Sekonic ST-50M - Chapter 10. Sensor Calibration (Continued); Calibrating the Humidity Sensor (One-Point); Two-Point Humidity Calibration (33% RH & 75% RH)

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④

Press the

【

ALARM

】

key to return to the “Sensor calibra-

tion status” screen.

CAUTION

To cancel this setting, press the

【

ALARM

】

key and pro-

ceed to the next setting item.

10-3. Calibrating humidity sensor

①

Press the

【

ALARM

】

key twice while the “Sensor

calibration status” screen is displayed. The

『

』

and

『

』

indications will appear.

②

Press the

【

ENTER

】

key. The indication on the left

side will start blinking.

③

Use the

【▲】

【▼】

key to enter the humidity value

shown on the reference hygrometer, then press the

【

ENTER

】

key. The entered value will stop blinking to

show the setting has been completed.

④

Press the

【

ALARM

】

key to return to the “Sensor cali-

bration status” screen.

CAUTION

To cancel this setting, press the

【

ALARM

】

key and

proceed to the next setting item.

10-4. 2-point calibration of humidity sensor



Calibration at 33% RH

①

Place the sensor in a saturated salt type humidity cali-

brator or a reference humidity generating bath.

②

Press the

【

ALARM

】

key three times while the “Sensor

calibration status” screen is displayed. The

『

』

and

『

』

indications will appear.

③

Press the

【

ENTER

】

key, and the present temperature

and humidity will be displayed (C6). Wait until the humid-

ity becomes stable in the range of 33% + / -5RH.

④

When the humidity is stabilized, press the

【

ENTER

】

key.

The

『

33.0

』

indication will start blinking.

⑤

Use the

【▲】

【▼】

key to enter the humidity value that

corresponds to the present temperature shown on the

humidity calibrator or the value indicated on the humidity

bath, then press the

【

ENTER

】

key.

⑥

The indication on the left side starts count from 1 to 5,

then the humidity indication will stop blinking to show the

setting has been completed.



Calibration at 75% RH

①

Place the sensor in a saturated salt type humidity cali-

brator or a reference humidity generating bath.

②

After the 33% RH calibration is completed, press the

【

ENTER

】

key. The

『

』

and

『

』

indications will ap-

pear.

③

Press the

【

ENTER

】

key, and

the present temperature

and humidity will be displayed (C8). Wait until the humid-

ity becomes stable in the range of 75% + / -5RH.

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Sekonic ST-50M - Chapter 10. Sensor Calibration (Continued); Calibrating the Humidity Sensor (One-Point); Two-Point Humidity Calibration (33% RH & 75% RH)

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