Specifications - Teledyne 212R Instruction Manual

Thermal Conductivity Analyzer
APPENDIX

Specifications:

Ranges: Three decade ranges: Minimum Full scale(ppm)
Range ID:
Detector:
Signal Output: 0-1VDC negative ground
Accuracy:
Operating
Temperature:
Sample
Requirement:
Display:
Mounting:
Response Time:
Stability:
Power
requirement:
28
20 ppm Hydrogen balance Argon
25 ppm Hydrogen balance Nitrogen, Air
100 ppm Nitrogen balance Argon, Helium
100 ppm Helium balance Air
150 ppm Nitrogen, Carbon Monoxide balance Hydrogen
200 ppm Oxygen balance Argon
3 range ID contacts
Local Range ID LED'S
Thermal conductivity sensor
4-20maDC Isolated ground
±2% full scale for most binary mixture
at constant temperature. ± 5% of Full
Scale over operating temperature (once
temperature equilibrium has been achieved)
20 – 30°C (68° F to 85° F)
Sample: 0.3SCFH
Reference: 0.1SCFH
Digital LED read out (3½ Digit)
Flush panel mount.
90% of full scale less then 60 seconds.
For most application.
Less then 2% full scale drift over 24
hours
110VAC, 50/60Hz (220VAC optional)
Teledyne Analytical Instruments
Model 212R