Operator`s manual

14
CALIBRATION
WARNING
THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID
ELECTRICAL SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN
THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.
Introduction
This section contains the maintenance information for this Digital Multimeter. This information is divided
into service information, general maintenance, a group of performance tests, a calibration adjustment
procedure, and troubleshooting. The performance tests are recommended as an acceptance check when
the instrument is first received and should be completed as necessary to verify that your DMM is
operating within the specification limits listed in SPECIFICATIONS Section. A calibration cycle of 1- year
is recommended to maintain the specifications given in SPECIFICATIONS Section of this manual. The
test equipment required for both the performance test and the calibration adjustment procedure is listed in
Table 3. If the recommended test equipment is not available, instruments having equivalent specifications
may be used.
Service Information
This DMM is warranted for a period of 1-year upon delivery to the original purchaser. Conditions of the
warranty are given on the first page of this manual and Service instructions are in the Maintenance
Section.
Calibration
NOTE:
To avoid contaminating the pcb with grease from the fingers, handle the pcb by its edges or wear gloves.
If the pcb does become contaminated, refer to the cleaning procedure given later in this section.
Table 3. Recommended Calibration
INSTRUMENT
TYPE
REQUIRED
CHARACTERISTICS
RECOMMENDED
MODEL
Calibrator DC Volts 0 to 1000V ± 0.006 %
AC Volts
100Hz
200Hz
1 kHz
10 kHz
20 kHz
50 kHz
0 to 750V
0 to 2V
0 to 750V
0 to 100V
0 to 100V
0 to 20V
± 0.06 %
± 0.06 %
± 0.06 %
± 0.06 %
± 0.1 %
± 0.5 %
DC Current 0 to 2000mA ± 0.05 %
AC Current 0 to 19mA, 100 Hz ± 0.1 %
Resistance
100 Ω, 1 kΩ
10 kΩ, 100 kΩ
1MΩ, 10MΩ
± 0.01 %
± 0.005 %
± 0.05 %
Fluke 5500
Calibration
Leads
24 “ shielded cable with a double banana plug at both
ends
Pomona 2BC-24
Calibration Access
Use the following procedure to gain access to the calibration adjustments of this DMM.
1. Set the POWER switch to the OFF position and remove the power cord plug from the receptacle in
the rear of the instrument.
2. Remove the Phillips screw from the Bottom of your DMM.
3. Grasp the front panel and slide the instrument out of the case.