IEQ Chek
Operation Manual
28
1509-9001 Rev 1
sensors at the tip of the temperature/RH probe, the relative humidity (RH) and
temperature levels are sampled to confirm the internal chamber readings. With the
optional IQ Chek™ software and datalogging kit, all instrument readings can be
stored for reference.
11.2. Probes
The probes included with the dual-probe version of the IEQ Chek™ are summarized
in the following table.
High Humidity Gas
Sample
Temperature/RH
Calibration/Sample
Adapter
Photo
P/N
1509-0021
1509-0024
1509-0022
Kits
Dual Probe Only
Dual Probe Only
Common to ALL
Length
36” (approx.)
36” (approx.)
13” (approx.)
Filter
Yes
N/A
No
Fitting
Brass, threaded
DIN-6 connector
Brass, threaded
The high humidity gas sample probe is approximately 3 feet in length and consists of
a rigid clear plastic tube, a combination of Nafion
®
and flexible tubing, and a dry filter
between them. The Nafion tubing is used to prove more accurate readings by (a)
eliminating moisture from within the tube, and (b) equalizing the relative humidity
inside and outside of the tube.
The calibration/sample adapter is common to all pumped IEQ Chek™ versions. It
connects to the threaded brass fitting which is either located on the side of the
instrument (standard, single-probe versions) or on the back (dual-probe versions).
The temperature/RH probe is an electrical probe that has temperature and relative
humidity sensors on one end and a DIN-6 electrical connection on the other. This
probe connects to the mating DIN-6 connector located on the back of the dual-probe
IQ Chek™.
IMPORTANT:
During operation, the temperature/RH probe
must
be installed,
otherwise the gas readings may be compromised.
