Table of Contents
Advertisement
5.
CALIBRATION OF MEASUREMENT SYSTEM
5.1
Calibration of the Sensing Probe at E+E's OEKD-Lab
Any of the sensing probes can be sent to E+E's OEKD-lab for calibration.
5.2
Customer's Calibration of the Humidity and Temperature Sensing Probes
a) Calibration software on the personal computer:
The calibration can be done by means of software on a personal
computer => see respective product data sheet.
b) For all EE07 type sensing probes by way of the EE22 transmitter:
The calibration of the RH and T outputs is done by means of the
calibration buttons on the board of the EE22 humidity / tempera-
ture transmitter.
For details, see manual EE22 and in chapter 8. Replacement
Parts / Accessories.
A humidity calibrator is needed in order to perform an accurate
humidity calibration (e.g. E+E's "Humor 20", see chapter
8. Replacement Parts / Accessories).
5.3
Functional Test of the Entire Measurement System
It is possible by utilizing reference probes (fixed output value) to
test the entire measurement system. A reference probe, available
as an accessory (incl. calibration certificate / see chapter
8. Replacement Parts / Accessories), is used to test the function
and accuracy of the measurement loop.
Both reference probes, with a fixed output value for humidity and
temperature, are connected to the transmitter instead of the stan-
dard interchangeable sensing probes. The reference probes
simulate a high humidity and a low temperature value and vice
versa, in order to test the high and low end of the scales of the
analogue outputs.
5.4
Loop Calibration
The loop calibration of the humidity and temperature outputs, as recommended by the FDA
for the pharmaceutical and biotech industry, can easily be realized with separate humidity
and temperature sensing probes (type EE07).
E+E's "Humor 20" can be utilized as the high accurate humidity calibrator (see chapter
8. Replacement Parts / Accessories).
RH probe
T probe
14
Advertisement
Table of Contents
