当使用模拟探头时，须定义电压信号范围和探头的测量范围。
HW4
需要对模拟探头测量单位做定义。
The HW4 software can also be used to change the probe type for each input.
HW4
软件也可以对每路探头类型做更改。
4.5
4.5
4.5
4.5 Practical
Practical
Practical
Practical advice
advice
advice
advice for
for
for
for measuring
measuring
measuring
measuring humidity
humidity
humidity
humidity
湿度测量实用指导
The most common source of error when measuring relative humidity is a difference between the
temperature of the probe and the temperature of the environment. At a humidity condition of 50 %RH, a
temperature difference of 1C (1.8 F) typically results in an error of 3 %RH on relative humidity.
测量相对湿度时最常出现的误差来自探头温度与环境温度的不同。在湿度环境为
50%RH
，温度相差
1
℃，
导致相
3
对湿度
%RH
的误差。
When using the HP22 hand-held indicator, it is good practice to monitor the display for temperature
stability. The probe should be given sufficient time to equilibrate with the environment to be measured.
The larger the initial temperature difference between the probe and the environment to be measured, the
more time temperature equilibration requires.
This time can be shortened, and errors avoided, by using
the probe configuration that fits best for your application.
当使用
HP23
手持表测量，它能很好的监视温度平衡。应给探头足够长时间与被测环境相平衡。当探头与
被测环境温差越大，所需要的平衡时间就越长。
In extreme situations, condensation may occur on the sensors when the probe is colder than the
environment. As long as the humidity / temperature limits of the humidity sensor are not exceeded,
condensation does not alter the calibration of the sensor. However, the sensor has to dry out before it
can provide a valid measurement.
在恶劣环境中，当探头比环境温度低时会在传感器上结露。只要温湿度值不超过湿度传感器的测量范围，
凝露不会影响传感器的校准。尽管如此，为了得到有效测量结果应该在测量之前，擦干传感器。
Non-moving air is an excellent insulator. When there is no air movement, surprising differences in
temperature and humidity can noted over short distances. Air movement at the probe generally results in
measurements that are both faster and more accurate.
不动的空气是一种极好的绝缘体。没有气流，即使在相距很短距离是所测得的温湿度都相差很多。探头周
围的空气流动速度会影响测量结果，通常是风速更快，测量更准确。
5
5
5
5 Using
Using
Using
Using the
the
the
the HP23
HP23
HP23
HP23 functions
functions
functions
functions HP23
HP23
HP23
HP23
功能说明
5.1
5.1
5.1
5.1 Data
Data
Data
Data capture
capture
capture
capture
数据捕捉
Manual data capture is available only in the HP23 standard operating mode. Data cannot be captured
when the HP23 is in the AW mode.
手动数据捕捉仅在
HP23
标准操作模式下有效。当
HP23
在
AW
模式下，
数据不能捕捉。
Up to 250 relative humidity and temperature records can be manually captured to each of the 8 data-bins.
The captured data is automatically date and time stamped. The calculated parameter cannot be captured.
A descriptive name can be given to each data-bin with the HW4 software (laboratory, warehouse, etc.)
每个
8
位数据最多捕捉
250
组温湿度记录。捕捉的数据自动标记日期和时间。计算参数不能被捕捉。通过
HW4
软件可以定义每个数据位。
5.1.1
5.1.1
5.1.1
5.1.1 Capturing
Capturing
Capturing
Capturing data
data
data
data
捕捉数据过程
o
Use the UP or DOWN arrow key to select the probe
使用
UP
或
DOWN
方向键选择探头
o
Select the data-bin with the UP or DOWN arrow key
使用
UP
或
DOWN
方向键选择日期位
o
Press the ENTER key to activate the Data Capture function
按
ENTER
激活数据捕捉功能
o
Data capture is confirmed on the HP23 display
数据捕捉在
HP23
显示屏上被确定
