Sapcon CASPER User manual

CASPER
Capacitance Level Limit Switch
INSTRUCTION MANUAL
Version 1.2

User Manual & Datasheet V 1.2
Contents
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Application Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
9 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10.1 For Single Point Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10.1.1 Calibration for Non-conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10.1.2 Calibration for Conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10.2 For Two Point / Pump Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
11 Cover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
11.1 For Single Point Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
11.2 For Two Point / Pump Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12 Uncover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.1 For Single Point Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.2 Two Point / Pump Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
14 Failsafe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15 Display Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15.1 STATUS LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15.2 LED Bar Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
16 Factory Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
17 Selection of Output Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
17.1 For Single Point / Two Point Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
17.2 For Pump Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
18 Indication of Output Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
19 Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
20 For Namur Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
20.1 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
20.2 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
21 Namur Isolation Barrier Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
22 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
22.1 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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User Manual & Datasheet V 1.2
22.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
22.3 Normal Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
22.3.1 Calibration for Non-conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
22.3.2 Calibration for Conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
22.4 Remote Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
22.4.1 Calibration for Non-conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
22.4.2 Calibration for Conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
23 Output Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
23.1 Low Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
23.2 High Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
24 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
25 Failsafe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
26 Factory Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
27 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
28 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
29 Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
30 Namur Selection Order Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
31 Product Selection Order Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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User Manual & Datasheet V 1.2
List of Figures
1 Casper Product Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Description of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Proper Mounting Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Casper with Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Cable Gland Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Electrical Connections (DPDT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Calibration for Non-conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Calibration Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10 Setting Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
11 Saving Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
12 Calibration with Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
13 HIGH Calibration Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
14 Setting HIGH Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
15 Saving HIGH Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
16 Low Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
17 High Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
18 DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
19 Cover Delay Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
20 Setting Cover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
21 Saving Cover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
22 Cover Delay Switch Position for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
23 Setting Cover Delay for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
24 Saving Cover Delay for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
25 Uncover Delay Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
26 Setting Uncover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
27 Saving Uncover Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
28 Uncover Delay Switch Position for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
29 Setting Uncover Delay for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
30 Saving Uncover Delay for Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
31 Sensitivity Bar Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
32 Setting Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
33 Setting Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
34 Failsafe High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
35 Failsafe Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
36 LED Indication on Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
37 Demonstration of LED Bar Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
38 Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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39 Setting Default Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
40 Saving Default Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
41 Single Point Switching without Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
42 Single Point Switching with Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
43 Two Point Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
44 Pump Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
45 Grounding Length in an Application Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
46 Calibration at safe zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
47 Casper with Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
48 Cable Gland Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
49 Electrical Connection during installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
50 Metallic Test Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
51 Calibration without Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
52 DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
53 Calibration Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
54 Setting Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
55 Saving Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
56 Calibration for Conductive Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
57 High Calibration Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
58 Setting Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
59 Saving Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
60 Air Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
61 Power ON Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
62 Remote High Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
63 High Calibration Power ON Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
64 Switch Position Low Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
65 Setting of Low Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
66 Saving of Low Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
67 Sensitivity Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
68 Sensitivity Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
69 Setting Sensitivity Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
70 Saving Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
71 Failsafe High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
72 Failsafe Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
73 Switch Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
74 Setting Default Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
75 Saving Default Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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User Manual & Datasheet V 1.2
List of Tables
1 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Application Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Error Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 Namur Isolation Barrier Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9 Operating Conditions of Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10 Switching Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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User Manual & Datasheet V 1.2
Revision History
Revision Date Author(s) Description
1.0 25 Aug 2019 RND First Version Editing
1.1 4 May 2021 RND Image Updation
1.2 3 Jun 2022 RND Namur Section Added
1
1
•Copyright: All content on this document, such as text, graphics, logos and images is the property of Sapcon Instruments Pvt. Ltd. The selection,
arrangement and presentation of all materials on this document and the overall design of this document is the exclusive property of Sapcon Instruments
Pvt. Ltd.
•The images shown in this manual may differ from the actual instrument / housing in terms of dimensions, color and design. Please refer to GA drawings
for dimensional details.
•Values (of performance) described in this manual were obtained under ideal testing conditions. Hence, they may differ under industrial environment and
settings.
General Instructions
•Instrument shouldn’t block the material filling inlet.
•Secure the cover of housing tightly. Tighten the cable glands. For side mounting, the cable glands should point downwards.
•For side mounting, provide a baffle to prevent the material from falling on the probe.
•When handling forks, do not lift them using their tines. While using them with solids, ensure that material size is less than 10mm.
•Deforming the shape of the tines may interfere with the fork’s operating frequency.
•Make all electrical connections as instructed in the manual. Don’t power on the device before verifying the connections.
Sapcon Instruments Pvt.Ltd.®7

User Manual & Datasheet V 1.2
1 Introduction
Casper is a microcontroller-based capacitance level limit
switch. It is suitable for fine, coarse, bulky solids, non-sticky
slurries, and liquids. The measuring system consists of an
electronic insert and a probe. It works by utilizing the dielec-
tric property of the application material.
Figure 1: Casper Product Image
2 Operating Principle
Casper works on the principle of capacitance. The probe
comprises a sense electrode, electrically isolated from the
metallic tank using a suitable insulator. The sense and the
vessel wall serve as the two electrodes of a capacitor with
the service material acting as the dielectric. A change in the
level of material causes a change in the dielectric, which in
turn causes the value of this tank capacitor to change.
Ø90
89
Pressure die-cast aluminium
weatherproof Housing
Cable Entry
Screwed Thread Connection
Sense
Probe Length
Figure 2: Description of Parts
3 Features
•Universal power supply of 18 - 55 V DC and 90 - 265
V AC on the same terminal.
•Customizable probe size.
•Output options: Relay, PNP and Analog.
•High temperature probe suitable for applications up to
250◦C.
•Self-diagnosis for probe and electronics.
•Popular with a wide range of materials: low-to-high
dielectric conductive materials / non-conductive mate-
rial.
4 Applications
•Brewery
•Chemicals
•Dairy
•Food and Beverages
•Grain Handling
Sapcon Instruments Pvt.Ltd.®8

User Manual & Datasheet V 1.2
5 Electrical Specifications
Please refer to Table 6 for Electrical Specifications.
PARAMETER VALUE
Input Power Supply 18 - 55V DC and 90 - 265V AC at 50Hz on same terminal
Available Output Options
•Relay SPDT , PNP
•Relay DPDT
Power Consumption
•1.5W (SPDT, PNP) at 24 V
•2.2W (DPDT) at 24 V
Switching Single-point level switching / Two-point level switching
Switching Indication For Relay 1 and Relay 2
Red - Alarm
Green - Normal
Fail-safe Two Field Selectable FS 1 & FS 2
•Open - Fail-safe High (For High Level)
•Close - Fail-safe Low (For Low Level)
Time Delay Setting 1 - 25 seconds (For both, Covered and Uncovered Delays)
Relay Rating 6 Amps at 230V AC
Table 1: Electrical Specifications
6 Mechanical Specifications
Please refer to Table 7 for Mechanical Specifications.
PARAMETER VALUE
Housing
•SCUTE: Pressure die-cast aluminium weatherproof
(Rating IP-68)
•FP2C: Cast aluminium, weatherproof & flameproof,
powder coated, suitable for Gas Groups IIA, IIB & IIC
as per IS-2148
Electrical Connector 2 x 1/2” BSP/NPT , PG 13.5
Operating Temperature 0◦C to 60◦C (Electronics)
Process Temperature Up to 250◦C
Operating Pressure Up to 10 bar
Mounting
•Screwed: 1/2",1”,1 1/2", 3/4” BSP / NPT
•Flanged: As per user specification
Probe Length 100 mm to 3000 mm
Insulation Full PTFE
Table 2: Mechanical Specifications
Sapcon Instruments Pvt.Ltd.®9

User Manual & Datasheet V 1.2
7 Application Specifications
Please refer to Table 3 for Application Specifications.
PARAMETER VALUE
Response Time 1 second
Sensitivity 1 - 5
Table 3: Application Specifications
8 Installation Guidelines
While installing the instrument, please take care of the
following points:
1. In Single Point Switching, the instrument should
be installed horizontally or vertically whereas in Two
Point Switching/Pump Control Logic it should be
vertically installed.
Material Inlet Source
Figure 3: Proper Mounting Arrangement
2. Observe that when installed directly under the mate-
rial inlet source, a canopy called baffle of appropriate
strength and size should be welded right above the in-
strument as shown.
Material Inlet Source
Baffle
Figure 4: Casper with Baffle
3. To prevent the ingress of moisture and water seepage
in side mounting position, the cable entries should al-
ways point downwards.
Figure 5: Cable Gland Arrangement
4. Secure the cover of housing tightly. Tighten the cable
glands.
5. Make all electrical connections as instructed in the
manual. Don’t power on the device before verifying
the connections.
6. Weatherproofness of enclosure is guaranteed only if
the cover is in place glands adequately tightened.
Damage due to accidental entry of water can be
avoided if the instrument is installed in a rain shade.
7. If the ambient temperature is high, the instrument
should not be installed to receive direct sunlight. In
case such a position of shade is not available, a heat
shield should be fitted above the instrument especially
if the operating temperature lies between 60◦C and
80◦C.
9 Electrical Connections
Electrical connections for the instrument will change with
the models. Please refer to figure 6 and the precautions
mentioned below before connecting the device.
Precautions for connecting casper:
•Power Supply Rating
Make sure the power supplied to the instrument is
within the specified range mentioned in Table 6.
•Connect Earth
When supplying AC power, please make sure that the
grounding screw on the housing and the earth terminal
are all connected to the plant’s earth.
•Power Supply Fluctuations & Noise
External noise or fluctuating power supplies could af-
fect performance and shorten the life of the instrument.
Use external line suppressors and fuse wires to con-
tain the risk of damage to the circuit.
AC Supply DC Supply
L (Live)
N (Neutral)
90-265 V AC 18-55 V DC
+
ENTER
CASPER
+
-
NC NCC NO CNO
3 4 561 2
COVER
UNCOVER
CALIBRATE
HI CALIBRATE
FS1
FS2
RELAY 1
RELAY 2
SENSITIVITY
1
2
3
4
5
6
ON
Figure 6: Electrical Connections (DPDT)
Sapcon Instruments Pvt.Ltd.®10