12345

6789

12345678910111213141516171819202122

12345

6789

23 24

11. Flow Computer Setup Software

The SP3850 setup program provides for configuring, monitoring and controlling a SP3850 unit over the RS-232 link.

Sample applications are stored in disk files. The setup program calls these

Templates

SP3850 ( Similarly you can load the setup in program memory from either a disk file ( a file) or from the SP3850 unit (Up

The program can monitor outputs from the unit while it is running.

The program can reset alarms and totalizers.

For assistance there are mini-helps at the bottom of each screen in the program. There is also context sensitive help available for each screen accessible by pressing the F1 key.

11.1 System Requirements:

. You can store the setup from the program’s memory to either the

Downloading

the file) or to a disk file (

a file).

Saving

SP3850 Flow Computer

the file) for later usage.

Opening

IBM PC or compatible with 386 or higher class microprocessor

4 MB RAM

3 MB free disk space

VGA or higher color monitor at 640 x 480

Microsoft® Windows™ 3.1 or 3.11 or Windows 95™

Communication Port - RS-232

RS-232 Cable

11.2 Cable and Wiring Requirements:

The serial communication port on your PC is either a 25 pin or 9 pin connector. No cabling is supplied with the setup software. A cable must be purchased separately or made by the user. It is recommended to purchase a cable which matches the available communication port on you PC and a 9 pin male connection for the SP3850 serial port.

11.3 Installation for Windows™ 3.1 or 3.11

The Setup Software includes an installation program which copies the software to your hard drive.

Insert Setup Disk 1 in a floppy drive.

In the Program Manager, click File, and then select Run.

NOTE: For Windows 95™ Click the Start button, select Run and proceed

as follows:

Type the floppy drive letter followed by a colon (:) and a backslash (\), and the word setup. For Example:

a:\setup

Follow the instructions on your screen.

11.4 Using the Flow Computer Setup Software

The setup software window consists of several menu “Tabs”. Each tab is organized into groups containing various configuration and/or monitoring functions. To view the tab windows, simply click on the tab. The previous tab window will be hidden as the new tab window is brought to the foreground.

11.5 File Tab

The File Tab has three sections. Any of the options on this tab can also be accessed from the File submenu.

SP3850 Flow Computer

The Template Section provides for opening and saving templates. The

Save As

buttons provide the standard Windows functionality for dealing with files.

Save

and

The Open button is used to open existing templates or files.

only

There are two additional menu items available

from the pull down File menu:

Open existing file and Templates.

The

Open existing file

, option allows for creating custom templates using the existing template in memory as the starting point. Assign a new name for this template. The template will be saved under this new name.

The

Open Template

option will bring up a list of predefined templates that can be loaded into the program. These predefined templates are useful as a starting point when defining custom templates.

A typical scenario using the setup program would be the following:

• Open up a predefined template from the supplied list

• Choose ‘Save As’ to save this to a new file name

• Proceed to customize the template by making any changes that are needed

• Save the setup to disk (if you want to reuse this template)

• Download the template to an attached unit.

The Communications with SP3850 Section allows the user to upload the setup from the unit or download the setup to the unit.

The Print (report) Section allows the user to:

11.6 Setup Tab

The Setup tab is where majority of the SP3850 instrument setup modifications are done. The Setup tab is divided into five sections.

1. Configure the current Windows printer through the Select Printer option.

2. Print a Maintenance Report through the PC's printer using the Print Maintenance option.

3. Print the current setup through the PC's printer using Print Setup option.

System Section: Flow Equation, Indicators

Input Section: Flow, Fluid, Compensation Inputs 1 & 2, Control Inputs

Output Section: Pulse, Currents

Relay Section: Relays

Other Settings Section: Administration, Communication, Datalog #Printing,

Time & Date

NOTE: Many setup items are enabled or disabled depending on previous setup

selections, It is important to work your way through the above list in the order shown. Be sure to verify your selections when you are through programming to insure that no settings were changed automatically.

11.7 View Tab

SP3850 Flow Computer

The View Tab screen allows for viewing selected group items on the PC in a similar format as shown on the unit display. Data from the following groups can be viewed in the List of Values section:

Process Parameters (i.e. rate, temperature)

Totalizers (i.e. total, grand total)

Error Log

Software Version

The setup software assumes the current setup has been uploaded from the flow computer into the PC. It is important that the setup program and the SP3850 unit are using the same setup information at all times or the data will be inconsistent. It is best to upload or download the setup before using this feature.

To start the viewer, first check the boxes of items to view and then click the start button. The data will appear in the appropriate sections and will be continuously updated. The refresh rate is dependent on the number of items that are being viewed and the baud rate of the connection. Data in the List of Values section can be collapsed by clicking on the ‘minus’ sign in front of the group title. The data can be expanded by clicking on the ‘plus’ sign in front of the group title. If a group is collapsed and data in the group changes on refresh, the group will automatically expand. Changing the view items requires stopping the current viewing, checking the new selections and then restarting the viewer.

If communication errors occur while reading data from the SP3850 device, the word ‘Error’ will appear in place of the actual value. If the connection to the SP3850 is lost, the viewer will time out with a message saying the device is not responding.

The viewer will attempt to communicate with the SP3850 device matching the device ID set in the communications screen. If you are having trouble establishing communication, compare settings for the PC and the flow computer. Also verify the connections between the PC and flow computer.

11.8 Misc. Tab

This tab has three sections: Tools, Actions and Options.

The tools section contains various system administration activities such as creating/ modifying the initial sign-on screen.

Create Sign-on and Create Print Header

The Actions section is used to send commands to the SP3850 unit.

Reset Totalizers, Reset Alarms, Reset Alarm History

The Options section has the following selections:

Network Card Setup

Additional capabilities may be provided in the future.

NOTE: Future options appear as disabled buttons on the screen.

SP3850 Flow Computer

12. Glossary Of Terms

Acknowledge & Clear Alarms

Acknowledge is used to clear alarm relays and remove any visual alarm messages from the display. In the run mode, press the ENTER key or activate CONTROL INPUT 3 (if set for ACK) to momentarily clear alarms and alarm messages. Alarms will reassert themselves if alarm conditions are still present.

Analog Output

The analog signal (4-20mA) that is generated by the SP3850. It can correspond to the Rate, Total, Temperature, Pressure or Density. This output is used primarily for transmission of process information to remote systems.

Audit Trail

The audit trail is used to track the number of changes made to the units setup program.

Auto Batch Restart

The Auto Batch Restart function allows the user to set an amount of time to automatically restart a batch after the completion of a batch. This time can be set from 1 to 99 seconds.

Barometric Pressure

An entry of the average, local atmospheric pressure at the altitude or elevation of the installation. (typically

14.696 psia)

Batch Count Mode

Batch Count Mode specifies the user preference for count direction. The "Up" selection begins with a value of "0" and counts up until the batch size is reached. The "Down" selection begins with a value equal to the desired batch size and counts down to "0".

Batch Overrun

The SP3850 offers a batch overrun compensation routine. If batch overrun occurs due to slow valve response time, the unit will compensate for the overrun amount on the next batch. This feature can be disabled if desired.

Batcher

An instrument which controls the dispensing of desired batch amounts. Liquid batching systems are usually comprised of a batch controller (batcher), flowmeter and control valve. The batcher opens and closes the valve through the use of relays and measures the amounts of liquid being dispensed via the flowmeter.

Baud Rate

The speed of serial communication transmissions, expressed in bits per second.

Calibration Temperature

The temperature at which a flow sensor was calibrated on a test fluid.

C-Factor (Fluid Expansion Factor)

A parameter in a flow equation which is used to describe the relationship between density or volume and temperature changes.

Corrected Volume Flow

The equivalently volume at a reference temperature condition which involves the measurement of liquid volume flow using a flow sensor and temperature sensor to compensate for thermal expansion.

Custody Transfer

Weights and Measure metering codes often specify several requirements for instruments and mechanisms to prevent and track changes in the setup of an instrument which may be used in the commercial sale of goods. The SP3850 tracks changes via the Audit Trail.

Data Logger

The capturing of information for later use and the mechanism for specifying the conditions where a capture should be made.

DC Output / Excitation Voltage

An on-board DC power supply used to power peripheral sensors. The SP3850 offers excitation voltages of 5VDC, 12VDC or 24VDC when powered by AC voltage.

Default Value

The value to be used by the instrument if a sensor failure or out of ranch signal is detected.

Expansion Factor

See C-Factor

Flow Alarm

A visual indication that the volumetric flowrate is above or below the flow alarm setpoint specified by the user.

SP3850 Flow Computer

12. Glossary Of Terms (Continued)

Flow Equation

A recognized relationship between the process parameters for flow, temperature, pressure and density used in flow measurements.

Flow Signal Timeout

Flowing Z-Factor

The mean Z-Factor under flowing conditions of temperature and pressure for a specific gas.

Follow, Alarm

Alarm relays which are non latching and whose output state is based solely on the comparison of the current process value and the alarm setpoint (trip point).

Function Key

A key on a push-button panel or keyboard (whose function is described by the key label) used to perform an instrument function or special routine.

Handshake

A means of controlling the information flow between two pieces of equipment to prevent the sending device from transmitting information at a rate faster than what can be accepted by the receiver.

Gas Cor. Vol Eq.

An equation where the corrected volume flow of gas at STP is computed from measured volume flow, temperature and pressure as well as stored gas properties.

Gas Mass Eq.

An equation where the mass flow of a gas is computed from measured volume flow, temperature and pressure as well as stored gas properties.

Hysteresis

The relay hysteresis is a "dead band" setting which allows the relay to remain energized for a given amount below the setpoint. This is used to prevent relay chatter when the process value is near the setpoint value. Example: If the Preset is set at 100, and the hysteresis is set at 10, the relay will energize when the rate, temp or dens. reaches 100, the relay will remain energized until the reading falls below 90.

Input Termination

Input signal lines on digital inputs often require pullup or pulldown resistor configurations to operate properly with different sensor configurations. The SP3850 contains such resistors and may be enabled via the setup menu.

Inlet Pipe Bore

The internal pipe diameter upstream of the flow measurement element.

Inhibit Totalizer

"Inhibit Total" is a Control Input 1 setting that is used to stop the totalization. If enabled, a voltage level on control input 1 will inhibit the total as long as the voltage is present. This feature is useful during meter proving and in applications that provide a sensor to signal the flow computer when fluid is present.

K-Factor

A scaling factor derived from the pulses produced by a flowmeter output, expressed in pulses per unit (i.e. pulses/ gallon)

Limit Setpoint

An alarm trip point setting which specifies the value or magnitude of a process parameter necessary to activate an alarm indicator or control relay.

Linear Flowmeter

A flow measurement device whose output is proportional to flow.

Linearization

The mathematical correction of a nonlinear device. The SP3850 uses a linearization Table which is made up of input/output values and makes interpolations of the table to arrive at a "linearized" measurement.

LinTbl

Abbreviation for Linearization Table.

Low Pass Filter

A low pass filter passes low input frequencies while blocking high frequencies. In the SP3850, this is the maximum input count speed to be encountered in an application. It is expressed in counts per second (Hz).

SP3850 Flow Computer

12. Glossary Of Terms (Continued)

Mass Flow

Mass Flow is inferred by the volumetric flow and density (or implied density) of a fluid.

Maximum Batch Preset

Maximum Drain Time

Max Window

The max. window time sets the maximum sample time (1 to 99 sec) for the ratemeter.

Meter Expansion Coef.

A coefficient in an equation which may be used to correct for changes in flowmeter housing dimensional changes with temperature.

Modem Init Master

The "Modem Init Master" menu allows the user to select whether the unit will engage in a configuration conversation with the modem on power up or impart no setup information to the modem and use it "as is". For most users it is recommended to choose "yes" for "Modem Init Master".

Parity

A method for detecting errors in transmissions of serial communications data.

Preset

A set point used to trigger the relay outputs of the SP3850.

Print Interval

The print interval allows the SP3850 to transmit information to the serial port at selectable time intervals.

Private Code

An operator password code which authorizes changes to the setup of the instrument but blocks access to the Service/Calibration/Test mode. The private code also blocks the clearing of the Grand Total.

Process Parameters

Any sensor information which has been scaled to engineering units including Flow, Temperature, Pressure and Density.

Pulldown (Input Termination)

The termination of an input at which the input is pulled down to ground through a resistor. Inputs that are terminated by this method need to be driven high with a positive voltage pulse.

Pullup (Input Termination)

The termination of an input at which the input is pulled up to a positive voltage through a resistor. Inputs that are terminated by this method need to be pulled low with a sinking current or contact to ground .

Pulse Output

The pulse output of the SP3850 is available for remote accumulation of the total or sent to peripheral devices, such as a PLC. The output can be scaled using the Pulse Output Scaling Constant.

Quad

Abbreviation for Quadrature. Quadrature signals are used for direction control. Two flowmeter signals are output with a 90° phase shift. The counter counts UP when channel A precedes channel B, and counts DOWN when Channel A lags Channel B.

Quick Setup

A utility that provides for rapid configuration of an instrument. The SP3850 quick setup provides the following:

1) Prompts the user for only critical information.

2) Automatically sets specifications to common uses. After following the Quick Setup procedure, the unit will be operational to perform the basic measurement. The setup can be further customized using the setup menus.

SP3850 Flow Computer

12. Glossary Of Terms (Continued)

Quick Update %

This feature is used to disable the rate averaging filter when a significant change in the flow rate occurs. The user can enter the percent of change needed to be detected to disable the averaging feature. This is especially useful during start-up and shutdown of flow.

Rate Averaging Filter

The rate averaging filter is used to stabilize fluctuating rate displays. Higher settings provide more averaging for a more stable display. Derived from the equation:

(OLD DATA x "Avg. Filter" + NEW DATA)

("Avg. Filter" + 1)

Ratemeter

Any device used to display the speed of a process. The ratemeter in the SP3850 displays flow rate.

Ref. Dens.

Abbreviation for Reference Density. This is the fluid density at referenceconditions of temperature and pressure.

Ref. Temp.

Abbreviation for Reference Temperature. This represents the base or reference condition to which corrected flow will be computed.

Ref. Z-Factor

Abbreviation for Reference Z-Factor. The Z-Factor for a gas at reference conditions of temperature and pressure.

Reset/Start Control Input

In a batching system, a single operator activation of the START key or Control Input 1 will reset the total then start the batch process.

Roshko

A parameter defined as: Ro =

Single_Pulse

The Single_Pulse setting is used for flowmeters with single pulse outputs.

Slow Start Quantity

Stop/Reset Control Input

In a batching system, a single operator activation of the STOP key or Control Input 2 will stop the batch process then reset the total.

f • temperature correction

cstk

STP Reference

The users desired pressure and/or temperature to be considered as the reference condition in the computation of fluid properties or corrected volume conditions.

Strouhal

A calibration parameter defined as temperature corrected K-factor for a turbine flowmeter.

Time Constant

A damping factor for an averaging filter for the analog output. (see also Rate Averaging Filter)

Totalizer

Any device which accumulates and displays a total count.

UVC

Abbreviation for Universal Viscosity Curve. A presentation of the combined flowrate/viscosity calibration for a turbine flowmeter.

VFD

Abbreviation for Vacuum Fluorescent Display

Visc Coef

Abbreviation for Viscosity Coefficient. One or more coefficients in an equation used to describe the viscosity as a function of temperature for a fluid.

Volume Flow

The measurement of volumetric flow.

13. Diagnosis and Troubleshooting

13.1 Response of SP3850 on Error or Alarm:

Error and warning indications which occur during operation are indicated in the RUN mode alternately with the measured values. The SP3850 Flow Computer has three types of error:

TYPE OF ERROR DESCRIPTION

Sensor/Process Alarms Errors detected due to sensor

Self Test Errors Errors detected during self test.

SP3850 Flow Computer

failure or process alarm conditions

System Alarms Errors detected due to system

failure

Some alarms are self clearing. Other alarms require the user to acknowledge and clear the alarm. Press the ENTER button to acknowledged and clear alarms. Alarms may reassert themselves if the alarm condition is still present.

NOTE: A historical error alarm log is available in the "Test Mode".

The following descriptions suggest possible causes and corrective actions for each alarm message.

13.2 Diagnosis Flow Chart and Troubleshooting

All instruments undergo various stages of quality control during production. The last of these stages is a complete calibration carried out on state-of-the-art calibration rigs.

A summary of possible causes is given below to help you identify faults.

SP3850 Flow Computer

Is there an input power supply voltage across Terminals 23 and 24?

Yes

Is the Display Backlight Visible?

Yes

Are the Display Characters Visible?

Yes

Is there a black bar across the display?

Yes

Check the connections according to the circuit diagrams.

Check junction box fuses.

Check/Replace internal fuse. If fuse is OK, Factory Service Required.

The display may not be visible with ambient temperatures below -10 °C Allow the instrument to warm up. Contact factory if necessary

Check line voltage. If voltage is OK, Factory Service Required.

Does the display alternate between blank and sign on message?

Does the display show an error message?

No system or process errors present.

Yes

Check line voltage. If voltage is OK, Factory Service Required.

See section 12.3 for cause and remedy.

13.3 Error & Warning Messages:

SP3850 Flow Computer

13.3.1 Sensor/Process Alarms

Error/Warning Message

TOTALIZER ROLLOVER

AUX INPUT TOO LOW!

RTD OUT OF RANGE

RATE OVERFLOW ERROR

PULSE OUT OVERFLOW

Cause

Displayed when totalizer rolls over

4-20 mA Input current at aux input smaller than 3.5 mA:

• Faulty Wiring

• Transmitter not set to "4-20 mA"

• Transmitter defective

Input current at RTD input too low:

• Faulty wiring

• RTD defective

Pulse counter overflowed. The totalizer may have lost counts.

Calculated pulse frequency too large:

• Pulse width setting too long

• Larger pulse scaler needed

Remedy

Acknowledge Rollover, Remedy not required

• Check wiring

• Check function of sensor

• Check wiring

• Check function of RTD sensor

• Report error to factory

• Check application conditions

• Check wiring

• Adjust pulse value

• Adjust pulse width

• Check process conditions

FLOW RATE ALARM LOW FLOW RATE ALARM HIGH

TEMP ALARM LOW TEMP ALARM HIGH

DENSITY ALARM LOW DENSITY ALARM HIGH

PRESSURE ALARM LOW PRESSURE ALARM HIGH

BATCH OVERRUN ALARM

MODEM NOT PRESENT

Limit value exceeded.

Batch size exceeded by more than set limit.

The setup expects modem usage and a modem is not responding.

• Check application if necessary

• Check limit value

• Adjust the limit value if required

• Check valves in system for proper operation and/or leaks

• Check limit value

• Adjust the limit value if required

• Check setup for proper baud rate, parity, etc.

• Check modem connection and cycle power to the unit.

• Replace modem

SOFTWARE ERROR RESET

EXTENDED PFI LOCKUP

The setup expects modem usage and a modem is not responding.

Unit was operated with an input power level lower than safe operating range for an extended period of time.

• Report error to factory

• Check data in unit. Totalizer may have inaccuracies

• Investigate brownout cause.

13.3 Error & Warning Messages: (Continued)

SP3850 Flow Computer

13.3.2 Self Test Alarms

Error/Warning Message

AUX INPUT TOO HIGH!

BATTERY LOW WARNING

A to D NOT CONVERTING

TIME CLOCK ERROR

Cause

Analog input signal of the auxiliary input exceeded by more than 3%:

• Sensor overranged

• Incorrect full scale setting of transmitter

• Function error in transmitter or faulty wiring

Battery voltage too low

Fault in analog/digital converter

The correct time/date is no longer shown

Remedy

• Check analog signal range

• Check the application conditions

• Check wiring

• Replace Battery

• Consult Factory for service information

• Unit may self correct, Press ENTER to acknowledge & clear alarm

• If error reasserts, factory service is required

• Re-enter time and date.

• If error occurs again contact factory

CAL CHECKSUM ERROR

SETUP CHECKSUM ERROR

RTD/THERM FAILURE

Calibration constants have been corrupted

The units setup has been corrupted

Input current at RTD or Thermistor input too low:

• Faulty wiring

• RTD/Thermistor defective

• Report error to factory

• Check wiring

• Check function of RTD/Thermistor sensor

SP3850 Flow Computer

Appendix A

Fluid Properties Table

LIQUID

FLUID REF. REF. COEFF. OF LIQ.VISC. VISCOSITY BY

DENSITY TEMP. (ºF) EXPANSION ANDREDE’s ANDREDE’s (lb./gal) (e-6 format) EQUATION EQUATION

COEFF. “A” COEFF. “B”

AIR 7.2947 -317.8 1626.2 0.172 0 AMMONIA 5.6996 -28.2 570.4 0.00157 2228.25 ARGON 11.6172 -302.6 1486.1 0.011291 511.34 CO2 8.735 -10.0 1260.9 0.000001 5305.44 METHANE 3.5404 -258.7 1052.3 0.006819 526.08 NATURAL GAS 3.5404 -258.7 1052.3 0.006819 526.08 NITROGEN 6.7438 -320.4 1491.7 0.006524 434.94 OXYGEN 9.5208 -297.4 1345.8 0.019773 340.29 PROPANE 4.2344 60 717.8 0.009969 1267.35 Nx-19 3.5404 -258.7 1052.3 0.006819 526.08 GASOLINE 6.2572 60 370.3 0.045617 1432.26 KEROSENE 6.9243 60 268.1 0.004378 3245.78 No. 2 FUEL 7.8843 60 88.5 0.000453 4946.15 WATER 8.3389 60 101.5 0.001969 3315.61

GAS

FLUID REF. REF. REF. Z Z FACTOR AT VISCOSITY BY VISCOSITY BY

DENSITY TEMP. (ºF) FACTOR 100 PSIA ANDREDE’s ANDREDE’s (lb./ft3) (14.696 PSIA) and 60°F EQUATION EQUATION

COEFF. “A” COEFF. “B”

AIR 0.076 60 1 0.997 0.000138 0.775522 AMMONIA 0.045 60 1 0.955 0.000013 1.05951 ARGON 0.105 60 1 0.995 0.00021 0.750757 CO2 0.116 60 1 0.954 0.000049 0.91136 METHANE 0.042 60 1 0.970 0.000018 1.015892 NAT. GAS 0.0456 60 1 0.970 0.000018 1.015892 NITROGEN 0.074 60 1 0.998 0.000202 0.7128734 OXYGEN 0.084 60 1 0.995 0.000169 0.761811 PROPANE 0.116 60 1 0.870 0.00002 0.952092 Nx-19 0.0456 60 1 0.97 0.000018 1.015892

Appendix B

SP3850 Flow Computer

INH START/

STOP KEYS

NO TOT FOR

BATCH DELAY

QUANTITY

SLOW START

TEMP

PRESSURE

BAROMETRIC

QUICK

DEFAULT

PRESSURE

DEC PLACES

RATE AVERAGE

UNITS

RATE DEC

PRESSURE

RATE

PRESSURE

DESCRIPTOR

UNITS

RATE TIME

PRESSURE

DESCRIPTOR

UPDATE %

FILTER

PLACES

DESCRIPTOR

BASE

METER

EXPANSION

HIGH FLOW

RATE ALARM

LOW FLOW

RATE ALARM

TABLE B

CHANGE

TABLE A

CHANGE

AVERAGE

KB-FACTOR

AT 4DEGC

H20 DENSITY

CALIBRATION

TEMPERATURE

METHOD

DENS EXTRACT

FLOWING

Z-FACTOR

REFERENCE

REDIALS

NUMBER OF

CALL OUT NO

CALL ON

CALL OUT

These functions will only appear with appropriate

settings in other functions.

CALL OUT DAY

MODEM AUTO

HANGUP IF

2MIN. INACTIVE

ERROR/ALARM

TIME

OF WEEK

ANSWER

ITEMS

PRINT LIST

IF PRINT

CLEAR TOTAL

BATCH

PRINT END OF

TIME

MAX. DRAIN

TIMEOUT

FLOW SIGNAL

TIME DELAY

DEFAULT

TEMPERATURE

DEC PLACES

TEMPERATURE

SCALE

TEMPERATURE

SETUP MENUS

RESTART

AUTO BATCH

COMP.

BATCH

OVERRUN

PRESET

MAX. BATCH

DENSITY

DEFAULT

AVERAGE

PLACES

DENSITY DEC

MASS UNITS

DENSITY

TOTAL DEC

VOLUME UNITS

DESCRIPTOR

PLACES

MAX WINDOW K-FACTOR

INPUT

LOW PASS

PULSE

TOT LIMIT

HIGH TEMP

KA-FACTOR

TYPE

TOT LIMIT

LOW TEMP

OFFSET

TEMPERATURE

SCALE

AUX FULL

TERMINATION

FILTER

SCALE

AUX LOW

RANGE

CURRENT

TRIGGER TYPE

ALARM

AUX HIGH

ALARM

AUX LOW

SCALE

AUX FULL

SCALE

AUX LOW

RANGE

CURRENT

RANGE

VOLTAGE

PRESSURE

REFERENCE

COEF. B

VISCOSITY

COEF. A

VISCOSITY

FACTOR

EXPANSION

TEMPERATURE

DAMPING

ANALOG OUT

FULL SCALE

ANALOG OUT

LOW SCALE

ANALOG OUT

RANGE

ANALOG OUT

RELAY

HYSTERESIS

RELAY

SETPOINT

RELAY MODE

RELAY

DURATION

RELAY

DELAY

CHANNEL

ASSIGN AUX

CONTROL

INPUT 3 USAGE

CONTROL

INPUT 2 USAGE

ENTER DATE

TIME OF DAY

SELECT

CLOCK AM/PM

MASTER

MODEM INIT

MODEM

OPTIONS

FEED

PARITY HANDSHAKE DEVICE LINE

KEY

INTERVAL

ONLY

DISPLAY NEW

SENSOR SERIAL

UNIT SERIAL

PRODUCT

SOFTWARE

SUPERVISOR

ENABLE PRINT

PRINT TIME

DATALOG

PAGE LENGTH TOP MARGIN

ERROR ONLY

NUMBER

ORDER CODE

PARITY

VERSION

PASSWORD

BAUD RATE

MODE

BATCH COUNT

TYPE

INSTRUMENT

EQUATION

SELECT FLOW

MEDIUM

CHOOSE FLUID

TYPE

INSTRUMENT

START HERE

SELECT FLOW EQUATION

TOTAL

DESCRIPTOR

SETUP

INDICATORS

SETUP INDICATORS

TYPE

AUX2 SIGNAL

TYPE

AUX2 INPUT

SETUP AUX2 INPUT

TYPE

AUX1 SIGNAL

PULSE INPUT

VOLTAGE

AUX1 INPUT

EXCITATION

SETUP AUX1 INPUT

SETUP FLOW INPUT

FLOW TYPE

USAGE

ANALOG OUT

SETUP

ANALOG

OUPUT USAGE

RELAY USAGE

RELAYS

PULSE WIDTH PULSE VALUE

FLUID NUMBER FLUID NAME REF. DENSITY REF.

PULSE OUPUT

SETUP RELAYS

SET FLUID PROPERTIES

SETUP PULSE OUTPUT

SETUP ANALOG OUTPUT

SETUP

1, 2, 3, 4

CONTROL

INPUT 1 USAGE

CONTROL

INPUTS 1, 2, 3

CLOCK TYPE

SETUP REAL

DEVICE ID BAUD RATE

SERIAL

TIME CLOCK

SERIAL USAGE

SETUP CONTROL INPUTS

SETUP REAL TIME CLOCK

HARDWARE

OUTPUT

FORMAT

SETUP

DATALOG/

TAG NUMBER OPERATOR

SETUP

DATALOG/PRINT

ADMINISTRATIVE SETUP

DEVICE ID

NETWORK

PASSWORD

SELECT

NETWORK

PROTOCOL

SETUP NETWORK CARD

Liquid Controls SP3850 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual