QuadTech 1865 Bedienungsanleitung
1865 Megohmmeter/IR Tester
Instruction Manual
Form 150073/D5
©QuadTech, Inc., 1992
5 Clock Tower Place, 210 East
Maynard, Massachusetts, U.S.A. 01754
October, 2006
Telephone 978-461-2100
Sales 800-253-1230
Facsimile 978-461-4295
Website www.quadtech.com
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.
WARNING
Potentially dangerous voltages may be present on front and rear panel terminals. Follow all
warnings in this manual when operating or servicing this instrument. Dangerous energy levels
may be stored in capacitors tested by this unit. Always make sure the high voltage indicator is
not on when connecting or disconnecting the unknown.
!Product will be marked with this symbol (ISO#3684) when it is necessary for the user to
refer to the instruction manual in order to prevent injury or equipment damage.
Product marked with this symbol (IEC417) indicates presence of direct current.
Product will be marked with this symbol (ISO#3684) when voltages in excess of 1000V
are present.
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Page 3 of 87
Contents
Warranty ............................................................................................................7
Specifications............................................................................................................9
Accessories ............................................................................................................11
Safety Precautions ...................................................................................................13
Condensed Operating Instructions ........................................................................15
Introduction - Section 1
1.1 Unpacking and Inspection .............................................................................21
1.2 Product Overview ..........................................................................................21
1.3 Controls and Indicators..................................................................................22
1.3.1 Front Panel Controls and Indicators .................................................22
1.3.2 Rear Panel Controls and Connectors ................................................24
1.4 Installation .....................................................................................................25
1.4.1 Dimensions ........................................................................................25
1.4.2 Instrument Positioning.......................................................................25
1.4.3 Power Requirements..........................................................................25
1.4.4 Safety Inspection................................................................................27
Operation - Section 2
2.1 Terms and Conventions .................................................................................29
2.2 Startup............................................................................................................29
2.3 Zeroing...........................................................................................................30
2.4 Connection to Device Under Test..................................................................30
2.5 Measurement Procedure ................................................................................32
2.5.1 General...............................................................................................32
2.5.2 Default Measurement Conditions......................................................33
2.5.3 Automatic Measurement Mode..........................................................34
2.5.4 Manual Measurement Mode..............................................................36
2.6 Menu Functions .............................................................................................36
2.6.1 General...............................................................................................36
2.6.2 Setup Menu........................................................................................37
2.6.2.1 Voltage..................................................................................37
2.6.2.2 Charge Time..........................................................................38
2.6.2.3 Dwell Time ...........................................................................38
2.6.2.4 Measure Time .......................................................................38
2.6.2.5 Discharge Time.....................................................................39
2.6.2.6 Mode.....................................................................................39
2.6.2.7 Range ....................................................................................40
2.6.2.8 Limit......................................................................................43
2.6.2.9 Stop on Pass..........................................................................44
2.6.2.10 # to Average........................................................................44
Page 4 of 87
Contents (Continued)
Operation - Section 2 (Continued)
2.6.3 I/O Menu............................................................................................45
2.6.3.1 Display Type.........................................................................45
2.6.3.2 Result Format........................................................................46
2.6.3.3 RS-232 ..................................................................................47
2.6.3.4 IEEE-488...............................................................................48
2.6.3.5 Handler..................................................................................48
2.6.3.6 Results to Floppy ..................................................................48
2.6.4 Utilities Menu....................................................................................50
2.6.4.1 Save Setup.............................................................................51
2.6.4.2 Recall Setup..........................................................................53
2.6.4.3 Zero.......................................................................................54
2.6.4.4 Lock Out ...............................................................................55
2.6.4.5 Calibration ............................................................................55
2.6.4.6 Set Time/Date .......................................................................56
2.6.4.7 Elapsed Time ........................................................................57
2.6.4.8 Calibration Date....................................................................57
2.6.4.9 Set Contrast...........................................................................58
2.6.4.10 LCD Backlite......................................................................58
2.7 Input/Output Interface....................................................................................58
2.7.1 I/O Interface.......................................................................................58
2.7.2 IEEE-488 Interface ............................................................................60
2.7.3 Sample Program for National Instruments GPIB Card......................65
2.7.4 Sample Program for IO Tech GPIB Card..........................................66
2.7.5 RS232 Interface .................................................................................67
2.7.6 Sample Program for RS232...............................................................68
2.7.7 Results to Printer................................................................................69
2.8 Error Messages ..............................................................................................70
Applications - Section 3
3.1 Insulation Resistance Testing ........................................................................73
3.2 Test Sample Resistivity Measurements.........................................................74
3.3 Capacitor Insulation Resistance.....................................................................75
3.3.1 General...............................................................................................75
3.3.2 Charge Time Constant .......................................................................76
3.3.3 Discharge Time..................................................................................76
3.4 Resistance Measurements..............................................................................77
3.5 Measurement of Voltage Coefficient.............................................................77
3.6 Guarded, 3 Terminal Measurements..............................................................78
Page 5 of 87
Contents (Continued)
Theory Section 4
4.1 General...........................................................................................................79
4.2 Instrument Description ..................................................................................79
4.2.1 Basic I2000 Instrument Architecture.................................................79
4.2.2 1865 Instrument Modules..................................................................80
4.2.3 I2000 Instrument Options..................................................................81
Maintenance/Calibration - Section 5
5.1 General...........................................................................................................83
5.2 Instrument Return ..........................................................................................83
5.3 Routine Maintenance.....................................................................................83
5.3.1 Battery Replacement..........................................................................84
5.3.2 Resetting of Time and Date ...............................................................85
5.3.3 Loss of Display Contrast....................................................................85
5.3.4 Preventive Maintenance/Cleaning.....................................................86
5.4 Calibration .....................................................................................................86
5.4.1 General...............................................................................................86
5.4.2 Calibration Procedure........................................................................86
Page 6 of 87
Page 7 of 87
Warranty
QuadTech warrants that Products are free from defects in material and workmanship and,
when properly used, will perform in accordance with QuadTech's applicable published
specifications. If within one (1) year after original shipment it is found not to meet this
standard, it will be repaired, or at the option of QuadTech, replaced at no charge when
returned to a QuadTech service facility.
Changes in the Product not approved by QuadTech shall void this warranty.
QuadTech shall not be liable for any indirect, special or consequential damages,
even if notice has been given of the possibility of such damages.
This warranty is in lieu of all other warranties, expressed or implied, including, but
not limited to any implied warranty or merchantability or fitness for a particular
purpose.
SERVICE POLICY
QuadTech’s service 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 8 of 87
Page 9 of 87
Specifications
Resistance Range: 1 x103to > 1x1014 Ω(dependent on test voltage)
1x106- >1x1014 Ωat 1000VDC
1x105- 1x1013 Ωat 100VDC
1x104- 1x1012 Ωat 10VDC
1x103- 1x1011 Ωat 1VDC
(7 ranges or auto ranging)
Resistance Accuracy:* ±[0.45% +{(Rx/Vx)(0.0005 FS + 2pA) + 30Ω/Rx}100%]
Rx: Measured resistance in ohms
Vx: Programmed voltage in volts
FS: Full scale current range in amperes
Voltage Range: 1 to 1000, Volts programmable in two ranges
Voltage Accuracy:* 1 - 100V: 1% of setting +1V
25mV resolution
100 - 1000V: 1% of setting +2V
250mV resolution
Output Voltage
Impedance: 1 kΩ±5%
Current Limited: < 2mA
Current Measure: 1x10-13 to 1x10-3 amps
Current Accuracy:* 1nA to 1mA: ±[0.5% + (0.0005FS + 2pA)]
100pA to 1nA: ±[1% + (0.0005FS + 2pA)]
1pA to 100pA: ±[10% + (0.0005FS + 2pA)]
Input Impedance: 5 kΩ±5%
Measure Limits: Pass/Fail (1 limit)
Display: LCD graphic display
Voltage warning indicator
Pass/Fail indicator
*specified at front panel connectors
Page 10 of 87
Specifications (Continued)
Test Cycle: Manual: Charge, Measure, Discharge
Automatic: Charge time: 0 -300 sec
Dwell time: 0 - 300 sec
Measure time: 0 - 300 sec (0 – 999 on later units)
Discharge time: 0 - 300 sec
I/O Interface: Standard -RS232
I/O Port (w/safety interlock)
Optional -1865-01 - IEEE-488, factory installed at unit purchase
1865-02 - Floppy Drive, 3.5", factory installed only
1865-03 - Rear panel input terminals, factory installed at purchase
1865-70 - IEEE-488, field retrofit
Input Terminals: Four sheathed banana plugs, front or rear mount (optional)
+ unknown (red) - unknown (black)
guard (blue) ground (green)
Dimensions: Bench with tilt back bail
(133.4mm high x 444.5mm wide x 406.4mm deep)
(5 1/4" x 17 1/2" x 16")
Weight: Approximately 8.2 kg (18 lbs) - Net
Approximately 11.8 kg (26 lbs) - Shipping
Environmental: MIL-T-28800D, Type 3, Class 5, Style E & F
Operating: 0°C to 50°C, stated accuracy <45% RH
Storage: -40°C to 71°C
Altitude: <2000m, Installation Category 1, Pollution Degree 1
Power: •90 - 250V •47 - 63Hz •40W max
General: •Fully programmable via menu
•Zeroing
•Stored test conditions and results
•Selected measurement units (engineering or scientific)
Accessories •Instruction Manual •AC Power Cable
Supplied: •Calibration Certificate •1 MΩand 100 kΩCapacitor Adapters
•Interlock Connector
Accessories •1865-50 Rack Mount Kit •1865-51 Shielded Lead Set
Available: •1865-52 Component Test Fixture
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