Why select AZ Instrument




HAND HELD TYPE BLACK BALL 8778
THE BLACK BALL THERMOMETER IS FOR MEASURING RADIANT TEMPERATURE WITH A 75MM DIA BLACK BALL ( HOLLOW SPHERE IN BRASS ) PROTECT SENSORS WITH A CLEAR SHEATH MOVING UP AND DOWN !EASY TO SELF-CALIBRATE RELATIVE HUMIDITY WITH 33%-75% SALT SOLUTION BY MOVING THE BLACK BALL AND CLEAR TUBE !GIVES A DIRECT MEASUREMENT OF THE AVERAGE RADIANT TEMPERATURE !TRIPOD RECEPTACLE DESIGN FOR LONG TIME TEMP MONITORING !
FEATURE
Check both inside and outside heat indices :
WBGT: Wet Bulb Globe Temperature ( for checking the heat stroke indices)
TG : Globe Temperature
TA : Air Temperture
DP :Dew Point Temperature
Audible beeper warns reading exceeds alarm threshold of WBGT reading
Alarm threshold setting is adjustable
Temperature unit is switchable
Battery low indicator shows power is weak
Built in RS232 interface for on line linking to a PC for further analysis
Auto power off or No-Sleep mode is selectable
Formula:(Reference)
Indoors / Outdoors and no sun
WBGT = 0.7 x WB + 0.3 x TG
Outdoors and full sun
WBGT=0.7xWB+0.2xTG+ 0.1XTA

SPECIFICATION
 
Black ball size : Dia. 75mm, Height 75mm
Air temperature : 0.0~ 50¢J ( 32~ 122¢K)
Air Temp. accuracy : ¡Ó 0.6 ¢J
Temp.(TG) range : 0~ 80.0¢J ( 32~ 176¢K)
Temp.(TG) accuracy : ¡Ó 1 ¢J( Indoor ) ¡Ó 1.5 ¢J( Outdoor )
WBGT Temp.range : 0.0~ 50¢J ( 32~ 122¢K)
RH% range :
 0~100% RH
RH accuracy : ¡Ó3 %RH (10-90%RH)
¡Ó5% RH for other range
   
   
Resolution : 0.1¢J , 0.1%RH
Response time : 15 seconds typical.
Meter size : 29.4 (H) x48.7(W) x 254mm(L)
Packing :Meter, battery (AAAx2 pcs) , operation manual, blister card packing, built-in black ball
Optional accessory: :Salt solution VZHR33AZ+
VZHR75AZ.
© Copyright 2000 AZ Instrument Corp. Last update on:01/10/2007.