Specifications

Calibration

5.6 Calibrate TA-Zero

Material Required:

•

Thermocouple

Simulator

(K-type)

Range: 0 to 600 °F

Accuracy:

±0.5 °F

Procedure:

PCA

With the analyzer turned off, first plug the simulator’s

K-type connec-

tor

into the T-AIR jack (Figure 3-2); then turn on the analyzer and

wait for its warm-up cycle to complete.

Enter the Calibration Menu Screen per Section 5.3; then choose

TA-ZERO to zero the analyzer’s room-air/primary-air temperature

channel.

Set the simulator to 32 °F (0 °C).*

Wait until the MEASURED reading on the screen stabilizes. Then use

the

and

ENTER

keys to enter an APPLIED value that equals 32 °F

(0 °C).

Typical Calibrate TA-Zero Screen During Calibration Procedure:

CALIBRATE TA-ZERO

MEASURED 37.0°F

APPLIED 0032.0°F

Press the

RUN

key to calibrate the analyzer’s MEASURED value to

that

of the APPLIED value. At this time the Calibrate Menu Screen is

redisplayed.

The TA-Zero calibration range is 0 – 5 °C (32 – 41 °F). Any attempt to

calibrate outside this range will cause the analyzer to display the

message BAD CALIBRATION ENTRY.

5-6

Instruction 0024-9219