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Application Note
TG Field Calibration 153-0047-0B 1/11/2022
Applies To: Senva TG Series with UL
Description: Recommendations for field calibration of TG sensors.
OVERVIEW
The TG series products provide you with the ability to field calibrate the sensors to help correct for this
drift. Senva recommends annual field calibration on all TG sensors in order to keep the sensors
operating properly within their intended application. For combustible and refrigerant sensors, a 6
month calibration period is recommended.
EQUIPMENT
Contact Senva (866-660-8864) to buy calibration gas kits and shrouds which will contain all necessary
equipment for each sensor.
If using gas not provided by Senva, please ensure your calibration gas is not expired and that it meets
the below requirements for concentration (PPM or %) and you are using a 0.5 LPM regulator. It is
also recommended to calibrate using Senva’s gas shrouds to ensure proper gas allocation.
Carbon Monoxide Nitrogen Dioxide
• 100 PPM Certified
• 0.5 LPM Regulator
• Tygon or Silicone Tubing
• TG-CO Gas Shroud (CALSHROUD-CO)
• 10 PPM Certified
• 0.5 LPM Stainless Steel Regulator
• Tygon Tubing
• TG Gas Shroud (CALSHROUD-TGUL)
Methane, Propane, Hydrogen Oxygen
• 50% LEL Certified
• 0.5 LPM Regulator
• Tygon or Silicone Tubing
• TG Gas Shroud (CALSHROUD-TGUL)
• 20.9% Certified
• 0.5 LPM Stainless Steel Regulator
• Tygon Tubing
• TG Gas Shroud (CALSHROUD-TGUL)
Refrigerant Gases H2S, NH3
• 1000 PPM Certified
• 0.5 LPM Regulator
• Tygon or Silicone Tubing
• TG Gas Shroud (CALSHROUD-TGUL)
• 25 PPM Certified
• 0.5 LPM Stainless Steel Regulator
• Tygon Tubing
• TG Gas Shroud (CALSHROUD-TGUL)
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