Chapter 7 ___________________________________________________Calibration and Adjustment
VAISALA_______________________________________________________________________ 69
2. Issue command LI and enter value 0 for an offset value and value 1
for a gain value.
3. Issue command CDATE and set the calibration date.
Example:
>cdate 2001 12 11<cr>
Calibration : 2001-12-11
>
ACAL Analog Output Calibration
Syntax: ACAL<cr>
Connect the HMT310 to a multimeter in order to measure either current
or voltage depending on the selected output type. Issue the ACAL
command. Then type the multimeter reading and press Enter.
Example (current outputs):
>acal<cr>
Ch1 I1 (mA) ? 2.046 <cr>
Ch1 I2 (mA) ? 18.087 <cr>
Ch2 I1 (mA) ? 2.036 <cr>
Ch2 I2 (mA) ? 18.071 <cr>
>
Relative Humidity Calibration and Adjustment
(in Two Points)
Use two reference humidities over the measurement range. The
references need to have a difference of at least 50 %RH.
Before calibration HMT310 needs to be set to adjustment mode by
pressing the adjustment button once, see Figure 17 on page 70. (To return
to norma
l operation mode, use command RESET, see RESET Reset
Transmitter on page 50).
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