OPERATING INSTRUCTIONS
FOR POCKET
DIGITAL MULTIMETER
WAT115A
SAFETY INFORMATION
The following safety information must be
observed to ensure maximum personal safety
during the operation of this meter.
Do not use if meter or test leads look
damaged, or if you suspect that the meter is
not operating properly.
Never ground yourself when taking electrical
measurements. Do not touch exposed metal
pipes, outlets, fixtures, etc., which might be at
ground potential. Keep your body isolated
from ground by using dry clothing, rubber
shoes, rubber mats, or any approved
insulating material.
Turn off power to the circuit before cutting,
desoldering, or breaking the circuit. Small
amounts of current can be dangerous.
Use caution when working above 60V DC or
30V AC rms. Such voltages pose a shock
hazard.
When using the probes, keep fingers behind
the finger guards.
Measuring voltage which exceeds the limits
of the multimeter may cause damage to the
meter and expose the operator to a shock
hazard. Always be aware of the meter voltage
limits as stated on the front of the meter.
SPECIFICATIONS
Display: 3
1/4
digit liquid crystal display (LCD)
with a maximum reading of 3999
Polarity: Automatic, positive implied,
(-) negative polarity indication.
Overrange: “OL” mark indication.
Low Battery Indication: The “ “ is
displayed when the battery voltage drops below
the operating level.
Measurement Rate: 2 times per second, nominal.
Auto Power Off: approx. 10 minutes.
Operating Environment: 0°C to +40°C at <70%
R.H.
Storage Temperature: -20°C to + 60°C at
< 80% R.H. with battery removed from meter.
Temperature Co-efficient: 0.1 x (specified
accuracy) per °C. (0°C to 18°C, 28°C to 40°C).
Power: Two 1.5 button-type batteries
(IEC# LR-44, NEDA # 1166A).
Battery Life: 70 hours continuous operation.
Dimensions: 125mm (H) x 60mm (W) x
24mm (D).
Weight: Approx 110g including batteries and
case.
(Accuracy at 23°C 5°C, <75% R.H.)
+
-
+
-
Range Resolution
Accuracy Input Impedance Overload Protection
DCV
ACV
(50-60Hz)
OHM
Diode Test
Continuity
NON-CONTACT VOLTAGE INDICATOR: Detects voltage from 70V to 600V AC 50Hz -60Hz
4V 1mV
10M
Ω
40V 10mV
400V 100mV
2.0% rdg + 2dgts
9.1M
Ω
600V 1V
4V 1mV
10M
Ω
40V 10mV
400V 100mV
4.0% rdg + 5 dgts
9.1M
Ω
600V 1V
400
Ω
100m
Ω
2.0% rdg + 5 dgts Open circuit Volts -1.2 Vdc
4k
Ω
1
Ω
40k
Ω
10
Ω
2.0% rdg + 4 dgts
450V DC or AC rms
400k
Ω
100
Ω
4M
Ω
1k
Ω
3.0% rdg + 4 dgts Open circuit Volts -0.45 Vdc
40M
Ω
10k
Ω
5.0% rdg + 5 dgts
2V 10mV
3.0% rdg + 3 dgts Test current 1.2mA 450V DC or AC rms
400
Ω
1
Ω
Audible indication: < 25
Ω
Response Time: 500ms 450V DC or AC rms
600V DC or AC rms
+ -
+ -
+ -
+ -
+ - + - + -
