GE NC22 belongs to the official supporting calibration accessory of GE Panametrics M-series dew point probes, consisting of standard reference moisture tube, sealed test joint, connecting pipeline and matched packaging box, specially used for regular span calibration and zero-point inspection of MS29, MS32, MMS35 and other alumina probes. The NC22 label is the unified identification mark for this set of standard calibration parts, commonly used with Moisture Target Series 5 panel-mounted dew point display hosts for field regular calibration work.

The standard reference tube inside NC22 adopts stable solid desiccant material, which can provide fixed constant low dew point standard environment for the inserted M probe. Staff only need to screw the moisture probe into the sealed calibration tube, wait for the reading to stabilize, then compare the host display value with the standard dew point value marked on the NC22 accessory to complete deviation correction of the probe and host. This mode avoids the need for expensive portable standard gas sources for daily routine inspection, greatly lowering the regular calibration cost of enterprises.

The sealing interface of NC22 adopts stainless steel threaded structure with good airtightness, preventing external ambient moisture from permeating into the calibration cavity and interfering with calibration accuracy. The overall kit is equipped with a shock-resistant portable storage box, convenient for laboratory calibration room use and field patrol calibration carrying. The supporting M-series probe mounting adapter is compatible with the standard thread size of all GE original insertion dew point probes, no extra conversion parts are required during use.

Matching application equipment includes GE Series5 dew point indicator, MTS6 analysis transmitters and PM880 portable dew point meters. Periodic calibration with NC22 can effectively judge the pollution and aging degree of the alumina sensitive chip inside the probe, timely remind maintenance personnel to clean the probe filter screen or replace the internal Ni2 sensitive core, preventing measurement drift of online moisture monitoring equipment in natural gas pipelines, dry compressed air and hydrogen systems.

Each NC22 calibration assembly is calibrated and filed with NIST traceable standard moisture gas before delivery, with stable standard value retention performance. Under normal sealed storage conditions, the effective service life of the standard reference tube can reach several years. Daily maintenance only needs to keep the kit sealed and stored in a dry environment; when the calibration deviation is too large, just replace the internal standard tube consumable separately instead of replacing the whole set of fixtures.

It is an essential low-cost calibration auxiliary tool for petrochemical plants, gas transmission stations, power plants and semiconductor factories to maintain the accuracy of long-term online dew point monitoring equipment, widely used in routine quality inspection and equipment periodic verification work of gas analysis systems.