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MITRE 4000 SERIES
Contherm MITRE 4000 SERIES User Manual
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Scientifi
c Ltd
SERVICE MANUAL
MITRE 4
000
SERIE
S
Sterilising -
Standar
d/Tropicoo
l/Cooled M
odels
CO
2
CELL CULTURE INCUB
A
TORS
CONTHERM
SCIENT
IFIC LIM
ITED
P
O
BOX 30-
605
LOW
ER HUT
T
5040
TEL:
(00
64-4)
568
8034
FA
X: (0064-4
) 568 8095
EMAI
L: contherm@xtr
a.co.nz
2
Table of Contents
Contents
5
Definition of Terms
6
Introduction and Specifications
7
Performance
7
Temperature
7
Relative Humidity
8
Carbon Dioxide
8
SPECIAL NOTE for COOLED Incubators
8
Installation
9
For Your Safety
10
Operating Instructions
11
Operating Controller
11
To Set Temperature
11
To Set the Co2 Concentration
11
Confirmation of Operating Parameters
12
Tropicool Units
12
Cooled Units
12
Condensation
12
Alarms
13
Standard Alarms
13
Special Alarms
13
Power Control and Hi-Limit Panel (Right Hand Side)
14
Temperature Hi-Limit Thermostat
14
Hi-Limit Neon
14
On/Off Switch
14
Operating Control Panel
15
Up/Temp
15
Down/Co2
15
Set
15
Heat
16
Inject
16
Door
16
Alarm
16
Calibration
17
Temperature Calibration
17
CO2 Calibration
18
Thermal Conductivity Sensor
18
Auto-Cal
18
Man-Cal
19
Co2 Span Calibration
19
Notes on Calibration Procedures for THERMAL CONDUCTIVITY Sensors
20
CO2 Calubration - Infra-Red CO2 Sensor
20
User IR CO2 Calibration
20
Factory IR CO2 Calibration
21
CO2 Zero Offset Calibration
21
Verifying Cabinet Performance
23
Temporal Performance
23
Spatial Performance
23
Theory of Operation
24
Troubleshooting and Maintenance
25
No Display When Mains Switch Turned On.
25
Display on but Fan Motor Stopped
25
Enclosure will Not Heat/Cool to Temperature
25
Routine Maintenance
26
Display Present - but Controller will Not Operate Correctly
26
Display on but Showing Rubbish!
26
Suggested to be Checked Annually
26
Refrigeration System
27
Refrigeration Schematic Diagram
28
Refrigeration Unit Data
28
Parts Lists
29
Fault/Alarm Codes
30
Under/Over Temperature
30
Low CO2 in Enclosure
30
Enclosure Running on Factory Preset Values
30
CO2 Changeover
31
Moderate Electrical Noise on Mains Power Supply
31
Severe Electrical Noise on Mains
31
Servicing / Replacing Parts
32
List of Servicing Procedures
32
Servicing Procedure
33
Replacing the Main Fuse
33
Safety Requirement
33
Replacing the in Board Fuse & Checking Heartbeat LED
34
Replacing the Motor Seal & Fan Motor
36
Replacing the Infrared CO2 Sensor
39
Infrared CO2 Kit
43
Servicing the CO2 Solenoid
44
Replacing the Inner Door Seal
48
Earth Wire Revision for Display Ghost Issue on ZP22 Display
50
CO2 Calibration for Infra-Red CO2 Sensor with Front Panel Adjustment
54
User Calibration Procedure:
55
Factory Calibration Procedure
56
Replacing the Door Gasket
62
Replacing the ZP22INT PCB
64
Replacing the ZP22DSP Display PCB
66
Replacing the Heated Glass Door
68
Replacing the Temperature Sensor
71
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Contherm MITRE 4000 SERIES Specifications
General
Brand
Contherm
Model
MITRE 4000 SERIES
Category
Accessories
Language
English
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