PAGES EXTRACTED FROM THE 2190 USER MANUAL SECTION
Contents
1. PAGES EXTRACTED FROM THE 2190 USER MANUAL Apply 1VDC and Adjust the indicates 1 NEGATIVE SCALE SECTION IV CALIBRATION 4 1 General 4 Select the 600V and 2A ranges on the Power Analyzer The following procedure should be performed 1ADC and adjust the inputs as necessary at routine intervals to ensure that the 2190 for an indication on the 2100 2110A remains within specified limits In addition WATTS display of exactly 0010 counts calibration should be performed following ignore the decimal point repairs With the covers in place allow the Channel 1 POSITIVE ZERO trimpot for a 2190 to warm up for a minimum of 30 reading on the voltmeter of 2 500mV minutes before performing the procedure 20uV 4 2 Recommended Test Equipment 5 Reverse the polarity of the volts input and readjust as necessary so that the Power The calibration procedure for the Valhalla Analyzer WATTS display 2190 requires the following pieces of test exactly 0010 counts Adjust the Channel equipment 1 NEGATIVE ZERO trimpot for a reading on the voltmeter of 2 500mV 1 Valhalla Scientific Model 2100 or 2110A 20yV Return the voltage to the original Digital Power Analyzer equipped with polarity multiplexed BCD outputs Option DMX 6 Increase the Power Analyzer inputs to 2 A 5 digit voltmeter 500V and 2A and adjust as necessary for an indication of exactly 10000 counts on 3 A source of stable adjustable DC voltage the WATTS display Adjust the Chann2. el and current DCV up to 500V and DCA 1 POSITIVE SCALE trimpot for a up to 2A reading on the voltmeter of 2 5000 volts 1lmV 4 3 Channel 1 Calibration Procedure 6 Reverse the polarity of the voltage input 1 Apply power to the 2190 and test and readjust as necessary for an indication equipment and allow 30 minutes for on the Power Analyzer of exactly 10000 instrument warm up counts on the WATTS display Adjust the Channel 2 Connect the Valhalla Digital Power trimpot for a reading on the voltmeter of Analyzer DMX output to the BCD input 2 5000 volts 1mV of the Valhalla 2190 as described in Section 3 3 7 3 Connect the positive terminal of the voltmeter to the center conductor of the 2190 front panel BNC connector Channel 1 Connect the LOW or GROUND terminal of the voltmeter to the BNC connector shell Disable the voltage and current sources The current source may be removed for Channel 2 adjustments 4 4 Channel 2 Calibration Procedure NOTE Valhalla Model 2100 2101 2110A and 2111A Power 1 Using the same signal connections as for Analyzers do not utilize the Channel 1 above move the 5 digit negative side of Channel 2 and no voltmeter input to monitor the Channel 2 adjustment is necessary output BNC jack Ifthe 2190 is being used in a custom 2 Select the 150V range and the VOLTS application and calibration is desired for the display on the Power Analyzer negative side of Channel 2 set the POLARITY bit t
3. o 0 and return to step 3 3 Apply 1VDC to the Power Analyzer and Adjust for negative voltages instead of adjust the input as necessary for an positive indication of exactly 0010 counts on the VOLTS display ignore the decimal point Adjust the Channel 2 POSITIVE ZERO trimpot for a reading on the voltmeter of 2 500mV 20uV 4 Apply 100VDC to the Power Analyzer and adjust the input as necessary for an indication of exactly 10000 counts on the VOLTS display ignore the decimal point Adjust the Channel 2 POSITIVE SCALE trimpot for a reading on the voltmeter of 2 5000V IlmV 5 This concludes calibration of Channel 2 Disable the voltage sources and remove all connections
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