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    Home » Products » Digital Temperature Controller » Differential Temperature Controller

    Differential Temperature Controller

    Differential Temperature Controller
    Differential Temperature Controller
    Product Code : TTM-J4
    Product Description

    Differential Temperature Controller in the offering is designed and developed adopting latest technology. The modern production techniques allow us to control the production cost, which further assists in keeping the price of this device low. The salient features exhibited by this Differential Temperature Controller are simplified timer, blind function as well as priority display functions. The controller is capable of taking two temperature inputs, while maintaining the difference between them. The major application area where this temperature controller is widely used is solar energy systems. This controller ensure flexibility and efficiency in operations.

    Features:

    • Self- Tuning PID: For control objects, PID constant is automatically calculated and tuned up. The calculation is performed by making alteration of setting value.
    • Blind Function: Parameter screen set up and display on request. Simplified Timer: After certain interval, on/off setting control is possible.
    • Priority Display: Demanding parameter screens are monitored and set up under operational mode screen (maximum 9 screen)
    • Multiple Inputs: Front key can be used to select thermocouple/R.T.D. (Pt 100 & JPt 100).
    • Compact Size: This compact sized temperature controller has 77mm depth.
    • Manual Control: Manual output function for instrumentation system applications.
    • Digital PV filter: Operational filter effect on software for abrupt input value alteration.
    • PID Over-Shoot Protection: It restrains PID over-shoot.
    • Heating/Cooling Control: The temperature can be controlled.
    • Other: On/Off control
    • Standardization of Conformity: VL, CVL & CE approved
    Standard Specifications

    Input Switchable

    Thermocouple

    K,J,T,R,N,S,B (JIS 1602~1995)

    R.T.D.

    Pt100, Jpt 100 (Load resistance 10 or less

    Indication

    PV (Character)

    4 digits, 7 segments Green 10 mm height

    SV (Setting Value)

    4 digits, 7 segments Red 8 mm height

    Various Function Indiacation

    LED: Red (AL1, AL2, Out1, Out2 or RDY)

    Control Method

    PID Auto-Tuning PID Self- Tuning

    Proportional bank (P1)

    0.1 to 200.0% of setting limiter span

    Proportional band (P2) at Output 2

    0.10 to 10.00 times (Times per P)

    Reset time (Integral) (I)

    1 to 3600 sec (0: Off)

    Rate time (Deviation) (D)

    1 to 3600 sec (0: Off)

    Cycle time (T1, T2)

    1 to 120 sec

    Dead band (D8)

    -100.0 to +100.0 or -100 to +100C

    On/Off

    Control sensitivity (C1,C2)

    0 to 999 or 0.0 to 999.9 C

    Off Point of Output 1 & 2

    Position of setting

    -199 to 999 or 199.9 to 999.9 C

    Control Output

    Relay Contact

    250V AC, 3A (Load resistance) 1 a contact (On heating/ cooling operation, output 2 is 250V AC, 2.4A load resistance, 1a contact

    SSR Drive Voltage

    0 to 12V DC (Load resistance: Max 600 or more)

    Sampling Time


    0.5 sec (Output change period is the same)

    Setting and Indication Accuracy

    Thermocouple

    +-(0.3% + 1 digit) of process value or +-2C, either of bigger numerial values is taken. (Ambient temperature: 23C +- 10C)  100 to 0C: +- 3C, 200 to 100CL +- 4C Thermocouple B under 400C is not regulated

    R.T.D.

    +- (0.3% +- 1 digit) of process value or +- 0.9C, either of bigger numerical values is taken. (Ambient temperature: 23C +- 10C) Ambient temperature 23C +- (10C) Ambient temperature 0 to 50C: +- (0.5% +- digit) or 1.5C, either of bigger numerical values is taken

    Memory Element

    EEPROM

    Voltage Source

    100V AC to 240V AC (50/60Hz)

    Weight

    TTM-J4: less than 180g. TTM-J5: less than 240g

    Power Consumption

    Less than 10VA (240V AC)

    Accessories

    Instruction manual & installation attachment (TTM-J4) or installation meal instruments (TTM-J5)

    Operating Condition

    0 to 50C, 20 to 90%RH (under non- condensation)

    Storage Condition

    -25 to 70C, 5 to 95% RH (under non- condensation)

    Functions

    Manipurated Variable Limiter (ML1, MH1, ML2, MH2)

    0.0 to 100.0%

    Setting Limiter (SLL, SLH)

    See Inpu and Range

    Selectable Control Mode (CNT)

    Auto-Tuning PID type A-B, Normal- Reverse, Auto- Tuning PID- On/Off

    PV Correction Setting 0 point (PVS)

    -199 to 999 or 199.9 to 999.9

    PV Correction Setting Gain

    0.50 to 2.00 (times)

    Input Filter

    0 to 99 (sec)

    Manual Reset (PBB)

    0.0 to 100.0%, -100.0 to 100.0 (heating & cooling) of proportional band

    Timer Operation Mode (TMM)

    0.00 minute to 59.59 minutes, 0.00 hour to 99.59 hours: Accuracy: +- (1.5% +- 0.5sec) of setting time

    Decimal Point Shift (DP)

    Decimal point display available (up to 999.9)

    Manual Control

    Auto/Manual control can be switched by key

    Run/Ready

    Run and Ready can be switched by key

    Blind Function

    No indicaion available for non- required display

    Auto-Tuning (AT) Coefficient

    After AT, the computed PV band is newly to set up with another coefficient

    FUNC key

    Digit Shift Timer Start/Reset

    Priority Display

    Arbitrary parameter screens are shifted to indication of operation mode by key (max: 9 screens)

    Lock Function (LOC)

    4 modes (Off, All, Operation Lock, Lock except Operaion Mode)

    Wach Dog Function

    Data check by EEPROM (Err0), A/D converter check (Err1), and Auto-Tuning check (Err2), Built- in watch dog timer

    Event Output 1 (AL1) Event Output 2 (AL2 or OUT2)

    Function: PV contact output (8 modes), Special contact output (3 modes), additional functions (3 modes)

    Setting Range: 199.9 to 999.9 or -1999 to 9999 C

    Sensitivity: 0.0 to 999.9 or 0 to 9999 C

    Rating: 250V AC 2.4A(Load resistance) 1a conact when selecting output 2at contact output 2, the output generates on cooling side during heaing/cooling. Contact polarity is selectable, either normal open or normal close

    Heating & Cooling

    See Control Output in standard specification


    MIFA SYSTEMS PVT. LTD.

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