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Twite Instruments MultiScan TD-32-T Operating Manual

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MultiScan
OPERATING MANUAL
MODEL TD-32-T
TD-32 SERIES
UP/DOWN
PUSH FOR
SETTING
SELECTING
ENTER
AUSTRALIAN MADE
Lq=| Suc=| F=| Def=O
Contrl Tmp +22.1
Set Point
Set Point Number 4
INSTRUMENTS
INSTRUMENTS
oC
+18.0
oC

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Summary of Contents for Twite Instruments MultiScan TD-32-T

  • Page 1 MultiScan OPERATING MANUAL MODEL TD-32-T TD-32 SERIES INSTRUMENTS UP/DOWN Lq=| Suc=| F=| Def=O Contrl Tmp +22.1 Set Point +18.0 PUSH FOR Set Point Number 4 SETTING SELECTING ENTER AUSTRALIAN MADE INSTRUMENTS...
  • Page 2 Twite Instruments Pty. Ltd. or any of its Partners, Principals or Employees cannot be held responsible or liable for any loss of product, produce or buildings where any of Twite Instruments Pty. Ltd. Products are found to be responsible for the loss of any product, produce or buildings.

  • Page 3: Table Of Contents

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL Contents Mounting Dimensions Terminal Numbers and Position MultiScan positioning and Mounting Control Output Power Connections MultiScan Digital Temperature Input Terminals 11-12 Temperature channels used for control and core temperature MultiScan Alarm and Output Terminals...
  • Page 4 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL Contents SETTING FUNCTIONS 42-43 Overview 42-43 Functions and the No. of each 44-45 "Control Auto or OFF" "Temperature set Pnts" "Temp're Differential" "Temp Diff'tial Type" "Temp Time Set Points" "Daily Set Points Use"...
  • Page 5 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL Contents "Test Display/Rst log" "Set Dig Temp Offset" "Add Dig Temp Sensor" "Set Room ID Number" "Display Brightness" "Number of Resets S/N" "Type of Room Control" "Reset Room Run Hours" “LED Display Intens'y”...
  • Page 6 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL...

  • Page 7: Installation

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION :- Din Rail Mount Size of Unit. 90mm...

  • Page 8: Terminal Numbers And Position

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION :- Terminal Numbers.

  • Page 9: Multiscan Positioning And Mounting

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION :- MultiScan positioning and Mounting. The unit should be mounted at a level for easy viewing and access to setting knob, using the DIN rail mounting to mount to the DIN rail within the cabinet. Ensure it is in a dry area and not in direct sunlight and not subject to any vibration.

  • Page 10: Control Output Power Connections

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Control Output Power Connections :- Power for compressor and condenser control can be up to 24 V ac. and connected to the terminal Block MultiScan Control Output Power Connections. Voltage on any control output and common must not exceed 24 volts AC and Total Current of all outputs Must Not Exceed 5 amps.

  • Page 11: Multiscan Digital Temperature Input Terminals

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan Digital Temperature Input Terminals :- DS18B20 Digital Type (up to 8 temperature sensors may be connected):- Temperature probes are fitted with 1 meter of cable each (may be extended to a maximum distance of 100 meters using twisted pair shielded cable).
  • Page 12 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan Digital Temperature Input Terminals Cont :- DS18B20 Digital Type (up to 8 temperature sensors may be connected) cont:- SHIELD--GROUND SIGNAL--BLUE WIRE + POSITIVE--WHITE WIRE Types of sensors Available PROBE PLASTIC SHEATH 40 X 6 MM APPROX.

  • Page 13: Temperature Channels Used For Control And Core Temperature

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Temperature channels used for control:- Default Temperature Sensors used for each Function: Digital Sensor Number 1 : Room control sensor. Digital Sensor Number 2 : Room core probe sensor. Digital Sensor Number 3 to 8 Spares.

  • Page 14: Multiscan Alarm And Output Terminals

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan Alarm and Output Terminals:- The Alarm Relay is of the voltage free type with a common, normally connected and normally not connected outputs. The maximum voltage that can be applied to the alarm relay contacts is 24v AC/DC at 1AMP.

  • Page 15: Multiscan 2 Wire Serial Inputs

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan 2 Wire Serial Inputs :- TempScan Connected. If a TempScan is connected to the MultiScan, the 2 wire serial connections are re- quired for the TempScan to control the room temperature and defrost sections of the MultiScan.
  • Page 16 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan 2 Wire Serial Inputs :- TempScan Connected cont. The first display (Lq = | Suc=| F=| Def = O on top line) will indicate on the 2nd line at the right hand position "--" if no communications are received from the TempScan after 10 seconds and will display "cn"...
  • Page 17 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. MultiScan 2 Wire Serial Inputs :- TempScan Connected cont. To set the DIP switch. Remove the knob by pulling straight out. Remove the front panel by levering it out from the display end and two sides (top and bottom) using a small screw driver being careful not to damage the front panel or the unit.

  • Page 18: Lcd Display Contrast Adjust

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. LCD Display Contrast Adjust. This trim pot adjusts the intensity of the LIQUID CRYSTAL DISPLAY. This should not normally need adjusting. Remove the knob by pulling straight out. Remove the front panel by levering it out from the display end and two sides (top and bottom) using a small screw driver being careful not to damage the front panel or the unit.

  • Page 19: Battery Replacement

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Battery Replacement. If the backup battery needs replacing, the display will flash "Replace Battery" on the bottom line each second. Turn off the power to the unit. Remove the knob by pulling straight out.

  • Page 20: Program Chip Replacement

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Program Chip Replacement. If the program chip needs replacing do the following. Turn the power off to the unit. Remove the knob by pulling straight out. Remove the front panel by levering it out from the display end and two sides (top and bottom) using a small screw driver being careful not to damage the front panel or the unit.

  • Page 21: Expansion Socket

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Expansion Socket. The Expansion socket is used for other modules to be added if required. Additional LED panel display is available as AN optional extra. To install the LED panel display, follow the below diagrams and connect the cable from the TD-32-T expansion socket (making sure the orientation is correct) to the INPUT socket of the TD-32-D board (making sure the orientation is correct).
  • Page 22 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Expansion Socket cont. The LED display can be mounted onto a front panel. If the LED display touches the front bezel before the unit is secure, use the washers to set the circuit board back so that the display does not touch the bezel.
  • Page 23 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Expansion Socket cont.
  • Page 24 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL INSTALLATION CONT. Temperature Sensor Positioning :- Temperature probes must be placed in the appropriate positions in give accurate readings of the process required. The temperature sensors must not be exposed to temperatures below -50.0 o C or above +125.0 o C...

  • Page 25: Operation

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL OPERATION. Using 4 Set points for Temperature Control :- Up to 4 Temperature set points may be used for Temperature Control and Tempera- ture Alarms for each day of the week. These 4 set points (set in function "SET POINT TIMES") are associated with 4 times of the day, each day of the week use the same 4 times.

  • Page 26: Defrost Control

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL OPERATION CONT. Defrost Control :- Up to 8 Defrosts can be programmed per 24 hour day. Full control of delays and drain times are provided including pump down and automatic and manual defrosts.

  • Page 27: Alarm Action

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL OPERATION CONT. Alarm Action:- Some alarms will turn the system off and some will indicate the alarm but the system will still run. If any sensor used in a control temperature/pressure goes into alarm, that control temperature/pressure will alarm and the system will shut down.
  • Page 28 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL OPERATION CONT. Alarm Action cont.:- The following is the display for each alarm and its meaning. The N = No alarm on this input. The S = the system will shut down if this goes into alarm and A = Only an alarm will sound on this input but the system will continue to run.

  • Page 29: Alarm History

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL OPERATION CONT. Alarm History:- The alarm history displays the last 40 alarms that were active. After 40 alarms have been logged the next alarm is placed over the first alarm that was saved and each suc- cessive alarm placed over the next earliest alarm etc..

  • Page 30: Data Logging

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DATA LOGGING. Data logging is done on the times set in the functions setting and can log at the below times. Data logging may be done at timed intervals as follows:- NONE (don't do) Does not do timed logging.
  • Page 31 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DATA LOGGING CONT. Press the knob for 3 seconds to revert to the normal run display pages. The display will revert to the time display (page 1) after 240 seconds if nothing is pressed or turned.

  • Page 32: Up/Down Knob And Switch Functions

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL UP/DOWN KNOB AND SWITCH FUNCTIONS :- Overview The following switches are available for setting of functions etc. The ROTARY/PUSH knob - for displaying different pages, data logged, alarms and setting/entering val ues of functions.

  • Page 33: Display Pages

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES. The following displays are available by rotating the "ROTARY/PUSH" knob clock- wise and anticlockwise while no setting of functions is being done. NOTE: If after 240 seconds the knob was not used, the display will revert to page 1.
  • Page 34 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 1: (If TempScan is Connected). The status of the room controls, on the top line. TempScan 2 wire cn (if no communications the cn will display --) The time and date of the real time clock in the TD-32-T unit on the third line.
  • Page 35 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 3: The temperature of the digital sensor number 5 on the second line. The temperature of the digital sensor number 6 on the second line. The temperature of the digital sensor number 7 on the third line.
  • Page 36 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 4: Data Logged Page. To display data logged, rotate the knob until the data logg display page is displayed, displays "Data Logged Display" on the top line. Press the knob briefly to hold the display. Rotating the knob will go to the next/pre- vious time to be displayed.

  • Page 37: Alarms Page

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 5: Alarms Page. To scroll though and alarms, turn the knob to the alarm page and press the knob once then turn the knob clockwise or anticlockwise to display each alarm.
  • Page 38 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 6: Alarm History Page. The alarm history displays the last 40 alarms that were active. After 40 alarms have been logged the next alarm is placed over the first alarm that was saved and each suc- cessive alarm placed over the next earliest alarm etc..
  • Page 39 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DISPLAY PAGES CONT. Page 7: The number of hours the room has run on the first line. The time and date on the second line. MultiScan Model No. on the third line The TD-32-T Ver No. ** on the fourth line...

  • Page 40: Password

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL PASSWORD:- Users Password :- When the password is required (can be turned on or off) the display will request the password when “SET” knob is pressed then "ENTER" knob is pressed to select that function to change/check with the following message.

  • Page 41: Change Password

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL PASSWORD CONT.:- Change Password (use "SET" knob, "ENTER" knob, rotate UP/DOWN knob.) Allows the Password to be changed. If the Password is inactive (i.e.. is set to OFF) this function will automatically require the users password before you can change it.

  • Page 42: Setting Functions

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL SETTING FUNCTIONS. Overview: To set any function, the following switches are used:- If the password is required, then it must be entered before any function can be changed. The large knob is used for "SET FUNCTIONS" key on the first press and then be- comes the "ENTER"...
  • Page 43 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL SETTING FUNCTIONS. Overview cont.: When a flashing cursor is displayed on the Liquid Crystal Display the Value or Func- tion may be changed to another by rotating the knob (“UP/DOWN”). After the correct value has been entered press the “ENTER” knob and the value will be entered into memory for all the channels selected if required and will not be af- fected by a power failure.

  • Page 44: Functions And The No. Of Each

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS. Functions and the No. of each:- "Control Auto or OFF" Turns the system to run on auto or off. "Temperature set Pnts" Sets 4 temperature set points for room control. "Temp're Differential"...
  • Page 45 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. Functions and the No. of each cont:- "Add Dig Temp Sensor" Add a new digital temperature sensor. "Set Room ID Number" The units number from 1 to 100 for TempScan. "Display Brightness"...

  • Page 46: Control Auto Or Off

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Control Auto or OFF” Sets whether the room control is on automatic or off. There is no manual on control for safety. PRESS “KNOB” ROTATE KNOB   TO SELECT "Control Auto or OFF" on bottom line.

  • Page 47: Temp Time Set Points

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Temp Time Set Points” Sets the 4 Set Point Times associated with the 4 Temperature set points and Temperature Alarm set points. The first set point time must be the time closest to midnight.

  • Page 48: Fans Manual 1 Day Wk

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Fans Manual 1 Day Wk” This set point is for allowing the fans in a room to be on manual (continuously) for 1 day of the week every week. The fans will be on manual for the selected day from 12:00 AM to 12:00 midnight of the day required.

  • Page 49: Defrost Start Times

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Defrost Start Times” Sets the 8 Times that an automatic defrost can be done in each 24 hour day. Time one must be the first time after 00:00 (midnight) etc. If less than 8 times per day are required set the remaining times not required to the same last time the last defrost is required.

  • Page 50: Do A Manual Defrost

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Do a Manual Defrost” Selects whether the unit does a Manual Defrost, Resets to "no" when finished defrost. PRESS “KNOB” ROTATE KNOB   TO SELECT "Do a Manual Defrost" on bottom line.

  • Page 51: Power On Start Delay

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Power On Start Delay” Sets the Turn on Delay in minutes for the system to start after a reset or power failure. PRESS “KNOB” ROTATE KNOB   TO SELECT "Power On Start Delay" on bottom line.

  • Page 52: Hi Temp Alarm Delay

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Hi Temp Alarm Delay” Sets the high alarm temperature delay for temperature sensors. Only sensors that are set to "Connected" will be available for selection. PRESS “KNOB” ROTATE KNOB   TO SELECT "Hi Temp Alarm Delay" on bottom line.

  • Page 53: Set Data Logging

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Set Data Logging” Sets the data logging times (puts information values and time) into memory for retrieval latter via the display, printer or computer. PRESS “KNOB” ROTATE KNOB   TO SELECT "Set Data Logging" on bottom line.

  • Page 54: Dig Temp's Connected

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Dig Temp's Connected” Sets whether each digital type temperature sensor is connected or not. All digital sensors may be selected in this function. PRESS “KNOB” ROTATE KNOB   TO SELECT "Dig Temp's Connected" on bottom line.

  • Page 55: Password Yes/No

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Password YES/NO” Selects whether the Password is required for setting functions or not. PRESS “KNOB” ROTATE KNOB   TO SELECT "Password YES/NO" on bottom line. PRESS “KNOB” ENTER PASSWORD IF REQUIRED ROTATE KNOB ...

  • Page 56: 32 "Test Display/Rst Log

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Test Display/Rst Log” Displays the model number and version number and resetS the data logged to nothing logged. PRESS “KNOB” ROTATE KNOB   TO SELECT "Test Display/Rst Log" on bottom line.

  • Page 57: 34 "Add Dig Temp Sensor

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Add Dig Temp Sensor” All digital temperature sensors have a unique serial number embedded within the sensor. To add a sensor or replace an existing sensor, do the following. Remove all currently connected senors (hard wired). Place the new sensor into the correct terminals and do the following.

  • Page 58: 36 "Display Brightness

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “Display Brightness” Sets the brightness of the LCD displays back light. 0 = off and 255 = full on. PRESS “KNOB” ROTATE KNOB   TO SELECT "Display Brightness" on bottom line.

  • Page 59: 40 "Led Display Intens'y

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL FUNCTIONS CONT. “LED Display Intens'y” Sets the brightness of the LED display from 0 = Dull and 15 = full on. This is an optional extra module that can be fitted to thew unit.

  • Page 60: Startup Default Set Points & Complete Reset

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL STARTUP DEFAULT SET POINTS & COMPLETE RESET. If for any reason the unit locks up, the unit may be reset and the real time clock restarted and all set points set to the first set of default values by doing the fol- lowing.

  • Page 61: Set Points Crc:- Cyclic Redundancy Check & Limp Home

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL SET POINTS CRC:- CYCLIC REDUNDANCY CHECK & LIMP HOME. A CRC check is done on all set points each 5 seconds and if the set points become corrupt for any reason the saved set points will be loaded into all set points for the system to use these set points.

  • Page 62: Default Values

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DEFAULT VALUES. "Control Auto or OFF" "Temperature set Pnts" 0.0 oC "Temp're Differential" 1.0 oC "Temp Diff'tial Type" MIDDLE "Temp Time Set Points" ALL 10:00 "Daily Set Points Use" ALL USED EVERY DAY "Fans Auto or Manual"...
  • Page 63 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL DEFAULT VALUES. Default Values cont:- 34 "Add Dig Temp Sensor" 35 "Set Room ID Number" 36 "Display Brightness" 37 "Number of Resets S/N" 38 "Type of Room Control" SINGLE STAND ALONE 39 "Reset Room Run Hours"...

  • Page 64: Specifications

    TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL SPECIFICATIONS A-32-R ALL SET POINTS ARE FOR INDIVIDUAL CHAN’S WHERE APPLICABLE. TEMPERATURE INPUTS (Digital) 18B20 temperature sensor MAX TEMPERATURE INPUTS LCD DISPLAY 4 line x 20 character super twist. KEYBOARD SETTING Spin up/down and push and x50 button RESOLUTION (temperature) 0.1 oC.
  • Page 65 TWITE INSTRUMENTS MultiScan MODEL TD-32-T OPERATING MANUAL...

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