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Version 1.0  

 

©Copyright 2011, Ambient LLC. All Rights Reserved. 

 

 

 

Page 4 

6.

 

Specifications 

6.1

 

Measurement Specifications 

The following table provides specifications for the measured parameters.   
 

Measurement 

Range 

Accuracy 

Resolution 

Temperature 

-22    to 199 °F   
(-30 to 100 °C) 

± 0.9 °F   
(± 0.5 °C) at 25°C 
± 1.5 °F   
(± 0.8 °C) otherwise 

0.01 °F / °C   

Humidity 

0 to 100% 

± 2% from 20 to 80% 
at 25°C 
± 2.5% otherwise 

0.01% 

6.2

 

Other Specifications and Features 

 

Display:

 Large 4-1/2 dual digital LCD display with backlight 

Display Dimensions: 

1.5” x 1.5” (38.1 mm x 38.1 mm) 

 

Sensor Type:   

Relative humidity and temperature multi sensor module located at the probe 

tip with    calibrated digital output 

 

Response Time:   

%RH: 10 seconds for stabilization in still air, temperature < 0.4 seconds 

 

Sampling Rate: 

0.4 seconds 

 

Out of range:

 “OL” indication on the display 

 

Low battery indication:

 The            icon is displayed when the battery voltage drops below 

the operating level. 

 

Operating Conditions:

  32

 o

F to 104

o

F (0

 o

C to 40

o

C); < 80% RH non-condensing 

 

Storage Conditions

: 14

 o

F to 140 

o

F (-10

 o

C to 60

o

C); <80% RH non-condensing 

 

Auto  Power  Off:

  Meter  automatically  shuts  down  after.15  minutes  of  inactivity  (Sleep 

Mode) 

 

To override Auto Power Off function (Non-Sleep Mode), press and hold the 

Hold/Backlight

 

button , then press power button, after the full display appears, and then release both buttons. 
The non-sleep mode Icon 

  will not be displayed on the LCD. 

 

Power:

 One standard 9V, NEDA1604 or 6F22 battery. 

 

Dimensions: 

8.8 (H) x 1.8 (W) x 1.3 (D) or 225 (H) x 45 (W) x 34 (D) mm 

 

Weight:

    0.45 lbs (200g)

 

7.

 

Troubleshooting Guide 

If your question is not answered here, you can contact us as follows: 
 

1.

 

Email Support: 

support@ambientweather.com

 

2.

 

Live Chat Support: 

www.ambientweather.com/chat.html

 (M-F 8am to 4pm Arizona Time) 

3.

 

Technical Support: 480-283-1644 (M-F 8am to 4pm Arizona Time) 
 

Problem 

Solution 

Display console contrast is weak 

Replace console batteries with a fresh set of batteries. 

8.

 

Liability Disclaimer 

Please help in the preservation of the environment and return used batteries to an authorized depot.   
The  electrical  and  electronic  wastes  contain  hazardous  substances.  Disposal  of  electronic  waste  in 

Summary of Contents for WS-HT350

Page 1: ...Information 5 1 Introduction Thank you for your purchase of the Ambient Weather WS HT350 Fast Response Thermo Hygrometer with Wet Bulb Dew Point Meter The following user guide provides step by step instructions for operation and troubleshooting To download the latest manual and additional troubleshooting tips please visit http ambientweather wikispaces com wsht350 2 Getting Started The WS HT350 co...

Page 2: ...ecommended ambient temperature range 22 F to 140 F 3 Display Console Layout Figure 1 1 Sensor probe The humidity sensors are located inside this probe tip DO NOT SUBMERSE IN LIQUID 2 LCD Display 3 MIN MAX Button 4 F C Dew Point Wet Bulb Temperature Selection Button 5 ON OFF Button 6 BACKLIGHT HOLD Button 4 1 Display Layout The LCD display shows the relative humidity in the top portion of the displ...

Page 3: ...ot in a position to view the display Press the Hold Backlight button to hold the last measured value Press the Hold Backlight button again to return to normal mode To turn on the backlight press and hold the Hold Backlight button To turn off the backlight press and Hold the Hold Backlight button 5 Glossary of Terms Term Definition Accuracy Accuracy is defined as the ability of a measurement to mat...

Page 4: ...80 RH non condensing Storage Conditions 14 o F to 140 o F 10 o C to 60o C 80 RH non condensing Auto Power Off Meter automatically shuts down after 15 minutes of inactivity Sleep Mode To override Auto Power Off function Non Sleep Mode press and hold the Hold Backlight button then press power button after the full display appears and then release both buttons The non sleep mode Icon will not be disp...

Page 5: ...CC part 15 21 Modifications not expressly approved by this company could void the user s authority to operate the equipment 10 Warranty Information Ambient LLC provides a 1 year limited warranty on this product against manufacturing defects in materials and workmanship This limited warranty begins on the original date of purchase is valid only on products purchased and only to the original purchas...

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