User Manual

BULLETIN H-TH
Model TH-10 Hygro-Thermometer Pen
Specifications– Calibration and Operating Instructions
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, ,U.S.A. Fax: [phone] e-mail: [e-mail]
Lit-By Fax: [phone]
DESCRIPTION
This portable advanced meter can measure RH from 10 % to
90% and Temperature from 14 to 113˚ (-10 to 45˚C). Advanced
features include MIN/MAX Memory, Push-button Calibration,
Display Hold, and Automatic Power Off. The Model TH-10K kit
includes Calibration bottles and a hard shell carrying case.
METER DESCRIPTION
1. RH/Temperature Sensor
2. POWER ON/OFF button
3. Data HOLD button
4. MIN/MAX Memory button
5. Calibration and units select button
6. Memory Reset button
7. RH Display
8. Temperature Display
9. Function Displays
OPERATION
Measurements
Press the ON/OFF button to turn the meter ON. After a 5 second
initialization, RH will be displayed in the upper display and
temperature will be displayed in the lower display.
Data Hold
Press the HOLD button to freeze the reading in the display.
“HLD” and the last reading will appear in the display.
Press and hold the RESET button until the “HLD” icon disappears
from the display to return the meter to normal operation.
MIN/MAX Memory Recall
1. Press and hold MIN/MAX button until “MIN” appears on the
display. The reading will then be the lowest humidity and temper-
ature measurements made since the meter was turned on or last
reset.
2. Press and hold MIN/MAX again until “MAX” appears on the
display. The reading will then be the highest humidity and
temperature measurements made since the meter was turned on
or last reset.
Press the MIN/MAX key again to return to normal operation.
Min/Max Memory Reset
Press and hold the RESET button until “88.8” appears in the
display to reset (clear) the MIN/MAX memory.
Automatic Power Off (Sleep Mode)
The meter will automatically shut off after a period of approxi-
mately 20 minutes. To defeat this mode, press and hold the
MIN/MAX button while turning power on. Release the ON/OFF
button after the display initializes. “n” will appear in the display,
indicating that the non-sleep mode has been activated.
Sleep mode will be re-activated when the meter is turned off.
Setting Temperature Units (C or F)
CAUTION! The meter’s calibration can be corrupted if this proce-
dure is not followed exactly as stated.
1. With the meter off, press and Hold the recessed F/C button
(use a paper clip or similar object to press this button) and press
the ON/OFF button. Release the F/C button when the F and C
appear in the display.
2. Press the MIN/MAX key to select C or F on the display.
3. Press the recessed F/C button to store the selection. “S” will
appear in the display.
4. Turn the meter off.
Note: Accidently pressing the RESET button during this proce-
dure will corrupt the meter’s calibration.
Error Messages
An error message will appear on the display if the meter fails an
internal diagnostic test.
E2: Calibration error. Recalibration is necessary.
E5: RH sensor failure. Repair/replacement is necessary.
SPECIFICATIONS
RH Sensor: High precision thin-film capacitance type
Temperature Range: 14 to 122˚F (-10 to 50˚C)
RH Range: 10 to 95% RH
Resolution: Temperature: 0.1˚; RH: 0.1%
Accuracy: Temperature: ±1.8˚F (±1.0˚C); RH: ±5% (at 25˚C)
DC Power: 2032 button battery (150 hour battery life)
Response Time: 120 seconds
Dimensions: 6.9 x 1.6 x 06˝ (175 x 42 x 16 mm)