TA Instruments DMA 850 User Manual

AIR CHILLER SYSTEM
& CHILLER PANEL
Accessory for the Discovery DMA 850
Getting Started Guide
Revision Q Issued December 2022

TA Instruments DMA 850 Specifications

General

Brand	TA Instruments
Model	DMA 850
Category	Chiller
Language	English

Summary

Introduction to the Air Chiller System Guide

TA Instruments Manual Supplement Access

Provides access to supplemental information for the Getting Started Guide.

Safety Guidelines and Warnings

Understanding Advisory Notes and Symbols

Explains the meaning of Notes, Cautions, and Warnings for safe operation.

Regulatory Compliance Information

Applicable Safety Standards

Lists relevant safety standards for electrical equipment used in measurement.

Applicable EMC Standards

Lists relevant electromagnetic compatibility standards for measurement equipment.

Supplier's Declaration of Conformity

FCC Compliance Statement Details

Outlines the FCC compliance conditions, including operating restrictions.

Safety Information and Symbols

Explanation of Instrument Safety Symbols

Clarifies the meaning of safety symbols displayed on the ACS unit for user protection.

Introducing the Air Chiller System

System Overview and Components

Provides a general overview of the Air Chiller System and its main parts.

Air Chiller System Features

Internal Timer Functionality

Explains the operation of the internal timer for system readiness.

Transfer Line Description and Precautions

Describes the transfer line and important handling precautions.

Air Chiller System Operation

Continuous Operation Guidelines

Provides guidance on continuous operation and frost prevention.

Chiller Panel Overview

Introduces the Chiller Panel and its role in the system.

Chiller Panel Models

DMA 850/Q800 Air Chiller Panel Details

Details the DMA 850 & Q800 Air Chiller Panel, including versions.

Combined Air Chiller Panel Details

Details the Combined Air Chiller Panel for DHR ETC and DMA 850.

Accessory Specifications

Specifications for Rev. B Chiller Panels

Technical specifications for ACS with DMA 850/Q800 Rev. B panels.

Accessory Specifications Continued

Specifications for Rev. A Chiller Panels

Technical specifications for ACS with Rev. A panels.

Cooling Gas Requirements

Details the gas requirements for ACS-2 and ACS-3 operation.

Environmental and Performance Specifications

Operating Conditions and Power Requirements

Details environmental conditions, operating altitude, and electrical requirements.

Installing the Air Chiller System

Unpacking and Preparing the ACS

Procedures for unpacking, repacking, and preparing the ACS for installation.

Inspecting the ACS Accessory

Checking Shipping Damage Indicators

How to inspect TiltWatch and ShockWatch indicators for mishandling.

Choosing an Installation Location

Location Guidelines for ACS Installation

Criteria for selecting the optimal location for the ACS accessory.

Adjusting the Anti-Tilt Bar Feet

Securing the Unit with Anti-Tilt Feet

Instructions for adjusting the anti-tilt bar feet to ensure stability.

Installing the Air Chiller System

Installing the Air Chiller Panel

General process for installing the Air Chiller Panel onto the ACS.

Installing the Rev B Air Chiller Panel

Step-by-step guide to install the Rev B Chiller Panel.

Rev B Chiller Panel Installation Details

Securing the Rev B Chiller Panel

Details on attaching and securing the Rev B Chiller Panel using standoffs.

Connecting the Rev B Chiller Panel

Securing Panel and Connecting Tubing

Instructions for securing the panel and connecting tubing to the ACS Inlet.

Connecting Air Source to Chiller Panel

Gas Inlet Connection and Instrument Selection

How to connect the gas inlet and set the instrument selection knob.

DMA Air Chiller Panel Diagram (Rev. B)

Key Components of Rev. B DMA Panel

Identifies major components of the DMA Air Chiller Panel (P/N 986400.901, Rev. B).

Combined DHR/DMA Chiller Panel Diagram (Rev. B)

Key Components of Rev. B Combined Panel

Identifies major components of the Combined DHR/DMA Air Chiller Panel (P/N 405400.901, Rev. B).

Installing the Rev A/Q800 Air Chiller Panel

Attaching the Rev A/Q800 Chiller Panel

Steps for attaching the Rev A or Q800 Chiller Panel to the ACS.

Securing the Rev A/Q800 Chiller Panel

Using Cinching Strap for Panel Security

Instructions on how to use the cinching strap to secure the Chiller Panel.

Connecting Air Source to Rev A/Q800 Panel

Gas Inlet Connection and Instrument Selection

Connecting the gas inlet tube and setting the instrument selection knob.

DMA Air Chiller Panel Diagram (Rev. A)

Components of DMA Air Chiller Panel Rev. A

Identifies components of the DMA Air Chiller Panel (P/N 986400.901, Rev. A).

Combined DHR/DMA Chiller Panel Diagram (Rev. A)

Components of Combined DHR/DMA Panel Rev. A

Identifies components of the Combined DHR/DMA Air Chiller Panel (P/N 405400.901, Rev. A).

Connecting the ACS to the DMA 850

Event Cable and Transfer Line Connection

Steps for connecting the event cable and transfer line to the DMA 850.

Transfer Line Installation

Tube Insulation and Horizontal Positioning

Instructions for installing tube insulation and maintaining horizontal transfer line position.

Setting up ACS via DMA 850 Interface

Configuring Environmental Accessory

Steps to set up the ACS accessory from the DMA 850 user interface.

Installing the ACS Clamp Screen

Clamp Screen Usage and Temperature Limit

Details on using the clamp screen and its critical 400°C temperature limit.

Upgrading the Air Chiller Panel

Upgrading Rev B Panel for DHR Use

Instructions for upgrading the Rev B Chiller Panel for use with the DHR.

Rev B Panel Upgrade Procedure

Disconnecting Orifice and Removing Tube

Steps to disconnect the flow control orifice and remove tubing.

Installing Upgrade Assembly

Valve and Solenoid Upgrade Installation

Instructions for installing the Valve and Solenoid Upgrade Assembly.

Connecting Upgrade Tubing

Connecting Tubing to Flow Indicator

Steps to connect the tubing for the Valve and Solenoid Upgrade.

Upgraded Combined Panel

Final Configuration of Upgraded Panel

Notes on the upgraded Combined DHR/DMA Air Chiller Panel configuration.

Upgrading a Rev A Chiller Panel for DHR

Disconnecting Orifice from Regulator

Procedure to disconnect the flow control orifice from the pressure regulator.

Rev A Panel Upgrade: Plug and Assembly

Removing Plug and Installing Upgrade

Steps to remove the plug and install the Valve and Solenoid Upgrade Assembly.

Rev A Panel Upgrade: Fitting and Tubing

Installing Fitting and Connecting Tubing

Instructions for installing the push-to-connect fitting and connecting tubing.

Tubing Connection Verification

Ensuring Proper Tubing Fitment

Verification of tubing connections and fitment in push-to-connect fittings.

Upgraded Combined Panel (Rev. A)

Final Configuration of Rev. A Upgraded Panel

Notes on the upgraded Combined DHR/DMA Air Chiller Panel (Rev. A).

Use and Maintenance of the ACS

Using the Air Chiller System Accessory

General outline for using the ACS accessory in experiments.

Before You Begin ACS Use

Prerequisites and checks before starting to use the ACS accessory.

Starting the Air Chiller System

ACS Startup Procedure and Initial Drying

Step-by-step guide for starting the Air Chiller System, including initial drying.

Setting Correct Air Pressure

Adjusting Outlet Pressure for DMA Panels

How to set the outlet pressure regulator for DMA Air Chiller Panels.

Chiller Panel Pressure and Dryer Indicators

Setting Q800 Pressure and Dryer Status

Setting pressure for Q800 panel and interpreting dryer indicator colors.

ACS Operation Notes

Regular Power Off and Purge Recommendations

Importance of powering off and purging the ACS to prevent frost build-up.

Shutting Down, Purging, and Defrosting ACS

ACS Shutdown and Purge Procedure

Detailed steps for shutting down, purging, and defrosting the ACS.

Disconnecting ACS for Other Instruments

Instructions for safely disconnecting the ACS for use with a different instrument.

Relocating the ACS Unit

Steps for safely relocating the Air Chiller System.

Removing the ACS Chiller Panel

Removing the Rev B Chiller Panel

Procedures for removing the Rev B Chiller Panel from the ACS.

Removing the Rev A Chiller Panel

Procedures for removing the Rev A Chiller Panel from the ACS.

Maintaining the Accessory

Filter Cartridge Replacement

Guidelines for replacing filter cartridges in Rev. B and Rev. A filters.

Cleaning the ACS Accessory

Instructions for cleaning the exterior of the ACS accessory.

Troubleshooting Common Issues

Compressor and Temperature Problems

Addresses issues like compressor shut-off, restart failures, and gradual temperature loss.

Replacement Parts List

Rev. B Chiller Panel Replacement Parts

Lists replacement parts for DMA 850 Chiller and Chiller Panel (Rev. B).

Rev. A Chiller Panel Replacement Parts

Lists replacement parts for DMA 850 Chiller and Chiller Panel (Rev. A).