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QuadTech Guardian 5000 Instruction Manual

Ac/dc/ir/gc safety analyzer

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The material in this manual is for informational purposes only and is subject to change,
without notice. QuadTech assumes no responsibility for any error or for consequential
damages that may result from the misinterpretation of any procedures in this publication.
www.valuetronics.com
©QuadTech, Inc., 1996
5 Clock Tower Place, 210 East
Maynard, Massachusetts, U.S.A. 01754-2530
November, 1999
Tel.
800-253-1230 (Sales & Service)
Fax.
Email: sales@quadtech.com
Web site: http://www.quadtech.com
IEC417
!
Symbol
on equipment signifies that the manual contains
information to prevent injury or equipment damage
Guardian 5000
AC/DC/IR/GC Safety Analyzer
Instruction Manual
Form 150206/B3
978-461-2100
978-461-4295

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Summary of Contents for QuadTech Guardian 5000

  • Page 1 The material in this manual is for informational purposes only and is subject to change, without notice. QuadTech assumes no responsibility for any error or for consequential damages that may result from the misinterpretation of any procedures in this publication.
  • Page 2 www.valuetronics.com...
  • Page 3: Table Of Contents

    Contents ......................v Warranty Specifications ......................vii Introduction - Section 1 Unpacking and Inspection ................1-1 Product Overview..................1-1 Front Panel Description................. 1-2 Rear Panel Description .................. 1-6 Accessories Included ..................1-7 Accessories/Options Available..............1-7 Power Requirements..................1-8 Operation - Section 2 Startup ......................2-1 Instrument Zeroing/Offset ................2-1 Connection to Device Under Test ..............2-3 Measurement Procedure ................2-6...
  • Page 4 Contents Continued Maintenance/Calibration - Section 4 General ......................4-1 Instrument Return..................4-1 Calibration .....................4-1 4.3.1 Calibration Procedure................4-2 4.3.2 AC Voltage Calibration..............4-3 4.3.3 DC Voltage Calibration..............4-4 4.3.4 IR Voltage Calibration ..............4-4 4.3.5 AC Current Calibration ..............4-5 4.3.6 DC Current Calibration ..............4-6 4.3.7 GC Calibration...................
  • Page 5: Warranty

    SERVICE POLICY QuadTech policy is to maintain product repair capability for a period of at least five (5) years after original shipment and to make this capability available at the then prevailing schedule of charges.
  • Page 6: Specifications

    Specifications Dielectric Strength • Output Voltage: Range: 0.1 to 5 KV AC, in 10V/steps, 50 - 600Hz • 0.1 to 6 KV DC, in 10V/steps Accuracy: +/- (1% of reading + 5 counts) Regulation: <1% + 5V, rated load • Breakdown: Detection: Imax: 0.3 - 40mA AC, 0.3 - 20mA DC...
  • Page 7 Storage: - 10 to + 60o C • • • 115 V/230V +/- 10% 47 - 63Hz 650W max Power: • • Instruction Manual Power Cable Supplied: • • Calibration Certificate Test Leads Description Catalog No. Ordering AC/DC/IR/GC Safety Analyzer Guardian 5000 Information: www.valuetronics.com...
  • Page 8 www.valuetronics.com...
  • Page 9: Unpacking And Inspection

    Inspect the instrument for any damage. If the instrument appears damaged or fails to meet specifications notify QuadTech (refer to instruction manual front cover) or its local representative. Retain the shipping carton and packing material for future use such as returning for recalibration or service.
  • Page 10: Front Panel Description

    Front Panel Description Figure 1-2 shows the controls and indicators on the front panel of the Guardian 5000. Table 1-1 identifies them with descriptions and functions. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Figure 1-2 Front Panel Controls &...
  • Page 11 Table 1-1 Front Panel Controls and Indicators Fig 1-2 Ref. # Item Function Step Display indicates step number selected in the auto test sequence (1 to 15). Indicates memory group number (1 to 50) when RCL (recall) or STO (store) is selected. Mode Light indicates that tester is in Ground Continuity, AC Hipot, RΩ/W-ACV DC Hipot or Insulation Resistance mode status.
  • Page 12 Table 1-1 Front Panel Controls and Indicators (continued) Fig 1-2 Ref. # Item Function Limit/Measure Indicates the units for the entered limits or the measured display Display Units (mA for hipot, MΩ for IR or mΩ for GC) Timer Indicates when test time shown is RAMP time Indicator For use by qualified service personnel during instrument ENABLE...
  • Page 13 Table 1-1 Front Panel Controls and Indicators (continued) Fig 1-2 Ref. # Item Function CURSOR Under STOP status: keys or DOWN to examine 1 - 15 steps Under Hipot test On: or DOWN to increase or decrease test voltage in continuous mode Under PROG status: LEFT...
  • Page 14: Rear Panel Description

    Input/output connections according to IEEE STD-488.2. 24 pin socket for standard IEEE-488 cable. Refer to paragraph 3.2 SCAN Input/output scanner interface for QuadTech 5000-01 or 5000-02 Multiport Scanner Matrix. Refer to Paragraph 3.3. Voltage Switches for selecting range of AC power source...
  • Page 15: Accessories Included

    Accessories Included Table 1-3 Item Quantity Instruction Manual Calibration Certificate Power Cord Power Line Fuse, 7A S02, Test Lead Set, Hipot (1 red, 1 black, with alligator clips) G15, Test Lead Set, GC (1 red, 1 black, with spring clips) G14, Test Lead Set, Hipot (115V Receptacle) Accessories/Options Available Table 1-4...
  • Page 16: Power Requirements

    Power Requirements The Guardian 5000 can be operated from a power source of 90 to 130 VAC or 200 to 250 VAC. Power connection is via the rear panel through a standard receptacle. Before connecting the 3-wire power cord between the unit and AC power source make sure the voltage selection switches on the rear panel (as indicated) and fuses are in accordance with the power source being used.
  • Page 17: Operation

    Connect the instrument power cord to the source of proper voltage. The instrument is to be used only with three wire grounded outlets. Power is applied to the Guardian 5000 by pressing the front panel POWER switch to ON (1 position).
  • Page 18 Proceed as follows for automatic zeroing/offset: • Plug the appropriate cable (or other fixture) into the front panel OUTPUT connectors, with no device connected. Refer to paragraph 2.3 for cable configurations based on test to be made. Test leads used for an AC Hipot, DC Hipot or Insulation Resistance measurement should be open and those leads used for the ground continuity measurement be shorted together before performing the zeroing offset.
  • Page 19: Connection To Device Under Test

    Connection to Device Under Test Before connecting the device for test Press the STOP key and make sure the red DANGER light is not on. Depending on the test to be conducted (Hipot, IR or Ground Continuity) connect the test cables to the front panel OUTPUT connectors.
  • Page 20 HIGH-VOLTAGE UNKNOWN Connect to Power Ground of DUT HIGH Large Alligator Clip Lead SENSE (Black) DRIVER Device Under Test (DUT) Large Alligator Clip Lead (Red) Connect to Case of DUT Figure 2-2 Connection for Ground Continuity Test (Using G15 Two Lead Set, Large Clips) HIGH-VOLTAGE Red Lead Black Lead With...
  • Page 21 HIGH-VOLTAGE UNKNOWN Shorted Together HIGH Alligator Clip Lead (Red) SENSE Connect to Power Ground of DUT DRIVER Large Alligator Clip Lead (Black) Device Under Test (DUT) Large Alligator Clip Lead (Red) Connect to Case of DUT Figure 2-4 Connection for Hipot and Ground Continuity Test (Using S02 (HV cable) and G15 Clip Lead Sets) HIGH-VOLTAGE Red Lead...
  • Page 22: Measurement Procedure

    Measurement Procedure Once the instrument has been powered up, the offset function implemented and the device under test connected, testing can begin. The operator has the choice of performing a test at power-up conditions (test conditions at which the instrument was last powered down), or recalling one of 50 possible stored setups.
  • Page 23 To recall one of the 50 setups proceed as follows: • Press the RCL key. • The STEP display shows the current setup # selected. From the front panel keypad type in the setup number desired (1 - 50). • Press ENTER to load the stored test conditions and then initiate a test as just described.
  • Page 24: Programming Test Modes

    Programming Tests Mode Each test can consist of 1 to 15 steps in sequence, for example, a typical three step test might be an AC hipot test followed by an IR test and followed by a Ground Continuity test. Each step may be programmed for any available function (ACV, DCV, IR or R-Ω...
  • Page 25 • To change a test mode select the step to be changed (1 to 15) as described above and press PROG and then ENTER (the VAC/VDC /IR/RΩ light will be blinking). • Arrow UP or DOWN to the newly desired test mode (VAC/VDC/IR/RΩ) and press ENTER again.
  • Page 26: Programming Hipot Test

    Programming Hipot Test Test Step Test Voltage Leakage Current Time TIMER STEP 2.50 5.00 W-ACV TEST W-DCV RAMP LOCK OFFSET HI-NG LO-NG ARC-NG PASS PROG OFF ON STOP START DELE CLEAR OFFSET CURSOR OFF ENTER With the instrument in standby status (Stop button previously pressed and no lights blinking) press the arrow UP or arrow DOWN to select the test step # (1 - 15) to be...
  • Page 27 From the Data Entry Keys type the desired arc current limit and then press ENTER. (0.500 to 40.00mA AC, or 20.00mA DC is the allowable range). Any measured value of arc current above this will result in a fail decision. An entry of 0 disables the limit detection. Test Time From the Data Entry Keys type the desired test time and then press ENTER.
  • Page 28: Programming Insulation Resistance (Ir) Test

    To store the present set of test conditions proceed as follows: • If the instrument is in programming mode (any lights blinking) press the PROG key. • Press the STO key. • From the Data Entry Keys type the setup number desired (1 - 50). •...
  • Page 29 Test Voltage From the Data Entry Keys type the desired test voltage and then press ENTER. (100 to 1000V DC are the allowable ranges, in 1 steps). Lo Limit From the Data Entry Keys type the desired low resistance limit and then press ENTER. (10MΩ...
  • Page 30: Programming Ground Continuity Test

    Programming Ground Continuity Test Resistance Test Step Test Current Time TIMER STEP 25.0 W-ACV TEST W-DCV RAMP LOCK OFFSET HI-NG LO-NG ARC-NG PASS PROG OFF ON STOP START DELE CLEAR OFFSET CURSOR OFF ENTER With the instrument in standby status (Stop button previously pressed and no lights blinking) press the arrow UP or arrow DOWN to select the test step # (1 - 15) to be...
  • Page 31 WARNING EXTREME CAUTION MUST BE USED BY THE OPERATOR, IN CONTINUOUS MODE, HIGH CURRENT IS APPLIED TO THE TEST TERMINALS UNTIL THE STOP BUTTON IS DEPRESSED OR A FAILURE RESULTING FROM THE SET LIMIT OCCURS. After the final test condition entry (TEST time) the instrument returns to the blinking test step #.
  • Page 32: Initial Parameter Setting

    Initial Parameter Settings The Guardian 5000 has a number of parameter setting that seldom require change, the instrument will power-up with default setting. Each of these parameters are listed in the table below and can be changed using the following procedure.
  • Page 33 St - 3 (Ground Continuity test frequency) The current frequency is shown on the Timer display. From the Data Entry Keys type the frequency desired [50 or 60] and ENTER. St - 4 (IR test delay time) The current delay time is shown on the Timer display. From the Data Entry Keys type the time desired [.3 - 999] and ENTER.
  • Page 34: Front Panel Lockout

    2.10 Front Panel Lockout With front panel lock in effect the ability to change test conditions is prohibited. Only the START and STOP buttons and the setup recall function (RCL) are functional. To activate the front panel lockout: • With the instrument in standby status (Stop button previously pressed and no lights blinking) enter [5] [0] [0] [0] and [OFF] from the data entry keys.
  • Page 35: Input/Output Interfaces - Section

    Section 3 Input/Output Interfaces Remote A remote control connector is located on the rear panel of the instrument with input connections for starting and stopping the unit externally and output connections indicating instrument status and a safety interlock connection. Inputs require a contact closure and outputs provide a contact closure, as shown in the figure below.
  • Page 36 PASS CONDITION FAIL CONDITION close START open close UNDER TEST open close 215ms 215ms PASS open close 215ms FAIL open close 215ms STOP open close INTERLOCK open Maintenance & Calibration 3-2 www.valuetronics.com...
  • Page 37: Ieee-488 Interface

    IEEE-488 Interface 3.2.1 Description The Guardian 5000 includes an IEEE-4888 interface with connection through a connector (24 pin) on the rear panel. This interface can be used to connect to a system containing a number of instruments and a controller in which each meets IEEE Standard 488.2 (Standard Digital Interface for Programmable Instrumentation).
  • Page 38: Interface Commands

    3.2.2 Interface Commands The interface function is controlled by ASCII commands which include: {[command + parameter] ; [command + parameter] + ending code} The length of the string is 128 characters. It is not necessary to input any sign or space between the command and parameter.
  • Page 39: Listener Functions

    3.2.2.1 Listener Functions Item Command Parameter Function STOP stop test TEST start test SHOW (?) set testing value STEP (?) set Step MODE (?) {n | c} set test mode SOUR (?) set output voltage or current VOLT (?) set output voltage CURR (?) set output current HILI (?)
  • Page 40 1. STOP Stop testing, same as STOP on front panel. 2. TEST Start testing, same as START on front panel. 3. SHOW (?) {c} Check the testing value, [STATUS] [STEP] [MODE] [SOURCE] [MEASURE] [TIMER] [CHAN] [SAVE] The command can connect each parameter with "|". Each parameter can be abbreviated.
  • Page 41 9. HILI (?) {f | *} Set the high limit value according to mode selected. * disables the high limit. Ground Continuity f = 0.1 - 500.0 mΩ AC Hipot f = 0.01 - 40.00 mA DC Hipot f = 0.01 - 20.00 mA Insulation Resistance f = 1 - 9999 MΩ...
  • Page 42 16. *SAV {n} Save the test conditions for later recall (up to 15 steps each) in memory location: 1- 17. *RCL (?) {n} Recall the test conditions that have been saved (up to 15 steps each) in memory location 1 - 50. 18.
  • Page 43: Talker Functions

    3.2.2.2 Talker Functions The message of {string + ending code} will be sent when the instrument is assigned as TALKER. The ending code consists of CR+LF+EOI. The string is dependent on the present status. There are several commands with the "?". These commands send the testing value by ASCII string.
  • Page 44 1. STATUS To check the present status, with status code. Output from is: STATUS_X--8 bytes note: "_" denotes a space 2. STEP To check the present step. Output form is STEP_XX--7 bytes 3. MODEL To check the testing mode. Output form is MODE_X--6 bytes 4.
  • Page 45: Sample Quickbasic Program

    If the instrument is required to display saved item, just use SHOW? command If the instrument is required to display more than one testing value, no matter what the order of parameters, the output will display the following. [STATUS], [STEP],[MODE],[SOURCE],[MESSAGE],[TIMER],[CHAN] any two parameters separated by a ","...
  • Page 46 'ask user for mode, voltage, current, ramp and test time PRINT "MODE 1 = AC, 2 = DC" INPUT MODE$ IF MODE$ = "" OR MODE$ > "2" OR MODE$ < "1" THEN GOTO 50 'check mode is AC/DC hipot PRINT "INPUT VOLTAGE IN kV"...
  • Page 47 'get data from G5000 CALL IBWRT(G5000%, "SHOW SOURCE|MEASURE") 'ask for voltage and current levels CALL IBRD(G5000%, d$) 'read current and voltage levels PRINT "DATA IS:"; d$ 'output data to the screen PRINT #1, d$ + STAT$ + TIME$ + " " + DATE$ 'store data and status to open file CLOSE #1 Maintenance &...
  • Page 48: Scanner Interface

    Guardian 5000. Proceed as follows: • Remove the three screws which secure the Guardian 5000 top cover to the rear panel. The top cover is removed by lifting up and back, out of the front panel groove. •...
  • Page 49: Scanner Connections

    3.3.3 Scanner Connections Before connecting the scanner to the Guardian 5000 or connecting devices for test Press the STOP key and make sure the red DANGER light is not on. Refer to the diagrams that follow for a typical scanner connection. Figure 3-2 is connection to the 5000-01 for hipot or insulation resistance (IR) tests.
  • Page 50 Sheathed banana plug retaining bracket) to (orange) to alligator sheathed banana plug clip (red) Control (black) cable UNKNOWN HIGH To Guardian 5000 Guardian 5000 SENSE rear panel scan Output Connectors connector DRIVER Figure 3-2 5000-01 Scanner Connection (one, two or more scanners) Maintenance &...
  • Page 51: Scanner Programming

    High Voltage or Low connections. Connections for high voltage are indicated in red and low in green. When the scanner and Guardian 5000 are connected (25 pin interconnect cable) the instrument will accept entry of scanner connections.
  • Page 52 Programmed Scanner Connections as Shown in Figure 3-2 When using more than one scanner the initial parameter setting, St-b must be setup for the number of scanners connected. Refer to paragraph 2.9. Connection of up to 8 scanners (5000-01 thru 5000-04) for a total of 64 channels, hipot or IR testing or up to 8 scanners (5000-02 &...
  • Page 53: G16 International Power Strip

    The G16 International Power Strip allows connection of standard corded products from several different countries. These being: Switzerland Italy Continental Europe United States Denmark United Kingdom Australia Refer to Figure 3-4 for connection of the G16 International Power Strip to the Guardian 5000. HIGH-VOLTAGE UNKNOWN HIGH SENSE DRIVER White Black Green...
  • Page 54 www.valuetronics.com...
  • Page 55: General

    Attention: Service Department Shipments sent collect can not be accepted. Calibration Calibration of the Guardian 5000 is recommended on an annual basis. If the unit is returned to QuadTech for factory calibration refer to paragraph 4.2 for instructions. Using the calibration procedure below the instrument can be calibrated by a qualified service person if traceable calibration equipment and standards are available.
  • Page 56: Calibration Procedure

    Table 3-1 Equipment for Calibration Description Requirements AC/DC Voltmeter Measure range, 0 to 5KV, 0.1%. AC/DC Current Meter Measure range, 0 to 6KV, 0.1%. 10 MΩ Load Resistor 0.25W 420 kΩ Load Resistor 5W 80 kΩ Load Resistor 50 kΩ Load Resistor 0.1 Ω...
  • Page 57: Ac Voltage Calibration

    To enable calibration: With the instrument in standby status (Stop button previously pressed and no lights blinking) remove the front panel calibration seal and push (using pen or pencil point) the recessed switch through the hole in the front panel (to the in position). Press ENTER and then [7] [9] [3] [1] Display...
  • Page 58: Dc Voltage Calibration

    4.3.3 DC Voltage Calibration Connect the DC voltmeter between the H.V. OUTPUT and the LOW DRIVER terminal. Press [UP] or [DOWN] key as necessary to display Display OFST Press [OFF] key to display Display 0.05KV .500mA 0.0 sec Press [STOP] [START] ;...
  • Page 59: Ac Current Calibration

    4.3.5 AC Current Calibration Connect a load resistor (10 Mohms) between the Hipot H.V. OUTPUT of the Guardian 5000 and the High terminal of the AC ammeter. Connect the Low terminal of the AC ammeter to the LOW DRIVER terminal (black) of the Guardian 5000.
  • Page 60: Dc Current Calibration

    4.3.6 DC Current Calibration Connect a load resistor (10 Mohms) between the Hipot H.V. OUTPUT of the Guardian 5000 and the High terminal of the DC ammeter. Connect the Low terminal of the DC ammeter to the LOW DRIVER terminal (black) of the Guardian 5000.
  • Page 61: Gc Calibration

    4.3.7 GC Calibration Connect a 4 terminal load resistor (0.1 ohms) between the HIGH/LOW DRIVER and HIGH/LOW SENSE of the Guardian 5000. Connect the 30 A AC ammeter in series with the HIGH DRIVER terminal. Press [UP] or [DOWN] key as necessary to display...
  • Page 62: Finalize Calibration

    4.3.8 Finalize Calibration Press ENTER and then [7] [9] [3] [1] Display CAL OFF / CAL ON / CAL TEST CAL OFF : calibration data install zero CAL ON : calibration finished, in normal operation CAL TEST : into calibration procedure Press [OFF] key : to change CAL OFF / CAL ON / CAL TEST...