Rigol DM3000 Series - Equipments for Test

RIGOL
Service Guide for DM3000 Series
3-2
Equipments for Test
The equipments in table 3-1 are recommended for testing DM3000 Series Digital
Multimeter (also for calibration). If the exact equipment is not available, use the
accuracy requirements shown to select substitute test equipments.
Table 3-1 Recommended Equipments
Test and
Calibration Item
Recommended
Equipment
Accuracy Requirement
Zero Calibration
None
4-terminals short using only copper
interconnections
DC Voltage
Fluke 5520A
<1/5 instrument 24 hour spec
Dc Current
Fluke 5520A
<1/5 instrument 24 hour spec
Resistance
Fluke 5520A
<1/5 instrument 24 hour spec
AC Voltage
Fluke 5520A
<1/5 instrument 24 hour spec
AC Current
Fluke 5520A
<1/5 instrument 24 hour spec
Frequency
Fluke 5520A
<1/5 instrument 24 hour spec
Capacitance
Fluke 5520A
<1/5 instrument 24 hour spec
Test Consideration
In order to make all the test results more creditable, you are suggested to comply with
the following recommendations during testing:
1. Provide proper working voltage for equipments;
2. Ensure a stable test ambient with temperature between 18 °C and 28 °C;
3. Make sure the ambient relative humidity is less than 80%;
4. More than an hour’s warm-up should be done before testing or calibrating;
5. Use copper connector to minimize thermal offset voltage;
6. Use Shielded Twisted Pair with double insulating layer as short as possible to
minimize its resistance and noise.
Because DM3000 Series Digital Multimeter is a type of high accurate measurement
instrument, you must take special care to protect testing procedure against other
disturbs being produced.