JUMO SIRAS P21 DP User manual

40302400T90Z001K000
V1.00/EN/00728473/2022-07-28
JUMO SIRAS P21 DP
Differential pressure transmitter
Operating Manual

Contents
Contents
1 Basic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.1.1 Warranty conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.2 Current document issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.3 Other applicable device documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.4 Definition of terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.5 Symbols and signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.5.1 Warning symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.5.2 Note symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.2 Qualification of personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.3 Safety measures for mounting, establishing the electrical connection, maintenance, and
cleaning 12
2.4 Safety measures during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.5 Hazardous materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.6 Acceptance of goods, storage, and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.6.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.6.2 Checking the delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.6.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.6.4 Packaging and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.7 Returning devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3 Device Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Areas of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4 Identifying the device version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4.2 Order details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4.3 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.4 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
5.2 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5.3 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
5.4 Voltage supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.5 Mechanical features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.6 Environmental influences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.6.1 Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Contents
5.6.2 Average temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6.3 Protection type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6.4 Climate class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6.5 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6.6 Mechanical load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.6.7 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.7 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5.8 Approvals and approval marks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
6 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1 Before mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.2 Unscrew the front ring or case lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.3 Rotating the LCD (display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6.4 Rotating the housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6.5 Process connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
6.6 Bracket for wall and pipe mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6.7 Level measurement without a diaphragm seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
6.7.1 Measuring arrangement in open or closed containers with ± and 0 to 1 bar measuring rang-
es 37
6.7.2 Measuring arrangement for steam layering and ± measuring ranges . . . . . . . . . . . . . . . . .38
6.7.3 Measuring arrangement for steam layering and a measuring range of 0 to 1 bar . . . . . . . .38
6.8 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
6.8.1 Measuring arrangement for flow measurement with pitot tube . . . . . . . . . . . . . . . . . . . . . . .40
6.8.2 Measuring arrangement for flow measurement with orifice plate . . . . . . . . . . . . . . . . . . . . .41
6.8.3 Installation for flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
7 Safety Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.1 Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7.2 SIL 3 connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
7.3 Safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
7.4 Validity of the Safety Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
7.5 Relevant standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
7.5.1 Terms and abbreviations according to DIN EN 61508 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
7.5.2 Failure rates and SFF for type 403024 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.5.3 Failure rates and SFF for type 403028 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.5.4 Calculation of PFDavg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.6 Regular tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
7.6.1 Proof test A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
7.6.2 Proof test B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
7.6.3 Proof test C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
7.7 Determination of Safety Integrity Level (SIL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
7.7.1 Average probability of dangerous failure on demand PFDavg . . . . . . . . . . . . . . . . . . . . . . .52

Contents
7.7.2 Average frequency of a dangerous failure per hour (PFH) . . . . . . . . . . . . . . . . . . . . . . . . . .52
7.7.3 Safety-relevant system properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
7.7.4 Overall accuracy of the safety function – example calculation . . . . . . . . . . . . . . . . . . . . . . .54
7.8 Safety-relevant parameterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
7.8.1 Startup protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
8 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.1 Installation notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
8.2 Device with cable gland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
8.3 Device with M12 connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
9.1.1 Display illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
9.1.2 Contrast of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
9.1.3 Operation timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
9.1.4 Display operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
9.1.5 Plain text display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
9.2 Operation with rotary knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
9.2.1 Rotary knob commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
9.3 Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
9.3.1 The level concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
9.3.2 Normal display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
9.3.3 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9.3.4 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
9.3.5 Device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
9.4 Parameterization and editing protection, safety function . . . . . . . . . . . . . . . . . . . . . . . . . . .76
9.4.1 Parameterization and editing protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
9.4.2 Activating the safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
9.4.3 Deactivating the safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
10 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
10.1 Data flow diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
10.2 Description of the configuration options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
10.2.1 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
10.2.2 Device data submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
10.2.3 Display/Operation submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
10.2.4 Analog input submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
10.2.5 Analog output submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
10.2.6 HART® submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
10.2.7 Service submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Contents
10.3 Level measurement configuration with a pressure specification - recommended (tank emp-
ty, tank full) 91
10.4 Level measurement configuration without a pressure specification . . . . . . . . . . . . . . . . . . .92
10.4.1 In closed containers with ± measuring ranges or 0 to 1 bar . . . . . . . . . . . . . . . . . . . . . . . . .92
10.4.2 For steam layering with ± measuring ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
10.5 Configuration for flow measurement with pitot tube or standard orifice plate . . . . . . . . . . . .95
11 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
11.1 Maintenance plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
11.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
11.3 Overcoming errors and malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
11.3.1 General errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
11.3.2 Error list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
11.3.3 Measured value errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
12 HART® 7 specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
12.1 Device identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
12.2 Variable codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
12.3 HART® commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
12.4 Burst mode commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
12.5 Performance data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
13 Certificates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
13.1 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
13.2 Examination certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
13.3 SIL & PL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
13.4 China RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118

7
1 Basic information
1 Basic information
1.1 General information
This document contains all the information required to ensure the product is used safely and as intended.
Preventing personal injury and material damage
• Ensure you have read and fully understood the document as well as the safety information and warn-
ings
• Store the document in its entirety in an easily accessible location, and so that it can be read in full at
all times
• Contact the manufacturer if you have any questions about the product or document
1.1.1 Warranty conditions
Improper use, failure to observe this manual, the use of underqualified personnel, or unauthorized mod-
ifications to the device that are not included in this manual, or that are even prohibited, release the man-
ufacturer from liability for any resulting damage. In these cases, the manufacturer's warranty no longer
applies.
1.2 Current document issue
The manufacturer reserves the right to update specific information in this document without notice. The
version and the date of issue will be revised each time the document is updated.
1.3 Other applicable device documentation
This document is supplemented by the documents listed below:
To find the documents, enter the number of the product group in the search bar on the JUMO website.
1. Identify the version (1) and date
of issue (2) on the title page of
the document.
2. Scan the adjacent QR code or
follow the hyperlink to download
the latest document issue and
further information about the
product.
qr-403024-en.jumo.info
40605000T90Z000K000
V . /DE/00729318/2020-0 - 1100 60
(1) (2)
Product group Document type
403024 Data sheet – JUMO SIRAS DP
409601 Data sheet – flow measurement with pitot tube
409602 Data sheet – flow measurement with orifice plate
Flow product check list

1 Basic information
8
1.4 Definition of terms
1.5 Symbols and signal words
1.5.1 Warning symbols
DANGER!
The signal word "DANGER" indicates an immediate danger.
Non-observance will lead to death or serious injury.
The instructions in the warning notice must be observed and followed!
WARNING!
The signal word "WARNING" indicates an imminent danger.
Non-observance can lead to death or serious injury.
The instructions in the warning notice must be observed and followed!
CAUTION!
The signal word "CAUTION" indicates an imminent danger.
Non-observance can lead to minor or moderate injury.
The instructions in the warning notice must be observed and followed!
NOTICE!
The signal word "NOTICE" indicates possible damage to property.
Non-observance can lead to damage to devices, systems or the environment.
Observe the instructions in the note for avoiding damage!
1.5.2 Note symbols
Use in document Definition
Medium, measurement medium Gases and liquids without solids content
Product lifecycle Product identification, acceptance of the goods,
storage, installation, connection, operation, trou-
bleshooting, maintenance, disposal
NOTE!
This symbol refers to important information about the product, its handling, or additional benefits.
NOTE!
This symbol is used in tables and indicates that further information is provided after the table.
?
REFERENCE!
This symbol refers to further information in other sections, chapters, or other manuals.

9
1 Basic information
FURTHER INFORMATION AND DOWNLOADS
This document uses QR codes and hyperlinks to provide further information, downloads, and contact
options via the Internet.
DISPOSAL!
At the end of its service life, this device and any batteries present do not belong in the trash! Please en-
sure that they are disposed of properly and in an environmentally friendly manner.

1 Basic information
10

11
2 Safety
2Safety
2.1 Intended use
The differential pressure transmitter JUMO SIRAS P21 DP (type 403024) is a device for measuring pres-
sure or differential pressure, or for measuring flow according to the differential pressure principle in gas-
es and liquids without solids content.
With the 4 to 20 mA output signal, you can transfer the measured values to an automation system. The
current output is the only analog interface of the device.
When the SIL function is activated, you are allowed to use the device as a safety measuring probe in a
control circuit with SIL 2. With two devices working in parallel, you achieve SIL 3.
The user is responsible for choosing the right material required for the process, and for complying with
the specifications stated in the technical data, in the data sheet, and in the Safety Manual (e.g., the pro-
cess and ambient temperature, positive pressure ranges, pressure surges).
Unprofessional or improper use of the device can lead to application-related risks (e.g., corrosion due to
selecting the wrong material, or consequential damage due to incorrectly installing or adjusting the de-
vice).
JUMO shall not be held liable for damage resulting from unprofessional or improper use.
NOTE!
The safety function is only valid for "safety-related output signals". The device checks these signals
when activating the safety function as part of the validation.
NOTE!
The device is not suitable for safety applications in the sense of the Pressure Equipment Directive 2014/
68/EU.
NOTE!
This product is built based on state-of-the-art technology and is safe to use. It has been tested and was
shipped from the factory in safety-instrumented, perfect working order.
A safe working and operating environment protects the user from death or serious injury, and protects
the product and plant against damage.
As a result, it is essential to observe and take on board the following safety information!
Usage Suitable Not suitable
Continuous measurement of pressure
or the fill level or flow derived from it
x
For conductive and non-conductive media x
SIL 2/SIL 3 safety applicationsa
aTo achieve SIL 3, you must use two devices in parallel
x
In potentially explosive areas x

2 Safety
12
2.2 Qualification of personnel
The personnel deployed must meet the following requirements in all phases of the product lifecycle:
• Trained electrical, mechanical, and plant engineering personnel.
• Members of personnel are familiar with this documentation and the safety information and warnings
it contains.
2.3 Safety measures for mounting, establishing the electrical connection,
maintenance, and cleaning
Adequately prepare authorized, qualified personnel
• Ensure you have read and fully understood the operating manual, in particular the safety information
and warnings
• Contact the manufacturer if you have any questions or queries
Ensure a safe working and operating environment
• Check the environmental influences to which the device will be exposed
• Observe the installation notes
• Switch off the voltage and secure it so that it cannot switch on again
• Stop medium circulation, empty the pipes
• Use only suitable tools when working on the device and plant
• Check that the process connections are leak-tight during startup, operation, and any subsequent
startups
• Observe the relevant accident prevention regulations and safety requirements for electrical devices
2.4 Safety measures during operation
Create a safe operating environment over the product's entire service life
• Only ever use the device for its intended purpose
• Do not place the device or process connections under mechanical strain
• Systematically check that the process connections are leak-tight
• Protect the device from electromechanical interference, UV radiation, and the weather (when using
outside)
• Only perform modifications and repairs to the product if expressly permitted by the operating manual
2.5 Hazardous materials
Using hazardous materials as a medium may result in abrasive and corrosive damage to components
of the product that come into contact with the medium. The medium may leak and present a fire hazard
and a risk to health.
Carry out a risk assessment taking into consideration the safety data sheet for the relevant hazardous
substance for mounting, operation, maintenance, cleaning, and disposal:
• Comparison and systematic checking of the durability of the components of the product that come
into contact with the medium and the admissible environmental influences.
• Assessment of the risk to people and the environment.
• Assessment of the fire hazard due to the product materials, the admissible environmental influences,
and the voltage supply.

13
2 Safety
2.6 Acceptance of goods, storage, and transport
2.6.1 Scope of delivery
Options
2.6.2 Checking the delivery
• Ensure that the packaging and its contents are undamaged.
• Check the delivery for completeness against the packing slip and order details.
• Inform the supplier immediately if there is any damage.
• Store damaged parts until clarification is received from the supplier.
2.6.3 Storage
Improper storage may result in damage to the device.
• Store the device in a dry and dust-free environment.
• Observe the device storage temperature range, see "Storage", Page 28.
2.6.4 Packaging and transport
If the device is not protected properly against external influences, it may become damaged during trans-
port.
• Transport the device in an impact-proof packaging solution that protects it against moisture and dirt.
• Also comply with the admissible storage temperatures while the device is being transported.
• Protect all electrical and mechanical connections from damage.
1× JUMO SIRAS P21 DP – device in ordered version including calibration certificate
1× JUMO SIRAS P21 DP operating manual including Safety Manual
1 × licence code for JUMO setup program for JUMO SIRAS P21
USB HART® modem, part no. 00443447
Further deliverable accessories – see data sheet 409700
Shut-off valves, measurement device holders, transition pieces, seals

2 Safety
14
2.7 Returning devices
WARNING!
Risk of injury due to hazardous substance residue in device
Risk of serious injuries in the event of contact with the medium!
Before returning the device to the manufacturer, rinse hazardous substances out of all hollow spaces
in the device, and neutralize them!
Proceed as follows to return devices for repairs or recalibration:
1. Rinse hazardous substances out of all hollow spaces in the device, and neutralize them!
2. The Supplementary sheet for product returns must first be completed correctly and signed. Then en-
close it with the shipping documents and attach it to the packaging, ideally on the outside.
3. Use the original packaging or a suitably secure container for sending the device.
Further information on this chapter:
2.8 Disposal
WARNING!
Risk of injury due to hazardous substance residue in device
Risk of serious injuries in the event of contact with the medium!
Before disposing of the device, rinse hazardous substances out of all hollow spaces in the device,
and neutralize them!
Cleaning the device chapter 11 "Maintenance", Page 97
DISPOSAL
Devices and/or replaced parts should not be placed in the trash at the end of their service life as they
consist of materials that can be recycled by specialist recycling plants.
Dispose of the device and the packaging material in a responsible and environmentally friendly manner.
For this purpose, observe the country-specific laws and regulations for waste treatment and disposal.

15
3 Device Description
3 Devic e Description
The purpose of the device is to measure pressure and fill level, monitor minimum, maximum, and range
values of gases and liquids without solids content, as well as measuring flow according to the differential
pressure principle. It provides highly accurate measurements and readings, and is easy to use. The
housing and sensor are manufactured from high-grade stainless steel.
The device can be programmed via the rotary knob and the LCD display or via the HART®interface us-
ing a handheld device or using a PC. This enables you to adapt the device for various different types of
measuring tasks. For operation via the HART®interface, there is a specially developed WindowsTM-
based software that you can use.
For flow measurement, connect the two pressure inputs of the device to a pipe upstream and down-
stream of an orifice plate according to DIN EN ISO 5167-2 or to a pitot tube. By means of the pressure
difference measured upstream and downstream of the orifice plate/pitot tube, the device can almost pro-
portionally output the flow through the pipe.
The pressure transmitter with 4 to 20 mA and HART® protocol has been assessed in terms of functional
safety and is certified by TÜV Nord according to DIN EN 61508/-1/-2/-3, edition 2.0. These measuring
devices are suitable for process fill level monitoring and process pressure monitoring up to SIL 2. Please
see the Safety Manual for further information on this topic.
WARNING!
If the device, or another device connected to it, fails, e.g., due to an operating error, this could
result in dangerous malfunctioning of the entire plant.
Therefore, please make sure you read and observe the section "Safety Manual", Page 43 in this op-
erating manual.
NOTE!
Read this operating manual before putting the device into operation. Keep the operating manual in a
place that is accessible to all users at all times.
All necessary settings are described in this operating manual. Nevertheless, should problems be en-
countered during startup, please do not carry out any unauthorized manipulations. This could endanger
your rights under the warranty!
Please contact the nearest branch office or the head office.
3.1 Areas of application
Application areas
The device can be used for various applications, e.g.
• For level measurements in pressurized containers
• For foam formation
• In containers with mixers or sieve installations
• For liquid gases
• For default level measurements
• For flow measurements
Measured process variables
Differential pressure
Calculated process variables
• Flow (volume or mass)
• Fill level (level, volume, or mass)

3 Device Description
16
Functional safety use
WARNING!
Loss of safety function during parameterization!
During parameterization, the safety function does not function. This could result in a dangerous operat-
ing situation.
Make sure that the machine that uses the safety signal is in a safe operating state during parame-
terization of the device.
The device uses the standard 4 to 20 mA current interface, has been evaluated in terms of functional
safety, and certified by TÜV Nord according to DIN EN 61508-1 up to -7, Edition 2.0.
You can use the device for process fill level monitoring and process pressure monitoring up to SIL 2/PLc
(one device) SIL 3/PLd (two devices). Please refer to chapter 7 "Safety Manual", Page 43 in this oper-
ating manual for further information on this topic.
If you would like to use the safety function, you must apply the corresponding parameterization and ac-
tivate the safety function chapter 9.4.2 "Activating the safety function", Page 78.
(1) When using one device
SIL 2/PLc
(2) When using two devices:
SIL 3/PLd
(3) Probability per hour of a failure
(1)
SIL
DIN EN 61508
PL
DIN EN ISO 13849-1
(2)
a
1
No
equivalent
10-4 -5 -6 -7 -8 10 10 10 10
bcde
2 [4]3
(3)

17
4 Identifying the device version
4 Ident ifying the d evice version
Device overview
The device is available in the following three versions:
(1) Short housing, stainless steel (2) Long housing, stainless steel
(3) Long housing, precision casting (Ex-d version)
(2) (3)(1)

4 Identifying the device version
18
(1) Bezel (2) Rotary knob
(3) Nameplate (4) Housing lid, rear
(5) Flange for cable fitting (6) Cable fitting (standard)
(7) LCD display (8) Differential pressure sensor unit
(9) Pressure measuring cell (10) Process connection
(11) Vent valve (12) Functional ground
(13) Voltage supply (14) Test connections for HART®/
voltage supply
(15) Connection M12, voltage supply,
short housing
123
(13)
(14)
(15)
(4)
(4)
(12)
(1) (2) (3)
(7)
(4) (5) (1) (2)
(8)
(9)
(9) (10)
(10)
(8)
(11)
(11)
(6) (3)
Moritz-Juchheim-Str.1, 36039 Fulda,Moritz-Juchheim-Str.1, 36039 Fulda,
GERMANY,www.jumo.netGERMANY,www.jumo.net
SIRAS P21 DP
Moritz-Juchheim-Str.1, 3 6039Fulda,Moritz-Juchheim-Str.1, 36039 Fulda,
GERMANY,www.jumo.netGERMANY,www.jumo.net
SIRAS P21 DP

19
4 Identifying the device version
4.1 Nameplate
Housing
The identification marking can be found on the side of the device housing.
Date of manufacture
The device's date of manufacture (year and calendar week) is part of the fabrication number. Numbers
12 to 15 denote the year of manufacture and the calendar week.
Safety function
If you activate the safety function, you can use the device in a safety-related control circuit as a measur-
ing probe for pressure, fill level, or flow.
In this capacity, the individual device achieves Performance Level c (PLc) according to
DIN EN ISO 13849-1 and Safety Integrity Level 2 (SIL 2) according to DIN EN 61508. When using two
devices in a redundant setup, you achieve Performance Level d (PLd) according to DIN EN ISO 13849-
1 and Safety Integrity Level 3 (SIL 3) according to DIN EN 61508. The systematic capability for hard-
ware and software (SC) according to DIN EN 61508 corresponds to Class SC 3.
Before putting the device with activated safety function into operation, you must first define the relevant
parameters in the chapter 10 "Configuration", Page 81 of the Safety Manual. Transfer these parameters
to the device. This is carried out either on the device itself or using the supplied software.
You can only activate the safety function on the device itself.
(1) DataMatrix code fabrication number (2) Note: "Read the operating manual!"
(3) TAG no. – customer-specific ID (4) Fabrication number
(5) Protection type provided by housing (IP
Code)
(6) Temperature range
(7) Output signal (8) Voltage supply
(9) Nominal measuring range (10) Default measuring range
(11) Part no. (12) Type
(13) Type designation (14) Maximum admissible pressure
SIRAS P21 DP
Moritz-Juchheim-Str. 1, 36039 Fulda,
GERMANY, www.jumo.net
0036
(1)
(3)
(4)
(5)
(6)
(7)
(8)
(11)
(10)
(9)
(12)
(2)
(13)
(14)

4 Identifying the device version
20
4.2 Order details
(1) Basic type
403024 JUMO SIRAS P21 DP – differential pressure transmitter
(2) Basic type extension
000 None
(3) Explosion protection
0 None
1 ATEX, IECEx ia (in preparation)
2 ATEX, IECEx ia + d combined release (in preparation)
(4) Housing
1 Short, stainless steel, with M12 connectiona
2 Long, stainless steel, with cable fitting
3 Long, precision casting, with cable fitting
(5) Electrical connection
36 Round plug M12 × 1
93 Metal cable fitting
(6) Lid material
20 CrNi (stainless steel)
(7) Display
1 With display (LCD)
(8) Operation
1 With rotary knob
(9) Input – nominal measuring range
532 0 to +1 bar DP
531 -1 to +1 bar DP
533 -1 to +6 bar DP
534 -1 to +100 bar DP
(10) Output
410 4 to 20 mA, two-wire with HART®protocol
(11) Process connection
511 2 x pressure connection 1/4-18NPT according to DIN EN 837
(12) Process connection material
20 CrNi (stainless steel)
(13) Measuring system filling medium
01 Silicon oil