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in_m22.doc
Y-adapter Cable
The Y-adapter cable
ACRLYB5
splits the signal from the ACRL420 cable so as make a simultaneous
connection with both probe inputs of the HygroPalm 3 (probe 1: analog and probe 2: digital).
ACRLYB5
ACRL420
Probe input 2
HygroPalm
Probe input 1
HygroPalm
Service
connector
M22
a) Calibration of the digital signal of
the HygroClip S probe against a
known reference environment
with the HygroPalm 3. Select
probe input 2 - configured as a
digital input - on the HygroPalm,
before entering the calibration
mode.
b) Validation of the analog signals
from the M22 transmitter by
comparison with the digital signal
of the HygroClip S. This is done
by switching the HygroPalm
display between probe 1 (analog)
and probe 2 (digital).
HygroPalm 3
ACRLYB5
Y-adapter
ACRL420 service cable
Probe Input
2
Probe Input
1
known reference
environment
Probe simulators
A probe simulator can be plugged in place of the HygroClip S probe to generate fixed humidity and
temperature values. This is used to validate the electronics of the transmitter.
In principle, any combination of humidity and temperature can be ordered. The following example
shows some of the most common combinations:
HygroClip S35/25: 35%RH and 25
°
C (77
°
F).
HygroClip S50/25: 50%RH and 25
°
C (77
°
F).
HygroClip S80/25: 80%RH and 25
°
C (77
°
F).
Like the HygroClip S probe, the probe simulators provide both digital and analog output signals.
