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Valhalla Scientific 4314Ki Operation Manual

Wide-range digital igniter tester
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4 3 1 4 K i
Wi d e - R a n g e D i g i t a l I g n i t e r T e s t e r
O p e r a t i o n Ma n u a l
R e v 6 7 . 1
© 2 0 2 1 V a l h a l l a S c i e n t i f i c . . A l l R i g h t s R e s e r v e d .

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Summary of Contents for Valhalla Scientific 4314Ki

  • Page 1 4 3 1 4 K i Wi d e - R a n g e D i g i t a l I g n i t e r T e s t e r O p e r a t i o n Ma n u a l R e v 6 7 .
  • Page 3 The warranty period for this instrument is stated on your invoice and packing list. Please refer to these to determine appropriate warranty dates. We will repair the instrument during the warranty period provided it is returned to Valhalla Scientific, Inc. freight prepaid. No other warranty is expressed or implied.
  • Page 4 REMOVE POWER and do not use the product until safe operation can be verified by service-trained personnel. If necessary, return the product to Valhalla Scientific for service and repair to ensure that safety features are maintained.

  • Page 5: Table Of Contents

    Charger/Power Receptacle ........................ 13 RS-232 Connector ..........................13 Power Mode Switch ........................... 13 Power Up ............................... 14 Dual Power Mode ..........................14 Connecting a Load to the 4314Ki ......................16 4-Wire Resistance Measurement ...................... 16 Interpreting the Display ......................... 18...
  • Page 6 Surface Probes ........................... 21 Other Lead Sets ..........................21 Remote Operations ..........................22 Safety Isolated RS-232 Interface ......................22 Connecting the 4314Ki via RS232 ...................... 22 COMMANDS AND SYNTAX ......................... 23 DETAILS OF COMMAND REFERENCE ....................23 Routine Maintenance ........................28 General ..............................
  • Page 7 Addendum ............................33...

  • Page 8: General Information

    Be sure to include the entire serial number, both prefix and suffix, in any correspondence about your instrument. Safety Precautions For an increased level of safety, plug the 4314Ki to a power source only while charging the batteries or in Continuous Power Mode. Do not switch between power modes while the device is powered on.

  • Page 9: Unpacking And Installing

    If the unit fails to operate or fails to meet the performance specifications, notify the carrier's agent and the nearest Valhalla Sales Office. Retain the shipping carton for the carrier's inspection. DO NOT return equipment to Valhalla Scientific, Inc., or any of its sales offices prior to obtaining authorization to do so. Power Requirements The Model 4314Ki is powered by four internal rechargeable heavy-duty Nickel–metal hydride (NiMH)

  • Page 10: Specifications

    3. Specifications This section contains accuracy and operational specifications for the Model 4314Ki. The accuracy specifications are valid for a period of one year from the date of calibration at a temperature of 15°C (59°F) to 35°C (95°F). Outside this range, the temperature coefficient specification applies.

  • Page 11: Temperature

    Temperature Temperature Coefficient: ±0.002% per °C (from 0°C-15°C and 35°C-50°C) not applicable for 200kΩ range and above. Operating Temperature Range: 0°C to 50°C Storage Temperature Range: -10°C to 70°C General Specifications Display Type: 4 ½ digits OLED (19999) Overload Indication: Screen displays “O.L.”...

  • Page 12: Features And Operations

    4314Ki. Front Panel The front panel of the 4314Ki can be broken down into 4 parts. In Figure 1 you can see the regions indicated by their name. Figure 1 - 4314Ki Front Panel Callouts...

  • Page 13: Display

    Device has approximately 6-1 hours of charge left before low battery. Indicates that the device is in battery mode. Battery is low and that readings should not be trusted. An overnight recharge should be performed before using the 4314Ki. Indicates that the device is in Continuous Power Mode.

  • Page 14: Range Selection Keys

    This section of the display indicates the remote/local state of the instrument. If RMT is displayed, the instrument is in remote state and can only receive commands through its remote interface port. If the section is blank, the 4314Ki is in local state and will receive commands from the front panel keys. Range Selection Keys The eight range keys allow the user to select the required measurement range of the instrument.

  • Page 15: Rear Panel

    Rear Panel The rear panel of the 4314Ki may vary from unit to unit based on the features installed. If the 4314Ki that you are using features terminals or connectors that are not described in this section, please refer to any available addendum that references the particularities of your model.

  • Page 16: Power Up

    It is important to note that in the power up (or Standby) state, the 4314Ki will only respond to a keypress, a range select command, or an identification query.
  • Page 17 Indicates that the device is in Continuous Power Mode. When in Battery Mode, the 4314Ki run of 4 NiMH D Cell batteries. The batteries are charged only while the device is in battery mode and turned off. Internal safety line isolation switch disables the battery charging circuit when the 4314Ki is ON.

  • Page 18: Connecting A Load To The 4314Ki

    ←Tab 4-Wire Resistance Measurement The four-terminal configuration of the 4314Ki eliminates errors normally caused by test lead and contact resistances. In many applications, the contact resistance can exceed the value of the load by several orders of magnitude. The 4314Ki bypasses this potential error source by providing two terminals of constant current and an additional two terminals for high impedance voltage measurement.
  • Page 19 For hard-to-reach surfaces, Valhalla Scientific offers two different sets of spring-loaded dual needle probes that differentiate in overall size and distance between the needles.

  • Page 20: Interpreting The Display

    Table 3 - Fail-Safe Current Values per Range Every 4314Ki Igniter Testers are thoroughly tested before the leaves the factory. This includes a failsafe test that simulates a "worst case" failure condition. The resulting output current is recorded and provided...

  • Page 21: Low Battery Indicator

    Low Battery Indicator A standard feature of 4314Ki is a circuit that monitors the output voltage of the internal battery supply. The Battery Status symbol for this feature is located to the far top/right of the display window. Device has approximately 18-12 hours of charge left before low battery.

  • Page 22: Optional Features And Accessories

    5. Optional Features and Accessories Each 4314Ki Igniter Testers is shipped with a detachable power supply/battery charger (A2) and a set of K 4 wire leads. This section lists several items that may be desirable for special applications. Options The 4314Ki comes standard with the Serial Interface and Dual Power Mode switch. However, if required by the application, one or both features can be removed at the factory.

  • Page 23: Needle Type Probes

    KK: Heavy-Duty Lead Set "KK" is a 4-wire Kelvin cable set, 48-inches in length terminated in heavy-duty gold-plated clamps. Figure 4. JAWS: Gold-Plated Clamps "JAWS" are gold-plated heavy-duty clamps. Clamps open to 2 inches for connection to large motors, bushings, etc. Figure 4 - KK: Kelvin 4-Wire Lead Set Needle Type Probes MP-1: Kelvin Micro-Probes...

  • Page 24: Remote Operations

    The device should return the Manufacturer, model number, firmware version in the following format: Valhalla Scientific 4314Ki V1.0 If you do not receive a proper response from the 4314Ki, please check if the power is on, and all cable connections are active.

  • Page 25: Commands And Syntax

    As there is no signal of end message on RS232 bus, therefore, use LF, CR, or CR/LF as message terminator. After the 4314Ki processes a command, a CR/LF is placed in the output buffer and delivered. As for query command, the return message of the instrument is also added an LF for PC to judge message terminator.
  • Page 26 Local COMMAND Returns meter to local mode. Syntax: Local<crlf> Returns: <crlf> Power-on default = LOCAL mode Notes: REMOTE mode is selected when the meter receives a valid character (not <crlf>. LogOn COMMAND Turns on continuous reading mode synonymous with “Ohms?”. Note: if the devices is already Logging, the LogOn command will return “Invalid Command”...
  • Page 27 LogOn2 COMMAND Turns on continuous reading mode synonymous with “Screen? + RangeV?”. Note: if the device is already Logging, the LogOn2 command will return “Invalid Command” Syntax: LogOn2<crlf> Returns: Screen data + the value of the range every 500ms. Example for 2Ω Range: 1.2345<crlf>2 Example for 20Ω...
  • Page 28 2M Ohms Range 20M Ohms Range Reset COMMAND Executes a soft reset of the system. Syntax: Reset<crlf> Response: <crlf> Serial? QUERY Returns the Serial Number of the 4314Ki. Syntax: Serial?<crlf> Response: Serial Number string "67-1234" Example: Serial? "67-1234" SetRange# Command Sets range.
  • Page 29 Screen? QUERY Responds with the screen image. Syntax: Screen?<crlf> Returns: Display data formatted exactly to the screen. Example for a 1.1 ohm reading on: 2Ω Range: 1.1000 20Ω Range: 01.100 200Ω Range: 001.10 2kΩ Range: 0001.1 Standby COMMAND Returns meter to Powerup Screen. (No Current Output) Syntax: Standby<crlf>...

  • Page 30: Routine Maintenance

    Model 4314Ki Digital Igniter Testers. Calibration should be performed on a regular basis to ensure continued instrument accuracy. The recommended calibration interval is 1 year. Required Test Equipment Following is a list of the standard resistors and other equipment required to calibrate the 4314Ki. Precision Resistors: .1Ω ± 0.01% Accuracy 1Ω...

  • Page 31: Calibration Procedure

    Connection: Apply voltage at Sense Inputs and short Source and Sense negative Terminals. On the main board press the CalSwitch (SW202) tact switch to initiate calibration routine. 4314Ki Procedure: 1. Display will prompt: 2. Press SW202. Display will prompt: 3. Apply 0.000mV to the Voltage Sense and press SW202 on the Main Board.
  • Page 32 5. Apply -5.0mV and press SW202. Display will prompt: 6. Apply -9.0mV and press SW202. Display will prompt: 7. Apply -75.0mV and press SW202. Display will prompt: Voltage Sense Calibration is complete.

  • Page 33: Source Adjustments

    SOURCE ADJUSTMENTS 1. Select 200Ω range. 2. Connect to a 100Ω standard resistor. Adjust RV10 for a display reading equal to the value of the resistor. 3. Select 2kΩ range and connect to a 1kΩ standard resistor. Adjust RV11 for a display reading equal to the resistor value. 4.

  • Page 34: Checking The Calibration Results

    3. Check the display for 0 ± 3 digits Battery Replacement Instructions The rechargeable NiMH batteries used in the 4314Ki are very durable and should provide years of trouble- free operation. As with all batteries, a replacement will eventually be necessary. Batteries may be ordered from Valhalla Scientific as stock #05-10117, quantity: (4).
  • Page 35 If no items follow this page, your manual is complete as printed. For repair and calibration services, call 800-548-9806 or visit valhallascientific.com. Email support available at support@valhallascientific.com 4314Ki Programmable Digital Igniter Tester User Manual Revision 67-1 (2022) Copyright © 2022 Valhalla Scientific, Inc. All rights reserved...
  • Page 37 4314Ki Programmable Digital Igniter Tester User Manual Revision 67-1 (2022) Copyright © 2022 Valhalla Scientific, Inc. All rights reserved...

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