iET PRS-330 series, Operation Manual, Page: 19 / 67

PRS-330 Series
OPERATION 7
Chapter 3
OPERATION
3.1 Initial inspection and setup
This instrument was tested and carefully
inspected before shipment. It should be in proper
electrical and mechanical order upon receipt.
An OPERATING GUIDE is attached to the case
of the instrument to provide ready reference to
speci
fi cations.
3.1.2 Purpose
The purpose of the PRS-330 is to source
resistance in the range of 0.1
Ω to 20 M Ω for
calibration of DMMs, meters and use as an RTD
Simulator.
3.1.3 Storage
I
f this instrument is to be stored for any lengthy
period of time, it should be sealed in plastic and
stored in a dry location. It should not be subjected
to temperature extremes beyond the speci
fi ca-
tions. Extended exposure to such temperatures
can result in an irreversible change in resistance,
and require recalibration.
3.1.4 Bench and Rack Setup
The PRS-330 should be placed on a stable fl at
work surface. A front bail is provide to make
viewing easier.
Mount the unit in a standard 19” rack if the rack
mount option is speci
fi ed.
3.1.5 Front and Rear Panel
The front panel has a capacitive touchscreen,
front binding posts, softkeys, numeric keypad
and power switch.
Front Panel
Model Ref. Description
1 Front Binding Posts
2 Capacitive Touchscreen
3 Softkeys
4 Numeric Keypad
5 Power Switch
1
2
3
4
5