Parr Instrument 6200 - Manual (Page 10)

11
6200
Calorimeter Operating Instruction Manual
Overview
The 6200 Calorimeter has been
designed to provide the user with:
•
A traditional design calorimeter with
removable oxygen bomb and bucket.
• A
moderately priced calorimeter which
uses real time temperature
measurements to determine heat leaks
using a controlled calorimeter jacket.
• A
high precision calorimeter capable of
exceeding the repeatability and
reproducibility requirements of all
international standard test methods.
• A
compact calorimeter requiring
minimum laboratory bench space.
• A modern intuitive graphical user
interface for ease of operation and
training.
• A calorimeter with up to date digital
hardware, software and
communications capabilities.
• A calorimeter that is cost effective and
which can incorporate a user’s current
bombs, buckets, and accessories.
Removable Bomb
The Model 6200 calorimeter utilizes the
Parr 1108 oxygen bomb. More than 20,000
of these reliable oxygen combustion bombs
have been placed in service on a world wide
basis. This bomb features an automatic
inlet check valve and an adjustable
needle valve for controlled release
of residual gasses following
combustion. They are intended for
samples ranging from 0.6 to 1.2
grams with a maximum energy
release of 8000 calories per charge.
The 1108 oxygen bomb is made of high-
strength, high nickel stainless steel
designed to resist the corrosive acids
produced in routine fuel testing. An
alternative 1108CL bomb is available,
constructed of an alloy containing additional
cobalt and molybdenum to resist the
corrosive conditions produced when burning
samples containing chlorinated compounds.
The Model 6200 can also be equipped
with a variety of special purpose oxygen
bombs for unusual samples and/or
applications. The 1104 high strength
oxygen bomb is designed for testing
explosives and other potentially hazardous
materials. The 1109/1109A semimicro
oxygen bombs can be fitted along with its
unique bucket to test samples ranging from
25 to 200 mg.
Removable Bucket
The A391DD removable bucket has
been designed to hold the bomb, stirrer and
thermistor with a minimum volume of water
and to provide an effective circulating
system which will bring the calorimeter to
rapid thermal equilibrium both before and
after firing.
1 CONCEPT OF OPERATION
1-1