Global Specialities PRO-57 Operating Instructions Manual

PRO-57

Tweezer Digital Multimeter

OPERATING INSTRUCTIONS

SAFETY INFORMATION

EMC: Conforms to EN61326-1.

The following safety information must be
observed to insure maximum personal safety
during the operation of this meter:

Use the meter only as specified in this manual
or the protection provided by the meter might
be impaired.

Do not use the meter if the 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 under test before
cutting, unsoldering, or breaking the circuit.
Small amounts of current can be dangerous.

When using the probes, keep your fingers
behind the finger guards on the probes.

Measuring voltage which exceeds the limits of
the multimeter may damage the meter and
expose the operator to a shock hazard.
Always recognize the meter voltage limits as
stated on the front of the meter.

SPECIFICATIONS

Display: 3000 counts.
Polarity: Automatic, ( - ) negative polarity

indication.

Overrange: " OL " mark indication.
Low battery indication:

The " " is displayed when the battery

voltage drops below the operating level.
Measurement rate: 4 times per second,
nominal.

Auto power off: approx. 10 minutes.
Operating environment:

0℃ to 40℃ ( 32℉ 104℉ ) at < 70% R.H.

Storage temperature:

-20℃ to 60℃ ( -4℉ to 140℉ ) at < 80% R.H.

with battery removed from meter.

Temperature Coefficient:

0.1 x ( specified accuracy ) per ℃. ( 0℃ to

18℃, 28℃ to 40℃ ).

Power: 3.0V button-type lithium battery x1,

CR2032.

Battery life: 100 hours continuous operation.
Dimensions:

205mm (H) X 40mm (W) X 24.5mm (D).
Weight: Approx. 3.5 oz. ( 100g ) including
battery .

(Accuracy at 23

℃±5 ℃

, <70% R.H.)