Progres 06750005 User manual

4–20 mA Pulsed Signal Transmitter
Manual
The transmitter converts the fertilizer or acid injection pulses into
4-20 mA outputs to control injectors with a frequency inverter.
Useful in controllers that does not have 4-20mA analogue outputs;
for example, the Agrónic 2500 or the Agrónic 5500.
4-20 mA pulsed signal transmitter
It oers the following benefits:
• Reading and conversion of up to three dierent pulsed signals (3 inputs) to 3 4-20 mA outputs.
CODE 06750005

2· User manual | 4-20 mA Pulsed Signal Transmitter
Technical characteristics
Power supply 12 Vdc to 20 Vdc
Energy consumption Less than 0.9 W
Overvoltage fuse Input Thermal (PTC) 0.4 A at 25°C,
self-resettable
Reverse Current Protection Yes
Power supply
Outputs
Number 3
Type Digital
Voltage 24 Volts in alternating or direct current
Inputs
Temperature -10 °C to +60 °C
Moisture < 95 %
Height 2000 m
Pollution Grade II
Environment
Height 99 mm
Width 65 mm
Depth 39 mm
Weight (approx.) 0,4 Kg
Transmitter box dimensions
This symbol indicates that electronic devices should not be disposed of along with household
waste at the end of its useful life. The product must be taken to the corresponding collection
point for recycling and properly treating electronic equipment in accordance with the national
legislation.
Output signal 4 - 20 mA 3 outputs
IMPORTANT The external output transformer (“R+ R-”) of the Agronic 2500
or 5500 must be a 24 Vac transformer

User manual |4-20 mA Pulsed Signal TransmitterA · 3
Conguration The transmitters are generally configured at the factory. However,
it is possible to make consultations or configurations by using
a “Module Reader,” consisting of a screen and four keys that are
connected to the transmitter through the only visible connector
inside.
Press the key to enter the main menu.
With the - and + keys, you can change the options within
the menu. With the key, you can enter the selected menu
option. With the c c key, the previous hierarchy.
Within the main menu, you can see the following options:
• Consultation
• Configuration
+
-
cc
Transmitter
power supply
+ 12 Vdc
- 0 V
Surface
fastening hole
Surface fastening
hole
1, 2, and 3
current outputs
2 3
Pulsed signal 2
CR (common)
Pulsed signal 1Pulsed signal 3
CR (common)
1
12v 0v
You must connect the 0V of the transmitter to the 0V of the converter. It is
recommended that you use a shielded cable (with the grid connected to the
grounding wire) for cables that go to the converter (current and 0V outputs).
NOTE
Connecting

Transmitter general reference menu, where you can view:
• Controller firmware version No.
• Type of transmitter
• Conversion of pulsed signal cycle in %
• Consultation of the 4-20 mA current value being delivered (output 1 to 3)
CONSULTATION MENU
Transmitter parameter configuration menu.
You can configure:
• Number of entries to read (from 1 to 3)
• Mode: “uniform fertilization” or “PID regulation”
CONFIGURATION MENU
UNIFORM FERTILIZATION MODE
IMPORTANT
If working with uniform fertilization, you must configure a “modulation cycle” of 50 seconds
in the A2500 or A5500 controller. At the end of the fertilization, the transmitter can maintain the
injection order for a maximum of 50 seconds. To avoid this, the converter can be ordered to stop
by using the general fertilizer unit or cutting the common signal (0V).
If the configured modulation cycle is not 50 seconds, the transmitter will not properly convert
the signal.
• In an Agrónic 2500 Go to FUNCTION | PARAMETERS | INSTALLER PARAMETERS | 5. VARIOUS:
Uniform fertilization, cycle: 50’’
Section 6.10 of the “1751 - Agronic 2500 PLUS Manual”
• In an Agrónic 5500 Go to FUNCTION | PARAMETERS | INSTALLER PARAMETERS | 3.
FERTILIZATION | 2. UNIFORM FERTILIZATION | Cycle: 50’’
Section 6.12.3 of the “2001 – Agronic 5500 Manual”
PID REGULATION MODE
The pH and EC regulation is done with a PID-type control. In this mode, it is not necessary
to configure any specific modulation cycle in the Agrónic 5500. Because the cycles are short
(maximum 5 seconds), the transmitter automatically detects the modulation cycle.
R-2253
Polígon Industrial, C/ de la Coma, 2 | 25243 El Palau d’Anglesola | Lleida | España
Tel. [phone] | [e-mail] | www.progres.es
Sistemes Electrònics Progrés, S.A.
All transmitter inputs will belong to the same type of mode: uniform fertilization
or PID regulation.
NOTE