User manual for meter with U/I input PD72S
The unit is designed for operation in an industrial environment and must not
be used in a household environment or similar.
2. GENERAL CHARACTERISTICS
The
PD72S
meter is equipped with one current input 0-20 / 4-20 mA and one voltage input 0-5
/ 1-5 / 0-10 / 2-10 V. Current input has additionally overcurrent protection circuit, which
protects standard resistor. The selection of active input is realised by software, and selected
input can be changed at any time. Additionally the
PD72S
allows user to select a conversion
characteristic of several kinds: linear, square, square root, and user defined (max.20 points
length). Result is showed on 4-digit LED display. Displayed values range can be selected by
user, from -999 to 9999, plus decimal point.
The device can be equipped with one or two relay (or OC type) outputs. Device
PD72S
is
equipped with RS-485 / Modbus RTU communication interface and sensor supply output. The
meter can be ordered in two power supply versions.
PD72S
can be used for controlling and regulation of processes need proportional and
threshold control like: temperature processes (heating or cooling), valves controlling or other.
3. TECHNICAL DATA
Power supply voltage
85...
230
...260 V
AC/DC
; 50 ÷ 60 Hz
(depending on version)
or 19...
24
...50 V
DC
; 16...
24
...35 V
AC
External fuse (required)
T - type, max. 2 A
Power consumption
max. 4.5 VA @ 85 ÷ 260 V
AC/DC
max. 4.5 VA @ 16 V ÷ 35 V
AC
max. 4.5 W @ 19 V ÷ 50 V
DC
Current input
0÷20 mA, 4÷20 mA overload protected,
maximum input current about 40 mA
Current measurement accuracy
± 0.25 % ± one digit (for 0 ÷ 20 mA range)
Current input resistance
< 65
Ω (typical 55 Ω)
Voltage input
0 ÷ 5 V, 1 ÷ 5 V, 0÷10 V, 2 ÷ 10 V
Voltage measurement accuracy
± 0.25 % ± one digit (for 0 ÷ 10 V range)
Voltage input resistance
> 50
kΩ
4
-
Do not use the unit in explosion hazard areas.
- Do not use the unit in areas with significant temperature variations, exposed to
condensation or icing.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must be
considered (e.g. by using a ventilator).
