RT-10 BATTERY-POWERED LOCAL FLOW TRANSMITTER OperaƟon & InstallaƟon Manual Rev.
RT‐10 Flow Monitor Operation and Programming Manual Table of Contents Safety Definitions and Information ............................................................................................................... 3 Unpacking ..................................................................................................................................................... 3 Quick Start Guide ...............................................................................................................
RT‐10 Flow Monitor Operation and Programming Manual K‐Factor in Pulses per Engineering Unit .............................................................................................. 15 Rate Mode Programming ........................................................................................................................ 16 Time Base for Rate .............................................................................................................................. 16 Gate Time .................
RT‐10 Flow Monitor Operation and Programming Manual Safety Definitions and Information Do not attempt to install or use your AW Gear Meters product until you have read the safety instructions in this section. Save this manual and keep it in an easily accessible place. Warning! Warning means that failure to follow this safety statement may result in extensive product damage, serious personal injury, or death.
RT‐10 Flow Monitor Operation and Programming Manual Quick Start Guide Caution As with any precision‐engineered device, always use the RT‐10 in accordance with the manufacturer’s instructions. Installation Secure appropriate sensor onto RT‐10 Flow Monitor. Place flow monitor with sensor into fitting in flow meter. Notice Before attaching the RT‐10 Flow Monitor to the flow meter, note any potential clearance issues. Power A lithium battery provides the power to the RT‐10.
RT‐10 Flow Monitor Operation and Programming Manual Product Description The battery‐powered RT‐10 has a large, six‐digit LCD display that continuously shows either the flow rate or total in any engineering units. Program rate, total, reset, sleep mode, or time using buttons when the protective blue cover is open, or with a magnet wand when the cover is closed. You can also reset the totalizer, and monitor flow rate limits and total output remotely via a computer or PLC.
RT‐10 Flow Monitor Operation and Programming Manual RT‐10 Models Refer to this chart for ordering different versions of the RT‐10 Flow Monitor.
RT‐10 Flow Monitor Operation and Programming Manual Standard Configurations The illustration below shows standard, TR series, HUB, and fiber optic variations of the RT‐10 Flow Monitor.
RT‐10 Flow Monitor Operation and Programming Manual Specifications Flow Meter Compatibility: positive displacement: JV and HPM series (except JV‐01, JV‐10, and JV‐12); turbine: TR, TRG, and TA Series (linear flow range may vary) Power: internal 3.
RT‐10 Flow Monitor Operation and Programming Manual PIGTA IL LEA D S (LA B ELLED ) mA + mA - m A + LO OP- PO W ERED TW O - W IRE m A - 4 - 2 0 m A OUTPUT RT-EX10 1 /2 " N PT SR# RT001500 Figure 1: Loop‐Powered Analog Output Fiber‐Optic Systems (fiber‐optic input/output models only) Fiber optic input models accept optical signals from AW Gear Meters FOP‐20 or FOP‐30 fiber optic transmitters using AW Gear Meters fiber optic cable.
RT‐10 Flow Monitor Operation and Programming Manual Operation Use the buttons on the face plate when the cover is off, or the magnet wand when the cover is on, to affect mode and program changes and to reset total. The magnetic switches are located at the 3, 6, 9 and 12 o’clock positions on the side of the housing. Markers on the faceplate of the device indicate the function of each position. Touch the side of the magnet wand to the appropriate location to activate a magnetic switch.
RT‐10 Flow Monitor Operation and Programming Manual Sleep Mode In order to conserve the battery, the RT‐10 reverts to “sleep” mode after a specific period of inactivity where the device receives no pulses and activates no switches. See page 20 for information on programming the “sleep time” period. SLEEP TIM ER SLEEP W HEN IN A C TIVE RA TE, TO TA L, O R C LO C K D ISPLA Y Low Battery The RT‐10 has an ON‐time battery timer with a factory‐specified limit of 700 to 1400 days, depending on options.
RT‐10 Flow Monitor Operation and Programming Manual Total Display View the Job Total using the DN/MODE button when cover is open, or externally using the magnet switch. As the MODE changes, “total” displays briefly. The total initially displays with five decimal places. The decimal point “floats” to the right as the total increases. The Job Total rolls over to zero when the value reaches 999999.
RT‐10 Flow Monitor Operation and Programming Manual FRO M RA TE D ISPLA Y M OD E D ISPLA YS B RIEFLY 1 SEC GRA N D TO TA L SEL* O VERFLO W SEL + D N * # O F TIM ES GRA N D TO TA L HA S RO LLED O VER FRO M 9 9 9 9 9 9 . TO 0 (M A X = 9 9 9 9 ) * D ISPLA Y W HILE PRESSED M OD E TO C LO C K O R TO TA L D ISPLA Y Grand Total Reset As security against losing the Grand Total and overflow values, you must hold three keys simultaneously for nine seconds to reset. You can only do this with the cover off.
RT‐10 Flow Monitor Operation and Programming Manual Clock Display Mode The real‐time clock has a 24‐hour format. View it using the DN/MODE button when cover is open or by externally using the magnetic switch. As the MODE changes, “cloc” displays briefly. The RT‐10 uses the real‐time clock for the Sleep Timer (to conserve energy) and the Battery Timer (for indicating battery life). Use the SEL button or magnetic switch to view the number of days of battery use and the remaining days on the timer.
RT‐10 Flow Monitor Operation and Programming Manual Since the Rate Scaling and optional Analog Scaling variables are based on the K‐factor, it is best to start by programming the K‐factor. Total Mode Programming K‐Factor in Pulses per Engineering Unit You will use the Total Display Mode to enter this scaling factor, which is used to display both Rate and Total in an engineering unit such as gallons, ounces, liters or cc’s.
RT‐10 Flow Monitor Operation and Programming Manual FRO M RA TE D ISPLA Y M OD E 1 SEC HO LD RT- EX1 0 M OD EL 3 SEC . HO LD EN T D ISPLA YS B RIEFLY 1 SEC M OD E PULSES PER EN G. UN IT D ISPLA YS B RIEFLY 1 SEC EN T EN TER M ETER K- FA C TOR IN PULSES PER EN G. UN IT D ESIRED FO R RA TE A N D TO TA L D ISPLA YS. ED ITIN G VA RIA B LES: LEFTM O ST D IGIT W ILL B LIN K (C URSOR). USE SEL TO M O VE C URSO R TO THE RIGHT. D EC IM A L PO IN T IS ED ITED LA ST. C URSO R W ILL W RA P A RO UN D .
RT‐10 Flow Monitor Operation and Programming Manual value is 3 seconds. The maximum allowable Gate time depends on the expected maximum input frequency and is determined by the formula: Maximum gate time (seconds) = 65,535 counts/maximum frequency in Hz To calculate the maximum frequency, use the formula: Maximum flow rate (engineering unit/sec) X K‐factor (pulses/engineering unit) = frequency in Hz The maximum gate time value versus frequency is represented in the following graph. Max.
RT‐10 Flow Monitor Operation and Programming Manual Analog Scaling (option) Notice Will not display if model does not include analog output. The display (briefly) shows ANALOG followed by the currently programmed Analog Scaling value. This scaling variable is used to set the maximum output of 20 mA to a corresponding rate value, which produces an output ranging from 4 mA for a zero value to 20 mA for the programmed flow rate. The default initial value is 50.000 (Hz by default K‐factor).
RT‐10 Flow Monitor Operation and Programming Manual Frequency Scaling (option) Notice Will not display if model does not include fiber‐optic frequency output. The display (briefly) shows “Fibout” followed by the current programmed Frequency Scaling value. This scaling variable is used to set the maximum output of 100 Hz to a corresponding rate value. This produces an output ranging from 0 Hz for a zero value to 100 Hz for the programmed flow rate. The default initial value is 100.
RT‐10 Flow Monitor Operation and Programming Manual Clock Mode Programming Use the Clock Display Mode to set the time on the real‐time clock (if necessary), and to program the “Sleep Time.” The Sleep Time determines the length of the period of inactivity (no pulse or switch activity) before the RT‐Ex10 “sleeps” to conserve energy. Setting the Time To view the Clock Display Mode, use the DN/MODE button or magnetic switch.
RT‐10 Flow Monitor Operation and Programming Manual Changing the Battery Remove the enclosure cover. Caution You must remove the cover outside the hazardous area if dangerous conditions are present. When the battery timer has expired, LO BAT displays briefly every time you change the display mode to indicate that the expected battery life has been reached. The battery is a 3.6 volt Lithium “C” cell available from AW Gear Meters (part number MI50004).
RT‐10 Flow Monitor Operation and Programming Manual Resetting the Battery Timer As soon as you place a battery in the holder, the RT‐10 alternately displays “bA old” (battery old) and “bA neu” (battery new) several times for approximately one second each. If you have replaced the battery with a new battery, press ENT when “bA neu” appears to reset the battery timer to zero days. If you re‐installed the same battery, press ENT while “bA old” appears; the battery timer will not reset.
RT‐10 Flow Monitor Operation and Programming Manual Limited Warranty AW Gear Meters warrants the product to be in good working order for a period of 1 (one) year from the date of purchase from AW Gear Meters or an Authorized AW Gear Meters distributor. Should the product fail to be good working order at any time during this 1‐year warranty period, AW Gear Meters will, at its option, repair or replace the product at no additional charge except as set forth below.
