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Reference Manual
00809-0100-4697, Rev GA
Appendix A: Reference Data
November 2014
Reference Data
A.4.6 Differential configuration notes
Differential capability exists between any two sensor types.
For all differential configurations, the input range is X to Y where:
X = Sensor A minimum - Sensor B max.
Y = Sensor A maximum - Sensor B min.
A.4.7 Accuracy for differential configurations
If sensor types are similar (for example, both RTDs or both thermocouples), the accuracy = 1.5
times worst case accuracy of either sensor type. If sensor types are dissimilar (for example, one
RTD and one thermocouple), the accuracy = Sensor 1 Accuracy + Sensor 2 Accuracy.
A.4.8 Analog sensors 4–20mA
Two types of 4–20 mA sensors are compatible with the Rosemount 848T. These types must be
ordered with the S002 option code complete with an analog connector kit. The alarm levels,
accuracy for each type are listed in Tab le A -2 .
NIST Type E
NIST Monograph 175 –200 to 1000 –328 to 1832 ± 0.40 ± 0.72
NIST Type J
NIST Monograph 175 –180 to 760 –292 to 1400 ± 0.70 ± 1.26
NIST Type K
NIST Monograph 175 –180 to 1372 –292 to 2501 ± 1.00 ± 1.80
NIST Type N
NIST Monograph 175 –200 to 1300 –328 to 2372 ± 1.00 ± 1.80
NIST Type R
NIST Monograph 175 0 to 1768 32 to 3214 ± 1.50 ± 2.70
NIST Type S
NIST Monograph 175 0 to 1768 32 to 3214 ± 1.40 ± 2.52
NIST Type T
NIST Monograph 175 –200 to 400 –328 to 752 ± 0.70 ± 1.26
DIN L
DIN 43710 –200 to 900 –328 to 1652 ± 0.70 ± 1.26
DIN U
DIN 43710 –200 to 600 –328 to 1112 ± 0.70 ± 1.26
w5Re26/W26Re
ASTME 988-96 0 to 2000 32 to 3632 ± 1.60 ± 2.88
GOST Type L
GOST R 8.585-2001 -200 to 800 -392 to 1472 ± 0.71 ± 1.28
Terminal Temperature -50 to 85 -58 to 185 ±3.50 ± 6.30
Ohm Input 0 to 2000 ohms ± 0.90 ohms
Millivolt Input -10 to 100 mV ± 0.05 mV
1000 mV -10 to 1000 mV ± 1.0 mA
4–20 mA (Rosemount)
(1)
4–20 mA ± 0.01 mA
4–20 mA (NAMUR)
(1)
4–20 mA ± 0.01 mA
Multi-point Sensors
(2)
(1) Requires the S002 option code.
(2) Multi-point (up to 8 points) thermocouples and RTDs are available for purchase with the Rosemount 848T. Input ranges and accuracy for these sensors will depend
on the specific multi-point sensor chosen. For more information, contact your local Emerson representative.
Table A-1. Input Options/Accuracy
Sensor option Sensor reference
Input ranges
Accuracy over
range(s)
°C °F °C °F
- Transmitter with FOUNDATION 1
- fieldbus 1
- Transmitter with F 3
- Title Page 4
- 1Section 1: Introduction 5
- 2Section 2: Installation 5
- 3Section 3: Configuration 5
- AAppendix A: Reference Data 6
- DAppendix D: Function Blocks 8
- Section 1 Introduction 9
- 00809-0100-4697, Rev GA 10
- November 2014 10
- OUNDATION fieldbus Technology 10
- 1.3 Service support 11
- Section 1: Introduction 12
- Introduction 12
- Section 2 Installation 13
- 2-in. screws 14
- 2.3 Wiring 16
- RTD or ohm inputs 17
- Analog inputs 17
- 2.4 Grounding 19
- Shielded wire 20
- Grounded thermocouple inputs 21
- Analog device inputs 21
- 2.5 Switches 22
- 2.6 Tagging 22
- Transmitter tag 23
- Sensor tag 23
- 2.7 Installation 24
- 2.7.2 Using conduit entries 25
- Section 2: Installation 26
- Section 3 Configuration 27
- 3.2 Configuration 28
- 3.2.5 Alarms 29
- 3.2.6 Damping 29
- Typical profiling application 31
- OUNDATION fieldbus 33
- Section 3: Configuration 34
- Number Parameter Description 34
- OUNDATION 35
- How to use PlantWeb Alarm 39
- 3.4.3 PlantWeb alerts 40
- MAINT_ALARMS 41
- Advisory alarms 42
- RECOMMENDED_ACTION 43
- FD failed alarms 44
- Configuration 45
- FD CHECK ALARMS 47
- 3.4.7 Transducer blocks 49
- Transducer block errors 50
- Transducer block modes 50
- Automatic (Auto) 51
- Out of Service (OOS) 51
- 4.4.2 Resource block 64
- Appendix A Reference Data 65
- OUNDATION fieldbus parameters 66
- A.3 Function blocks 67
- A.4.1 Stability 68
- A.4.2 Self calibration 68
- A.4.3 Vibration effect 68
- A.4.5 Accuracy 68
- A.4.8 Analog sensors 4–20mA 69
- Reference Data 70
- Examples 71
- A.5 Dimensional drawings 72
- A.5.1 Mounting options 74
- A.6 Ordering information 75
- Approvals 77
- B.3.2 Canada 78
- B.4 Europe 79
- B.5 International 81
- B.5.1 Brazil 83
- B.5.2 China 84
- B.5.3 Japan 86
- B.6 Combinations 87
- B.8 Additional Certifications 88
- B.10 Installation drawings 90
- Product Certificates 91
- Appendix C FOUNDATION 99
- Technology 99
- C.3 Device descriptions 100
- C.4 Block operation 101
- C.5 Network communication 101
- C.5.1 LAS 102
- C.5.2 Addressing 103
- C.5.3 Scheduled transfers 104
- C.5.4 Unscheduled transfers 105
- OUNDATION Fieldbus Technology 106
- Appendix D Function Blocks 107
- Reference Manual 108
- Appendix D: Function Blocks 108
- Table 3-5 on page 11 108
- D.1.1 Functionality 110
- Filtering 111
- Signal conversion 111
- Indirect 111
- Indirect square root 112
- Block errors 112
- Alarm detection 113
- Status handling 114
- Advanced features 114
- Application information 114
- D.2.1 Functionality 118
- D.3.1 Functionality 125
- Block execution 127
- AVG_USE = 6 129
- Numerics 131
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