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KYOWA WGI-400A Instruction Manual

Instrumentation amplifier with multipurpose indicator
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Thank
Instrumentation Amplifier with Multipurpose Indicator.
Read this Instruction Manual carefully in order to make full use of the
high performance capabilities of the product.
Do not use the product in methods other than described in this Manual.
Copyright © KYOWA ELECTRONIC INSTRUMENTS CO., LTD. All rights reserved.
This Instruction Manual may not be copied or reproduced, in whole or part, without consent of KYOWA.
The Manual has been complied with great care. However, if the need should arise for more information, contact
KYOWA or our representatives.
The contents of the Manual are subjected to change without prior notice.
INSTRUMENTATION AMPLIFIER
MULTIPURPOSE INDICATOR
WGI-400A
INSTRUCTION MANUAL
you
for
purchasing
With
KYOWA's
product
IM-A-683C April 2022
WGI-400A

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Summary of Contents for KYOWA WGI-400A

  • Page 1 Copyright © KYOWA ELECTRONIC INSTRUMENTS CO., LTD. All rights reserved. This Instruction Manual may not be copied or reproduced, in whole or part, without consent of KYOWA. The Manual has been complied with great care. However, if the need should arise for more information, contact KYOWA or our representatives.

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ............................1 PRIOR TO USE ....................................1 SAFETY SYMBOLS ..................................1 PRINCIPAL FUNCTIONS ............................4 STANDARD ACCESSORIES ..........................4 TYPES ..................................5 1. PARTS NAMES AND FUNCTIONS ........................6 1-1 FRONT PANEL ................................... 6 1-2 REAR PANEL ....................................7 2.

  • Page 5: Safety Precautions

    This Instruction Manual describes detailed instructions for operating the WGI-400A Instrumentation Amplifier with Multipurpose Indicator (hereinafter referred to as the WGI-400A). For safe use of the WGI-400A, do not forget to read the “Safety Precautions” prior to use. KYOWA ELECTRONIC INSTRUMENTS CO., LTD. assumes no liability for any damages resulting from user’s failure to comply with the safety precautions.
  • Page 6 Or, electric shock or fire hazard may result. Contact KYOWA’s representatives for repair. ●Do not put water or foreign matters into the WGI-400A. In case if any foreign matters are entered, immediately turn OFF the power. Or, electric shock or fire hazard may result.
  • Page 7 Do not use transducers other than the above or deterioration of the instrument may result. ●Before cleaning the panel, always turn OFF the WGI-400A and gently clean with a soft cloth. Do not use paint thinner, benzine, acetone, kerosene or the like.

  • Page 8: Principal Functions

    Various optional functions such as RS-232C, RS-485, and BCD output functions are provided so as to be easily connected to an external indicator, printer, sequencer, PC, etc. STANDARD ACCESSORIES The following accessories are enclosed with the WGI-400A. After unpacking, check all the accessories are correctly prepared. Unit seal ..................1 Product Warranty ................

  • Page 9: Types

    TYPES The WGI-400A has the following types according to optional functions. Model Name No Optionals BCD Output RS-232C RS-485 AC Power Supply DC Power Supply WGI-400A-00 ○ ○ WGI-400A-01 ○ ○ WGI-400A-02 ○ ○ WGI-400A-03 ○ ○ WGI-400A-10 ○ ○...

  • Page 10: Parts Names And Functions

    6) [LOW] Limit LED ......• Lights up when the measured value is less than the low limit value. Flickers when the low limit value is displayed. 7) Operation Key ........ • A pushbutton switch to operate the WGI-400A. One key is used together for multiple functions that are automatically switched according to measuring or setting states.

  • Page 11: Rear Panel

    Connect AC power supply. L : Power supply input terminal + : +Power supply input terminal Connect DC power supply. (When DC is optionally set.) - : -Power supply input terminal 7) Fitting Metal Used for fixing the WGI-400A to the panel.

  • Page 12: Connection

    2. CONNECTION 2-1 INSTALLING TO THE PANEL +0.4 92.2 To install the WGI-400A to the panel, prepare a panel according to the specified panel cut dimensions as shown at the right. Then, install theWGI-400A by referring to the following procedures.

  • Page 13: Wiring

    10 seconds. Before turning on again, please make sure if the power source is compatible. Note: Although the WGI-400A may be operated with power supply voltage exceeding the allowable power voltage range, the operation may not be guaranteed Always use the WGI-400A within the specified power voltage range.

  • Page 14: Connecting Control Input Terminal

    Note: Control input/output and analog output terminals has a tightening torque of 0.5 N･m or less. 2-2-7 Connecting BCD Output For connection of BDC output, see the WGI-400A Instruction Manual for Optional Functions. 2-2-8 Connecting RS Output For connection of RS output, see the WGI-400A Instruction Manual for Optional Functions.

  • Page 15: Operation And Function

    Before changing functions or high/low limit values, do not forget to cancel the [LOCK] state. • Power ON and the WGI-400A starts up in measuring state with [LOCK] LED turned ON/ OFF depending on the state before turning OFF the power.

  • Page 16: Digital Zero Function

    • Short-circuit between rear terminals (INPUT) COM and No. 1 (Zero) to conduct digital Zero function. This function is available when the [LOCK] LED is ON. • When external control input terminals are set to OFF, the WGI-400A shall be in measuring state after conducting the digital Zero function.

  • Page 17: Calibration Function

    3-4 CALIBRATION FUNCTION There are 3 calibration functions appropriate for the required purpose, that is, ‘Actual load calibration’ that calibrates data by applying already known load to transducers (sensors), ‘Sensitivity registering calibration’ that conducts calibration by registering a sensitivity value written in the transducer inspection report, and ‘Numeric value registering calibration’...

  • Page 18: Sensitivity Registering Calibration Function

    3-4-2 Sensitivity Registering Calibration Function This is a function that calibrates data by registering rated output of a transducer without applying the actual load. Use a transducer having ‘rated capacity: 1 kHz’ and ‘rated output: 2.004 mV/V.’ An example shall be explained to have the indicator display ‘1.000’...

  • Page 19: Numeric Value Registering Calibration

    3-4-3 Numeric Value Registering Calibration This is a function that calibrates data by setting the indicated value to a reference (Initial) value. Conduct this function after the actual load and sensitivity registering calibrations. This function is used for pressure transducers for absolute pressure measurement or when already load is applied and unable to obtain the actual load state.

  • Page 20: Comparator Function

    3-5 COMPARATOR FUNCTION 3-5-1 High/Low Limit Comparator Function High/low limit comparator function is a function that compares the indicated value with the high/low limit value and outputs the compared result. The result of comparison is obtained as open collector output from the rear terminal board and is indicated on the [HIGH]/[OK]/[LOW] LEDs on the front panel.

  • Page 21: Pattern Function

    ‘0.’ 3-7 LEVEL TEST FUNCTION Level test function is used for setting the indication of the WGI-400A to a predetermined indicated value. It is used for adjusting the external connected devices or testing the output of the WGI-400A.

  • Page 22: Teds Function

    3-8 TEDS FUNCTION TEDS function of the WGI-400A is a function that reads excitation voltage, rated output, and rated capacity from transducer data with TEDS function (Transducer Data Electronic Sheet) built-in and automatically registers sensitivity and decimal point position. 1) TEDS Function with Initial Value Set sensors in no-load state as same as in sensitivity registering calibration.

  • Page 23: Function Selecting Mode (Function Mode)

    3-9 FUNCTION SELECTING MODE (FUNCTION MODE) • There are the following selective functions. F-01: Original value F-12: Initialize F-02: Actual Load Calibration F-13: BV Select F-03: Sensitivity Registering Calibration F-14: Operation Pattern F-04: Numeric Value Registering Calibration *F-15: RS-1 F-05: Self-Check *F-16: RS-2 F-06: Analog Output Scale *F-17: Device ID...

  • Page 24: List Of Functions

    3-9-3 List of Functions For details of each function, see the following Table 3-9-3. Table 3-9-3 Various Functions in Function Selecting Mode (1/5) Key Operation and WGI-400A Function Name Functional Description Movement in Function Setting Mode F-01 “……” is displayed.
  • Page 25 LEDs light up to conduct self-check. displays the checked results. The self-check results are indicated as described at the right. ● If faulty self-check results appear on Good: Normal the indicator, contact KYOWA or our E-01: RAM failure representatives. E-02: Flash memory failure F-06 •...
  • Page 26 Table 3-8-3 Various Functions in Function Selecting Mode (3/5) Key Operation and WGI-400A Function Name Functional Description Movement in Function Setting Mode F-07 Displays the following items 1) and 2). • A function that stables the Smoothing indication by smoothing the varying signals from the transducer.
  • Page 27 Table 3-9-3 Various Functions in Function Selecting Mode (4/5) Key Operation and WGI-400A Function Name Functional Description Movement in Function Setting Mode F-09 • ‘μ' is displayed on the Status Indicator. • Zero tracking Auto Zero Compensation Set Zero compensation range and press...
  • Page 28 Table 3-8-3 Various Functions in Function Selecting Mode (5/5) Key Operation and WGI-400A Function Name Functional Description Movement in Function Setting Mode F-14 • Set value 0: Pattern 0 • Select high/low limit Operation Pattern 1: Pattern 1 comparator values from 4 2: Pattern 2 sets of patterns.

  • Page 29: Error Code Table

    Indicated value is above 9999. Sensitivity registering value is exceeding Change the setting to less than 9999 per 0.1 E-12 the specified range. mV/V. E-01 Failure Memory (RAM) failure. Contact KYOWA or our representatives for E-02 Memory (EEPROM) failure. repair.

  • Page 30: Operation Timing

    4. OPERATION TIMING 4-1 CONTROL INPUT (ZERO, LEVEL TEST, PATTERN SELECT 1, & PATTERN SELECT 2 COMMANDS) Zero Command Level Test Command Pattern Select Command T1: 50 ms .... After short-circuiting the control input signal, maximum delay time until it becomes to be in operating state.

  • Page 31: Delay Time Between Input And Output Signals

    4-3 DELAY TIME BETWEEN INPUT AND OUTPUT SIGNALS Delay time between input and BCD output ..Maximum 180 ms Delay time between input and RS output ..... Maximum 180 ms Delay time between input and DA output .... Maximum 370 ms...

  • Page 32: Specifications

    5. SPECIFICATIONS 5-1 SPECIFICATIONS Model Name ..........WGI-400A Instrumentation Amplifier with Multipurpose Indicator The Number of Measuring Channels ..1 Compatible Sensor ........Strain Gage Transducer Compatible Bridge Resistor ...... 87.5 to 1000 Ω (350 Ω 4 units parallel connection available) Bridge Excitation Voltage ......
  • Page 33 Control Output .......... The number of points: 3 (HIGH, OK, and LOW) Output mode: Open collector (NPN) Load capacity: 30 VDC, 20 mA (Resistance load) Pattern function: Set 4 sets of high/low limit value, Selectable from external signal High/Low limit comparator function: The number of points: 2 (HGH and LOW) Setting range: ±9999 Comparison speed: 50 times/sec...

  • Page 34: Outside Drawing

    5-2 OUTSIDE DRAWING 1) Standard model with no optionals. +0.4 45.2 (144) (135)

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