CONVERTER VMA420 - voltage to current converter (transducer).

 

This board offers effective, state-of-the-art, reliable linear control of HVAC 4-20mA dampers and valves. 

 

The CONVERTER-VMA420 voltage to current converter is a signal control (Proportional) 4-20 mA voltage to current transducer board for HVAC (Heating, Ventilation and Air Conditioning), electro-hydraulic and servo electronics; actuator, dampers, bleed pilot valve, globe valves, butterfly valves, plug valves, dampers and more.

 

The CONVERTER-VMA420 board is designed to perform voltage to current conversion (transducer). If used properly, it will eliminate the need for an expensive board, which would otherwise be needed to carry out the same tasks.

 

The CONVERTER-VMA420  is easy to install, setup, and operate. If you want to do professional remote voltage measurement related functions, The CONVERTER-VMA420 offers the features you need. It can be mounted easily via two 0.125" mounting holes using 4-40 screws.

 

Simply connect the board to 24VDC or 24VAC connect your voltage source 0-10V to the input and our board will convert it to 0-20mA. For input voltage 2-10V the output current is 4-20mA.

 

 

The CONVERTER VMA420 transducer board is an accurate, linear, and an efficient way to convert industrial standards voltage (input DC voltage models) 0 to 10V, 2 to 10V, 0mV to 1.2V, 66mV to 1.2V,  0mV to 2V, 400mV to 2V,0-5V, 1 to 5V, 0-15V, 3 to 15V, 0-24V, 4.8 to 24V into industrial standards (output current float on 16-20V DC) current 0 to 20mA, 4 to 20mA signals.... See below table "voltage to current industrial standard configuration models".

 

Note: Using industrial standard 249 Ohms 1% resistor on the meter side (deferential input preferred) will produce 0 to 5V for 0-20mA or 1 to 5V for 4 to 20mA. Using 499 Ohms 1% on the remote side will produce 0 to 10V and 2 to 10V.

 


 

or

 

 

 

1. 0 - 10V input 0 - 20mA output multi-turn trimmer adjustment.

    Note: Available in many input voltage configuration ranges (0 - 1.2V, 2V, 5V...)

2. LED power indicator.

 

Voltage to current industrial standard configuration models:

 

Model #

Input Voltage

Output Current

EID's OEM P#

VC420-B1

0-1.2V

0-20mA

EID-CONVER-TER-VC420-1-5TB

66mV-1.2V

4-20mA

 

 

 

 

VC420-B2

0-2V

0-20mA

EID-CONVER-TER-VC420-2-5TB

400mV-2V

4-20mA

 

 

 

 

VC420-B5

0-5V

0-20mA

EID-CONVER-TER-VC420-5-5TB

1-5V

4-20mA

 

 

 

 

VC420-B10

0-10V

0-20mA

EID-CONVER-TER-VC420-5TB

2-10V

4-20mA

 

 

 

 

VC420-B15

0-15V

0-20mA

EID-CONVER-TER-VC420-15-5TB

3-25V

4-20mA

 

 

 

 

VC420-B24

0-24V

0-20mA

EID-CONVER-TER-VC420-24-5TB

4.8-24V

4-20mA

 


Simply snap the Din-Rail mounded enclosure into your NEMA 4 box (enclosure) for watertight applications

 

 

EID-1593LTBU Translucent blue ABS plastic instrument enclosure with Din-Rail mounting options, side and back views

 

 

The board shown above mounted in EID-1593LTBU Translucent blue ABS plastic instrument enclosure with Din-Rail mounting options

 

Plastic enclosure and Din-Rail-clip are sold separately (for demonstration only).


 

CONVERTER-VMA420 Features

  • Built-in power LED indicator.

  • 10V input 20mA output multi-turn trimmer adjustment.

  • Power via 24V DC or AC industrial standard.

  • Converts 0-10VDC analog Voltages to 0-20mA or

  • Converts 2-10VDC analog Voltages to 4-20mA.

  • Can be customized to accommodate your input voltage requirement.

  • Industrial Standard output of 4-20mA makes the CONVERTER ideal for remote sensing applications.

  • Linear current output.

  • Current output rated up to 600mA.

  • On board trimmer facilitates precise calibration of output current (10V input to 20mA output)

Specifications

  • Input voltage                            0-10VDC

  • Input Impedance                       >100K Ohms

  • Output voltage                         12-18VDC

  • Output Current                         0 20mA standard, calibrated for 4-20mA with a 2 10VDC input signal

  • PCB material                             FR4

  • Input Filter                               L.P.F. 2Hz

  • Max power consumption              0.5W

  • Maximum load:                          Max load 600 Ohms

  • Storage temperature                  40 - 70   [F]

  • Operating temperature                32 - 140 [F] (0 to 60C) @ 95% RH

  • Low board DC voltage                 9 [V]

  • Power source                            24VAC +/-12%, 50/60Hz, 0.6VA or 24VDC @ 45mA filtered

  • Power indicator                         LED Red

  • Adjustment                              Via trimmer for 20mA output @ 10VDC input or 10mA @ 5V

  • Mounting                                 Two 0.125 (3.1mm) holes with center distance of 1.375" (34.9mm)

  • Board dimensions                       2.445" * 0.969" (62.1mm * 24.6mm)

  • Manufactured                           100% in USA

Pricing 

 

* Prices, SKU#, P# and colors are subject to change without notice. 

Description

SKU #

Price

CONVERTER-VMA420 voltage (2V to 10V) to current (4mA to 20mA) converter.

EID-CONVER-TER-VC420

$84.93

CONVERTER-VMA420 voltage (2V to 10V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-5TB

$84.69

CONVERTER-VMA420 voltage (66.7mV to 1.2V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-1-5TB

$99.39

CONVERTER-VMA420 voltage (400mV to 2V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-2-5TB

$102.33

CONVERTER-VMA420 voltage (1V to 5V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-5-5TB

$102.33

CONVERTER-VMA420 voltage (3V to 15V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-15-5TB

$108.13

CONVERTER-VMA420 voltage (4.8V to 24V) to current (4mA to 20mA) converter with terminal-block (5 positions).

EID-CONVER-TER-VC420-24-5TB

$117.00

CONVERTER-VMA420 EID-1593LTBU Translucent blue ABS plastic instrument enclosure with Din-Rail mounting options

EID-CONVER-TER-VC420-D-BLU

$14.99

Modified Translucent blue ABS Plastic Instrument enclosures option

EID-1593LTBU

$10.75

Din rail mounting mounting kit option

EID-1427DINCLIP

$4.24

CONVERTER-VMA420 ID-1593LTBU Translucent blue ABS plastic instrument enclosure with Din-Rail mounting options

EID-CONVER-TER-VC420-D-BLU

$14.99

Two Teflon 3/4" long mounting spacers and Four 4-40 1/4" screws. 

EID-CONVER-TER-XX34-4-40

$7.99

Two Teflon 1/2" long mounting spacers and Four 4-40 1/4" screws. 

EID-CONVER-TER-XX12-4-40

$6.99

Remote resistor 249 Ohms .25W/1%

EID-R-025-249-1

$1.2