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                                  1880 

Milliohmmeter 

                                 Instruction Manual 

Form 150046/A2 

 
 

 

 

 

 

 
 

  

QuadTech, Inc., 1993 

 

 

5 Clock Tower Place, 210 East 

Maynard, Massachusetts, U.S.A. 01754 

October 2000 

 

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 levels of energy 

may be stored in capacitive devices tested by this unit.  Always make sure the high voltage 

indicator is not on when connecting or disconnecting the device under test. 

 
 

!

 

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.

 

Advanced Test Equipment Rentals

www.atecorp.com  800-404-ATEC (2832)

®

Established 1981

Summary of Contents for 1880-00

Page 1: ...may be present on front and rear panel terminals Follow all warnings in this manual when operating or servicing this instrument Dangerous levels of energy may be stored in capacitive devices tested by...

Page 2: ...Page 2 of 28...

Page 3: ...Selection 18 2 7 Measurement Speed Selection 19 2 8 Display Selection 19 2 9 Limit Setting 19 2 9 1 General 19 2 9 2 Setting Nominal Value 19 2 9 3 Setting 20 2 9 4 Enabling Pass Fail Limits 20 2 10...

Page 4: ...Page 4 of 28...

Page 5: ...acility 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 pos...

Page 6: ...Page 6 of 28...

Page 7: ...1 A 4 5V Accuracy specified at 18 C 28 C Temperature Coefficient 0 C 18 C and 28 C 50 C 0 25 x accuracy C Measure Rate 2 5 or 5 measurements sec Limit Detection High Low value comparator Value and fr...

Page 8: ...1 Meter Cable Set Accessories 1880 01 IEEE Interface factory installed Available 1880 50 Cable Set 1 meter included standard 1880 51 Cable Connector 1880 52 Test Fixture and Cable 1880 70 IEEE Interf...

Page 9: ...al for fast and precise testing in a production environment A handler interface and optional IEEE 488 interface are also available to adapt the instrument for production and automatic system applicati...

Page 10: ...inal Kelvin Connection to DUT 3 DOWN Black P B Switch Count down through 9 measurement ranges in Manual Mode 4 ZERO Black P B Switch with red LED Initiates test lead or fixture error correction when l...

Page 11: ...ch Set Nominal Value Decimal 12 ENABLE Black P B Switch with red LED Enable Limit Function when LED is lit 13 FAIL HI Red LED When lit measured value exceeds High Limit 14 PASS Green LED When lit meas...

Page 12: ...Use by Qualified Service Personnel ONLY Improper use will alter instrument calibration Enable Disable Calibration function 3 ALARM SIGNAL Audible output activated for Pass Fail 4 ALARM VOLUME Silver...

Page 13: ...E 488 interface 10 IEEE 488 Blue 24 pin connector I O connection for IEEE 488 interface 1 3 Accessories Included Table 1 3 Accessories Included Item Quantity Instruction Manual 1 Calibration Certifica...

Page 14: ...e Always use an outlet that has a properly connected protection ground To Change A Fuse WARNING MAKE SURE THE UNIT HAS BEEN DISCONNECTED FROM ITS AC POWER SOURCE FOR AT LEAST 5 MINUTES BEFORE PROCEEDI...

Page 15: ...conditions RANGE AUTO Red light on TRIGGER INT Internal with red light on DISPLAY VALUE SPEED SLOW 2 5 measurements sec LIMIT SET ENABLE off Red light off Since the instrument defaults to internal tri...

Page 16: ...ld be symmetrically positioned with the incoming cables on the same side Cable Cable Red Black P I P I Right Way Cable Cable Black Red P P I I Wrong Way Figure 2 1 Test Lead Positioning for Zeroing Ke...

Page 17: ...0 Test Lead Clips Figure 2 2 Device Under Test Pin Function 1 P 2 I 3 Guard 4 I 5 P 1 2 3 4 5 Figure 2 3 TEST Connector Configuration 2 4 Measurement Procedure Once the instrument has been powered up...

Page 18: ...e Table 2 1 Measurement Ranges Full Scale Full Scale Range 20m 200m 2 20 200 2k 20k 200k 2M Resolution 1u 10u 100u 1m 10m 100m 1 10 100 To return from a manual range setting to autoranging press the R...

Page 19: ...ON or indicator lamp ON LIMIT SET must be enabled to select a display of Refer to paragraph 2 9 for setting a nominal value and limits 2 9 Limit Setting 2 9 1 General The limits are set using the thum...

Page 20: ...etween the two limits The status of the audible pass fail alarm is dependent on the rear panel setting i e it can be set to sound on a pass or a fail refer to paragraph 2 10 To enable the limit compar...

Page 21: ...value is lower than LOW LIMIT 2 FAIL HI Measured value is higher than HIGH LIMIT 3 PASS Measured value within limits 4 EOT End of Test 5 EXT TRIG External Trigger Input low level 6 5 VCC 5 Volt DC su...

Page 22: ...he identifications below SH1 Source Handshake PP0 Parallel Poll AH1 Acceptor Handshake DC1 Device Clear T8 Talker DT0 Device Trigger L4 Listener C0 Controller SR0 Service Request E1 Electrical Interfa...

Page 23: ...defaults to auto ranging R0 on power up or on any device clear command DCL The Set commands duplicate front panel test conditions listed below The instrument defaults to slow S0 comparator off S3 dis...

Page 24: ...r ranges when test lead zeroing is enabled Table 2 4 Output Data Format Range Measurement Results Resistance R Value Resistance Over Indication R1 R m R 999999 m R2 R m R 999999 m R3 R R 999999 R4 R R...

Page 25: ...PRINT R 380 FOR I 1 TO 8 390 SET G CALL IBWRT DEV3 SET 400 CALL IBRD DEV3 R 410 PRINT I R 420 NEXT I 430 END 2 12 Operation with 1880 52 Test Fixture Cable The 1880 52 Test Fixture Cable provides a me...

Page 26: ...wire Instrument zeroing should be performed once the test fixture is connected For information refer to paragraph 2 2 on Instrument Zeroing The fixture contacts should be shorted with bus wire the lar...

Page 27: ...QuadTech for service please call our Customer Care Center CCC at 800 253 1230 for return material authorization RMA It will be necessary to include a Purchase Order Number to insure expedient processi...

Page 28: ...ed 11 11 CALIBRATION switch on rear panel may be ON 22 22 Internal EEPROM read write error initialize instrument with power up Service may be required 33 33 A D converter failure service required C LO...

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