GasTech D-Guard2S Manuals

Manuals and User Guides for GasTech D-Guard2S. We have 1 GasTech D-Guard2S manual available for free PDF download: Operator's Manual

GasTech D-Guard2S Operator's Manual (68 pages)

Digital Gas Detector with Sounder Strobe

Brand: GasTech | Category: Gas Detectors | Size: 4.8 MB

Table of Contents
3
Manual Conventions
10
Warnings, Cautions and Notes
10
Limitations of Use
11
Product Markings
12
Receiving and Storage
13
Receiving
13
Inspection
13
Storage
13
Gastech Australia Contact Details
13
General Safety Practices
14
Relevant Personnel
14
Safety Communication
14
Safe Use of Equipment
14
Modifications to Equipment
14
Equipment Knowledge
14
Introduction
15
Purpose and Contents of this Manual
15
Product Identification and Type
15
Contents of D-Guard-2 Package
16
Product Description
17
Product Function
17
Description of Operation
17
Installation
18
Installation Considerations
18
General Installation Practices
19
Detector Dimensions and Mounting Orientation
19
Installation Considerations
20
Power Supplies
20
Typical Connection to a Power Supply and Controller
20
Maintaining Correct Operating Conditions
20
Mounting the Enclosure
21
Mounting Surfaces and Environment
21
Detector Location
22
Electrical Connections
23
Field Terminal Access
23
Connection Details
24
Cable Entry and Connecting
24
Conductor Preparation
25
Installation Cable Choice
25
Cable Gland
26
Refitting the Detector Cover
26
Commissioning
27
Installation Verification
27
Performance Checks
28
Equipment Required for Performance Checks
28
Bump Test Conditions
29
Bump Test Procedure
29
Detector Operating System
31
Detector Power up
31
Home Screen Features
32
User Menu Status
32
Configuration and Calibration Menu Navigation System
33
Soft-Key Functions and Icons
33
Quick-Nav Function
34
Entering the Function Screens
34
Calibration
35
Why Calibrate
35
Preparing for Calibration
35
Zero Calibration
36
Auto-Zero Calibration
36
Saving the Zero Calibration Value
37
Manual Zero Calibration
37
Notes on Zero Calibration
37
Span Calibration
37
Auto Span Calibration
38
Saving Auto-Span Calibration Values
39
Manual Span Calibration
39
Performing a Manual Span Calibration
39
Saving Manual Span Calibrations
39
Isolating the Detector During Span Calibration
39
Current Loop Output Calibration
40
Setting the 4Ma Output Current
40
Setting the 20Ma Output Current
40
Dynamic Response Time Test Function
41
Running the DRT Checks
41
Detector Configuration
42
Sensor Configurations
42
Set Guard Band
42
Set Measurement Full-Scale
43
Detector Type
43
Setting Span Gas Concentration
44
Alarm Configuration
44
Making Alarm Configuration Changes (Alarm 1 Shown)
45
Alarm 1 Trip Level
45
Alarm 1 Hysteresis
45
Alarm 1 Trip Direction
46
Alarm 1 Normal State
46
Alarm 1 Latching
46
Alarm 2 Current Settings Screen
47
Digital Data Configuration
47
HART Setup Main Screen
47
Turning HART Communications on or off
47
HART Tag Data
48
HART Tag Data - Fixed Loop Mode
48
System Configuration
48
SYSTEM Setup Main Screen
48
Turning Detector Isolation on or off
48
Internal Temperature Sensor
49
Display Colour Invert
49
Sensor Temperature Compensation
49
Set Sensor Gain
49
Set Menu Passcode
50
Detector Messages and Warning States
50
Running Information and Fault Messages
50
HART Communications Active
50
Detector Fault - Detector Over-Range
50
Detector Fault - Detector Under-Range
50
Detector Fault - Upper Operating Temperature
51
Detector Fault - Lower Operating Temperature
51
Detector Fault - Sensor Presence Failure
51
Detector Fault - Low Sensor Sensitivity
51
Fault Log and Information Screens
51
Detector Fault Log
51
Detector Information Screen
51
Resetting the Detector Life Counter
51
Calibration Fault
52
Internal Parameter Storage Fault
52
Alarm Indication
52
Warn Alarm Indication
52
Danger Alarm Indication
52
Latched Alarm Indication
52
Resetting from Alarm State
52
Temporarily Silencing an Alarm
53
Clearing an Alarm State
53
Connecting a Hart Field Communicator
54
Detector Maintenance
55
Visual Inspection
55
Hands-On (Detailed) Inspections
55
Gas Sensing Cell Replacement
56
Removing the Detector Main Board
56
Replacing the Sensor
56
General Detector Repair
57
Disposal of D-Guard 2 Components
57
Output Current Signal - Total Loop Resistance Vs Power Supply Voltage
58
Loop Resistance - D-Guard
58
With Backlight Disabled - Loop at 22Ma
58
Loop Resistance - D-Guard with Backlight Enabled - Loop at 22Ma
58
Relay Board and Sounder Options
59
Relay Board Functionality
59
Table of Functions (Identified by Silk Screen Legend on Relay Board and Photo Annotations)
60
Relay Board Connections
61
Current Loop Connection Scheme
61
Stand-Alone Connection Scheme
61
Disabling the Display Backlight
62
Chemical Compatibility
63
Cross Sensitivity - Toxic Sensors
64
Cross Sensitivity - Infra-Red Sensors
64
Environmental Effects on Detector Performance
65
Temperature
65
Pressure
65
Humidity
65
System Menu Map
66
Performance Specifications
67
General Specifications
67
Methane Detector Specifications
67
Carbon Dioxide Detector Specifications
68
Electro-Chemical Detector Specifications
68
Mechanical & Environmental Specifications
68

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