TABLE OF CONTENTS SPECIFICATIONS .................................................................................................. 1 DECODING PART NUMBER .................................................................................. 2 HOW TO MOUNT THE UNIT .................................................................................. 3 WIRING..................................................................................................................... 4 TYPICAL HOOKUPS ......................
DESCRIPTION & SPECIFICATIONS DESCRIPTION: The Dual Rate Totalizer is a dual 5 digit Ratemeter 6 digit Totalizer in a 1/8 DIN package. User selects 1 of 6 displays to show A,B or C rate and A,B or C total. Inputs A and B have separate scaling to read in engineering units. A 4-20mA (0-20mA) output of the C rate or total is optional. The user can press the VIEW button to see 6 separate items total A, total B, total C, rate A, rate B, rate C. Negative values are displayed with a negative symbol ( - 12345 ).
SPECIFICATIONS (continued) DECODING PART NUMBER LOCKOUT Unauthorized front panel changes can be prevented by entering a user selected 5 digit code. The front panel can be completely locked out or the presets can remain accessible. Example: SP2200 A 3 Series: 6 digits counter, 5 digit ratemeter with presets and scaling. RATEMETER Accurate to 4 1/2 digits (±1 display digit).
HOW TO MOUNT THE UNIT The unit is designed to be mounted with a gasket providing a water tight seal. Two mounting brackets are provided to secure the unit to the panel. A panel less than .1" may distort if the clamps are screwed too tightly. Slide the body of the unit through the rubber gasket. Insert the unit into the panel. As shown in "FIG. A", slide the brackets up the groove to press against the back of the panel. Insert screws into rear of brackets and tighten them evenly and alternately.
WIRING THE SP2200 The rear terminal contains 12 screw terminals for connecting #14 to #28 gauge wire. The unit is controlled by a microprocessor and, therefore, an electrically "noisy" environment could cause operating problems. The input power line should not be common to power lines for motors, pumps, contactors, etc. The unit is designed to be immune from line or RF voltage interference. In some environments voltage spikes of over 100 volts, even 1000 volts, can occur.
CONNECTING AC / DC POWER NOTE: Connect power only after other connections are finished. Do not touch the live AC power terminals! The unit has been designed with an isolated AC input. Thus, polarity is not a concern for the AC input. The chassis is plastic, therefore earth ground is not used. For D.C. operation, connect + 12V to pin 7 and - D.C. to pin 8. CONNECTING SENSOR INPUTS These diagrams show how to hook typical input sensors to the unit.
SELECTABLE COMBINATIONS A ADD B A SUB B A/B A/A+B - Scaled A input added to the Scaled B input. Scaled A input subtracted by the Scaled B input. Scaled A input divided by the Scaled B input X 100 to show percent of A to B. Scaled A input divided by the Scaled A input plus the scaled B input X 100 to show percent of A plus B. WHAT CAN YOU VIEW? By pressing the VIEW button one time the user can veiw the active display.
OPERATING THE FRONT PANEL 14235 RST A ENTER LOCK Press to "reset" in operating mode. Press to "enter" in programming mode. Press to enter lock code for panel lock. B D E VIEW PRGM C PRE A PRE B Press to view or change preset A. Press to view or change preset B. Press to cycle through PROGRAM choices. Press to toggle between choices in program mode. Press to alternately view A,B,or C Rate / Total displays. PROGRAMMING FLOWCHART Press this key to step through menu choices.
The following is a list of abbreviations as they appear on the display and front panel of the unit. ABBREVIATION DESCRIPTION FACTOR SCALING FACTOR - For A and B Inputs. Each input has a separate 5 digit dividing scale factor. DP F A DECIMAL POINT FOR FACTOR A - Enter location of decimal point for scaling Factor A by pressing the button under the digit where the decimal is desired.
Z 3600 DIVIDE K FACTOR BY 3600 - This sets the unit for rate per hour; equal to 3600 times rate per second. NOR## NORMALIZING FACTOR - Normalizes (averages) the data being received. Higher settings provide more normalizing (averaging) for a more stable display. Derived from the equation: (Old Data x "NOR" + New Data) ("NOR" + 1) SIGNIFICANT FIGURE - This sets the amount (1-5) of meaningful figures the unit will display. (RATE DIS PLAY ONLY). FOR EXAMPLE: If "2" is set as the figure, a rate of 273.
b TOT RELAY B FOR TOTALIZER - When this is selected, the user has a choice of having Preset B follow the B (tot B) or C (tot c) display. tot b RELAY B FOR B TOTALIZER - If selected, the B output is activated by B total and user can select auto recycle with duration of 00.1 to 99.9 sec or latched till reset if 00.0 is programmed.
CALCULATING SCALE FACTORS There are two separate dividing scale factors, one for input "A" and one for input "B". The factor to enter is the number of pulses per the desired unit of measurement. The factor ranges from 0.0001 to 99999. The factor is the same for rate and count. Because the "units per second", "minute", or "hour" are field programmable from the keypad, scale factor calculations for the ratemeter are easy.
PROGRAMMING STEP 1 SETTING SCALING FACTORS PRESS PRGM REMARKS This section of the menu is used to set up the scaling factors for inputs A & B. DISPLAY factor This sets the decimal for factor A. Press the arrow key under the digit where the decimal is desired. To clear the decimal, press the arrow key furthest to the right (PRGM) . dp f a ENTER This is the scaling factor for input A. To change, press the arrow key under the digit(s). Press ENTER to enter the displayed value.
PRESS PRGM STEP 2 SETTING THE COUNTER PRGM DISPLAY REMARKS factor This section of the menu sets up the counter and combination “C” information. count dp loc This sets the decimal location for the A,B&C counters. Press the arrow key under the desired digit location. To clear the decimal, press the arrow key furthest to the right. Press the ENTER key to enter the displayed location. ENTER total or ratio Press the program key to choose Total or Ratio.
PRESS STEP 3 SETTING THE RATE PRGM PRGM DISPLAY REMARKS factor count rate This section of the menu is used to set up the rate information. ENTER rps or scale Press the PRGM key to choose RPS (rate per second) or SCALE (RPM, RPH). Press ENTER to enter displayed choice. ENTER z 60 or z 3600 Press PRGM to choose ÷60 (RPM) or ÷3600 (RPH). Press ENTER to enter displayed choice. PRGM nor ## ENTER figur # ENTER ENTER dly #.# This sets the normalizing (averaging) factor.
STEP 4 SETTING LOCK PRESS DISPLAY PRGM factor PRGM PRGM count rate loc This section of the menu is used to set up the lockout type and code. LC PG or LC ALL LC PG = Locks program but presets and reset are accessible. LC ALL= Locks entire keypad. Press the PRGM button to toggle between choices; Press ENTER to enter displayed choice. CoDE Flashes followed by: ##### After CODE flashes the display will show the existing lock code. To change the code press the key under each digit to be changed.
PRESS PRGM DISPLAY REMARKS factor count STEP 5 SETTING THE RELAYS PRGM rate PRGM loc PRGM relay This section sets up the relay information. PRGM ENTER ENTER a tot or a rate Press the PRGM key to choose A TOT (A relay assigned to total) or A RATE (A relay assigned to rate). Press enter when the desired choice is displayed. tot a or tot c This section will only appear if a tot is selected. Press the PRG button to choose tot a or tot c. Press the ENTER key to enter the displayed choice du ##.
ENTER ENTER b tot or b rate tot b or tot b Press the PRGM key to choose B TOT (B relay assigned to total) or B RATE (B relay assigned to rate). Press enter when the desired choice is displayed. This section will only appear if b tot is selected. Press the PRG button to choose tot b or tot c. Press the ENTER key to enter the displayed choice du ##.# Follow same procedures as A ##.# hy ##.# This is the hysteresis setpoint for relay A (00.0 to 99.9). This section will only appear if tot c is selected.
OUTPUT WIRING The following diagrams detail the connection of the relay and analog output options. Each relay consist of a form A contact (Normally Open). NPN transistor or Normally Closed contacts are available with solder jumpers (see Jumper Options). SOLENOID (Single Stage) Use Relay A (pins 1 & 2) for single stage preset. When the count or rate (selectable) reaches Preset A, Relay A will energize. When Relay A closes, current passes through the solenoid for activation.
ANALOG OUTPUT OPTION Description: An optional 4-20mA (0-20mA) output has been added to the unit. The output can be programmed to track C rate or C total. This feature is available by adding suffix A to the part number. Connections are via a 2 terminal pluggable screw connector. SWITCH 4: Calibrate (normally off) Switch 4 is used for calibration. Calibration is done at the factory and should not be needed (see SWITCH 1 to enter high and low values).
INTERFACE CARD RS 232/422 OPERATION RS 232/422 SET-UP: All serial communication mode changes must be done through serial communications. Mode changes cannot be done through the front panel. To initialize the unit, place a jumper between pin 7(+12V )[bottom board] and pin 1(init) [DB -9 connector] on initial power up. The unit defaults to: 300 baud rate,"MARK" parity and device number 01. To enter the program mode you must set your terminal for 300 baud rate and "MARK" parity.
SERIAL INPUT COMMANDS: To get a unit on line you must address it by it's device number. This is done by typing DXX(S), XX= device number. The unit comes on line and echoes back DEVICE# XX. Insure that "DEVICE# XX:" is received before requests are sent. The unit is now ready to receive a command or string of commands separated by a space. A carriage return (enter) will enter the commands and processing of requests begins. The carriage return (Hex Code "D") puts the unit "off line" after data is processed.
RS232 / RS422 WIRING COMPUTER HOOKUP: RS 232: When connecting the unit to a computer with RS 232 communication, only three connections are needed. These connections are: Receive data, Transmit data and Ground.
TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSES Power is applied to unit but the display does not light. 1. AC or DC power wiring is incorrect. 1. Recheck power wiring Unit works, but occasionally the display freezes or skips counts. 1. Line noise is affecting the processor due to a current spike or surge. 1. Use a different power supply or install a surge suppressor. Input signal is connected but the unit does not count or display rate. 1. 2. 3. 4. 1. Recheck input wiring. 2.
