Omega Products DRF-FR-115VAC-100HZ-0-10 User Manual

DIN Rail Mount Configurable Signal Conditioners

DRF Series

U Voltage, Current, Frequency, Resistance,

Potentiometer, Thermocouple, RTD
and Load Cell Input Modules

U Field Configurable Signal Ranges
U Provides up to 3500 Veff Isolation Between

Input and Output and Power (Isolation
is Model Specific)

U Compatible with Standard 35 mm DIN Rail

The DRF series DIN rail signal conditioners are
designed to accept a broad range of input signals,
such as ac and dc voltage and current, frequency,
temperature (thermocouple and RTD), and process
transducers, and provide standard process outputs
of either 4 to 20 mA, or 0 to 10 Vdc. The DRF series
feature a modern housing design, that is easily
mounted on standard 35 mm DIN rails. Connections
are safely and securely made through pluggable screw
terminal connectors, with input and output connections
on the opposite sides of the module.

Functionality

The DRF series are designed to maximize
functionality. The front door of the housing provides
easy access to span and offset potentiometers
which may be used to field adjust the input and
output signal range.

Isolation

The input, output and power circuits are isolated by
3500 volts of galvanic isolation. The isolation protects
against potentially damaging voltages from passing
through the signal conditioners into connected
systems. The isolation also provides improved
measurement accuracy by minimizing the effects of
ground loops and electrical noise.

Outputs

Each DRF series signal conditioner is available with
current and voltage output (only one may be used at
a time). Available output types include 4 to 20 mA or
0 to 10 Vdc. Although pre-configured before shipping
from the factory, the output may be changed through
an internal jumper change.

Standard outputs are linear and proportional to the
signal input. Thermocouple input modules feature
special circuitry to linearize the output to the actual
temperature rather than the non-linear signal produced
by thermocouple sensors.

1

To Order, Call or Shop Online at omega.com

SM

SPECIFICATIONS
(Common to all Models)

Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz,

115 Vac ±10% 50/60 Hz

Power Consumption: <3.8 VA
Output: 4 to 20 mA and 0 to 10 Vdc

Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): ≥1 KΩ
Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): ≤400Ω

Accuracy: <0.2% or <0.3% depending on model
Linearity: <0.1% or <0.2% depending on model
Thermal Drift: <150 ppm/°C or 250 ppm/°C typical

depending on model
Response Time: 70 mS (Process and DC input
models); 250 mS (Temperature and AC input models)

Isolation*:

Input to Output: 3500 Veff
Power to Input: 3500 Veff
Power to Output: 3500 Veff (for AC powered

models), 1K Veff (for dc powered models)

Electrical Connections: Plug-in screw terminals
Protection: IP-30
MECHANICAL DIMENSIONS

Weight:
(DC Powered): 120 g (4.2 oz)
(AC Powered): 200 g (7 oz)
Dimensions:
(DC Powered Models): 110 H x 22.5 W x 93 mm D

(4.3 x 0.9 x 3.7")

(AC Powered Models):

110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")

Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)

*Tested True RMS, 60 sec. leak <1 mA

To Order, Call or Shop Online at omega.com

SM

2

Thermocouple Input Signal Conditioner

The DRF-TC thermocouple signal
conditioners accept thermocouple
input and provide a linearized and
isolated 0 to 10 Vdc or 4 to 20 mA
output. Models are available with

DRF-TC

U Models for J, K, E, T, R

and S Thermocouples

U Accuracy 0.3%
U 250 ms Response Time
U Upscale Break Protection
U Linearized Output
U Galvanic Isolation Between

Input, Output and Power

Input Range Table

Range Code Range J K T E R S

0/100C 0 to 100°C X
0/150C 0 to 150°C X X
0/175C 0 to 175°C X
0/200C 0 to 200°C X
0/250C 0 to 250°C X X
0/300C 0 to 300°C X X
0/400C 0 to 400°C X X X
0/500C 0 to 500°C X
0/700C 0 to 700°C X X
0/800C 0 to 800°C X
0/1200C 0 to 1200°C X
0/1600C 0 to 1600°C X
850/1700C 850 to 1700°C X
Minimum Span* 85°C 85°C 100°C 85°C 100°C 100°C

* Custom ranges may be obtained by adjusting on-board zero and span potentiometers.
The minimum range is limited by the minimum span specification.

three different power options, 24Vdc,
120 Vac and 240 Vac.

The DRF-TC are ideally suited for
industrial applications. All models
mount on a standard 35 mm DIN
rail and provide galvanic isolation
between input, output and power
up to 3500 Veff (model specific).
To insure maximum measurement
accuracy the units feature cold
junction compensation, 0.2% linearity
and less than 0.1˚C/1˚C thermal
drift due to compensation. Module
response time is 250 ms or less.

DRF-TCJ-115VAC-0/400C-4/20,
shown larger than actual size

Specifications

Accuracy: <0.3% full scale
Linearity: <0.2% full scale
Thermal Drift: <250 ppm/°C typical
Thermocouple CJC Drift: 0.1°C/°C
Response Time: <250mS

(90% of signal)

Input Impedance: 1 MΩ
Over Voltage Protection: 10 V

Thermocouple Input

3

To Order, Call or Shop Online at omega.com

Thermocouple
probe types:
J, K, E, T, R, S
(one model
for each
thermocouple
type

To Order Visit omega.com/drf_series for Pricing and Details

Model No. Description

DRF-TCJ-(*)-(**)-(***) Signal conditioner for J type thermocouple
DRF-TCK-(*)-(**)-(***) Signal conditioner for K type thermocouple
DRF-TCT-(*)-(**)-(***) Signal conditioner for T type thermocouple
DRF-TCE-(*)-(**)-(***) Signal conditioner for E type thermocouple
DRF-TCR-(*)-(**)-(***) Signal conditioner for R type thermocouple
DRF-TCS-(*)-(**)-(***) Signal conditioner for S type thermocouple

* Specify power, “24Vdc” for 24 Vdc power, “115 Vac” for 115Vac power or “230Vac”
for 230 Vac power

** Specify range code from the Input Range Table
*** Specify output, “4/20” for 4 to 20 mA output or “0/10” for 0 to 10 Vdc output
Ordering Example: DRF-TCJ-115VAC-0/400C-4/20, signal conditioner for

a J thermocouple with a 0 to 400°C input range, 4 to 20 mA output and 115 Vac power.

SM