T8200-HD データシートの表示（PDF） - Amphenol Aerospace

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T8200-HD

Telaire Wall Mount CO2, Humidity and Temperature Transmitters

Amphenol Aerospace 

Note: Applies when used in typical indoor ambient air.

Consult Telaire if other gases or corrosive agents are

part of the application environment.

CO2 Calibration Guarantee

Telaire is serious about minimizing maintenance, so

each single-channel sensor (T8100/T8300) comes with

a lifetime calibration guarantee. And each dual channel

sensor has a two-year calibration guarantee (T8200).

Calibration Interval

For T8100 and T8300 series, no calibration is required

due to ABC Logic. For T8200 series, annual calibration

is recommend for the best accuracy. However,

most applications using T8200 series could extend

the calibration interval. For the humidity sensor, no

calibration is required. Replacement humidity sensors

are available.

If a Telaire 8000 series single channel sensor drifts out

of calibration range, it can be sent back to Telaire for

a free factory calibration. Further information on the

guarantee is available on our website.

Ventostat wall mount dimensions

Sensor Accuracy & Field Calibration

CO2 ABC Logic Self Calibration

T8100 and T8300 single channel sensors employ the

patented ABC (Automatic Background Calibration) Logic

self-calibration system. ABC Logic virtually eliminates

the need for manual calibration in applications where

the indoor CO2 level drops to outside levels during

unoccupied periods (e.g. during evening hours). ABC

Logic is a special software routine in the sensor

that remembers the background readings for 14

consecutive evenings, calculates if there is a sensor

drift, and then corrects for it.

T8200 – Dual Channel

The T8200 dual channel sensor can be described as

a CO2 channel that measures gas concentration and

a reference channel that measures the sensor signal

intensity. The dual channel sensor performs periodic

self-calibrations using the reference channel. The self-

calibrations are approximately every 24 hours. During

the self-calibration the sensor ppm reading is frozen, it

will not react to changing CO2. The calibration time is

adjustable but nominally two minutes.

Telaire recommends periodic gas calibration depending

on the application accuracy requirements. While the

reference channel corrects for changes over time, a

field calibration using nitrogen gas or alternatively

ambient calibration will immediately restore the highest

level of accuracy. Refer to the calibration manual for

details.

With ABC Logic enabled, the sensor will typically reach

its operational accuracy after 25 hours of continuous

operation at a condition that is exposed to ambient

reference levels. Sensors will maintain accuracy

specifications with ABC Logic enabled, given that

it is at least three times in 14 days exposed to the

reference value and this reference value is the lowest

concentration to which the sensor is exposed.

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