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20-35-NM-DIN
Thermo Scientific 20-35-NM-DIN User Manual
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i
Mercury Free Tilt Sensor
User’s Guide
REC 4274 Rev. C
Part Number 092241
RAMSEY MERCURY FREE TILT SENSORS
FOR NON-HAZARDOUS AREAS
Manufacturer:
Thermo Fisher Scientific
501 90
th
Avenue NW
55433 Minneapolis, MN (USA)
(800) 445-3503
CONTROL
UNITS
PROBES
Model
20-35-NM-F
Model
20-54-NM-SS
Model 20-35-NM-DIN
Model 20-52-NM
Model 20-59-NM
Model
20
-
55
-
N
M
-
P
2
Table of Contents
default chapter
9
Table of Contents
9
About this Manual
12
Standards Applied and Technical Specifications
12
Who Should Use this Manual
12
Documentation Conventions
13
Organization of the Manual
13
General Precaution
14
Safety Messages
14
Safety in Maintenance
15
Safety in Use
15
How to Get Help
16
Certifications
17
Chapter 1 Introduction
19
Applications
19
Probe Models
19
Specifications
21
Control Units
21
Model 20-35-NM-F (Field Mount Version)
21
Model 20-35-NM-DIN (Internal Cabinet Version)
22
Symbol Identification
23
Table 1-1: Symbol Identification
23
Chapter 2 Installation
25
Control Unit Installation
25
Probe Installation
27
Electrical Installation
32
Figure 2-7: Control Unit Model 20-35-NM-F Terminal Wiring
32
Figure 2-8: Control Unit Model 20-35-NM-F Internal Layout
33
Figure 2-9: Control Unit Model 20-35-NM-DIN Terminal Wiring
34
Figure 2-10: Control Unit Model 20-35-NM-DIN Internal Layout
35
Chapter 3 Operation
37
System Configuration
39
Model 20-35-NM-F Function Modes
39
Model 20-35-NM-F Switches Setting
40
Table 3-2: Sw1And SW2 Settings
40
Table 3-3: SW3 Settings
40
Table 3-4: SW5 Settings
40
Table 3-6: Model 20-35-NM-DIN Function Modes Switch Settings
41
Model 20-35-NM-DIN Switches Setting
42
Table 3-7 SW1 and SW2 Settings
42
Table 3-8 SW3 Settings
42
Chapter 4 Maintenance and Troubleshooting
43
Indications of Maintenance
43
Control Unit Model 20-35-NM-F Check Procedure
44
Control Unit Model 20-35-NM-DIN Check Procedure
44
Chapter 5 Service Repair and Replacement Parts
45
Parts Ordering Information
46
Chapter 6 Decommissioning and Dismantling
47
Decommissioning of the System
47
Dismantling the Unit
47
Chapter 7 Labels
48
Control Unit Mod.20-35-NM-F Labels
48
Control Unit Mod.20-35-NM-DIN Labels
49
Probe Label
50
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Thermo Scientific 20-35-NM-DIN Specifications
General
Junction
Grounded
Interface
Miniature DIN
Type
Thermocouple
Measurement Range
-200°C to +1200°C
Operating Temperature
-40°C to +85°C
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