Delta OHM HD978TR5 - Converter Signal Amplifier ? 4?20 M A ? Wall Mounting

Technical Specifications @25°C and 24Vdc
INPUT HD978TR3 - HD978TR5 HD978TR4 - HD978TR6
Measuring range -10 mV … +60 mV configurable
Default range 0…20 mV
Minimum
measuring range 2 mV
Input impedance > 1 Mohm
Conversion speed 2 measures per second
Accuracy ±0.04%F.S. ±20 μV
Operating
temperature -30…+70°C
Storage
temperature -40…+80 °C
Relative humidity 0…90 %RH (without condensation)
OUTPUT HD978TR3 - HD978TR5 HD978TR4 - HD978TR6
Type of output
(note 1)
4…20 mA (or 20…4 mA)
two-wired
22 mA, in case of
unconnected input
0…10 Vdc
(0…1 Vdc, 0…5 Vdc, 1…5
Vdc upon request)
Resolution 4 μA 20 μV
Power supply
9…30 Vdc for the
4…20 mA current
output
15…30 Vdc (4mA) for the
0…10 Vdc current output,
10…30 Vdc (4mA) for the
other outputs
Protection against
polarity inversion 40 Vmax
Sensitivity to Vdc
power voltage
variations
0.4 μA//V 2μA/V
Load resistance
RLMax = (Vdc-9)/0.022
RL
Max = 680Ω with Vdc
= 24 Vdc
> 10kΩ
Input/output
galvanically
isolation
50 Vdc (verified at 250 V)
Red led It turns on while programming, when the probe is
broken or not connected
Heating time 2 minutes
Thermal drift 0.02% F.S./°C