DTH51-MAN
P. 6
Tro u b l e s h o o t i n g
S p e c i f i c a t i o n s
Power button must be depressed for more than
1 second
No display
Sensor-set extended?
Batteries installed correctly?
Remove batteries for one minute, reinstall and reboot
Display disappears
Auto Power Off function programmed for too
short interval (see manual to adjust or disable)
E-1 or E-5 displayed on
Sensor-set or infrared measurement
top, middle or bottom lines circuit malfunction (return for repair)
Measured temperature exceeds maximum or minimum
allowed (Ambient between -4˚ to 122˚F)
E-2 or E-3 displayed on
(DP -90.4˚ to 122˚F)
middle line
If measured temperature is within range - Sensor
set malfunction (return for repair)
Measured temperature exceeds maximum or minimum
allowed (Surface between -40˚ to 932˚F)
E-2 or E-3 displayed on
(Ambient -4˚ to 122˚F)
top line
If measured temperature is within range - infrared
circuit malfunction (return for repair)
E-9 on top line
-Calibration Process failure -
Check battery power level
Check ambient temperature (73˚F)
Seal around Cal salt-bottle faulty
Other (not listed)
Call UEi (800) 547-5740
Ambient temperature range -4˚ to 122˚F (-20˚ to +50˚C)
RH% range
0 ~ 100% RH
Wet bulb range
-6.9˚ to 122˚F (-21.6 to 49.9˚C)
Dew point range
-90.4˚ to 122˚F (-68˚ to 49.9˚C)
IR temperature range
-40˚ to 932˚F (-40˚ to 500˚C)
IR distance to spot ratio
8:1
Accuracy
RH%
±3% at 10 ~ 90%, others ±5%
Air temperature
±1˚F (0.6˚C)
IR temperature
±2% or ±2˚C (-20˚ to 450˚C)
(whichever is greater - others ±3% or 3˚C)
Response time
0.5 sec (IR sensing)
Size
175 (H) mm x 50 (D) mm x 70 (W) mm
Power
4 x 1.5V (AAA) battery
