Copyright 2022 Baker Hughes Company.
English–PTC Temperature Calibrators | 47
13.5 Liquid
PTC
255(i) Specification
Specification
Liquid
PTC
255(i)
Temperature range
T
R
to 255
°C (T
R
to 491
°F)
Setting range
0
°C to 255
°C (32°F to 491
°F)
Control sensor (switchable)
Internal
External
Hysteresis
±
0.25
°C (±
0.45
°F)
±
0.025
°C (±
0.045
°F)
Air Shield (DB):
Display accuracy
n/a
±
0.08
°C (±
0.14
°F)
Temperature stability
n/a
±
0.01
°C (±
0.02
°F)
Influence of load
n/a
±
0.025
°C (±
0.045
°F)
Temperature distribution:
- Axial
n/a
±
0.08
°C (±
0.14
°F)
- Radial
n/a
±
0.05
°C (±
0.09
°F)
Dry Block (DB):
Display accuracy
±
0.5
°C (±
0.9
°F)
±
0.25
°C (±
0.45
°F)
Temperature stability
±
0.05
°C (±
0.09
°F)
±
0.02
°C (±
0.04
°F)
Influence of load
±
0.45
°C (±
0.81
°F)
±
0.1
°C (±
0.18
°F)
Temperature distribution:
- Axial
±
0.3
°C (±
0.54
°F)
±
0.3
°C (±
0.54
°F)
- Radial
±
0.15
°C (±
0.27
°F)
±
0.15
°C (±
0.27
°F)
Infrared (IR):
Display accuracy
±
0.5
°C (±
0.9
°F)
Stability
±
0.05
°C (±
0.09
°F)
Emission factor
0.9994
Surface (SU):
Display accuracy
n/a
±
1.0
°C (±
1.8
°F)
Stability
n/a
±
0.2
°C (±
0.36
°F)
Micro Bath (Stirred), Direct Filling (LI):
Display accuracy
±
0.46
°C (±
0.83
°F)
±
0.18
°C (±
0.32
°F)
Temperature stability
±
0.05
°C (±
0.09
°F)
±
0.04
°C (±
0.07
°F)
Influence of load
±
0.4
°C (±
0.72
°F)
±
0.1
°C (±
0.18
°F)
Temperature distribution:
- Axial
±
0.15
°C (±
0.27
°F)
±
0.15
°C (±
0.27
°F)
- Radial
±
0.15
°C (±
0.27
°F)
±
0.15
°C (±
0.27
°F)
Micro Bath (Stirred), Tub Insert (TI):
Display accuracy
±
0.53
°C (±
0.95
°F)
±
0.35
°C (±
0.63
°F)
Temperature stability
±
0.1
°C (±
0.18
°F)
±
0.05
°C (±
0.09
°F)