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Flowmetrics 913 DRT, Инструкция по установке и эксплуатации, Страница: 25 / 26

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23

PROBLEM

SOLUTIONS

POSSIBLE CAUSES

TROUBLESHOOTING GUIDE

Power is applied to unit but the display
does not light.

Unit works, but occasionally the display
freezes or skips counts.

Input signal is connected but the unit
does not count or display rate.

Rate is displaying: r FFFFF.

Relays are not activating properly.

Counter resets before reaching 999999.

1. AC or DC power wiring is incorrect.

1. Line noise is affecting the processor

due to a current spike or surge.

1. Input wiring is incorrect.
2. Scale factors are incorrect.
3. Transmitting device is defective.
4. Wrong debounce filtering selected.

1. The unit is trying to display a

number which it can't (too small or
too large).

2. Line noise affected unit on power

up.

1. Wrong relay duration.
2. Relay set for wrong activation

i.e. count instead of rate.

1. Relay duration is set at a value other

than 00.0.  This causes the counter
to auto-reset at the preset.

1. Recheck power wiring

1. Use a different power supply or

install a surge suppressor.

1. Recheck input wiring.
2. Recheck scale factors and factor

calculations.

3. Replace transmitting device.
4. Recheck debounce filtering selection

"hi cps" or "lo cps".

5. To confirm set scale factors at one

and connect a wire to pin #7 and
touch it to pin # 5 (input A).  Each
time pin #5 is touched counter A
should count once.  If not, call
factory for RMA. (this test will not
work on units with quadrature input)

1. Check scaling factor, if it is correct,

lower the number of significant
figures.

2. Reprogram the unit and be sure to

enter a decimal (enter one and re
move it if  a decimal is not desired).

1. Recheck programmed relay duration.
2. Recheck programmed relay

activation mode.

1. If relay outputs are not being used,

set the relays for rate.

2. Set the relay durations to 00.0.

Содержание 913 DRT

Страница 1: ...913 DRT DUAL RATE TOTALIZER INSTALLATION OPERATING INSTRUCTIONS 99827 08 27 01 ...

Страница 2: ...PROGRAMMING FLOW CHART 7 PROGRAM CODES DESCRIPTIONS 8 913 DRT TERMINATIONS 10 CALCULATING SCALE FACTORS 11 913 DRT PROGRAMMING PROCEDURE 12 SETTING SCALING FACTORS 12 SETTING THE COUNTER 13 SETTING THE RATE 14 SETTING THE LOCK CODE LOCKING THE UNIT 15 SETTING THE RELAYS PRESETS 16 OUTPUT WIRING 18 ANALOG OUTPUT OPTION 19 RS232 RS422 SERIAL COMMUNICATIONS 20 TROUBLESHOOTING GUIDE 23 WARRANTY 24 TAB...

Страница 3: ...convert the input pulses to engineering units The 5 digit K Factor dividers with decimal keyed into any position allow easy direct entry of any K Factor from 0 0001 to 99999 Separate factors may be entered for the 2 separate input channels CONTROL OUTPUTS Relays 2 each N O Relay 10 Amps120 240 VAC or 28 VDC N C relay contacts and NPN transistor output available with solder jumpers Transistor outpu...

Страница 4: ...ed out or the presets can remain accessible RATEMETER Accurate to 4 1 2 digits 1 display digit The ratemeter uses 1 tau with 8 digit math can sample from 2 to 24 seconds maximum and auto range up to 5 digits of significant information In the RPS mode the ratemeter displays in units per second and in the scale mode units per hour or per minute The unit will display the rate of the A B Inputs COUNTE...

Страница 5: ...ounted is less than 125 of an inch thick the possibility exists that there will be some flexing Should this flexing occur the resulting deformation of the panel could cause a loss of the water tight seal In case this should occur the use of silicone or other sealant would be recommended This product is designed to the NEMA 4 rated However the fact that we are unable to control either the location ...

Страница 6: ...ine noise The noise is carried on the input and D C ground lines Make sure the input wires are never run into the unit in a bundle with power input lines Also keep these input lines isolated from inductive lines from devices drawing heavy loads If there is a possibility of electrical noise we recommend using shielded cable with the shield being hooked to the D C ground terminal on the instrument a...

Страница 7: ...Ohms to ground The unit can be programmed from the front panel for slow switch closure inputs up to 40Hz select Lo CPS or solid state switches select hi CPS up to 9 99KHz No rear terminal jumpers are required Use PNP sourcing type pulsers 1 COMMON 2 N O N C NPN 3 COMMON 4 N O N C NPN 5 A INPUT 6 B INPUT 7 12 V OUTPUT DC INPUT 8 DC GROUND 9 RESET INPUT 10 NOT USED 11 AC INPUT 12 AC INPUT COUNT POWE...

Страница 8: ...O J1 C J2 O J3 C InputB J4 O J5 C J6 O J4 C J5 O J6 C The unit must be removed from the case to access jumpers C F all other jumpers can be accessed by removing the plastic extender NOTE All three pads at jumpers 2 and 4 are connected J4 J5 J6 J3 J1 J2 CR1 R3 C8 R7 R5 R4 U1 CR2 REV 20229 CR6 CR3 U3 P1 R10 R6 C6 C7 CR4 CR5 C4 R2 R1 C3 C5 U2 U4 U6 U5 R8 R9 C1 C2 C9 B FUNCTION A RELAY N C OUTPUT B RE...

Страница 9: ...tio E PRGM nor figur dly code lc all lc prg RST ENTER a tot a rate RST ENTER RUN MODE E PRGM E PRGM E PRGM E PRGM E PRGM E PRGM DP F b RST ENTER RST ENTER RST ENTER RST ENTER RST ENTER RST ENTER RST ENTER DP loc RST ENTER a addb asub b E PRGM rst al rst 1 E PRGM RST ENTER hi cps lo cps E PRGM rps scale E PRGM z 60 z 3600 E PRGM RST ENTER RST ENTER RST ENTER a b a a b E PRGM RST ENTER RST ENTER RST...

Страница 10: ...pulses from the A Input are added to the number of scaled pulses from the B Input a b A DIVIDED BY B The number of scaled pulses of input A are divided by the number of scaled pulses of input B X 100 to give the percent ratio of A B a a b A DIVIDED BY A PLUS B The number of scaled pulses of input A divided by A plus the number of scaled pulses of input B X 100 to give the percent ratio of A A B RS...

Страница 11: ...is is selected the user has a choice of having Preset A follow the A tot a or C tot c display tot a RELAY A FOR A TOTALIZER If selected the A output is activated by A 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 tot c RELAY A FOR C TOTALIZER If selected the A output is activated when C total is equal or greater then preset A a...

Страница 12: ... is programmed tot c RELAY B FOR C TOTALIZER If selected the B output is activated when C total is equal or greater then preset B and drops out when C total goes below preset B by selected 0 99 9 hysteresis b RATE RELAY B FOR RATE When this is selected output B will activate when the Rate of either display B or display C user selectable equals or exceeds preset B The relay will drop out when the s...

Страница 13: ...her so a sensor is placed at the roller sensing seven pulse per revolution of the shaft which equals 3 bottles per revolution To calculate the scale factor 7 ppr 3 bottles 2 3333 scale divider Set rate per second minute or hour as desired FLOW IN LITERS A flow meter is generating 52 6 pulses per gallon The desired readout is in liters Since there are 3 785 liters per gallon divide 52 6 by 3 785 to...

Страница 14: ... A To change press the arrow key under the digit s Press ENTER to enter the displayed value This sets the decimal for factor B Press the arrow key under the digit where the decimal is desired To clear the decimal press the arrow key fur thest to the right PRGM This is the scaling factor for input B To change press the arrow key under the digit s Press ENTER to enter the displayed value DISPLAY fac...

Страница 15: ...key to enter the displayed choice This section will only appear if RATIO is selected Choose A B or A A B Press the ENTER key to enter the displayed choice Press the PRGM key to choose RESETALL resettingA B Cdisplays or RESET 1 resetting a choice of either A or B display Press the ENTER key to enter the displayed choice Press the PRGM key to choose RESET A or RESET B Press the ENTER key to enter th...

Страница 16: ...arrow keys under the de sired digits to change Press ENTER to enter displayed value This sets the number of significant figures to be displayed Press the arrow key un der the digit to change Press ENTER to enter displayed value This sets the delay time 2 to 24 sec that the unit will look for valid input data be fore the display falls to 0 Press the arrow key under the digits to change Press EN TER...

Страница 17: ...isplay will show the existing lock code To change the code press the key under each digit to be changed Press ENTER to enter displayed value When in the run mode press LOCK After CODE goes out key in the lock code see programming step 4 by pressing the keys under the digits to be changed Press the ENTER key to enter the displayed code After the code is entered the unit will display LOC unit is loc...

Страница 18: ... tot is se lected Press the PRG button to choose tot a or tot c Press the ENTER key to enter the displayed choice Set relay duration 1 to 99 9 sec Counter autoresets and relay is energized for selected time If 00 0 is selected counter does not autoreset Output is active if counter is equal or above preset This is the hysteresis setpoint for relay A 00 0 to 99 9 This section will only appear if tot...

Страница 19: ...e b or rate c hy SETTING THE PRESETS 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 se lected Press the PRG button to choose tot b or tot c Press the ENTER key to enter the displayed choice Follow same procedures as A This is the hysteresis setpoint for relay ...

Страница 20: ...NPUT 6 B INPUT 7 12VDC OUT DC IN 8 DC GROUND 9 RESET INPUT 10 NOT USED 11 A C INPUT 12 A C INPUT RELAYS A B 13 V 14 I SINK ANALOG OUTPUT ON CAL 0 20mA COUNT SET OFF RUN 4 20mA RATE RUN 1 2 3 4 ON SWITCH D08P Prox Sensor BLK BRN BLU ALARMS The relays can be used to trigger alarms which warn the operator that a batch is complete or the rate has exceeded a set speed The outputs are programmable to be...

Страница 21: ...buttons A through E to step to desired value and press ENTER Return switch 1 to OFF down position PRE A and PRE B buttons now function to view or change relay trip values SWITCH 2 Select Count or Rate SW2 OFF down Analog output follows C rate SW2 ON up Analog output follows C count SWITCH 3 Select 4 20mA or 0 20mA SW3 OFF down Selects 4 20mA output range SW3 ON up Selects 0 20mA output range SWITC...

Страница 22: ... if the transmission is correct When setting the parity you may select ODD parity bit is logic 0 if total number of logic 1 s in the first seven data bits is odd EVEN parity bit is logic 0 if total number of logic 1 s in the first seven data bits is even MARK parity bit is always logic 1 High Mark or SPACE parity bit is always logic 0 Low Space If a MARK parity is chosen it will appear that two st...

Страница 23: ... TheinputimpedanceofRS232is3KΩto7KΩworstcase The terminal addressing the unit must be capable of driving all loads in the loop The input impedance of RS422 is much higher and there should be no problem driving as many as 99 units The transmit line remains in a high impedance off state until addressed Only one unit is to be on line at a time More than one unit on line could damage the unit or destr...

Страница 24: ...A PIN 2 GROUND PIN 5 RS 422 TRANSMIT B PIN 7 STROBE PIN 6 12V PIN 7 BOTTOM BOARD A RST B C D E ENTER LOCK PRE A PRE B VIEW PRGM TRANSMIT PIN 2 GROUND PIN 5 RS 232 STROBE PIN 6 12V PIN 7 BOTTOM BOARD RS232 RS422 WIRING 1 2 3 4 5 6 7 8 9 RS 232 1 INITIALIZE 2 TRANSMIT 3 RECEIVE 4 N C 5 GROUND 6 STROBE 7 N C 8 N C 9 N C RS 422 1 INITIALIZE 2 TRANSMIT A 3 RECEIVE A 4 N C 5 GROUND 6 STROBE 7 TRANSMIT B...

Страница 25: ...i e count instead of rate 1 Relay duration is set at a value other than 00 0 This causes the counter to auto reset at the preset 1 Recheck power wiring 1 Use a different power supply or install a surge suppressor 1 Recheck input wiring 2 Recheck scale factors and factor calculations 3 Replace transmitting device 4 Recheck debounce filtering selection hi cps or lo cps 5 To confirm set scale factors...

Страница 26: ...rranty is limited to repair or replacement of the defective unit at the option of the manufacturer This warranty is void if the product has been altered misused dismantled or otherwise abused ALL OTHER WARRANTIES EXPRESSED OR IMPLIED ARE EXCLUDED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ...

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