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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.
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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.
Certificate of Calibration that accompanies the unit. In addition, to prove that this level of safety is intact, the 4314KVM is equipped with a constant test current monitoring display and a unique Fail-Safe test button that simulates a worst-case component failure and displays the measured fail-safe current, all while the output is isolated from the current source.
Instrument Identification Valhalla Scientific instruments are identified by a two-part serial number. The Serial Tag is located on the rear or bottom of the instrument. The number is in the form of 68-0000 (KVS). The first two digits, called the serial number prefix, indicate the model. It changes only when a change is made to the instrument.
Although the batteries are fully charged prior to shipment, it may be desirable to refresh the charge for 24 hours before use. As a rule of thumb, the 4314KVM requires twice as much time to fully recharge as the amount of discharge time. For example, if the instrument was used continuously for 2 hours, the AC adapter must be connected for 4 hours to fully restore the charge.
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 Light Emitting Diodes (LED) (19999) Current Display: 3 digits Light Emitting Diodes (LED) (999) Overload Indication:...
Chapter 4 – Optional Features and Accessories Each 4314KVM Igniter Tester is shipped with a detachable battery charger (AF-A) and a set of AF-K 4 wire leads. This section lists several items that may be desirable for special applications. Accessories AF-A: Battery Charger "AF-A"...
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Needle Type Probes AF-MP-1: Kelvin Micro-Probes "AF-MP-1" is a 48-inch shielded 4-wire Kelvin cable set with a 1A test current capacity employing a set of Kelvin Micro-Probes. The probes are equipped with spring-loaded stainless-steel tips with 0.05" spacing. AF-MP-2: Kelvin Mini-Probes "AF-MP-2"...
Measurement connections and charging are made via the front panel 6 pin connector. Source and Sense Connections The 4314KVM will include a set of 4 wire alligator clips (AF-K) that will mate with the front panel connector via Mil-Spec MS3116F10-6P. Four of the terminal pins on the front panel receptacle are used as Sense and Source pins providing full 4-Wire Kelvin measurement capability.
4-Wire Resistance Measurement The four-terminal configuration of the 4314KVM 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 4314KVM bypasses this potential error source by providing two terminals of constant current and an additional two terminals for high impedance voltage measurement.
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For hard-to-reach surfaces, Valhalla Scientific offers two sets of spring-loaded dual needle probes differentiated by overall size and distance between the needles. If this is your choice of...
Charger Connections The 4314KVM will include a battery charger that will mate with the front panel connector via Mil-Spec MS3116F10-6P. Two of the terminal pins on the front panel receptacle are used as charger inputs. PIN-C Battery Charger Negative PIN-F Battery Charger Positive The charging requirements of the internal battery pack are 7.5VDC @ 366mA.
If the display appears to be erroneous when connected to a load, recheck the test leads for integrity and cleanliness. If all external items appear to be functioning properly, the problem may be the ohmmeter. In this case, please contact your local Valhalla Scientific Sales Office. Current Display and Multiplier LEDs Under normal operations, the Current display will indicate the value of the source current being used by the tester.
Certificate of Calibration included with every unit. Fail-Safe Test The 4314KVM is equipped with a Fail-Safe test feature that allows for real time verification of the fail-safe current. When the Fail-Safe test button is pressed, the unit disconnects the source terminals from the internal circuitry, simulates a worst-case scenario failure, and measures the source current.
Low Battery Indicator A standard feature of 4314KVM is a circuit that monitors the output voltage of the internal battery supply. The Battery Status LED for this feature is located to the far left of the display window. • Non lit LED indicates that the batteries are charged, and the device can be used.
Engineering Department for additional information. Component Replacement If the problem has been identified as a faulty component, the accuracy of the 4314KVM can be maintained only if the following precautions are taken: a) Use only the specified component or its exact equivalent. Spare parts can be ordered from your nearest Valhalla Scientific Service Center.
Model 4314KVM 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 4314KVM. Precision Resistors: .1Ω ± 0.01% Accuracy 1Ω...
Using the Range Knob, select Stand By. On the main board press SW7 tact switch to initiate calibration routine. 4314KVM Procedure: 1. Display will prompt “CAL-0”. Apply 0.000mV to the Voltage Sense and press the FAILSAFE TEST button on the front panel.
RESISTANCE ADJUSTMENTS 1. Select 200Ω range. 2. Connect to a 100Ω standard resistor. Adjust R15 for a display reading equal to the value of the resistor. 3. Select 2kΩ range and connect to a 1kΩ standard resistor. Adjust RV1 for a display reading equal to the resistor value. 4.
FAILSAFE CHECK 1. Connect the 3458A in the ammeter mode across the current terminals. Select the 2Ω range. 2. Short TP1 to TP2 (see image) and verify that the measured current is equal or less than the value specified in the Fail-Safe current table. 3.
3. Check the display for 0 ± 3 digits. Battery Replacement Instructions The rechargeable NiMH battery pack used in the 4314KVM are very durable and should provide years of trouble-free operation. As with all batteries, replacement will eventually be necessary. Battery pack may be ordered from Valhalla Scientific as stock #HDP, quantity: (1).
Chapter 9 - Addendums Immediately following this page may be found any notices regarding manual changes, or operating considerations for special 4314KVM. Please refer to any applicable material before attempting to operate your Model 4314KVM Note that not all the addendums may apply to your meter.