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RM4-TR manual - Amalgamated Instrument Co Pty Ltd

1. Page 11 of 40 NPN TRANSISTOR TERMINAL FREQ Link LK1 Gf ULM UE BIAS Link LK2 in 8 DC LinkLK3 in HYST Link LK4 in or out HYST2 Link LK5 in or out s GND Link LK6 out i vey 9 LOW FREQ Link LK7 out m het Link LK8 out a UR oe da VCC Link LK9 in as eae RTE TREE Input link settings section 3 10 Note the transducer may require an external DC supply This may be provided from a remote power Source by a DC output on terminal 7 or optional DOPO ey 22 isolated DC supply see Transducer power supply NERPTEANSIBTOR FE 3 wire NPN transistor sensor 000 f TERMINAL Internal Link see AE BIAS Link LK2 20 DC Link LK3 in ne HYST Link LK4 in or out p Ogee eer HYST2 Link LK5 in or out OUT 8 Qo GND Link LK6 out RAE m LOW FREQ Link LK7 out ce ye Link LK8 out 5 22 VCC Link LK9 in lt 9 See Input link settings section 3 10 i 10 Note the transducer may require an external DC Du X supply This may be provided from a remote power source by a DC output on terminal 7 or optional isolated DC supply see Transducer power supply V via terminal 7 PNP transistor sensor PR TRANSISTOR or TERMINAL Typical Internal Link Settings a a sae EXT V FREQ Link LK1
2. 22 Totaliser Explanation of Functions 24 Examples ALPE Y det Nena Dos aot E ALS 27 Totaliser Function Table 30 Both Mode o xo oo ee E RI TIE a YQ 32 Both Mode Function 32 Alarm relays 5 uror ooo OT ace cut gear BAR go doe a OE d 35 Easy Alarm ACCESS ues Ow ae ee Wo UE TRU EV eng on 37 SPECIFICATIONS Fh EX eeu Deo ed Tei de We 38 Technical 5 38 Output ODIIOIIS seni tutu pn ter E e Sad 38 Physical 5 38 Guarantee and Service 39 28D04 Page 2 of 40 RM4TRMAN 1 1 1 1 Introduction This manual contains information for the installation and operation of the RM4 TR Monitor The instrument may be set to operate as a ratemeter or totaliser or allow toggling between rate and total displays The SEE GPEF function allows selection of one of these three modes A brief description of each mode is given below The three modes of operation are 1 EotL totaliser counter display The input pulses are totalised scaled in engineering units and displayed e g a display showing Total litres mm etc Count up or count down operation is possible via the SET electric
3. FRSE set to F with FASE UPdt set to GFF the relay and analog retransmission updates will take place approximately twice per second With FRSE UPdt set to an the relay and analog retransmission updates will take place approximately six times per second EdSE Input edge triggering displays and sets the input edge on which the instrument will trigger Select FRLL for triggering on a falling edge Select SE for triggering on a rising edge di SP Period or rate display when using the low frequency range the user has the option of displaying either the rate of the input or the period of the input Select Rt E fora rate display in Hz Select PE x d for a period display display format is determined by the display range function d SP and the decimal point setting Page 16 of 40 RM4TRMAN 1 1 1 di 5P Period display range Sets the display range when PEF d is chosen as the default display at the d SP function FF E FRYE must also be set to LaF to see this function The options 8 9 8 tor 8 28 82 The 8 option allows a display in milli seconds The 8 8 4 option allows a display in minutes and seconds and the 8 58 82 option allows a display in hours mins secs The display units and scaling will now depend on the PEF d dC PE PET d and PEF d SELE settings e g the display can be scaled to give a reading which is ten times the real period if req
4. totaliser display For example selecting G will mean no decimal points e g 25 8 means 1 decimal point place e g 25 4 8 02 gives 2 decimal point places e g 25 35 etc The maximum number of decimal point places is one less than the number of digits on the display e g a 4 digit display can have 3 decimal points a 5 digit display can have 4 decimal points etc Note If the number of decimal point is altered then the display scaling figure tat SCLE will also be affected Always check the scaling figure following a decimal point change and alter as required bce Totaliser input pulse count displays and sets the number of input pulses to be used with the total scale function to generate the display scaling See examples which follow Eat Totaliser scale factor displays and sets the scale factor for totaliser Scale and input EL work together as follows m Old Total Input pulses counted x SEL New Total LOL Page 25 of 40 RM4TRMAN 1 1 1 kok Grand total operating mode by using the or pushbutton the display may be toggled between a total or a grand total display or between rate total and grand total in both mode The display will briefly show either REE Eat S Eat to indicate what the following total display is showing To reset the grand total the remote input must be se
5. 1M VCC LK4 33K2 HYSTERESIS 10K VCC 5V 10uF I LK9 hu VCC PULL UP GND PULL DOWN 5V6 LK3 DC COUPLING 5V6 10 5V VCC LK8 O 1000nF FREQ VCC 5V TO MAIN PCB CIRCUIT_MODIFICATION REQUIRED IF AC LINK IS USED 10n Important only one of these links LK10 or LK11 should be fitted For 24V supply on terminal 7 both LK10 and LK11 should be out and LK16 and LK17 on the main pcb should be in VCC LK11 5VEX Q 5V REGULATED LK10 KEY3 SET INPUT GROUND INPUT SET or SENSOR V RESET REMOTE INPUT OPTIONAL INPUT TOP TERMINAL CONNECTOR REMOTE IN Page 9 of 40 RM4TRMAN 1 1 1 3 8 Signal input connections INDUCTIVE SENSOR TERMINAL USD AD 8 8 rd 1 2 9 E ERIS LO Pe pe AC MEASUREMENT TERMINAL 7 23 5 M UNE ME f i M 1 1 ES i 7 i Q Yo 1 2 by 7 SQUARE WAVE INPUT TERMINAL 81 1 1 se CONTACT CLOSURE TERMINAL 3 8 E FEN d L Y LU Y N 2 4 BROWN BLUE 1 5 5 g RESISTOR E Page 10 of 40 Inductive Sensor 48V RMS Max Typical Internal Link Settings FREQ Link LK1 BIAS Link LK2 DC
6. 1 2 then the easy access will work only with alarm relays 1 and 2 even if more relays are fitted 4 The instrument must be in normal measure mode i e if the instrument is powered up so that it is in CAL mode then the easy access will not function If in doubt then remove power from the instrument wait for a few seconds then apply power again 5 If the easy access facility is used then the only way to view or alter any other function settings is to power up via AL mode i e there is no entry mode unless the instrument is powered up in CAL mode Optional relays Two alarm relays are fitted as standard One or two extra relays are optionally available See appropriate appendix in this manual for details of optional relays Switching Inductive Loads If the alarm relay is to be used to switch an inductive load such as a solenoid it is advisable to use a suppressor circuit either across the load or across the relay contacts Switching inductive loads without a suppressor circuit can cause arcing at the relay contacts resulting in electrical interference and wear on the contacts A typical suppressor circuit consists of a 100Qresistor in series with a 0 1uF capacitor this circuit is then placed across the load or relay contacts Ensure that the resistor and capacitor are of sufficiently high rating to cope with the voltage and current encountered Page 38 of 40 RM4TRMAN 1 1 1 10 Specifications 10 1 Technical Specifications
7. Count rate input Totaliser functions Ratemeter functions Accuracy Impedance Max count rate Memory retention Totaliser reset Microprocessor Ambient temperature Humidity Display Power Supply Power consumption Output standard 10 2 Output Options Third Relay Fourth Relay Switched Voltage Analog Retransmission Serial Communications Transmitter supply Link selectable internal pull up resistor internal pull down resistor biassed input DC couple and 2V added hysteresis For inductive AC and square wave inputs the maximum input voltage is 48VDC or RMS with appropriate link settings Scaleable up or down counter Total and grand total memory Scaleable rate or period display For frequency or period measurement 0 01 1005 10KQ 100kHz Total grand total memory retained for a minimum of forty days with power removed Total reset via contact closure or 5V control voltage across terminals 5 amp 9 Grand total reset via contact closure across terminals 6 amp 9 Note function must be set to 8 7 St if grand total reset operation is required MC68HC11 CMOS 10 to 60 5 to 95 non condensing LED 5 digit 7 6mm alarm annunciator LEDs AC 240 110V 24V or 32V 50 60Hz DC 12 to 48V wide range AC supply 4 VA max DC supply consult supplier depends on options fitted 2 x relays form A rated 5A resistive 240 5V or 24VDC unregulated transmitter supply common g
8. Link HYST Link LK4 HYST2 Link LK5 GND Link LK6 LOW FREQ Link LK7 AC Link LK8 Link LK9 See Input link settings section 3 10 AC Measurement 48V RMS Max Typical Internal Link Settings FREQ Link LK1 BIAS Link LK2 DC Link LK3 HYST Link LK4 HYST2 Link LK5 GND Link LK6 LOW FREQ Link LK7 AC Link LK8 Link LK9 See Input link settings section 3 10 Square wave 48V Max Typical Internal Link Settings FREQ Link LK1 BIAS Link LK2 DC Link HYST Link LK4 HYST2 Link LK5 GND Link LK6 LOW FREQ Link LK7 AC Link LK8 VCC Link LK9 See Input link settings section 3 10 Voltage free contact Typical Internal Link Settings FREQ Link LK1 BIAS Link LK2 DC Link LK3 HYST Link LK4 HYST2 Link LK5 GND Link LK6 LOW FREQ Link LK7 AC Link LK8 VCC Link LK9 See Input link settings section 3 10 Namur sensor Typical Internal Link Settings FREQ Link LK1 BIAS Link LK2 DC Link LK3 HYST Link LK4 HYST2 Link LK5 GND Link LK6 LOW FREQ Link LK7 AC Link LK8 VCC Link LK9 See Input link settings section 3 10 in or out out in in or out in or out in or out out out out in or out out in or out in or out in or out in or out out out out out in or out in in or out in or out in or out out out out RM4TRMAN 1 1 1 NPN transistor sensor Typical Internal Link Settings
9. calibration should be carried out to determine the correct scaling for any installation where accuracy is required Page 21 of 40 RM4TRMAN 1 1 1 Example period display in rate mode If Lo is selected at the FARSE function then there is an option to display either the period or frequency of the incoming pulses At the d SP function select the PEF d option to display period For example a display showing seconds to two decimal places seconds and hundredths of seconds is required for the input The settings required for this display are 1 PEF d dC PE set to 8 0 2 PET d setto 1888 one thousand milli seconds i e 1 second 3 PET d SELE setto 4 00 i e every one thousand milli seconds will cause a display of 4 88 4 FT ES FARSE setto LaF 5 d SP set to PEF d 6 d SP FRSE set to B T t out SEL 5settoa value higher than the lowest input period e g if the lowest input period is going to be 10 seconds the amp quw amp SEES function could be set to 15 seconds In the example above the display could be changed to show minutes seconds amp hundredths of seconds by changing the d SP FAYE function to 8 8 1 Example wind speed display in rate mode Model WS30 wind speed sensor sends 1250 pulses per kilometer To display in kilometers per hour the settings required are PEF d 125 PEF d SELE 360 To display in metres per second PEF d 125 PEF d SELE 100 Model WS03002 wind speed senso
10. display brightness 15 highest brightness is Remote input brightness control Gio n 45 highest brightness d oFF SEC S Display auto dimming timer 9999 B seconds Functions below are accessible only via CA mode ED Analog retransmission low value Value in memory 8 Analog retransmission high value Value in memory rEC Che Analog retransmission 2 low value Value in memory 8 Che Analog retransmission 2 high value Value in memory de nd Display rounding selects Value in memory E resolution Fier Digital filter range 0 to 8 Ho 8 e 8 2 most filtering Decimal point setting for rate dC PE or display or decimal point setting for gt PErddCPt period depending upon the valueinmemory s d SP setting Rate input setting Hz or Period input setting S Value in memory t depending upon the d SP setting Rate scale setting or Period scale SCLE or PE dSEL setting dec o the d SP Value in memory Page 33 of 40 RM4TRMAN 1 1 1 Default Record Your Initial displa Meaning of displa Next displa Play 9 Play Setting Settings Lot dt PE Decimal point Setting for totaliser Value in memory B display tot Totaliser input setting Value in memory i tot SELE Totaliser scale setting Value in memory i Grand
11. in Page 28 of 40 RM4TRMAN 1 1 1 kilolitres Since we require 3 decimal places only then multiplying both figures by 1000 will give the same scaling result and figures of kot 9 1000 and tat SELE 0 215 It is the ratio between Eat 9 Eat SELE which determines the scaling factor and so there are many input and scale figures which are equally valid e g tat 100000 and tat SELE 21 5 would give the same display scaling as would tot 4651 and Eat SELE 1 The table below shows approximate Rota pulse scaling figures for typical pipe diameters Pipe diameter Litres Kilolitres or cubic metres 25mm tot 74316 tot 74316 tot SCLE 1000 tot SCLE 1 40mm tot 29029 tot 29029 SCLE 1000 tot SECLE 1 50mm tot 18579 tot 18579 tot SCLE 1000 tot SECLE 1 SON tot 7257 tot 7257 tot SCLE 1000 tot 5CLE 1 100mm tot 4645 tot 4645 tot SCLE 1000 tot SECLE 1 150mm tot 2064 tot 2064 tot SCLE 1000 tot 5CLE 1 The scaling factors above are approximate and will vary depending on pipe size and installation conditions A calibration should be carried out to determine the correct scaling for any installation where accuracy is required Examples Item counting For applications in which items ar
12. in this manual to confirm proper selection of voltage polarity and input type before applying power to the instrument When power is applied the instrument will cycle through a display sequence indicating the software version and other status information this indicates that the instrument is functioning Acknowledgement of correct operation may be obtained by applying an appropriate input to the instrument and observing the resultant reading Reset Remote input Optional outputs see separate options booklet if options are fitted oF 5 or 24V transmitter supply unregulated or SET Input GND oooooooOO00 123456789 2 3 4 AMALGAMATED INSTRUMENT CO ABCDEFG A RELAY 1 COM B RELAY 1 NO 2 C RELAY2 3 D RELAY2 NO 4 E MAINS EARTH 5 REMOTE INPUT 240VAC NEUTRAL RESET 6 240VAC ACTIVE 7 TRANSMITTER SUPPLY 8 INPUT 9 GND RM4 TR 240 5E SERIAL No Instrument data label example Active DC Neutral DC Relay 2 Earth Relay 1 Page 7 of 40 RM4TRMAN 1 1 1 3 1 Power supply connections The power supply for the instrument is factory fitted and is of a fixed type If you are unsure of the supply requirementfor your instrument it can be determined by the model number on the instrument label RM4 TR 240 Requires 240VAC RM4 TR 110 Requires 110VAC RM4 TR 32 Requires 32VAC RM4 TR 24 Requires 24VAC RM4 TR DC Requires between 12 and 48
13. input chosen via the d SP function If PEF d is selected then the display will show the period or scaled period if required of the input pulse rather than the rate Functions specific to display with FRSE set to Lo F with a period display Period decimal Period Period Display mode Display Time out point input scale d SP set range seconds PErd SEL to PE d d SP E euE SECS 4 Averaged rate display With RUSE selected at the FRYE function the display will average the rate input over the number of seconds selected at the HU SE SEES function The display will only update at the end of the averaging period This mode allows the user to see a steady averaged display for an input which produces short term irregularities Page 13 of 40 RM4TRMAN 1 1 1 Functions specific to display with set to RUSE with an averaged rate display Rate decimal point FREE dC PE Rate input Rate scale Average seconds FREE REE SOLE RUSE SECS Function Description Alarm relay low setpoint see Alarm relays chapter Displays and sets each alarm low setpoint value Alarm relay high setpoint see Alarm relays chapter Displays and sets each alarm high setpoint value Alarm relay hysteresis deadband see Alarm relays chapter Displays and sets the alarm hysteresis limit This v
14. of 4 amp 2 6 Press the function tat SELE will appear followed by the previous scale value 7 Use the or push button to alter the previous scale value to the new scale value of 8 88 t 8 Press d to accept the change then either press 0 to exit or continue pressing and releasing 9 until the FUNE End message is seen and the display returns to normal measurement mode Page 29 of 40 RM4TRMAN 1 1 1 Example down counting A proximity sensor is counting objects on a conveyor belt When 2000 objects have passed the RM4 is to force its internal relay to open which will be used to de activate a solenoid and halt the conveyor The display is required to count down from the preset value of 2000 to zero The input and scale factors in this case will both be 1 since the display is simply counting objects Other settings needed in this example are some alarm settings the preset value the SET input mode and the counter reset value 1 Follow the procedure shown on page to enter the setup functions via CAL mode 2 The first function is 4 this will be seen followed by the previous low alarm setting 3 Use the or push button to change the A La setting to B Press 9 to accept the change 4 Step through the functions by pressing and releasing until the in a A function is seen 5 Use the or push button to change the setting to normally closed operation 6 Step through the functions
15. on or GFF GFF Default display rate total or period 1 d SP total depending upon the d SP Greene FREE setting Set operating mode Shree duoc or FF Eq 388 588 200 2400 TS Paue mie 4800 9500 4 20r38 4 598 Prey Parity select B Puk Output continuous or controlled s isse POLL bu5 Addr Set unit address for mode Gto 3 8 Note Functions shown shaded will be seen only if the appropriate option is fitted Page 34 of 40 RM4TRMAN 1 1 1 Settings for relays record settings here A1 A2 A4 RxP5 RxH AXHY Rxtt Rx t RXe c Rx 5PorRx t n a Rxc 5 Page 35 of 40 RM4TRMAN 1 1 1 9 Alarm relays The RM4 is provided with 2 alarm relays as standard One or two extra optional independent alarm relays may also be provided these relays are designated etc Each alarm has the following parameters which may be set by the user Low trip point adjustable in measurement units High trip point adjustable in measurement units Alarm hysteresis adjustable in measurement units Alarm trip time adjustable in one second steps Alarm reset time adjustable in one second steps N O or N C rel
16. out see note BIAS LinkLK2 in Link LK3 PEEL HYST Link LK4 in or out Oum HYST2 Link LK5 in or out 4 8 GND Link LK6 out E LOWFREQ LinkLK7 in A ca AC Link LK8 out MO Mee MM VCC Link LK9 out 9 See Input link settings section 3 10 LL Q Note the transducer may require an external DC FERMER supply This may be provided from a remote power source by a DC output on terminal 7 or optional isolated DC supply see Transducer power supply 3 wire PNP transistor sensor Typical Internal Link Settings PNP TRANSISTOR via terminal 7 FREQ Link LK1 out 3 WIRE or TERMINAL BIAS Link LK2 in MISERE EXT V DC Link LK3 in 1 see note 2 HYST Link LK4 in or out HYST2 Link LK5 in or out caecus en eaan ST GND Link LK6 in OUT T LOW FREQ Link LK7 out Ce T AC LinkLK8 out ED Link LK9 out EM See Input link settings section 3 10 9 Note the transducer may require an external DC J supply This may be provided from a remote power Ic ee source by a DC output on terminal 7 or optional isolated DC supply see Transducer power supply RM4TRMAN 1 1 1 3 9 Configuring the input board Remove the circuit board from the case following the instructions below Remove the connectors the four front bezel screws and the earth screw at the side of the case Hold the front bezel and Slide out the circuit boards Link settin
17. 0Hz in electrically noisy environments when the maximum input frequency is less than approx 80Hz The GND link LK6 and VCC link LK9 should both be out when the input is greater than 24V RMS or 24VDC 48V 5 or 48VDC max with links removed HYST2 link LK5 should be in for signals greaterthan 1V HYST link LK4 should be in for signals greater than 5V For signals lower than 1V both links should be out 100mV minimum signal A maximum of one hysteresis link should be fitted The DC coupling link should be in for frequencies less than 10Hz The BIAS link LK2 should be in when input signal does not go below OV The FREQ link LK1 is used to create a sharply rising edge to give a more definite pulse signal and will be used mainly for input signals with slowly rising edges typically sinewave AC inputs and inductive inputs Page 12 of 40 RM4TRMAN 1 1 1 4 Ratemeter explanation of functions Ratemeter Frequency operation The description of functions in this chapter covers frequency rate functions only This mode is selected at the set operation GPEF function Remember that you will need to enter via AL or FUNE mode to gain access to functions the function table for each mode shows which functions require entry via CAL mode See Introduction chapter for details of how to enter FURE and CAL modes Frequency rate mode operation modes This mode is chosen by selecting F ES atthe SEE GPEF function The ratemeter
18. 580 then select 580 at this function via the or button Che Second analog recorder retransmission output low value seen only when the dual analog retransmission option is fitted See FEF function for description of operation Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Second analog recorder retransmission output high value seen only when the dual analog retransmission option is fitted See FEE function for description of operation Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted dre nd Display rounding displays and sets the display rounding value This value may be set to G 55820 displayed units Display rounding is useful for reducing the instrument resolution without loss of accuracy in applications where it is undesirable to display to a fine tolerance example if set to 0 the instrument will display only in multiples of 10 Digital filter displays and sets the digital filter value Digital filtering is used for reducing susceptibility to short term interference The digital filter range is selectable from amp to 8 where 8 and 8 most filtering A typical value for the digital filter would be 3 The digital filter uses a weighted averaging method of filtering which will increase the display update time at higher settings FREE dt Pt R
19. AMALGAMATED INSTRUMENT CO PTY LTD RM4 TR DIN Rail Mount Totaliser Ratemeter Process Monitor Controller Operation and Instruction Manual Unit 5 28 Leighton Place Hornsby Telephone 61 2 9476 2244 NSW 2077 AUSTRALIA Facsimile 61 2 9476 2902 ACN 001 589 439 e mail sales Qaicpl com au Internet www aicpl com au Table of Contents Introduction s a Ro RU 3 Entry to setup and scaling functions 3 DUIS e outputs de at ho odo 4 Mechanicalinstallation cnn 5 Electrical installation i ae xx CURE NE ORES 6 Power supply 7 Relay 7 Reset input 7 Count up down 7 Remote input 7 Equflow and Rotapulse wiring and link 5 7 CIRCUS a bots gen Memes dS Eod I oe dde Ies 8 Signal input connections 9 Configuring the input board 11 MK SellrgSuss os ed Ie on 11 Ratemeter explanation of functions 12 Examples E Ep EM 19 Elror MessagBS ere t Dare EAR 21 Ratemeter Function
20. E Beweti 4800 9500 9 2 or 38 4 BU Prey Parity select AGRE rr p G Put Output continuous or controlled D i TAE POLL Addr Set unit address for mode 8103 8 Functions shown shaded will be seen only if the appropriate option is fitted Page 31 of 40 RM4TRMAN 1 1 1 Settings for relays record settings here A1 A2 A4 RxP5 RxLo RxH AXHY Hxtt Axn o or 5 or Rx E n a Rx P5 Rx EL Page 32 of 40 RM4TRMAN 1 1 1 8 Both Mode When bath mode is selected at the SEE GPEF function the user has the option of toggling between the displays available in both totaliser and ratemeter modes This allows the meter to be used as a ratemeter totaliser When bath mode is used the functions available allow for both the ratemeter and totaliser scaling and setup If front panel pushbuttons are fitted to the display type being used then the and Md buttons can be used to toggle between totaliser and ratemeter displays Alternatively a remote input contact closure can be used across terminals 5 and 9 If these terminals are to be used to toggle between displays then the remote input function must be set to d SP Since the functions available in this mode are a combination of ratemeter and totaliser functions the ex
21. VDC 3 2 Relay connections The RM4 is supplied with two alarm relays as standard Relay 1 is connected across terminals A and B Relays 2 is connected across terminals C and D One or two extra relays are optionally available Relays 1 amp 2 are single pole single throw types form A and are rated at 5A 240VAC into a resistive load Relays 3 and 4 are form A rated 0 5A resistive or DC The relay contacts are voltage free and may be programmed for normally open or normally closed operation If only 3 relays are fitted and no other options are fitted then Relay 3 can be configured as form C 3 3 Reset input The reset input is between terminal 6 and terminal 9 A contact closure or open collector transistor input can be used to reset the total See the St function for details of the counter reset modes available In count up totaliser operation the display can be set to reset automatically when a total is reached see the enter 5t function for details The remote input see 3 5 below can be used to reset the grand total 1 Internal link settings required 3 4 Count up down operation KEYS pus EO The SET input may be used in up LK16 main circuit board 24V OUT count down count operation of the totaliser LK17 main circuit board 24V OUT count operation together Control of mode of operation is via the 5 3 SET anD with 5 2 function function and via the state of the SET input open
22. al input and is controlled by the 5 function A total and grand total may be viewed and reset separately The grand total is a separate total memory which adds together all the previous totals Explanation and examples of the totaliser functions are given in the Totaliser Explanation of Functions chapter 2 FT Ea frequency rate display The frequency or rate of the input may be scaled in engineering units and displayed e g a display showing R P M Bottles min Litres hour etc For low frequency inputs input always below 1 2 there is an option of displaying either rate or period Explanation and examples of the ratemeter functions are given in the Ratemeter Explanation of Functions chapter 3 bath total rate display display may be toggled to either total or rate This mode is primarily used when the display is required to toggle between a rate and total display via an external contact closure or via the front panel buttons only fitted on certain display options For low frequency inputs input always below 1 2 there is an option of toggling between rate total or rate period A total and grand total may be viewed and reset separately Note modes PEF d amp 5 Pr seen atthe GPEF function are not covered in this manual Two standard inbuilt relays provide alarm control functions A standard transmitter supply of 5VDC 24VDC link selectable unregulated is also provided on both AC and DC po
23. alue is common for both high and low setpoint values Alarm relay trip time see Alarm relays chapter Displays and sets the alarm trip time in seconds tenths of seconds This value is common for both alarm high and low setpoint values Hxc Alarm relay reset time see Alarm relays chapter Displays and sets the alarm reset time in seconds tenths of seconds This value is common for both alarm high and low setpoint values or Alarm relay normally open or normally closed see Alarm relays chapter Displays and sets the alarm relay action to normally open de energised or normally closed energised when no alarm condition is present Rx SP Alarm relay operation independent setpoint or trailing see Alarm relays chapter Bx t etc br Display brightness displays and sets the digital display brightness The display brightness is selectable from to 45 where lowest intensity and 15 highest intensity This function is useful for reducing glare in darkened areas Remote display brightness displays and sets the level for remote input brightness switching see Remote input functions chapter See also d aFF SEES function below d aFF Auto display dimming timer this function allows a time to be set after which the SECS display brightness set by the br St function will automatically be set to the level set at the duit function The auto dimming feature can be u
24. ate decimal point selection displays and sets the decimal point position for the rate display For example selecting 8 will mean no decimal points e g a display such as 25 0 1 means 1 decimal point place e g 25 4 8 82 gives 2 decimal point places e g 25 35 etc Note If the number of decimal points is altered then the display scaling figure FREE SCLE will also be affected Always check the scaling figure following a decimal point change and alter as required PErd dL Pt Period decimal point selection only seen when period display selected displays and sets the decimal point for the period display Note that the decimal point display is tied to the display range d 5 AYE function e g if the display range function is set to G G amp G2 then the two decimal place setting will show up as G GB Ge and one decimal place will show as 8 08 4 FREE PAPE Rate input scale factor displays and sets the number of input pulses to be used with the rate scale function to generate the display scaling See examples later in this chapter FREE SEL Rate scale factor displays and sets the scale factor to be used with the rate input setting See examples later in this chapter Scale and input work together as follows nput frequency Hz x FREE SELE Display FREE PEF d PAPE Period input scale factor displays and sets the period value to be used with the period scale function value to gener
25. ate the period display scaling See examples later in this chapter and the formula below Page 15 of 40 RM4TRMAN 1 1 1 Period scale factor only seen when period display selected displays and sets the scale factor to be used with the period input setting To calculate the display value the input frequency and hence the period of this input needs to be known Scale and input work together to produce a display as follows nput period milli seconds x d SELE PErdt Note the displayed value is also affected by the decimal point and display range settings Display Frequency range displays and sets the frequency input range Select Lo F if the input frequency is likely to be lower than 4Hz and not greater than 1kHz Select F for frequencies with a minimum input frequency of 3Hz or higher maximum input frequency is 100kHz Note that the period display in bat or FF ES modes will only be accessible when the frequency range is set to LaF and hence the input frequency must not be above 1kHz Select RUSE for an averaged display The averaged display allows the input rate to be averaged over a period of seconds set by the RUSE SEES function An averaged display is particularly useful when the input is irregular By averaging the pulses over a period of time the display will give a more stable reading for these irregular inputs FASE uPdt Fast update seen only when
26. ay operation Independent or trailing alarms available on relays 2 and upwards 8 Pass alarm mode totaliser operation only 0 8 WDD Note that the alarm settings are not changed when calibration scaling channels are changed The alarms operate in the following way If the measured value is above the High Trip Point or below the Low Trip Point the alarm trip timer starts This timer is reset if the measured value drops below the High Trip Point or above the Low Trip point When the alarm trip timer s time exceeds the Trip delay time the alarm is operated When the alarm has tripped the measured value is compared to the High Set Point less the Hysteresis value and the Low Set Point plus the Hysteresis value If itis less than the High Set Point less the Hysteresis value and greater than the Low Set Point plus the Hysteresis value the alarm is reset Alarm low setpoint a Displays and sets the low setpoint value for the designated alarm relay The low alarm setpoint may be disabled by pressing the and keypads simultaneously When the alarm is disabled the display will indicate GFF Use or M to adjust the setpoint value if required The alarm will activate when the displayed value is lower than the o setpoint value Each relay may be configured with both a low and high setpoint if required if so the relay will be activated when the display reading moves outside the band set between low and high setpoint
27. by pressing and releasing until the kat function followed by the previous input value is seen 7 Use the or Md push button to alter the previous input value to the new input value of t 8 Press the function tat SELE will appear followed by the previous scale value 9 Use the Z or M push button to alter the previous scale value to the new scale value of t 10 Step through the functions by pressing and releasing 3 until the PSE amp function is seen followed by the previous preset value Note If the display has a front panel 2 button then the function of this button can be programmed to allow fast access to the preset value without needing to enter CAL mode This facility can be useful if the preset value is likely to be changed regularly 11 Use the push button to change the setting to 2000 12 Step through the functions by pressing and releasing until the 5 function followed by the previous SET input mode is seen 13 Use the or push button to change the setting to t o This will force the instrument to count down 14 Step through the functions by pressing and releasing until the first St function followed by the previous reset value is seen 15 Use the or Rd push button to change the setting to P SEE This will force the instrument display to revert to the preset value whenever the display is reset 16 Press J to accept the change then either press t
28. ce the display value goes above 50 8 and will reset when the display value goes below 3 0 50 0 minus 3 0 In the low alarm mode once the alarm is d Page 36 of 40 RM4TRMAN 1 1 1 AXH 56s oe oe epee AxH value hysteresis or deadband Setpoint relay activates Setpoint relay resets activated the input must rise above the setpoint Display Val value plus the hysteresis value to reset the alarm e g if A iLaissetto 20 0 and A HM is set to 15 8 then the alarm output relay will activate when the display value falls below 28 8 and will Setpoint reset when the display value goes above 32 3 relay 20 0 plus 10 0 Setpoint relay The hysteresis units are expressed in activates displayed engineering units HxHM value w Rik MEI es hysteresis or deadband Time Alarm trip time Axt E The alarm trip time determines how long the measured value has to be above the high trip point or below the low trip point before an alarm is given This can be used to prevent false alarms on noisy inputs The value is set in seconds with a range of Gto seconds For normal operation a delay of three to five seconds is suitable Alarm reset time Axr t The alarm reset time determines how long the measured value has to be below the high trip point or above the low trip point before the alarm is reset The value is set in seconds with a range of G to 80 seconds For no
29. circuit or short circuit to ground via wire link contact closure or open collector transistor input 54 function for 123456789 description and operation table 3 5 Remote input connections ooo Choose momentary i H latching switch to The selected remote input function can be operated T via an external contact closure via a switch relay or open i collector transistor switch A momentary action is required for functions such as Er 5 a latching switch or normally closed momentary switch may be required for functions such as peak hold E 123456789 3 6 Equflow and Rotapulse wiring and link settings Equflow and Rotapulse flowmeters are commonly supplied with this model Note that sensor supplies are available only on AC powered models Wiring and link settings are as shown below Equflow Colour code White signal terminal 8 Brown 5V terminal 7 Green and shield ground terminal 9 Input link settings Links in are LK2 BIAS HYST GND LK11 5VEX all other links are out Rotapulse Colour code Black signal terminal 8 Brown 24V terminal 7 Blue ground terminal 9 Input link settings Links in are LK2 BIAS LK3 DC LK4 HYST LK9 VCC LK16 amp 17 24V all other links are out Page 8 of 40 RM4TRMAN 1 1 1 3 7 Input circuit LK1 in FREQUENCY 1 LK5 221K HYSTERESIS 2 1 0
30. d set FREE to 767 and F REE SCLE to 1 to display litres minute set FREE to 767 and SELE to 60 to display litres hour set FREE to 767 and FREE SELE to 3600 to display kilolitres hour set FREE to 7670 and FREE SELE to 36 Example Flow rate display from a Rota pulse flowmeter In some applications the number of pulses per litre is not known but the number of pulses per metre flow of liquid is given The number of pulses per litre would then be calculated from the area of the pipe being used The example below shows how scaling factors can be calculated for this type of application See also the Totaliser Explanation of Functions chapter for examples of total scaling for such a flowmeter The Rota pulse paddle wheel flow meter this sensor model is commonly used as an input to the PM4 TR outputs approx 36 5 pulses per metre flow of liquid in a pipe In this example we will assume that the pipe internal diameter is 50mm 25mm or 0 025m radius The steps to calculate the scaling of the meter for this example are as follows 1 Calculate the area of the pipe in square metres Area x xr x x0 025 0 00196 2 Calculate the volume of a 1m length of pipe Volume Area x length 0 00196 x1 0 00196m 3 For every 36 5 pulses we therefore have 0 00196 cubic metres of liquid or 1 96 litres of liquid there are 1000 litres in one cubic metre For a litres sec display we could therefore have sca
31. d then alarm 2 will act as an independent relay If Re amp tis selected then the alarm 2 relay will trail alarm 1 relay With Re t selected if alarm 1 high setpoint is set to 50 and alarm 2 high set point set to 20 then alarm 2 relay will operate at a display of 70 50 20 Alternatively alarm 2 could be set to operate at 30 50 20 by setting alarm 2 high setpoint to 20 Trailing Alarm Table Showing Possible Alarm Assignments Re R3 R4 Rt RE ft Re H3 te 2 R3 9 1 Easy Alarm Access The 4 has an easy alarm access facility which allows operator access to the selected alarm setpoints only to the setpoints selected at the SPRE function simply by pressing the 9 button The first setpoint will then appear and changes to this setpoint may be made to this setpoint via the or 84 buttons Press the button to accept any changes or to move on to the next setpoint The instrument must be set in the manner described below to allow the easy access facility to work 1 Either the RC C S function must be set to ERSY or the function must be set to 5P RC If the RECS function is used the remote input function 7 7 can be assigned to a different use 2 The selected relays must have a setpoint nothing will happen if all the alarm relay setpoints are set to GFF The 8P RC function must be set to allow access to the relays required e g if set to A
32. e being counted e g bottles or pulses are being counted to give displays in total revolutions or length travelled you will need to find out how many pulses equals a given number of display units From this information you can work out suitable input and scale factors The table below gives some general scaling examples The examples which follow illustrate the calculation of scaling figures and settings required for typical applications Example up counting An encoder is connected to a shaft The encoder puts out 1000 pulses per revolution The encoder is connected to a threaded shaft The totaliser is to Show the distance travelled by an object connected to the shaft The object travels a distance of 2 5 mm per revolution of the shaft i e 1000 pulses 2 5 mm travel or 400 pulses 1 mm travel The measurement is to be in metres with 3 decimal points to give a resolution in mm 1 Follow the procedure shown on page 3 to enter the setup functions via CAL mode 2 Step through the functions by pressing and releasing until the kat function is seen followed by the previous decimal point setting 3 Use the or push button to change the tat setting to 2 823 Press to accept the change 4 Step through the functions by pressing and releasing until the tat function followed by the previous input value is seen 5 Use the or push button to alter the previous input value to the new input value
33. e taken to reach consecutive pass values then the 4 will store any relay operations it does not have time to activate and will perform these activations when the total display update rate allows For this reason the relay may be seen to activate repeatedly for a period after the total update rate has slowed down or stopped Alarm relay operation mode Rx EL Rx P5 Each alarm relay can be set to operate as either a standard setpoint relay when is selected or as a pass value relay when 5 is selected With Rx EL selected the relay will operate from the high and or low setpoints RxH and Axt Values for hysteresis trip time reset time normally open normally closed operation and setpoint or trailing alarms can also be set The pass functions RxP5 and will not be seen in ifthe Rx E L mode is selected With 5 selected the relay will operate on a pass value i e it will operate on multiples of the 5 value set the first function described in this chapter See RxP5 and Ax t for further description of operation The setpoint functions Axio RxH Rxe kb AxSP AxeL will not be seen if the 5 mode is selected Page 37 of 40 RM4TRMAN 1 1 1 Trailing or independent set points A function exists to allow relays otherthan relay 1 to be used as independent relays with their own set points or they may be made to trail another relays setpoint For example if R2 5P is selecte
34. eter Optional Output Addendum booklet supplied when this option is fitted Select fom 388 8588 288 2488 4600 9500 8 20r 38 4 Prey Set parity seen only with serial output option Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Select parity check to either NONE EYER or add G Put Set RS232 485 interface mode seen only with serial output option Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Select d 5P Cont Allows user to select the RS232 485 interface operation as follows d SP Sends image data from the display without conversion to ASCII Eant Sends ASCII form of display data every time display is updated P amp Git Controlled by computer or PLC as host Host sends command via RS232 485 and instrument responds as required n bu Modbus RTU communications RH bu5 This mode is used only when the is connected to a computer running the optional Windows compatible live data and logging software Refer to the user manual supplied with this software Allows live viewing and logging to disk of of rate total amp grand total Addr Set unit address for polled PGi L mode 0 to 31 Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Allows several units to operate on the same RS485 interface repor
35. g functions The RM4 setup and calibration functions are configured through a push button sequence Two levels of access are provided for setting up and calibrating FURE mode simple push button sequence allows access to alarm relay preset value amp display brightness functions CAL mode power up sequence plus push button sequence allows access to all functions including calibration parameters Push buttons located at the front of the instrument are used to alter settings Once CAL or FURE mode has been entered you can step through the functions by pressing and releasing the push button until the required function is reached Changes to functions are made by pressing the or push button in some cases both simultaneously when the required function is reached Page 3 of 40 RM4TRMAN 1 1 1 power is removed i e there is no need to repeat step 1 when accessing function unless power has been removed 1 2 Entering HL Mode a CX 3 22 P llsm 1 Remove power from the instrument Hold in the button and reapply power The display will indicate CAL as part of the wake up messages when the EARL message is seen you can release the button 2 When the wake up messages have finished and the display has settled down to its normal reading press then release the 3 button 3 Within 2 seconds of releasing the button press then release UN the and Md butto
36. ge 24 of 40 RM4TRMAN 1 1 1 6 Totaliser Explanation of Functions Totaliser functions The description of functions in this chapter covers E att counter totaliser functions only This mode is selected at the set operation GPET function Remember that you will need to enter via AL or FUNE mode to gain access to functions the function table for each mode shows which functions require entry via EAL mode See Introduction chapter for details of how to enter FURE and CAL modes Functions which are common to both rate and total modes are not described in this chapter refer to the Ratemeter Explanation of Functions chapter for details of these common functions Note a number relays are available with certain option combinations a maximum of 4 relays may be fitted to the 4 if no other options such as retransmission are required the alarm functions are displayed only for the actual number of relays provided The x shown in the following display messages represents the alarm number i e o as shown in the text will appear as Lo Reta etc on the instrument display RxP5 Alarm pass value only seen if Rx P5 selected at the Rx P5 Rx EL function see Alarm relays chapter RxPE Alarm pass time only seen if Rx P5 is selected at the Rx P5 Rx EL function see Alarm relays chapter Totaliser decimal point selection displays and sets the decimal point position for the
37. gs for the main input boards are as shown below For optional output link settings consult the appropriate appendix in this manual L Main circuit board INPUT BOARD LK11 5VEX link is n A LK16 and 17 in for 24VDC transmitter LK11 iav p in for SVDC transmitter mmc supply on terminal 7 Note If terminal 7 supply on terminal 7 is to be used as a 5VDC transmitter 8 dein NEN SET input then LK16 EERE LK10 KEYS is in if 2 2 ERA Inputinen gt terminal 7 is to be used and 17 must be out me 82 0 as the SET input Note if terminal 10 is See section 3 7 for details of link setting in then link 11 must requirements for links LK1 to LK9 be out 3 10 Input link settings The AC link LK8 is only in when the RM4 is to be used to measure the frequency of its own AC supply input this mode also requires other factory fitted components and is therfore only available when if this mode is specified when ordered No signal input other than the AC supply is required when this method is used i e there is no input to signal fed to terminal 8 The LOW FREQ link LK7 is primarily provided to filter out contact bounce for voltage free inputs It can also be used to filter out frequencies above approx 8
38. gt gt rit rrm d Bolo Fue EN Example Entering HL mode to change decimal point dC function from amp to 8 02 Switch off Press amp hold Switch on rni gt gt H instrument Hold Gal unti Release Gi Press amp release Press amp release Press amp release gt Mmi gt gt d Dp roi B until LIE ES until mum Press amp release Press amp release r DnBe un Bolo FUNC Page 5 of 40 RM4TRMAN 1 1 1 2 Mechanical installation The RM4 is designed for DIN rail horizontal mounting The instrument snaps on 35mm DIN standard rails EN50022 Cut the DIN rail to length and install where required To install the 4 simply clip onto the rail as shown below To remove the RM4 lever the lower arm downwards using a broad bladed screwdriver to pull the clip away from the DIN rail 141mm ooooooooQo 123456789 91mm Page 6 of 40 RM4TRMAN 1 1 1 3 Electrical Installation The RM4 Meter is designed for continuous operation and no power switch is fitted to the unit It is recommended that an external switch and fuse be provided to allow the unit to be removed for servicing The terminal blocks allow for wires of up to 2 5mm to be fitted for power supply and relays 1 and 2 or 1 5mm for input signal connections and optional outputs Connect the wires to the appropriate terminals as indicated below Refer to other details provided
39. ion below 8 Press G the function tat SELE will appear followed by the previous scale value 9 Use the push button to alter the previous scale value to the new scale value of G 2 15 See calculation below 10 Press J to accept the change then either press 9 to exit or continue pressing and releasing until the FURIE End message is seen and the display returns to normal measurement mode Calculating the input and scaling figures for the above Rota pulse example Assuming 36 5 pulses per meter flow of liquid and that the pipe is 100mm 0 1 metres in diameter 0 05 metre radius From the pipe diameter we can work out the area in metres squared and the volume in metres cubed of a 1 metre section From the volume we can find the number of litres in the 1 metre section and hence the number of kilolitres in this section x 0 05 2000785 m The volume of a 1 metre length is Volume area x length 0 00785 x 1 0 00785 m Since there are 1000 litres in one cubic meter we can find the number of litres in this one metre length of pipe Litres per metre length volume x 1000 0 00785 1000 7 85 Litres If there are 7 85 litres per metre length and there are 36 5 pulses per metre length then each pulse represents 0 215 litres from 7 85 divided by 36 5 or 0 000215 kilolitres If we had enough decimal point places we could use tot 9 factor or 1 tat SELE factor of 0 000215 to give a display
40. ling factors of FREE 3650 and FREE SELE 196 The table below shows typical scaling factors for this flowmeter Table for Rota pulse flowmeter with 36 5 pulses per metre flow Pipe internal dia Ratemeter scaling factors Litres second Litres minute Litres hour m hour 25mm FREE 3650 FREE 365 FREE 365 FREE 36500 FREE SCLE 49 FREE SOLE 295 FREE SELE 17640 FREE SELE 1764 40mm FREE 3650 FREE 365 FREE 365 FREE 365 FREE SCLE 126 FREE 756 FREE SCLE 45360 FREE 45 50mm FREE 3650 FREE 365 FREE 365 FREE 365 FREE SCLE 196 FREESCLE 1176 FREE SCLE 70560 FREE SOLE 71 80mm FREE 3650 FREE 365 FREE 365 FREE 365 FREE SCLE 503 FREESCLE 3018 TREESCLE 181080 FREE SELE 181 100mm FREE 3650 FREE 365 FREE 365 FREE 365 FREE SELE 785 FREE SCLE 4710 FTREESELE 282600 FREE SELE 281 150mm FREE 365 FREE 365 FREE 365 FREE 365 FREE SELE 177 FREE SOLE 10620 FREESCLE 637200 FREE SELE 637 Note that the above examples can be reduced to smaller numbers as long as the ratio between the two numbers are the same The scaling factors above are approximate and will vary depending on pipe size and installation conditions A
41. llow the procedure shown on page to enter the setup functions FUR mode 10 The first function is A tL o this will be seen followed by the previous low alarm setting 11 Use the or amp push button to change the La setting to 5 18 5 Press 9 to accept the change 12 Press the function A tH will appear followed by the setpoint value 13 Use the push button to alter the previous setpoint value to the new setpoint value of FB W ND Page 20 of 40 RM4TRMAN 1 1 1 500 0 14 Press the function A will appear followed by the previous hysteresis value 15 Use the or push button to alter the previous hysteresis value to the new hysteresis value of 8 0 16 Step through the functions by pressing and releasing until the A in o R function is seen 17 Use the or 64 push button to change the setting to in a normally open operation 18 Press J to accept the change then either press to exit or continue pressing and releasing until the FURIE End message is seen and the unit returns to normal measure mode Example Flow rate display See previous examples for detailed steps showing how to alter functions Flowmeters produce an output frequency proportional to the rate of flow the scaling is calculated using information provided by the manufacturer or from test results e g A turbine produces 767 pulses per litre to display litres secon
42. mode can operate in one of 4 basic ways to give different display options namely 1 Rate display high frequency If Hi F is selected at the FRYE function the instrument acts as a general purpose frequency ratemeter tachometer If a very low frequency below approx 4Hz input is used then La F mode should be selected At frequencies below 4Hz if F is selected the display may alternate between an actual frequency reading and a zero reading this is due to the higher sampling rate when is selected Functions specific to display with F7 E37 RSE set to F with a rate display Rate decimal Fast point update FREE SOP uPdt Rate input Rate scale 2 Rate display low frequency If LaF is selected at the FF ESF RSE function the instrument expects an input frequency of less than 1kHz This mode allows very low frequency inputs without exhibiting the apparent display instability often seen with low frequency inputs This display stability is accomplished by allowing the user to set a time out value see the kaut SEES function Functions specific to display with F7 E37 ARSE set to Lo F with a rate display Rate decimal Rate input Bale stale Time out point n r Ps seconds FHEEdEPE k Gob SEES 3 Period display low frequency With LaF selected at the FTES function the user has the option of either displaying the rate FREE or period PEF d of the
43. ning on the reset line will force a reset entre Se Counter reset value the counter reset value function allows a number to be set at which the display will automatically reset The automatic counter reset function can be disabled by setting the function to G This function is only applicable to upward counting applications i e the total is increasing For example if centr 5t is set to 100 and c r 5t is set to ZEF 8 then when the display value reaches 99 the next input pulse will cause the instrument to automatically reset to Alarm 1 high reset operation or GFF applies to relay 1 only 5 The alarm 1 high reset function allows the alarm operation to also cause an automatic total display reset If the alarm mode is set to total 4 84 then when the display value reaches the value set at R the relay will operate momentarily the duration of the relay pulse can be extended via the irt function if required If the alarm mode is set to pass 1 P5 then the display will reset when the display value reaches the pass value set at PS and the relay will activate and will remain activated for the time set at the function Returning to the normal measure mode When the calibration procedure has been completed it is advisable to return the instrument to the normal mode where calibration functions cannot be tampered with To return to the normal mode turn off power to
44. ns Y together The display will now indicate Fung followed 2 by the first function Note If step 1 above has been completed then the instrument will remain in this AL mode state until Inputs amp outputs Optional outputs Extra relay Two extra relays 12 or 24V isolated transmitter supply Switched 24V output Analog retranmsision Serial communications Two setpoint relays standard Entering Mode No special power up procedure is required to enter FURIE mode 5V or 24V transmitter supply Page 4 of 40 JP 214 1 When the wake up messages have finished and the display has settled down to its normal reading press then release the 3 button AG 2 Within 2 seconds of releasing the button N press then release the and buttons together The display will B now indicate followed by the first function Input Pulse input from proximity sensor encoder flow meter Switch etc link selectable 5 digit LED display Alarm relay annunciator LEDs Pushbutton keypad Power supply RM4TRMAN 1 1 1 Example Entering mode to change alarm 1 high function A tH from GFF to 400 Press amp release Press amp release Press amp release gt H B until LIV E until Press amp release Press amp release
45. o LaF Display range seen only when rr p msnm pm mnm n di 5 d SP set to PEF d 0 3 3 t or G GG Ge Timeout seen only when r m t out SECS INGE set to RUIE or LoF Value in memory 8 Averaging time seen only when r m RUSE SECS FFE set to RUJE Value in memory RBGRE P HL d d HLd H uM Lo H Lo 5P Rc nan FORE Remote inpet d SP dull or g8 5t La H Lo P buk 2 button operation atr B d SP Funt or nant g 5t ACES Alarm relay access mode DRF RONE SPAC Setpoint access A t B 1 72 etc Page 23 of 40 RM4TRMAN 1 1 1 SE Reset value St Reset mode La H LaEor E Lo S Prd PEFd both m s r Set operating mode Lak or FF Ea 388 588 200 24500 bAUd FREE Baud rate 48G8 9 2 or 96868 38 4 Prey Parity select EVER orGdd r b ms m Cont d SP POLL Output continuous or controlled R buS or A buS POLL Addr Set unit address for PGit mode 0103 8 Functions shown shaded will be seen only if the appropriate option is fitted Settings for relays record settings here A1 A2 A4 RxLo RxH AXHY Hxtt Axn o or RXn c 8 or Rx E Pa
46. o exit or continue pressing and releasing until the FUNE End message is seen and the display returns to normal measurement mode Page 30 of 40 RM4TRMAN 1 1 1 Totaliser Function Table ETIN ER Default Record Your Initial displ Meaning of displ Next displ tial display eaning of display ext display Setting Settings AXPS Alarm pass value Pass value or GFF GFF See following table RxPt Alarm pass time Time in seconds 8 0 See following table Axia Alarm low setpoint value Setpoint value or GFF GFF See following table RxH Alarm high setpoint value Setpoint value or GFF GFF See following table RxHM Alarm hysteresis Hysteresis value See following table in measured units m No of seconds A Rxtt Alarm trip time before relay trips 8 See following table No of seconds n Alarm reset time before relay resets 5 See following table or Alarm action N O or N C or Axn e Rxn o See following table AxSPorAxt Setpoint or trailing alarm Rx5P or Axt Rx5P See following table E 01045 br Digital display brightness 45 highest brightness 5 Remote input brightness control 030448 15 highest brightness d oFF SEC S Display auto dimming timer Dto 9999 B seconds Functions below are accessible via C Rt mode only TECA Analog retransmission low val
47. ow If set to there will be no access to any functions via mode entry via C HL mode must be made to gain access to alarm functions If set to ALL then entry to all functions can be made via FUNE mode i e CAL mode entry is not required Alarm relay and function access mode see Alarm relays chapter Page 18 of 40 RM4TRMAN 1 1 1 SPARE Setpoint access sets the FUME mode access to the alarm relays set points The following choices are available A 1 Allows setpoint access to alarm 1 only A 1 e Allows access to alarms 1 and 2 only A 1 3 Allows access to alarms 1 2 and 3 only etc up to the maximum number of relays fitted To allow this function to operate the remote input F 3 function must be set to SPRE c c St Counter reset value not applicable to ratemeter operation c c St Counter reset mode not applicable to ratemeter operation SEt GPEr Set operating mode displays and sets the selected operating mode e g select EBE for totaliser operation See the dedicated chapter in this manual for description of the required operating mode Options are 5 Pr d Not applicable to this manual PET d Not applicable to this manual bath Frequency and total measurement allows toggling between rate and total display tott Total measurement FFE Frequency rate measurement bRud Set baud rate seen only with serial output option Refer to the separate RM4 DIN Rail M
48. planation of bath mode functions can be found by referring to the appropriate ratemeter or totaliser chapter The functions not described in other chapters are Fix relay mode allows choice of relay operation of rate total Hx EL or pass mode Rx P5 optional retransmission 1 mode allows choice of retransmission of rate or total Eat FETZ optional retransmission 2 mode allows choice of retransmission of rate FREE or total Eat The function table below lists all of the functions available in bat mode 8 1 Both Mode Function Table stick at Default Record Your Initial displa Meaning of displa Next displa play 9 Play Setting Settings RxPS Alarm pass value Pass value or GFF GFF See following table Alarm pass time Time in seconds 8 0 See following table RxLo Alarm low setpoint value Setpoint value or GFF GFF See following table Alarm high setpoint value Setpoint value or GFF GFF See following table RxHM Alarm hysteresis Hysteresis end JUS i See following table Rxtt Alarm trip time Not ni abb relay See following table Alarm reset time erar dioi os relay See following table Rxn a or Rxe c Alarm action N O or N C RHxn a Rxn o See following table Rx5P or Axt Setpoint or trailing alarm Rx5P or Axt 5 See following table NM tto tS br St Digital
49. play returns to normal measurement mode Example A Rota pulse paddle wheel flowmeter this sensor model is commonly used as an input to the 4 gives 36 5 pulses per metre flow of liquid The flowmeter is places in a 100mm pipe The 4 is required to display kilolitres to 3 decimal places An alarm relay closure is required when a total of 53 000 kilolitres is reached 1 Follow the procedure shown on page 5 to enter the setup functions via CAL mode 2 Step through the functions by pressing and releasing until the 1H function is seen followed by the previous high alarm setting 3 Use the or Rd push button to change the A tH setting to 5 3 080 6 accept the change Note we will not deal with this here but in practice you will also need to consider alarm hysteresis trip time reset time and normally open normally closed operation of this relay refer to the explanations earlier chapter for further details 4 Step through the functions by pressing and releasing until the kat dCPt function is seen followed by the previous decimal point setting 5 Use the or push button to change the tat dCPt setting to 8 823 Press to accept the change 6 Step through the functions by pressing and releasing until the kat function followed by the previous input value is seen 7 Use the or push button to alter the previous input value to the new input value of GGG See calculat
50. r outputs a sine wave with 30Hz being equivalent to 22 8m S or 82km h To display in metres per second PET d 300 PEF d SELE 228 To display in kilometres per hour PET d 30 PEF d SELE 82 4 2 Error Messages This display indicates an overrange reading This means thatthe instrumentis not being able to display the number because it is too large i e above 99999 Check that the calibration scaling figures are correct if viewing total the total will need to be reset Display fluctuates between a display of zero and another value This indicates that the sample rate is faster than the input frequency See E aut SEES function Page 22 of 40 RM4TRMAN 1 1 1 Ratemeter Function Table Default Record Your Next displ Initial display Meaning of display ext display Setting Settings RxLo Alarm low setpoint value Setpoint value or GFF GFF See following table Alarm high setpoint value Setpoint value or GFF GFF See following table Hysteresis value im RxHM Alarm hysteresis measured units ig See following table Woi No of seconds n Alarm trip time before relay trips 8 See following table No of seconds A Rxect Alarm reset time before relay resets See following table Axn oor Alarm action N O or N C or Axn a See following table AxSPo
51. rAxt Setpoint or trailing alarm Rx5P or RxSP See following table OR 15 br Skt Digital display brightness 15 highest brightness is Remote input brightness control 7 Gio 8 15 highest brightness d oFF SEC S Display auto dimming timer B to 9999 B seconds Functions below are accessible via mode only Analog retransmission low value Value in memory Analog retransmission high value Value in memory rEC Che Analog retransmission 2 low value Value in memory rEL Che Analog retransmission 2 high value Value in memory de Display rounding Value in memory selects resolution Fler Digital filter range 0 to 8 G to 8 8 most filtering 2 Decimal point setting for rate pS CREE display or decimal point setting for n eriod depending upon the d 5P Value memory g P penang up setting Rate input setting Hz or or Period input setting Secs Value in memory depending upon the d SP setting rREE SCL Rate scale setting or Period scale or setting depending upon the d SP Value in memory PErd Sti setting Frequency range ley high or LoF Wi HF averaged frequency FASE uPdt Fast update mode an or GFF GFF ESSE Input edge triggering FRLLor SE rise rising or falling edge Default display for low frequency di SP input seen only when FF E3 FREE orPET d FREE FRE set t
52. rmal operation a delay of zero seconds is suitable Alarm relay N O operation Hxn o n c Each alarm may be programmed to operate as a normally open e g n a or normally closed N C e g Ren c device relay is de energised when no alarm condition is present and is energised when an alarm condition is present A N C relay is normally energised and is de energised when an alarm condition is present The N C mode is useful for power failure detection Alarm pass value RxP5 only seen if Rx P5 selected at the Rx P5 Rx E L function Displays and sets the alarm pass value see Hx P5 Rx EL function The alarm relay will activate at multiples of the pass value e g if HxP5 is set to 5G then the relay will activate at a total display value of 58 GB 158 etc The time for which the relay remains activated at each pass value is set via the function which follows The pass value may be set anywhere in the display range of the instrument Alarm pass time RxP amp only seen if Rx P5 selected at the Rx PS5 Rx EL function Displays and sets the alarm pass time in seconds amp tenths of seconds within the range 8 8 to 999 9 seconds The value set is the time for which the relay will remain energised when activated at a pass value e g if set to 2 8 with a RxP5 value of 58 then the relay will remain energised for 2 0 seconds every time the display passes a multiple of 50 Note If the pass time exceeds the tim
53. rocedure is as follows 1 Enter the setup functions via TRL mode Step through the functions by pressing and releasing until the 7 REE function is seen Use the push button to change the setting to t Press the function 7 REE SELE will appear followed by the previous input value Use the push button to change the setting to Press the function FF EF FAYE will appear followed by the previous setting Use the Md push button to change the setting to t o F Step through the functions by pressing and releasing until the au amp SEES function is seen 9 Use the push button to change the setting to a value greater than 5 seconds e g 8 10 Press J to accept the change then either press 9 to exit or continue pressing and releasing until the FURIE End message is seen and the unit returns to normal measure mode WN Example Low frequency input averaged rate display In applications similar to the bottles minute one above where the input rate is irregular it is sometimes preferable to show an averaged rate display The averaged display will update at the end of the averaged period set at the RUSE SEC 5 function and will therefore show less short term variation in the rate figure To use the average mode the function must be set to AUSE Example RPM display A proximity sensor connected to a flywheel produces 20 pul
54. round rated at 25mA available on both AC and DC powered models Rated 0 5 resistive or DC May be configured for either form A or form C if the third relay is the only option fitted Rated 0 5A resistive or DC form A Non isolated 24VDC output to be used for open collector or solid state relay driver output Isolated 4 to 20mA or 0 1V or O 10V link selectable 12 bit or 16 bit versions available Configurable as retransmission or control RS232 RS485 or RS422 factory configured The rate total update rate for serial communications is twice per second with FASE UPd set to GFF or approx twenty per second with FASE uPdt setto on Isolated amp regulated Link selectable12VDC 50mA max or 24VDC 25mA max 10 3 Physical Characteristics Case Size Connections Weight 44mm w x 91mm h x 141mm d Plug in screw terminals max 1 5mm wire for input signal and options 2 5mm for power and relays 1 amp 2 470 gms basic model 500 gms with option card Page 39 of 40 RM4TRMAN 1 1 1 11 Guarantee and Service The product supplied with this manual is guaranteed against faulty workmanship for a period of 2 years from the date of dispatch Our obligation assumed under this guarantee is limited to the replacement of parts which by our examination are proved to be defective and have not been misused carelessly handled defaced or damaged due to incorrect installation This guarantee is VOID where
55. s Alarm high setpoint Displays and sets the high setpoint value for the designated alarm relay The high alarm setpoint may be disabled by pressing the and keypads simultaneously When the alarm is disabled the display will indicate Use or M to adjust the setpoint value if required The alarm will activate when the displayed value is higher than the RxH setpoint value Each relay may be configured with both a low and high setpoint if required if so the relay will be activated when the display reading moves outside the band set between low and high setpoints Alarm hysteresis Displays and sets the alarm hysteresis limit and is common for both high and low setpoint values The hysteresis value may be used to prevent too frequent operation of the setpoint relay when the measured value stays close to the setpoint Without a hysteresis setting set to zero the alarm will activate when the display value goes above the alarm setpoint for high alarm and will reset when the display value falls below the setpoint this can result in repeated on off switching of the relay at around the setpoint value The hysteresis setting operates as follows Valug In the high alarm mode once the alarm is activated the input must fall below the setpoint value minus the hysteresis value to reset the alarm e g if A iH is setto 50 0 and A HM is set to 3 0 then the setpoint output relay will activate on
56. sed to reduce power consumption The function can be set to any value between amp and 9999 seconds A setting of G disables the auto dimming The display brightness can be restored by pressing any of the instruments front push buttons The display brightness will also be restored whilst one or more alarm relays is activated CAL mode functions Entry CAL mode see Introduction chapter or setting RC C S function to must be made order to view and adjust the functions which follow Page 14 of 40 RM4TRMAN 1 1 1 Analog recorder retransmission output low value seen only when the analog retransmission option is fitted Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Displays and sets the analog retransmission output low value 4mA or OV in displayed engineering units e g for a 4 20mA retransmission if it is required to retransmit 4mA when the display indicates 0 then select 8 at this function via the or button ret Analog recorder retransmission output high value seen only when the analog retransmission option is fitted Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied when this option is fitted Displays and sets the analog retransmission output high value 20mA 1V or 10V in displayed engineering units e g if it is required to retransmit 20mA when the display indicates
57. ses per revolution The RM4 is required to display in RPM with 1 decimal point place The standard setpoint relay is required to close if the RPM figure falls below 518 5 or goes above 600 0 with a hysteresis of 20 0 RPM Note that the first setting which needs to be altered is the decimal point position The alarm settings will therefore come after the other settings in this example In this example 20 pulses per second would equal 1 revolution sec which equals 60 RPM Thet at figure and kat SELE figure could be 20 and 60 0 respectively but we will use 1 and 3 0 since they give the same ratio and hence will give the same reading on the display 1 Follow the procedure shown on page to enter the setup functions via CAL mode Step through the functions by pressing and releasing until the 7 RE E dC function is seen Use the or Md push button to change the setting to 8 t Press the function FREE will appear followed by the previous input value Use the or push button to alter the previous input value to the new input value of t Press the function 7 REE SELE will appear followed by the previous scale value Use the Z or push button to alter the previous scale value to the new scale value of 3 8 Press d to accept the change then either press 3 to exit or continue pressing and releasing until the End message is seen and the unit returns to normal measure mode 9 Fo
58. t circuit is momentary then the display will return to normal measurement after 20 seconds If the short circuit is held for 1 to 2 seconds then the memory will be cleared Lo valley memory The minimum value stored in memory will be displayed Otherwise operates in the same manner as the H function H La toggle between o displays This function allows the remote input to be usedto toggle between peak and valley memory displays The first operation of the remote input will cause the peak memory value to be displayed the next operation will give a valley memory display or PL a will flash before each display to give indication of display type zero the display The total will be zeroed when the remote input is short circuited 5P RC setpoint access only This blocks access to any functions except the alarm setpoint functions unless the remote input pins are short circuited or entry is made via CAL mode Na RE no access This blocks access to all functions unless the remote input pins are short circuited or entry is made via TAL mode d SP display toggle This function will cause the display to toggle from the default display to the alternate display when the remote input pins are short circuited duLL display brightness control The remote input be used to change the display brightness When this mode is selected the display brightness can be switched via the remote input between the brightness le
59. t to 9 6 ot see the function Six modes of grand total display are provided namely no grand total display Far Forward Reverse P amp S Positive Negative FRb5 Absolute These modes allow a choice of how the grand total will be displayed The total may be switched between up and down count via the SET input terminal 10 and the 5 function Ensure that the SET link LK4 is in before attempting to use this input to change count direction The following table illustrates each mode of operation Grand Total Mode Up Count Down Count nang No effect No effect The grand total will increase E iba decr 9859 with each up count input pulse WIth en Far pulse The grand total can The grand total can show show positive and negative positive and negative totals totals The grand total will increase The grand total wil decrease with each down count input with each up count input pulse pulse The grand total can 1 The grand total can show both ositive and negative totals show both postive nd P 9 negative totals The grand total will not register The grand total will increase any down count inputs i e the Pos with each up count input pulse grand total will not change EE The grand total display cannot when down count only inputs go negative are present The grand total display cannot go negative The grand total will not register any up co
60. the instrument wait a few seconds and then restore power Page 27 of 40 RM4TRMAN 1 1 1 6 1 Examples Flow Totalising Flowmeters produce output pulses which may be counted and scaled to give the total flow The number of pulses produced per litre kilolitre etc may be determined using the information provided by the manufacturer or from test results The flow total scaling may be configured as follows Example A turbine flowmeter produces 56 pulses per litre The display is required to show total litres with 1 decimal point place The procedure is as follows 1 Follow the procedure shown on page to enter the setup functions via CAL mode 2 Step through the functions by pressing and releasing until the tat dCPt function is seen followed by the previous decimal point setting 3 Use the or push button to change the tat dEPt setting to B t Press a to accept the change 4 Step through the functions by pressing and releasing until the kat function followed by the previous input value is seen 5 Use the or M push button to alter the previous input value to the new input value of 56 6 Press G the function tat SELE will appear followed by the previous scale value 7 Use the or M push button to alter the previous scale value to the new scale value of t 8 Press d to accept the change then either press to exit or continue pressing and releasing 9 until the FUNE End message is seen and the dis
61. the unit has been opened tampered with or if repairs have been made or attempted by anyone except an authorised representative of the manufacturing company Products for attention under guarantee unless otherwise agreed must be returned to the manufacturer freight paid and if accepted for free repair will be returned to the customers address in Australia free of charge When returning the product for service or repair a full description of the fault and the mode of operation used when the product failed must be given In any event the manufacturer has no other obligation or liability beyond replacement or repair of this product Modifications may be made to any existing or future models of the unit as it may deem necessary without incurring any obligation to incorporate such modifications in units previously sold or to which this guarantee may relate This document is the property of the instrument manufacturer and may not be reproduced in whole or part without the written consent of the manufacturer This product is designed and manufactured in Australia Page 40 of 40 RM4TRMAN 1 1 1
62. ting on different areas etc The host computer or PLC may poll each unit in turn supplying the appropriate address The unit address ranges from 0 to 31 DEC but is offset by 32 DEC to avoid clashing with ASCII special function characters such as lt STX gt and lt CR gt Therefore 32 DEC or 20 HEX is address 0 42 DEC or 2A HEX addresses unit 10 Returning to the normal measure mode When the calibration procedure has been completed it is advisable to return the instrument to the normal mode where calibration functions cannot be tampered with To return to the normal mode turn off power to the instrument wait a few seconds and then restore power Page 19 of 40 RM4TRMAN 1 1 1 4 14 Examples Rate display examples The rate input factor must always be a whole number but the rate scale factor may have decimal points if decimal points are used in the display The formula for the rate display is Input frequency Hz x SELE Display FREE Example Low frequency input rate display A transducer is being used to give one pulse out for every bottle passing a point on a track The display is required to show bottles per minute The number of bottles passing can be as low as one every five seconds up to two per second No decimal points or alarm functions are required The FREE value will be 1 and the FREE SCLE value will be 60 i e 1 bottle per second 60 bottles per minute The p
63. total operating mode NONE Fer EU AGRE peraung 5 5 sini Frequency range H F LoFor AUSE low or high frequency FASE Fast update mode or EdSE Input edge tiggering FALL orf SE rt SE rising or falling edge Default display for low frequency di SP input seen only when FF E3 FREE orPEr ad FREE set to LaF Display range seen only when b rr m d SP d SP setto PEF d 8 8 8 tor G GG Ge Timeout seen only when sp m t out SECS setto RUSE or LoF Value in memory 8 Averaging time seen only when r m RUGE SECS FFE set to RUSE Value in memory AONE P HL d d HLd Lo Lo 5P Rc nnn lE Remote input d SP duLL or PUNE 9 5 Lo H Lo P butk button operation SP Funt or 5 RACE Alarm relay access mode GFF EASY AGKE or ALL GFF SPARC Setpoint access R t RF t 2 etc Axe E Rx E L Rx P5 Alarm ag rate total Rxe E 5 Rx t See following table Analog retransmission 1 output tok orF REE FREE mode rece Analog retransmission 2 output tok orf REE FREE mode 5 Preset value Value in memory 8 SET terminal operation Loorh 9h hy Sh c c St Reset value atr aorP 5Et etra c 5t Reset mode Lo H taEOr E Lo entr F1 5t Counter reset value Value in memory tH Alarm 1 high reset
64. ue Value in memory Analog retransmission high value Value in memory rEC Che Analog retransmission 2 low value Value in memory Che Analog retransmission 2 high value Value in memory Decimal point setting for totaliser 9 m tot dOPE display Value in memory 8 tot I Totaliser input setting Value in memory i tot SCLE Totaliser scale setting Value in memory i ann reese m m S tot Grand total operating mode RONE E aif RE AONE PAPE EdSE Input edge triggering FALL ort SE rt SE rising or falling edge RBRE P HL d d HLd H toa Fa Remote input H Lo 5 nang d SP dubl or8 5t Lo Lo nan Pibut button operation di SP_FURE ora SE nant RCC Alarm relay access mode ERSY NONE or ALL GFF SPRE Setpoint access i e Rx EL Rx P5 Alarm operation mode total or pass Rx EL 5 Rx tL See following table PSEt Preset value Value in memory sin SET terminal low or high input Laor h Gh h Gh operation c c SE Reset value zero or preset 2 5 2 St Reset mode LaEor E Lo entre F 5t Counter reset value Value in memory 8 Alarm 1 high reset oan or GFF GFF Set operating mode Note only 2 SEE both amp are 5 Prd PEFd both totL 1 applicable to this manual 388 8588 200 2400 4 m BHUCIRHE
65. uired Examples below show how a 2Hz input 0 5 sec 500 5 period is affected by the di PET d dc PEand PE d SELE functions Examples are shown for a 5 digit display type instrument d 5 PEF ddC Pt PET dSCLE Value displayed m aa Mi t3 6 m e in t3 Cj G 3 C C3 t3 C3 ny ny c3 03 02 C C C3 O t3 ny 0 0 0 t3 t3 02 t3 t3 nooo 0 8 C3 aa C3 t3 EJ C With the PEF d function set to 1000 the display will time in seconds rather than milli seconds The display can now be made to show hours minutes amp seconds The table below gives some examples d 5 PET d PET dSCLE Actual Value period displayed e e 1m15s 1t 15 e e t1 2h12m30s 2 12 30 eco t3 0 t3 eco t3 0 t3 b oaut SECS Time out only seen if is selected under the FRYE function displays and sets the time out in seconds when using the low frequency LaF range The timeout allows very low frequency inputs to be used without the display reverting to zero between samples If no input pulses are received the display hold the previous display value for the time out period If a pulse is received during this time the display will update If no p
66. ulses are received or the input period exceeds the time out value set then the display will indicate amp or 7er if displaying period The allowable time out range is 1 to 9999 seconds Average seconds only seen if RUSE is selected under the FRYE function displays and sets the number of seconds over which the rate should be averaged when using the low frequency LoF range The rate display will not update until the end of the average seconds time This function allows the user to select a display update rate most suitable for applications in which the rate input may be irregular The allowable averaging range is 1 to 9999 seconds Page 17 of 40 RM4TRMAN 1 1 1 a Remote input function terminals 5 and 9 are the remote input pins When these pins are short circuited via a pushbutton or keyswitch the instrument will perform the selected remote input function A message will flash to indicate which function has been selected when the remote input pins are short circuited The remote input functions are as follows no remote function required P HL d peak hold The display will show the peak hold value whilst the remote input pins are short circuited d HL d display hold The display will hold its value whilst the remote input pins are short circuited H peak memory The peak value stored in memory will be displayed if the remote input pins are short circuited if the shor
67. unt inputs i e the The grand total will increase grand total will not change with each down count input 4 when up count only inputs are pulse The grand total display present The grand total display cannot go negative cannot go negative The grand total will increase The grand total will increase Abs with any input pulse whether up with any input pulse whether up or down count The grand total or down count The grand total display cannot go negative display cannot go negative Input edge triggering displays and sets the input edge on which the instrument will EdSE trigger Select FALL for triggering on a falling edge Select SE for triggering on a rising edge Preset value this function displays and sets the preset value which the total count can be reset to For example if the 4 is set to count down from a preset value then the P 5SEt function sets this value See also St function which sets the reset mode and the P but function which allows the 2 button to be used to force the preset value onto the display Page 26 of 40 RM4TRMAN 1 1 1 SPRE Setpoint access Sets the access to the alarm relay set points The following choices are available A 1 Allows setpoint access to alarm 1 only A 1 2 Allows access to alarms 1 and 2 only A 1 3 allows access to alarms 1 2 and etc up to the maximum number of relays fitted For this function to operate the remote input function m
68. ust be set to 5P RC Rx EL or Alarm relay total mode operation or alarm relay pass mode operation see Alarm Rx P5 Relays chapter An SET terminal input sets in conjunction with the SET terminal input the count up down operation of the totaliser ensure that LK10 is in and that LK11 16 amp 17 are out when the SET input is used in this manner The 5 7 function and the SET terminal terminal 7 input connection may be used in one of the modes shown in the table below 5 setting SET terminal 7 Operation mode Lo Open i e no connection to terminal 7 Count down Closed i e terminal 7 shorted to ground cu terminal 9 h Open i e no connection to terminal 7 Count up Gh Closed i e terminal 7 shorted to ground CUUREBWA terminal 9 c SE Counter reset value the reset terminal can be programmed to cause the display to reset to either zero or the preset value programmed at the P SEt amp function Choose either ZEF D or P SEE to select the required operation c SE Counter reset mode Allows selection of reset level or edge to force a counter reset If set to LB a low input level or closed switch on the reset line will force a reset If set to H a high input level or open switch on the reset line will force a reset If set to LG then a falling edge or switch closure on the reset line will force a reset If set to H E then a rising edge or switch ope
69. vel set at the function and the brightness level set at the function S 5t grand total reset This mode allows the remote input to be used as a reset input for the grand total seen the Eat and bath modes P but 9 button function The front G button may be set to operate one chosen special function With some functions to prevent accidental operation the button must be held pressed for 2 3 seconds before the function will operate If both the remote input and 9 button function are operated simultaneously the button will override the remote input The available functions except for are as described in the F function above Functions available are La Lo 8eET BO d SP FUNE or 5c TheF function is used only in totalising and can be used to adjust the preset value When set to FUNE the message PSEt will appear when the 2 button is pressed The operator can then adjust the preset via the or M button d is then pressed to accept the change A message End will be seen when the new preset value is accepted The 2E 8 FUNE and 8 7 St functions are applicable only to totaliser operation Access mode the access mode function RC C S has four possible settings namely GFF EASY ALL If set to GFF the mode function has no effect on alarm relay operation If set to EASY the easy alarm access mode will be activated see details bel
70. wered models Various combinations of one or two optional extra relays analog 4 20mA 0 1V or 0 10V retransmission PI control or serial RS232 RS485 RS422 communications and an isolated 12 or 24VDC isolated transmitter supply may also be provided as an option Unless otherwise specified at the time of order your 4 has been factory set to a standard configuration Like all other RM4 series instruments the configuration and calibration is easily changed by the user Initial changes may require dismantling the instrument to alter PCB links other changes are made by push button functions Full electrical isolation between power supply input voltage or current and retransmission output is provided by the RMA thereby eliminating grounding and common voltage problems This isolation feature makes the RMA ideal for interfacing to computers PLCs and other data acquisition devices The RM4 series of DIN Rail Process Modules are designed for high reliability in industrial applications The 5 digit LED display provides good visibility even in areas with high ambient light levels A feature of the RM4 is the programmable display brightness function this allows the unit to be operated with low display brightness to reduce the instrument power consumption and to improve readability in darker areas To reduce power consumption in normal use the display can be programmed to automatically dim or blank after a set time 1 1 Entry to setup and scalin

RM4-TR manual - Amalgamated Instrument Co Pty Ltd

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