4
the ability to copy archival and configuration files directly via the computer's USB port
programmable password protection for access against unauthorized reading, copying and modification of archival
and configuration data
checksum allowing to detect unauthorized modification of the archive
the possibility of differentiating archives from many recorders through individual assignment of an identification
number (ID)
programmable types of alarms for humidity and temperature (below or above the threshold with hysteresis, inside
band or out of band), intensity, alarm memory and time of insensitivity after resetting alarms memory
alarm signalling with pulsating LED diodes and sounds (built-in low-volume buzzer)
programmable displayed values (measurement values, calculated values, statistics or clock), recording and
alarms
options, and other configuration parameters, such as zero calibration of the measured quantity, type of thermome-
tric scale (Celsius [°C] or Fahrenheit [°F]), indications resolution, identification number (ID), state of the BLE interface, etc.
saving in archives files the data and events, such as measured or calculated values, USB connection/disconnection,
start/stop or pause /resume of recording, low battery level, parameter configuration, etc., with order numbers, time
stamps and check sum
temperature compensation of humidity (for AR236.B) and high long-term stability of measurements
dew/frost point (°C /°F) and absolute humidity (g/m3) calculated on the base of the measurement of the relative
humidity (%RH) and sensor's temperature (°C/°F) for constant atmospheric pressure of 1013hPa (for AR236.B)
intuitive operation, easy configuration and clear signalling of device operation states
available accessories (you can also buy it through the online store
apar.sklep.pl
):
- 3.6V lithium battery type AA (R6), 2450mAh, (e.g. SAFT type LS14500)
- table base (standing)
NOTE:
- before working with the recorder, read this user manual, perform the operations
described in chapters
7 and 8
, and then
set the operating parameters correctly (chapter 9)
- by default, the recorder is configured for the presentation of the relative humidity (%RH) and / or sensor temperature (°C)
with data recording off, the F button starts the date and time view, the START/STOP button only refreshes the measure-
ment with the memory status display (recording mode, the amount occupied and how long it will be enough for)
- for humidity and temperature recorder AR236.B it is recommended to periodically check and/or calibrate the device in
accordance with the requirements applicable at the place of use or every 12 months
3. CONTENT OF THE SET
recorder
with 3.6V AA lithium battery (e.g. SAFT type LS14500)
USB cable (A - micro B) for connection to a computer, length 1.5 m
user's manual, warranty card
non-obligatory CD with drivers and software (Windows 7/8/10, also available on the website
www.apar.pl
in
the
Download
Software
section)
4. TECHNICAL DATA
Measuring probe
(integrated with the casing or
on a 1.5 m long cable,
do not pour water
over it
)
AR236.B sensor SHT31 from Sensirion, ABS cover (gap width 1mm)
and stainless steel mesh (mesh size 0.15mm)
AR232.B a digital sensor placed in a stainless steel tube
Measuring range for the probe
(other than the nominal operating
condition, in the table below)
- humidity
AR236.B 0 ÷ 100 % RH (does not apply to AR232.B)
- temperature
-30 ÷ 80 °C (for each version of AR236.B and AR232.B/1),
-50 ÷ 120 ° C (AR232.B/2 - with probe on the wire)
Measurement accuracy
- humidity
AR236.B
typically ±2 %RH (maximum ±2.5 %RH in the range 0 ÷ 90 %
RH and ± 3.5 %RH in the range 90÷100 %RH)
- temperature
AR236.B
typically ±0.3 °C (maximum ±0.4 °C)
AR232.B ±0.5 ° C in the range -10 ÷ 85 ° C,
±0.5 ÷ 2 °C in the remaining range
!
