Honeywell CIPer 50 - Sensor Input Accuracy; Recognition of Sensor Failure of Sensor Inputs

CIPer
TM
MODEL 50 CONTROLLER – INSTALLATION AND COMMISSIONING INSTRUCTIONS
73
31-00233-02
APPENDIX 2
Sensor Input Accuracy
The internal sensor inputs of the CIPer Model 50 controller support both NTC10kΩ (Type II) and NTC20kΩ
(Type II) sensors (see also section "Universal Inputs"). The following table lists the typical minimum
accuracies of the hardware and software for temperature sensors.
Table 33. Accuracies of internal NTC20kΩ sensor inputs of the CIPer Model 50
Range
Measurement error (excl. sensor characteristics)
NTC10kΩ (Type II) sensors
NTC20kΩ (Type II) sensors
-58 … -4 °F (-50 … -20 °C)
≤ 5.0 K
≤ 5.0 K
-4 … +32 °F (-20 … 0 °C)
≤ 1.0 K
≤ 1.0 K
32 … 86 °F (0 … 30 °C)
≤ 0.5 K
≤ 0.3 K
86 … 158 °F (30 … 70 °C)
≤ 0.5 K
≤ 0.5 K
158 … 212 °F (70 … 100 °C)
≤ 1.0 K
≤ 1.0 K
212 … 266 °F (100 … 130 °C)
--
≤ 3.0 K
266 … 302 °F (130 … 150 °C)
--
≤ 5.5 K
302 … 752 °F (150 … 400 °C)
--
--
NTC10kΩ specified for -22… 212 °F (-30 … +100 °C), only.
NOTE
This is the accuracy of the internal sensor input (hardware + software [linearization]), only. This table
does not include the characteristics of the sensors, themselves (see section "Sensor Characteristics"
below). If a different sensor or sensor accuracy is required, one may instead use the inputs of, e.g., a
connected Panel I/O module.
Recognition of Sensor Failure of Sensor Inputs
The thresholds at which sensor failures – i.e., sensor breaks (SB) and short-circuits (SC) – are recognized
depends upon the given sensor type. In the event of a recognized sensor failure, the sensor inputs assume
the safety values configured in WEBs-N4. Table 34 lists the measurement ranges and the corresponding
thresholds for the recognition of sensor failure for the various different sensor types:
Table 34. Thresholds for short-circuit (SC) and sensor-break (SB) recognition
I/O configuration
Measurement range
Recognition thresholds
2…10 V
2…10 V / 4…20 mA (without pull-up)
SC: < 1.5 V / 3 mA; SB: no recognition
NTC10kΩ (Type II)
-22 … 212 °F (-30…..+100°C)
SC: < 20 Ω; SB: < -94°F (-70 °C)
NTC20kΩ (Type II)
-58 … 302 °F (-50…..+150°C)
SC: < 20 Ω; SB: < -94°F (-70 °C)
NI1000 TK6180 DIN
-58 … 302 °F (-50…..+150°C)
--
NI1000 TK5000 DIN
-22 … 302 °F (-30…..+130°C)
--
PT1000-1
-58 … 302 °F (-50…..+150°C)