Absolute Process Instruments API 4008 G Quick Start Manual Download Page 1

Potentiometer Input to DC Transmitters, Isolated, Field Rangeable 

API 4008 G

Input:

 100 

 to 1 M

 Potentiometers

Output:

 

0-1 V to ±10 VDC, or 0-2 mA to 0-20 mADC

 

O

Accepts Wide Range of Potentiometers

 

O

Set-up via External Rotary Switches

 

O

Easy-to-use Setup Tables

 

O

Selectable Voltage or Current Outputs

 

O

2000 VRMS Isolation Input/Output/Power

 

O

Input and Output LoopTracker

®

 LEDs

 

O

Functional Test Button

 

Q

Over, Under, Out-of-Range Position Monitoring

 

Q

Remote Control of Positioning Devices

 

Q

Simplify Control of Potentiometer Outputs

Applications

Options—add to end of model number
M01

 

Input/output reversal, such as 4-20 mA input to  
20-4 mA output 

U

 

Conformal coating for moisture resistance

Accessories—order as separate line item
API 008

 

8-pin socket

API 008 FS

  8-pin finger-safe socket 

API CLP1

  Module hold-down spring for high vibration or  

mobile applications

Model

Input

Output

Power

API 4008 G

Any full-range potentiometer 

from 0-100 

 to 0-1 M

Ω 

Specify if custom range is required

Field configurable 

specify range if factory is to set 

switches

115 VAC

API 4008 G A230

230 VAC

API 4008 G P

85-265 VAC or 60-300 VDC

API 4008 G D

9-30 VDC

Description

The API 4008 G accepts a resistance input from potentiometer, 
slidewire, linear position, displacement, or rotational devices 
and provides an optically isolated DC voltage or current output 
that is linearly related to the potentiometer position.
The API 4008 G will accept any potentiometer with a value of 
0-100 

 through 0-1 M

 without recalibration and without

affecting accuracy as long as 100% of the potentiometer range 
is used. Models with offsets and/or input ranges other than 0 to 
100% of the pot are available. Consult factory for assistance.
The API 4008 G output can be field-configured via external 
rotary and slide switches. 10 DC voltage or 8 DC current ranges 
can be selected from the table on the module. Other output 
ranges are available. 
The full 3-way (input, output, power) isolation makes this mod-
ule useful for ground loop elimination, common mode signal 
rejection or noise pickup reduction.

Output Loop Power Supply

The API 4008 G has an 20 VDC loop excitation supply for the 
output. This power supply can be used to power a passive 
mA device. 

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.

Potentiometer Input Ranges

Full travel of potentiometer and 3 wire connection required
Minimum: 0-100 

 

Maximum: 

0-1 M

Ω 

Consult factory for other ranges and configurations

Input Impedance

10 M

 minimum

Common Mode Rejection

100 dB minimum

LoopTracker

Variable brightness LEDs indicate I/O level and status

DC Output Ranges

Field selectable ranges via switch settings 
See table on other side for complete listing or consult factory 
for special ranges
Voltage: 

0-1 VDC to 0-10 VDC, 10 mA max

Bipolar voltage:  ±5 VDC or ±10 VDC
Current: 

0-2 mADC to 0-20 mADC 
20 V compliance, 1000 

 at 20 mA

Output Logic

Normal (standard) or reverse acting with M01 option

Calibration

Multi-turn zero and span potentiometers for output 
±15% of span adjustment range typical

Output Loop Power Supply

20 VDC nominal, regulated, 25 mADC, max. ripple <10 mV

RMS

Output Test

Front button sets output to test level when pressed 
Potentiometer adjustable 0-100% of span

Output Ripple and Noise

Less than 10 mV

RMS

Linearity

Better than ±0.1% of span

Ambient Temperature Range and Stability

–10°C to +60°C operating ambient 

Better than ±0.02% of span per °C stability

Response Time

70 milliseconds typical

Isolation

2000 V

RMS

 minimum 

Full isolation: power to input, power to output, input to output

Installation Environment

IP 40, requires installation in panel or enclosure 
Use with API 008 or API 008 FS socket 
Socket mounts to 35 mm DIN rail or can be surface mounted 
UL 508C pollution degree 2 environments or better

Power

Standard: 

115 VAC ±10%, 50/60 Hz, 2.5 W max. 

P option: 

85-265 VAC 50/60 Hz, 60-300 VDC, 2.5 W 

A230 option: 

230 VAC ±10%, 50/60 Hz, 2.5 W max. 

D option: 

9-30 VDC, 2.5 W typical

Minute 

Setup!

1

Free Factory 

I/O Setup!

 H H H H H H

  H H H H H

H H H H H H

  H H H H H

 H H H H H H

  H H H H H

H H H H H H

  H H H H H

 H H H H H H

Made in USA

2.75"

2.38"

1.75"

Variable Brightness 

Input LED

Output Test Button

Output Test Adjust

Output Span

Output Zero
Variable Brightness 

Output LED

Hot Swappable 

Plug-In Design

API 008 

600 V Rating

API 008 FS 

300 V Rating

API CLP1

E145968

115 VAC, 230 VAC  

models

www.mod-tronic.com | [email protected] | 1-800-794-5883

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