WIKA A-RB-1 Operating Instructions Manual
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WIKA A-RB-1 Operating Instructions Manual

WIKA A-RB-1 Operating Instructions Manual

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Operating Instructions
Digital Indicator Model A-RB-1

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Summary of Contents for WIKA A-RB-1

  • Page 1 Operating Instructions Digital Indicator Model A-RB-1...

  • Page 2: Table Of Contents

    Damping Reference for damping Baud rate setting 2.5.2 Verification of programmed settings 2.5.3 Compensation of zero offset Model A-RB-1-D with 2 alarms (see also appendix B) 2.6.1 Setting of alarm 1 2.6.2 Setting of alarm 2 2.6.3 Verification of set points of alarm 1 2.6.4...
  • Page 3 Contents Page Section Topic Layout of back panel terminals Layout of 15-pin plug 'J' 3.1.1 Opening the case 3.1.2 Scheme of line power settings Layout of 9-pin plug 'K' Wiring examples Layout of 9-pin Sub-D plug 'L' Option serial interface RS-232 Transfer of data and parameters Programming of parameters Error messages...

  • Page 4: General

    Only appropriately qualified persons should work on these instruments. 1. General The digital indicators A-RB-1 are precision instruments for the measure- ment of current and voltage signals of pressure or other transmitters. The instruments are normally DIN-Size panel mounting (96 x 48 x 190 mm) per IEC 61 554.

  • Page 5: Layout Of Front Panel

    Optionally available are 2 alarm contacts and also a serial RS-232 interface. 2. Layout of front panel The position of the operation and connection elements is shown in appendix C. 2.1 LED display 'A' By means of the MODE key (see section 2.2), the display can be set to optionally read the REAL value measured, or either one of the values stored in the HOLD, MIN or MAX memory.

  • Page 6: Min Mode (Minimum Memory) 'H

    2.2.3 MIN mode (minimum memory) 'h' The lowest value indicated since last hitting of the RESET key is memorised and will be displayed in this mode. Measurement continues in the background, meaning that the memories of MIN and MAX as well as the alarm contacts continue to operate.

  • Page 7: Low End Of Scale

    Press PROG once more: -A-appears, standing for "Low end of scale". Press PROG once more: The "MIN" LED flashes and the corresponding value is displayed. Change this value as desired by hitting the ( ) and ) keys. Press PROG once more: The new value will be memorised. This is indicated by 3 dashes "---"...

  • Page 8: Output Signal

    This is indicated by 3 dashes "---" appearing for a few seconds after which OuX appears, standing for "Output signal X", where "X" stands for figures 1 to 3 as explained below. Change this value as desired by hitting the ( ) and ( ) keys.

  • Page 9: Damping

    Setting Display Analogue Alarm MIN / MAX d XX output contacts memory (0: Damping deactivated, 1: Damping activated) The value for dXX can be changed using the ( ) and ( ) keys. Press PROG once more: The new value will be memorised. This is indicated by 3 dashes "---"...

  • Page 10: Compensation Of Zero Offset

    Press PROG once more: The new value will be memorised. This is indicated by 3 dashes "---" appearing for a few seconds. Programming is now complete and standard operating mode will be automatically selected. Programming can be terminated at any time by hitting the RESET key. In this instance, only such changes are accepted that have been acknowl- edged by appearance of "---".

  • Page 11: Model A-Rb-1-D With 2 Alarms

    7 … 407 bar However, it is more favourable to compensate the offset by adjustment the connected transmitter. 2.6 Model A-RB-1-D with 2 alarms (see also appendix B) The keys SET 1 (alarm 1) and SET 2 (alarm 2) actuate the programming mode to enter and verify the settings of the alarms.
  • Page 12 Press SET 1 once more: The new value will be memorised. This is indicated by 3 dashes "---" appearing for a few seconds and the LED extinguishes. Contact function can be selected to HIGH ALARM (meaning make on rising value), or LOW ALARM (meaning make on falling value). This is easily achieved by programming the make (SE) value either above or below the corresponding break (SA) value.
  • Page 13 Examples: a) HIGH ALARM (make at 1000, break at 800) The circuit relay is energised once the display value rises to 1000. It remains energised until the display value falls to 800. The left hand LED at the SET 1 key comes on at 1000 and is turned off at 800.

  • Page 14: Setting Of Alarm 2

    2.6.2 Setting of alarm 2 (see also appendix B) Programming of the alarm 2 contact is initiated by hitting key SET 2, otherwise fully identically to the programming of no. 1. 2.6.3 Verification of set points of alarm 1 (see also appendix B) Short hitting of the SET 1 key initiates "SP1"...

  • Page 15: Layout Of Back Panel Terminals

    2.7.2 Exit programming mode (see also 2.5.1, 2.6.1 and 2.6.2) Programming can be terminated at any time by hitting the RESET key. In this instance, only such changes are accepted, that have been acknowl- edged by appearance of "---". Otherwise, previously set values remain in effect.

  • Page 16: Layout Of 15-Pin Plug 'J

    3.1 Layout of 15-pin plug 'J' Designation Alarm 1 contact max. AC 250 V / 8 A Alarm 2 contact max. AC 250 V / 8 A AC 230 V ± 10 % or AC 115 V ± 10 %, 50 / 60 Hz Internal jumpers provide adaption to line voltage AC 230 V ±...

  • Page 17: Scheme Of Line Power Settings

    3.1.2 Scheme of line power settings Power setting 230 VAC ± 10 %: Power setting 115 VAC ± 10 %: 3.2 Layout of 9-pin plug 'K' Designation Voltage signal input Current signal input -out Common minus of current and voltage output signal (pins 8 and 9) +24 V Transmitter supply...

  • Page 18: Wiring Examples

    3.3 Wiring examples: a) 2-wire, 4 ... 20 mA transmitter signal Digital indicator Transmitter + I-in - terminal - I-in + 24 V + terminal b) 3-wire, 0 ... 20 mA transmitter signal Digital indicator Transmitter + I-in + signal - I-in - power supply + 24 V...

  • Page 19: Layout Of 9-Pin Sub-D Plug 'L

    3.4 Layout of 9-pin Sub-D plug 'L' Layout of the serial interface is identical to that of commonly found Personal Computers. This simplifies data input into these widely used machines. Designation TX DATA RX DATA GROUND 4. Option serial interface RS-232 The instrument can be optionally equipped with a serial RS-232 data interface.

  • Page 20: Transfer Of Data And Parameters

    4.1 Transfer of data and parameters Com- Response Meaning mand No. of byte Example RREAL Value active value measrued incl. 5 + 6 byte + ↵ sign and decimal point RREAL+12.34 RMODE 1 = REAL mode status message, indicating 2 = HOLD mode current mode of instrument 3 = MIN mode 4 = MAX mode...
  • Page 21 Com- Response Meaning mand No. of byte Example RSCLA Low scale low end of scale value incl. 5 + 6 byte + ↵ sign and decimal point RSCLA+00.00 RSCLE High scale high end of scale value incl. 5 + 6 byte + ↵ sign and decimal point RSCLE+16.00 RINPX...

  • Page 22: Programming Of Parameters

    4.2 Programming of parameters Com- Response Meaning mand No. of byte Example PMODE 1 = REAL mode signal to set 2 = HOLD mode mode of instrument 3 = MIN mode 4 = MAX mode 5 + 1 byte + ↵ PMODE1 PMINM 0 = Reset...
  • Page 23 Com- Response Meaning mand No. of byte Example PSCLE High scale set high end of scale value incl. 5 + 6 byte + ↵ sign and decimal point PSCLE+16.00 PINPX 1 = 0 ... 10 V set input signal at instrument 2 = 0 ...

  • Page 24: Error Messages

    5. Error messages Altogether 6 different error messages may be displayed: 5.1 Error messages E1/-E1 The error messages E1/-E1 will appear, if the actual input signal exceeds the programmed maximum signal value (10 V or 20 mA) by more than 9% or if it falls below the minimum signal value (0 V, 0 mA or 4 mA) by more than 9 % of the maximum signal value, because the inbuilt A/D converter is overloaded.

  • Page 25: Error Message -E3

    Below table indicates the actual values at which this error message will appear: Message Set input signal Actual signal E3 flashes 0 ... 10 V > 10.6 V and < 10.9 V intermittently 0 ... 20 mA > 21.2 mA and < 21.8 mA with measured 4 ...

  • Page 26: Preparing For Installation

    In case of obvious malfunction, it is recommended that you return the instrument to an authorised WIKA service for repair. The front foil may be cleaned using a moist cloth and some non abrasive...

  • Page 27: Specifications

    10. Specifications Specification Model A-RB-1 Display - Design 7-Segment-LED, red, 3 1/2 -digit - Size of digits 14.56 mm - Indication range -1999 ... +1999 Accuracy ± 0.05 % of span ± 2 digit Measuring rate 10 measurements/s, damping selectable in 100 ms steps up to max. 50.0 s...

  • Page 28: Transmission

    Appendix A Schematic description of settings and data transmission Initial status: REAL mode Press PROG and hold down Pro appears at display and will change to SCL indication programming mode. Press PROG - A- appears at display Press PROG current low scale value is displayed and MIN-LED flashs Adjust value using ( ) and ( ) keys...
  • Page 29 Adjust value using ( ) and ( ) keys decimal point changes Press PROG - - - appears, indicating acceptance of new decimal position appears and current index of input signal is displayed Adjust value using ( ) and ( ) keys index figure changes Press PROG...
  • Page 30 Press PROG - - - appears, indicating acceptance of the time of damping dXX appears automatically with the current reference of damping Adjust value using ( ) and ( ) keys reference of damping changes Press PROG - - - acceptance of the reference of damping with - b - appears at display...
  • Page 31 Short hitting of the PROG key, while the instrument is in REAL mode, initiates “PRO“ to appear at the display, followed by all current settings in consecutive order. Below flow diagram explains appearance of key words and values, presuming settings of: Examples: Scale expansion: 0 ...
  • Page 32 Appendix B Schematic description of alarm settings and verification Initial status: REAL mode Press SET 1 and hold down SP1 appears at display and will change to indicating programming mode Press SET 1 current Set point make value no. 1 appears and the - LED of alarm 1 flashs Adjust value using ( ) and (...
  • Page 33 Hitting RESET immediately terminates the programming mode at any time. In this instance, the instrument resumes REAL mode. Only such changes that have been acknowledged by appearance of "---" will become effective. Otherwise, previously set values remain valid. Set points of alarm 2 are entered in the same manner. Short hitting of the SET 1 (SET 2, respectively) key, while the instrument is in REAL mode, initiates verification of the current settings of alarm 1 (2, respectively).
  • Page 34 Appendix C Dimensions Dimensions in mm 95.7 89.5...
  • Page 35 Dimensions in mm Panel cutout in mm +0.8...
  • Page 36 Appendix D Layout of front and back panel...
  • Page 37 LED-display Decrease value key Increase value key Check / set contacts no. 1 ∆ - LED = MAX value; ∇ - LED = MIN value Check / set contacts no. 2 ∆ - LED = MAX value; ∇ - LED = MIN value Select programming mode.
  • Page 38 For your notes...
  • Page 39 For your notes...
  • Page 40 WIKA Alexander Wiegand GmbH & Co. KG Alexander-Wiegand-Straße 30 63911 Klingenberg / Germany Phone (+49) 93 72/132-9986 (+49) 93 72/132-217 E-Mail testequip@wika.de www.wika.de...

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