Delta OHM HD45 17A, Manual

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Dewpoint Td accuracy (°C)
The dewpoint is a computed quantity that depends on relative humidity and
temperature calibration accuracy. The values supplied below refer to
± 2.5%RH,
± 0.25°C, 1013.25mbar accuracies.
Relative humidity (%)
10 30 50 70 90 100
-20 2.50 1.00 0.71 0.58 -- --
0 2.84 1.11 0.78 0.64 0.56 0.50
20 3.34 1.32 0.92 0.75 0.64 0.62
50 4.16 1.64 1.12 0.90 0.77 0.74
Tempera
tu
re °
C
)
100 5.28 2.07 1.42 1.13 0.97 0.91
Instrument features
Measuring frequency 1 sample every 3 seconds
Memory size 2304 Records
Logging interval Selectable between: 30s, 1m and 5m
The stored values represent the average values of the
samples acquired every 3 seconds in the selected logging
interval.
Serial outputs mini-USB (mini-USB / USB cable RS45 or RS45I cod.)
RS485 MODBUS-RTU (HD45…S… and HD46…S… only)
Stored data security Unlimited
Analog outputs 0…10Vdc (R
L
> 10k Ω ) (HD45…V… and HD46…V only)
11Vdc out of range
4…20mA (R
L MAX
= 400 Ω ) (HD45…A… and HD46…A only)
22mA outside the measuring range
Active sourcing current output
Relay outputs Bistable relay (HD45…R and HD46…R only)
Contact: max 1A @ 30Vdc resistive load
Power supply 24Vac ± 10% (50…60Hz) or 15…35Vdc
Power consumption 100 mW (except models with current output)
400 mW (for models with current output)
Stabilization time at switch-on 15 minutes (to ensure declared accuracy)
Instrument operating
temperature
0°C ... 50°C
Operating relative humidity 0%RH ... 95%RH non-condensing
Dimensions
(LxHxW) 80 x 80 x 30 mm (HD45.17…)
80 x 80 x 34 mm (HD45.B… and HD45.7B…)
120 x 80 x 30 mm (HD46.17…)
120 x 80 x 34 mm (HD46.17B…)
Weight 50 g
Housing material ABS