Product information Wireless data loggers
HD35ED… data loggers in housing for indoor use
Transmitting frequency
868 MHz, 902-928 MHz or 915.9-929.7 MHz depending on the model
Antenna
Internal
Transmitting range
See table 2
Measuring interval
(*)
1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min
Logging and transmitting interval
(*)
1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min
Internal memory
Circular management or stop logging if full.
The number of samples that can be stored depends on the number of acquired
quantities (see table 4).
Alarm
Acoustic by means of the internal buzzer
Power supply
Internal 3.6 V lithium-thionyl chloride (Li-SOCl
2
)
not rechargeable
battery, size A, Molex
5264 2-pole connector.
Battery autonomy
(without repeaters, direct communication with
HD35AP...)
1.5 years typical for CO/CO
2
models (with 2 min measurement and logging intervals) and for
D
P range r5 model (with 30 s measurement and logging intervals);
2 years typical for the other models, with 5 s measurement interval (10 s for HD35EDH)
and 30 s logging interval.
Display
Optional. Custom or graphic LCD depending on the model (see table 3A).
Keyboard
Push-buttons for connection / PING (for testing RF).
The models with LCD are provided with buttons for configuration and scrolling of the
measured values.
LED indicators
RF communication status. The models without LCD are provided with alarm LED and
battery level LED.
Working temperature and humidity range
-20…+70 °C (-10…+70 °C for the models with grid) / 0…85
%RH not condensing
Housing
Plastic material
Dimensions: see table 3B
IP 50 protection degree (except versions with grid)
Connectors for external probes with cable
Depending on the model, M12 connectors or
terminal
header
inputs
3.5
mm pitch.
Weight
200 g approx. (version with LCD, including battery)
Installation
Wall mount support (
supplied
) for removable installation or flanges (
optional
) for fixed
installation.
Versions with LCD:
Versions without LCD:
(*)
Some models measuring several quantities may have a minimum interval greater than 1 second (see table 4).
LCD
Internal RF antenna
Keyboard
RF LEDs
Internal RF antenna
Connection push-button
LED battery
RF LEDs
LED alarm
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