background image

Strain Gauge/Bridge/Load Cell/Pressure Transducer to DC Transmitters, Field Rangeable 

API 4058 G

api-usa.com

1220 American Way Libertyville, IL 60048
Phone: 

800-942-0315

 

Fax: 800-949-7502

BSOLUTE

ROCESS

NSTRUMENTS, Inc.

© 10-11

Input: 

One to Four 350 

Ω

 Sensors, 0-5 mV to 0-1200 mV, 4-10 VDC Excitation

Output:

 

0-1 V to ±10 V or 0-1 mA to 4-20 mA, Non-Isolated

 

Drive up to Four 350 

Ω

 Bridges

 

Adjustable Excitation Power Supply

 

One Minute Setup for Hundreds of I/O Ranges

 

Easy-to-use External Switches for Setup

 

Hot-Swappable Plug-In Design

 

Input and Output LoopTracker

®

 LEDs

 

Adjustable Output Test

 

Internal Calibration Resistor Option

Applications

Options–add to end of model number

M01

 

Built-in calibration resistor. Specify resistor value.

DF

 

75 millisecond response time, or consult factory

U

 

Conformal coating for moisture resistance

Accessories—order as separate line item

API 011 

11-pin socket

API 011 FS  11-pin finger-safe socket
API TK36 

DIN rail, 35 mm W x 39” L, aluminum

Model

Input

Output

Power

API 4058 G

Field configurable—specify mV/V 

and excitation voltage if factory is 

to set switches, specify calibra-

tion resistor value, if required

Field configurable

Specify range if factory is to set 

switches

115 VAC

API 4058 G A230

230 VAC

API 4058 G P

60-265 VAC or 85-300 VDC

API 4058 G D

9-30 VDC or 10-32 VAC

Description

The API 4058 G accepts a strain gauge, bridge, load cell, 
or a summed input from up to four sensors, and provides 
a proportional, non-isolated DC voltage or current output. It 
includes filtering and processing to allow effective use of low-
level transducers in the noisy environments found in industrial 
applications.

The built-in 115 mA bridge excitation power supply generates a 
stable source of excitation voltage to drive from one to four 350 

Ω

 (or greater) bridge type sensors such as load cells, pressure 

transducers and strain gauges The API 4058 G amplifies and 
converts the resulting millivolt signal into the selected output.

Input, output, excitation, and zero offset are field configurable, 
via external rotary and slide switches. Common ranges are 
on the module label. An offset switch is standard for appli-
cations requiring cancellation of sensor offsets or non-zero 
deadweights (taring). Zero and span potentiometers allow 
calibration of the output.

LoopTracker

API exclusive features include two LoopTracker LEDs (green for 
input, red for output) that vary in intensity with changes in the 
process input and output signals. These provide a quick visual 
picture of your process loop at all times and can greatly aid in 
saving time during initial startup and/or troubleshooting. 

Output Test

An API exclusive feature includes the test button to provide a 
fixed output (independent of the input) when held depressed. 
The test output level is potentiometer adjustable from 0 to 
100% of output span. The output test button greatly aids in 
saving time during initial startup and/or troubleshooting. 
The output test is not available with the M01 option. A calibra-
tion resistor switch replaces the test button.

Mounting

The API 4058 G plugs into an industry standard 11-pin octal 
socket sold separately. Sockets API 011 and finger-safe API 
011 FS allow either DIN rail or panel mounting.

Please specify

Model 

API 4058 G

 (operates on 115 VAC)

D

 for operation on low voltage power

A230

 for 230 VAC operation

P

 for wide ranging power

Options as required
Resistor value if ordering M01 option

How to Order

Switches can be pre-set to your specifications. 
Please provide

Bridge mV/V
Excitation voltage
Output range

Quick Link

api-usa.com/4058

Input Range

Minimum range: 

0 to 5 mV

Maximum range: 

0 to 1200 mV

Minimum sensitivity:  0.5 mV/V
Maximum sensitivity:  120 mV/V

Millivolt output range is determined by the sensitivity of the 
sensor (mV/V) and the excitation voltage applied. 

mV/V sensitivity  X  excitation voltage  =  total mV range

Input Impedance

1 M

Ω

 typical

Calibration Resistor Option

M01 option: 

Toggle switch for internal shunt resistor

Excitation Voltage

Maximum output:  10 VDC maximum at 115 mA
Drive capability:  Up to four 350 

Ω

 bridges at 10 VDC

Adjustability: Switch-selectable, 0-10 VDC in 1 V increments
Fine adjustment:  ±2.5% via multiturn potentiometer
Stability: 

±0.01% per °C

LoopTracker

Variable brightness LEDs for input/output loop level and status

Output Ranges

 Minimum 

Maximum

Voltage: 

0-1 VDC 

0-10 VDC

Bipolar Voltage: 

±1 VDC 

±10 VDC

Current: 

0-2 mADC 

0-25 mADC

 

20 V compliance, 1000 

Ω

 at 20 mA

Output Linearity, Ripple & Noise

Better than ±0.1% of span, <10 mV

RMS

 ripple and noise

Output Zero and Span

Multi-turn potentiometers to compensate for load and lead 
variations, ±15% of span adjustment range typical

Zero Offset

±100% of span in 15% increments

Functional Test Button

Sets output to test level when pressed
Adjustable 0-100% of span
Not available with M01 option

Response Time

150 milliseconds typical (6.6 Hz)
DF option: 75 millisecond response time typical (13.3 Hz)
Contact factory for faster response times

Common Mode Rejection

100 dB minimum

Ambient Temperature Range and Stability

–10°C to +60°C operating ambient
Better than ±0.02% of span per °C stability

Housing and Sockets

IP 40, plugs into API 011 or API 011 FS socket
Socket mounts to 35 mm DIN rail or can be surface mounted

Power

Standard: 

115 VAC ±10%, 50/60 Hz, 2.5 W max.

A230 option:  230 VAC ±10%, 50/60 Hz, 2.5 W max.
P option: 

60-265 VAC, 50/60 Hz or 85-300 VDC, 

 

2.5 W typical

D option: 

9-30 VDC, 2.5 W typical

 

Load Cell Weighing Systems and Scales

 

Strain Gauge Pressure Sensors and Transducers

 

Tanks, Scales, Extruder Melt Pressure, Crane Loads

2.75"

2.38"

1.75"

Output Test 
Button

Variable 
Brightness 
Input LED

Variable 
Brightness 
Output LED

Output 
Calibration

Output Test 
Setting

11-Pin Socket 

Sold Separately

Made

in

U S A

★ ★ ★ ★ ★ ★

★ ★ ★ ★ ★

★ ★ ★ ★ ★ ★

★ ★ ★ ★ ★

★ ★ ★ ★ ★ ★

★ ★ ★ ★ ★

★ ★ ★ ★ ★ ★

★ ★ ★ ★ ★

★ ★ ★ ★ ★ ★

Hot Swappable 

Plug-In Design

Free Factory

I/O Setup!

p

Free Factory

I/O Setup!

Minute
Setup!

1

Minute

S

S

S

Set

!

!

up!

1

1

1

1

1

Reviews: