Condec DLR3110 - Manual (Page 5)

Introduction 1
About This Manual
This manual is intended for use by service technicians
responsible for installing and servicing the DLR3110
Digital Pressure Calibrator.
The DLR3110 series rack-mount combines the DLR
Digital Pressure Calibrator with the Orion vernier for
calibration of a wide variety of pressure sensing and
measuring devices.
The DLR3110 utilizes a repeatable sensor coupled to
microprocessor-based electronic circuitry and a
selectable units conversion display system to provide
digital representation of measured pressure. The unit
has one test port. Dependent on model, a front panel
mounted gauge tells the operator system pressure and
includes a pressure regulator so the operator can not
over-pressure a unit under test. Test hose is supplied
standard for the customer. Front panel buttons provide
selection of the desired functions, including zeroing
(GAGE models only).
Before attempting to use either style
pressure calibrator, the following
instructions must be read and
understood by personnel using the
equipment. This is a high-pressure system. Only
personnel formally trained in the use of pneumatic
pressure equipment should be permitted to operate it.
Potentially dangerous conditions can be produced
through negligent handling or operation of the console
due to the high pressure used within the unit.
These units are strictly for use with pneumatic pressures.
Erroneous readings and potential damage could result
from the introduction of hydraulic fluids into the internal
tubing lines.
A u t h o r i z e d d i s t r i bu t o r s a n d t h e i r
employees can view or download this
manual from the Condec distributor site
at
www.4condec.com .
1.0 Introduction
Using microprocessor technology, the rack-mountable DLR3110 instrument offers a combination of features,
performance, versatility and reliability not previously available in a single, rack-mount pressure calibration
instrument. Some of the features of the DLR3110 are listed below:
• Streamlined, multi-function keyboard.
• Selectable configurations, automatic set-up mode and multiple conversion units.
• Based on model, accuracy equal to or better than ±0.05%, ±0.1% or ±0.25% of indicated value from 20%
of full scale.
• Alpha-numeric display prompting provides the operator with functional status information during both
operation and calibration.
• A manually adjustable regulator (when applicable) allows the maximum system input pressure to be
adjusted to any desired value higher (typically 20 – 50%) than the full scale range of the device being
tested. This regulator helps protect the unit under test from being inadvertently over-pressurized.
• No manual alignment or potentiometer adjustments are required for system calibration. (50,000
displayed graduations; ten-point linearity compensation; automatic gain adjustment).
• Calibration integrity: Tamper-proof design. Once calibrated, numerous safeguards guarantee the
integrity of pressure readings obtained.
• Operation: All controls, indicators and test port are accessible from the front panel. A version with test
port on rear of unit is available by special order. See Section 3.0 on page 8 for instructions on system
operation.
• For safe, clean operation, all pressure components are made of brass, copper, aluminum, or stainless steel
and proof-tested to at least 150% of maximum operating pressure. In addition, the system contains a
high-pressure burst disk and relief valves to protect both the operator and system components from harm
in the event of inadvertent over-pressurization.
The heart of this calibration system is a stable and repeatable pressure transducer. These sensors produce an
electrical output signal that is linearly proportional to the applied pressure.
Warning