1
OPERATING INSTRUCTIONS
3 Function, 12 Range Digital Multi-Meter
GDT-311
Read this owners manual thoroughly before use and save.
1.1 FUNCTIONS (Figure 1)
1. 2000 count digital display
2. 14 position
3. AC Volts
4. DC Volts
5. Resistance
6. Off Dial Selection
7. Low Battery Indicator
8. Common Input Jack
9. Positive Input Jack
1.1 METER FUNCTIONS
Meter Type:
Manual
Functions:
3
Ranges:
12
Display Count:
2000
Input Impedance:
10 Meg Ohm
AC Volt Ranges:
200 / 500 (2.5% + 5 digits)
DC Volt Ranges:
200m / 2000m / 20 / 200 / 600 ±(1.2% + 2 dgts)
Resistance Ranges:
200 / 2000 / 20k / 200k / 2000k ±(1.5% + 2 dgts)
Operating Environment
Indoor Use
Operating Temperature:
0°C – 40°C
Storage Temperature:
-10°C – 50°C
Relative Humidity:
0% – 75%RH (0°C – 31°C)
0% – 50%RH (31°C – 40°C)
Altitude:
Up to 2000m
Ingress protection degree: IP40
Pollution degree:
2
Battery Type:
9 Volt
Battery Life:
100 hours with carbon-zinc cells, 200 hours with
alkaline cells under normal conditions.
Overrange Indication:
The three least significant digits are blank and
the number “1” is displayed at the left when the
range capacity is exceeded by the input.
Polarity Indication:
Negative displayed, positive implied
Size (LxWxH):
5.51" x 2.83" x 1.26"
Weight:
Approximately 110g (without batteries)
Test lead type:
ETL, cETL, CE, CAT III 600V 1A
Agency Approvals:
ETL, CE, CAT III 600V
Note: Accuracy is given for one year at 23°C ± 3°C rH<70%
CONTENTS
1. Meter Functions
2. Read First
2.1 For Your Safety
3. Operating Suggestions
3.1 AC Volts
3.2 DC Volts
3.3 Resistance
4. Battery Replacement
7
3
2
9
4
1
6
5
6
8
1.0 METER FUNCTIONS
