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MINIGAS MK5
Zellweger MINIGAS MK5 Manuals
Manuals and User Guides for Zellweger MINIGAS MK5. We have
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Zellweger MINIGAS MK5 manuals available for free PDF download: Service Manual, Operating Instructions Manual
Zellweger MINIGAS MK5 Service Manual (145 pages)
MULTIPLE DISPLAY 4-IN 1 GAS MONITOR
Brand:
Zellweger
| Category:
Measuring Instruments
| Size: 1 MB
Table of Contents
Table of Contents
7
1 General Description
13
MINIGAS Mk5 MULTI-GAS MONITOR
13
Identification Using the Part Number and Serial Number
13
Associated Equipment
15
Battery Charger
15
Figure 1.1 Minigas Mk5: Functional Block Diagram
16
Oxygen Sensor
17
Explosive-Gas Sensor
17
Microprocessor and Associated Circuits
18
TXD/RXD Port
18
Datalogging Circuit
19
Display Module
19
Power Supply
19
General Description - Battery Packs
19
General Description - Battery Chargers
20
Fast Charger
21
Figure 1.2 Fast Charger: Functional Block Diagram
21
Trickle Charger
22
Figure 1.3 Trickle Charger: Functional Block Diagram
22
Fuses
23
2 Tools and Test Equipment
25
Tools
25
Test Equipment
25
Common Test Equipment
25
Special-To-Type Test Equipment
26
Reconfiguration Equipment
27
3 Fault Diagnosis
29
Introduction
29
Self Tests
29
Initial Checks
30
Fault Codes
33
Low Battery Fault
33
Datalogging Warnings
33
ELECTRICAL TESTS - MINIGAS Mk5
34
Battery Power Supply
35
Power Consumption
35
Power Maintain ' Circuit Power and Reference Supplies
36
Switches
37
Toxic-Gas Channels
37
Oxygen Channel
37
Figure 3.1 Missing Sensor: Typical Oscilloscope Waveforms
38
Explosive-Gas Channel
39
Figure 3.2 Pellistor Power Circuit: Typical Oscilloscope Waveforms
40
ADC Circuit
41
Figure 3.3 ADC Circuit: Typical Oscilloscope Waveforms
41
Speaker Drive
42
Electrical Tests - Battery Pack
42
Figure 3.4 Speaker Drive Circuit: Typical Oscilloscope Waveforms
42
Electrical Tests - Fast Charger
43
Electrical Tests - Trickle Charger
45
Figure 3.5 Explosive-Gas Pcb Assembly
46
Figure 3.6 Digital Pcb Assembly
47
Figure 3.7 Analogue Pcb Assembly
48
Figure 3.8 Battery Pack Fuse Board
48
Figure 3.9 Battery Pack Connectors
49
Figure 3.10 Fast Charger Pcb Assembly
49
Figure 3.11 Four-Charger Bank: Interconnection Diagram
50
Figure 3.12 Trickle Charger Pcb Assembly
51
Figure 3.13 Trickle Charger Mains Transformer Connections
51
CONNECTIONS - MINIGAS Mk5 MONITOR
52
Table 3.2 Explosive-Gas Pcb to Analogue Pcb Connections
52
Connections - Battery Pack and Chargers
55
4 Maintenance
57
Introduction
57
MINIGAS Mk5 MONITOR - DISASSEMBLY and REASSEMBLY
57
Sensor Grill
58
Figure 4.1 Sensor Grill Assembly
58
Figure 4.2 Sensor Layout
59
Disassembly of the Monitor Assembly (Fig 4.3)
60
Reassembly of the Monitor Assembly (Fig 4.3)
62
Figure 4.3 Minigas Mk5: Exploded View
64
Sensor Replacement
65
Oxygen Sensor
65
Toxic Sensors
66
Explosive-Gas Sensor
67
Changes to the Monitored Gases
68
Figure 4.4 3-Pcb Assembly
68
Explosive-Gas Channel
69
Oxygen Channel
69
Toxic Gas Channels
69
Adjusting the Toxic Gas Null Voltage
70
Battery Packs - Disassembly and Reassembly
71
Rechargeable Battery Packs (Fig 4.6)
71
Dry-Cell Battery Pack (Fig 4.7)
72
Figure 4.5 Rechargeable Battery Pack: Exploded View
75
Figure 4.6 Dry-Cell Battery Pack: Exploded View
75
Battery Chargers - Disassembly and Reassembly
76
Fast Charger (Fig 4.8)
76
Figure 4.7 Fast Charger: Exploded View
78
Trickle Charger (Fig 4.9)
80
Figure 4.8 Trickle Charger: Exploded View
81
5 Software Options
83
Introduction
83
Specifying a Configuration Code
84
CONFIGURING a MINIGAS Mk5
84
Installing M4CONFIG
84
Using M4CONFIG
85
6 Testing and Calibration
87
Introduction
87
General
87
Easycal Provides the Following Facilities
87
Trickle Charger - Standard Serviceability Test
118
Spares Lists
119
Figure 7.1 Minigas Mk5 Instrument
120
MINIGAS Mk5 INSTRUMENT - SPARES LIST
121
Rechargeable Battery Pack - Spares List
124
Figure 7.2 Rechargeable Battery Pack
124
Figure 7.3 Dry-Cell Battery Pack
125
Dry-Cell Battery Pack - Spares List
126
Figure 7.4 Fast Charger
127
Fast Charger - Spares List
128
Figure 7.5 Trickle Charger
129
Trickle Charger - Spares List
130
Glossary of Terms and Abbreviations
131
Technical Bulletins and Service Notes
135
Minigas Configuration Request Form
144
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Zellweger MINIGAS MK5 Operating Instructions Manual (100 pages)
MULTIPLE DISPLAY 4-IN-1 GAS MONITOR
Brand:
Zellweger
| Category:
Measuring Instruments
| Size: 0 MB
Table of Contents
Table of Contents
7
1 General Description
11
Introduction
11
Brief Description
12
Accessories Provided with the Minigas Mk5
12
Software Options
13
2 Using the Minigas Mk5
19
Introduction
19
Front Panel Display Format
20
Preparation for Use
21
Switching on
21
Start-Up Sequence
21
Displaying the Instrument Serial Number
23
Datalogging Warnings
23
If Countdown Stopwatch Alarm Is Configured
24
Switching off
26
Display Backlight
26
Display Mode
27
General
27
Display Screens
27
Display Screen Selection Sequence
28
If Countdown Stopwatch Alarm Is Configured
29
Time-Of-Day Display
30
Zero Setting
31
Checking Zero Readings
31
Autozero Facility
31
Resetting Peak Readings
32
Watchdog Signal
33
General
33
Silent Watchdog Facility
33
Go/Nogo Mode
33
Standby Mode
34
Autorotate
35
The Datalogging Facility
35
Alarms
36
General
36
Visual Alarms
36
Audio Alarms
37
Alarm Cancelling
37
Alarm Priority
39
Instrument Warnings and Faults
40
Operational Error Indication
41
Low Battery Indication
41
Low Battery Indications
41
Calibration Failure
41
Battery Voltage Indication
42
3 Use and Transferring Data after Use
45
Introduction
45
Confined Space Entry
46
Initial Area Check
46
Confined Space Entry Checks
46
Adsorption of Toxic Gases
47
Normal Use of the Minigas Mk5
48
Area Monitoring
49
Storage of the Minigas Mk5
49
Data Transfer after Use
50
4 Routine Maintenance
53
General
53
Preventive Maintenance
53
Corrective Maintenance
54
Changing the Battery Pack
55
Charging the Rechargeable Battery
56
General
56
Fast Charger
56
Trickle Charger
57
Charging the Minigas Mk5 Batteries
57
Changing Dry-Cell Batteries
59
Sensor Grill Filter Replacement
60
Service
61
5 Field Settable Alarm Mode
63
Introduction
63
General
63
Field Settable Alarms
63
Changing Alarm Levels
64
General
64
Entering Field Settable Alarm Mode
64
Oxygen Alarms
65
Explosive Alarms
66
Toxic Alarms
67
Conclusion
70
Indication of User Configuration
70
6 Calibrating the Minigas Mk5
71
Introduction
71
General
71
Easycal Calibration Method
71
Simultaneous Zeroing
71
Tools and Test Equipment
72
Preparation for Calibration
73
General
73
Adsorption of the Test Gas
73
Purging the Gas Connections
75
Calibration Procedures
75
Entering Calibration Mode
76
Span Calibration
77
Storage of Calibration Results
81
Post Calibration
82
Setting Gas Bottle Concentrations
82
7 Specifications
85
Minigas Mk5 Specification
85
Battery Charger Specification
90
Toxic Sensor Cross-Sensitivity
91
8 Optional Accessories and Spares
93
Gas Calibration Kit
95
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