12391 NIST CAL CERT Simpson, 12391 NIST CAL CERT Datasheet - Page 14

• Manufacturer Part Number: 12391 NIST CAL CERT
• Description: Analog Multimeters 260-8P VOM NIST CAL CERT W/O DATA
• Manufacturer: Simpson

Specifications of 12391 NIST CAL CERT

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.
4.
4.1
Reset Button:
Multifunction instruments (VOMs) such as the 260-8P are intended as general
purpose measuring Instruments for use in low power circuitry such as found in
consumer appliances, TV and radio receivers, and in general laboratory applica-
tions. Their use is not recommended in high voltage, high power circuitry where
operator errors and inadequate personal protective measures could result in
serious injury from arcing or explosion. Such circuitry is found in industrial or
commercial applications such as induction (r-f) heaters and broadcast transmit-
ters, power substations and distribution centers, X-ray equipment, large motor
controls, etc. Working in the high voltage section of such equipment requires
single-function, often specially designed instruments used by trained personnel
who adopt appropriate protective equipment and procedures.
This section of the manual contains information required to use and operate the
260-8P in a safe and proper manner.
The following precautions are suggestions and reminders of commonly recog-
nized safe practices to be adopted and specific hazards to be avoided and are
not implied to be sufficient to safeguard untrained personnel in all circumstances.
Neither is this manual a substitute for technical manuals covering the equipment
in which measurements are to be made. Always refer to the equipment manual
and its specific warnings and instructions and observe them as well as those
contained herein.
a.
b.
c.
d.
e.
OPERATION
Safety Precautions
The 260-8P should only be used by personnel qualified to recognize shock
hazards and trained in the safety precautions required to avoid possible
injury.
Do not connect any terminal of this Instrument to a circuit point at which a
voltage exceeding 1000V AC or DC may exist with respect to earth ground.
(Ref. Table 1-1, Item 16.)
Turn off power and discharge any capacitors in the circuit to be measured
before connecting to or disconnecting from it.
Before using this Instrument, check accessories (if any) and test leads for
missing, damaged, deteriorated or otherwise faulty insulating parts. Do not
use, or permit the use of equipment with faulty insulation until it has been
properly repaired.
Always wear safety glasses when working with electrical circuitry.
set on the zero mark, reverse the direction of rotation of the
zero adjuster slightly to introduce mechanical freedom or
“play”, but insufficient to disturb the position of the indicat-
ing pointer. This procedure will avoid disturbances to the
zero setting by subsequent changes in temperature, hu-
midity, vibration, and other environmental conditions.
The white button to the right of the output jack is the reset
button of the overload protection circuit.
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