Field Calibration Instructions
Overview
Brasch Generation 2 sensor boards are calibrated at the factory and have an expected
calibration duration of approximately two years. Environmental conditions may shorten or
prolong this period of time, but once the sensor parameters drift outside of acceptable
tolerances, the sensor board must be either be recalibrated or replaced.
This document outlines the procedure for performing field calibration of all Brasch Generation
2 sensor boards including:
Carbon Monoxide Models
Nitrogen Dioxide Models
Combination Models
GSE2-CM-24
GSE2-ND-24
GSE2-NCM-24
GSE2-CM-120
GSE2-ND-120
GSE2-NCM-120
GSE2-CM-Remote
GSE2-ND-Remote
GSE2-NCM-Remote
TRNS2-CM-Analog
TRNS2-ND-Analog
TRNS2-NCM-Analog
TRNS2-CM-Digital
TRNS2-ND-Digital
TRNS2-NCM-Digital
GDCP-CM-Remote
GDCP-ND-Remote
GDCP-NCM-Remote
Required:
•
Voltmeter
•
Potentiometer Adjustment Tool
•
100 PPM Carbon Monoxide Test Gas (for CO sensors)
•
5.0 PPM Nitrogen Dioxide Test Gas (for NO
2
sensors)
•
Gas Flow Regulator
•
Tubing
•
Calibration Hood
Note:
All of the above required parts (except a voltmeter) are included with Brasch CO and
NO
2
Test Gas Kits.
FG01
Rev 1.2 – January 10, 2022
1
