Omega DRI-DC Instruction Sheet

Specifications
Inputs:
Voltage:
Range Limits: 10mV to 100V (see Table 1)
Impedance: >100k ohms
Overvoltage: 200V continuous
Current Input:
Range Limits: 1mA to 100mA
Impedance: 20 ohms typical
Overcurrent: 170mA, protected by self resetting fuse
Overvoltage: 60V
Pushbutton Adjustment (inputs>10mV)
Effective zero offset: > 90%
Effective span turn down: > 90% except 20mV/2mA range in
which 50% is max. zero offset and span turndown
Outputs:
Voltage:
Output: 0-5V, 0-10V
Source Impedance: <10 ohms
Drive: 10mA max.
Current:
Output: 4-20mA, 0-1mA, 0-20mA (DRI-DC only)
Source Impedance: >100k ohms
Compliance:
0-1mA: 7.5V max. (7.5k ohms)
4-20mA: 12V max. (600 ohms)*
0-20mA: 12V max. (600 ohms)
*10V max. (500 ohms) on dual out version
Output Ripple:
<50% offset or span adjust:<0.1% off full scale span or 25mV
RMS, whichever is greater
>50% offset or span adjust:<0.2% of full scale span or 50mV RMS,
whichever is greater.
Output Accuracy:
>2mA / >20mV input spans:
+0.1% of full-scale input typical, +0.2% maximum
<2mA / <20mV input spans:
+ 0.35% of fullscale input typical, + 0.5% maxmum; including
linearity, repeatability and hysteresis @23C.
Response Time: 200mSec, typical
Stability: +0.025% of full scale /C, maximum for fullscale and zero
Common Mode Rejection: 120dB at DC, >90dB at 60Hz
OMEGA ENGINEERING, INC., warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase.
OMEGA's WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping
com
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time. This ensures that OMEGA's customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA's Customer Service Department will issue an Authorized Return
Servicing North America:
(AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired
U.S.A.: or replaced at no charge. OMEGA's WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to
mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if
Omega Engineering, Inc., One Omega Drive,
the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current,
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heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA's control. Components
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OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions
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or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA,
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MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND
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CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a "Basic Component" under 10 CFR 21 (NRC), used
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WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage
whatsoever arising out of the use of the Product(s) in such a manner.
The information contained in this document is
believed to be correct, but OMEGA accepts no
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA,
liability for any errors it contains, and reserves
PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA'S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
the right to alter specifications without notice. PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
FOR WARRANTY RETURNS, please have the following
information available BEFORE contacting OMEGA.
1. Purchase order number which the product was PURCHASED,
2. Model and serial number of the product under warranty, and
3. Repair instructions and/or specific problems relative to
the product.
OMEGA's policy is to make running changes, not model changes, whenever an improvement is possible. This affords customers the latest
technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
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Isolation: > 1800VDC or peak AC between input, output, power
and channel to channel
ESD Susceptibility: Capable of meeting IEC 801-2 level 3(8kV)
Humidity (non-condensing):
Operating: 15 to 95% RH @45°C
Soak: 90% RH for 24 hours @60°C
Temperature:
Operating: 0 to 55°C (32 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Power: 2.5W max; 100 to 240VAC, +10%, 50 to 400Hz
Wire Terminals: Socketed screw terminals for 12-22 AWG
Agency Approvals:
UL recognized per standard UL508 (File No. E99775).
CE compliance per EMC directive 89/336/EECand low voltage 73/23/EEC.
Dimensions
WARRANTY/DISCLAIMER
RETURN REQUESTS/INQUIRIES
FOR NON-WARRANTY RETURNS, consult OMEGA for current repair
charges. Have the following information available BEFORE contacting
OMEGA.
1. Purchase Order number to cover the COST of the repair,
2. Model and serial number of the product and
3. Repair instructions and/or specific problems relative to the product.
DRI-DC and DRI-SP-AC
AC Powered DC Input
DIN Rail Multi-Channel Signal Conditioner
INSTRUCTION
M5477/0715
SHEET
Shop online at omega.com e-mail: info@omega.com
SM
For latest product manuals: www.omegamanual.info
Provides 1 or 2 Fully Isolated DC Output Signals
in Proportion to 1 or 2 DC Inputs
Field Configurable Input Ranges

 Field Configurable Output Ranges
1800VAC Isolation

Touch Calibration Technology

Description
The model DRI-DC and DRI-SP-AC are AC powered, DIN
rail mount, DC input signal conditioners, with 1800V isolation
between input, output and power. The field configurable input
and output feature offers flexible, wide ranging capability for DC
current and voltage signals.
The DRI-DC is a single channel signal conditioner (1 input/1
output) and the DRI-SP-AC is a multi-channel signal conditioner
(1 input/2 outputs). Both models maintain the high 1800V
isolation level from channel to channel, as well as input to
output to power.
Touch Calibration Technology
Using a pushbutton instead of potentiometers, improvements
in calibration resolution and reliability are realized due to the
elimination of the potentiometers' mechanical variability. The
thermal drift and mechanical variability of the potentiometers
has been removed and replaced with a digitally stable circuit.
Additionally, the inherent zero and span interactivity of analog
amplifier circuitry is removed, providing 100% non-interactive
adjustment.
The DRI-DC and DRI-SP-AC can be field configured for virtually
any DC input to DC output within the limits specified. Calibration
utilizes Touch Calibration technology where the user simply
configures the input for the current or voltage range via switches,
then follows the Calibration Flow Chart. The output is set by
adjusting the input until the desired output is present and then
pressing the CAL button to store the output level.
Diagnostic LEDS
The DRI-DC and DRI-SP-AC have three diagnostic LEDs.
The green (RUN) LED is used for diagnostics to indicate that
power is on. It will flash quickly if the input signal is above the
calibrated range or slowly if the input signal is below range.
It is on continuously when the unit is functioning within the
calibrated range.
The yellow (IN) LED is on while calibrating the input and the red
 High Density DIN Rail Mounting
Universal AC Power 85 to 265 VAC

Plug-in Terminals

(OUT) LED is on while calibrating the output.
Configuration
The DRI-DC and DRI-SP-AC can be configured for input ranges
from 10mV to 100V or 1mA to 100mA, with >90% input offset
or will adjust down to <10% of full scale input span (except on
20mV/2mA range where maximum offset or gain adjustment
is 50%). Unless a specific custom calibration is specified, the
factory presets the Model DRI-DC and DRI-SP-AC as follows:
Input Range: 20mA (Current on)
Input Configuration: Unipolar
Calibrated Input: 4-20mA
Operation: Direct (Reverse off)
Calibrated Output: 4-20mA
For other I/O ranges, refer to the tables below.
WARNING: Do not change switch settings with power applied.
Severe damage will result!
1. With power off, snap off the faceplate by lifting the right edge
away from the heatsink. Slide the heatsink forward and off the
module.
2. The single channel module has two eight position switch
blocks, one for input and one for output. The dual output modules
have a second board behind the heatsink. Gently lift this board
away from the main board, rocking it back while lifting. The one
input, two output module has one ten position switch block for
input and channel 1 output, along with a two position switch for
the second output.
3. For single channel modules, choose the desired input,
function and output range from Table 1, 2, and 3. For multi-
channel modules, use Table 4. Set the dip switches for the
desired I/O.