Omega DRG-AR-TC Instruction Sheet

SPECIFICATIONS Stability
Temperature: ±0.05% of full
Inputs
scale/°C, max.
Range: See Table 1
Common Mode Rejection
Impedance: >1 Megaohm
DC to 60Hz: 120dB
Input Bias Current (burnout
Isolation
detection): <1.5 microamp
1800VDC between contacts,
Overvoltage: ±10V differential
input and power
Common Mode (Input to Ground):
EMC Compliance (CE Mark)
1800VDC, max.
Emissions: EN50081-1
LED Indicators
Immunity: EN50082-2
Input Range (Green)
Safety: EN50178
>110% input: 8Hz flash
Humidity (Non-Condensing)
<0% input: 4Hz flash
Operating: 15 to 95% (@45°C)
Setpoint (Red):
Soak: 90% for 24 hours (@65°C)
Tripped: Solid red
Temperature Range
Safe: off
Operating: 0 to 55°C (32 to 131°F)
Limit Differentials (Deadbands)
Storage: -15 to 70°C (5 to 158°F)
0.25% to 5% of span
Power
Response Time
Consumption: 1.5W typical,
Dynamic Deadband:
2.5W max.
Relay status will change when
Supply Range: 9 to 30 VDC,
proper setpoint/process condition
inverter isolated
exists for 100msec
In-rush Current: 300mA, max.
Normal Mode (analog filtering):
Relay Contacts
<250msec, (10-90%)
2 SPDT (2 Form C) Relays
Setpoint
1 Relay per setpoint
Effectivity: Setpoint(s) are adjustable
Current Rating (resistive)
over 100% of the selected input
120VAC: 5A
span
240VAC: 2A
Repeatability (constant temp.):
28VDC: 5A
0.2% for temp > 0°C
0.3% for temp < 0°C
OMEGA ENGINEERING, INC. warrants this unit to be free of manufacturing defects for the life of the product.
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA's Customer Service Department will issue an Authorized Return (AR) number
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immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at no charge. OMEGA's
http://www.omega.com info@omega.com 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 the unit shows evidence of having been tampered with or shows evidence of being damaged
as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA's
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Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER
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MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA'S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING
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Fax: 42 (69) 6311114
FOR WARRANTY RETURNS, please have the following information
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available BEFORE contacting OMEGA:
1. P.O. number under which the product was PURCHASED,
France:
9, rue Denis Papin, 78190 Trappes
2. Model and serial number of the product under warranty, and
Tel:33 0130-621-400
Fax: 33 0130-699-120
3. Repair instructions and/or specific problems relative to the product
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ã Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This documentation may not be copied, photocopied, reproduced, translated, or reduced to any
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electronic medium or machine-readable form, in whole or in part, without prior written consent of OMEGA ENGINEERING, INC.
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It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European
LE9 6TU, England M44 5EX, England New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
Tel: 44 (1455) 285520 The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter
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specifications without notice.
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WARNING: These product are not designed for use in, and should not be used for, patient connected applications.
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Material: Silver-Cadmium Oxide
5
Electrical Life: 10 operations at
rated load
Note: External relay contact
protection is required for use
with inductive loads (see relay
protection Figures 2 & 3).
Mechanical Life: 10 7 operations
Wire Termination
Screw terminations for 12-22 AWG
Agency Approvals
CSA certified per standard C22.2,
No. 0-M91 and 142-M1987 (File
No. LR42272) UL recognized per
standard UL508 (File No.E99775)
CE Conformance per EMC directive
89/336/EEC and Low Voltage 73/23/
EEC
Mounting
32mm and 35mm DIN Rail
PIN CONNECTIONS
11 N.O. Relay B
12 Com. Relay B
13 N.C. Relay B
21 DC Power (+)
22 DC Power (-)
23 No Connection
41 T/C Input (+)
42 T/C Input (-)
43 No Connection
51 N.O. Relay A
52 Com. Relay A
53 N.C. Relay A
WARRANTY/DISCLAIMER
RETURN REQUEST/ INQUIRIES
FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair
charges. Have the following information available BEFORE contacting OMEGA:
1. P.O. number to cover the COST of the repair,
2. Model and serial number of product, and
3. Repair instructions and/or specific problems relative to the product.
721-0609-00A 8/96
DRG-AR-TC
Field Configurable Limit Alarm
Instruction Sheet M2398/0796
DESCRIPTION OPERATION
The DRG-AR-TC is a DIN rail mount, The field configurable DRG-AR-TC
thermocouple input limit alarm with limit alarm setpoints can be config-
dual setpoints and two contact closure ured for HI or LO, failsafe or non-
outputs. The field configurable input failsafe operation.
and alarm functions offer flexible setpoints has a respective HI or LO
setpoint capability. There are up to six deadband. In a tripped condition, the
temperature ranges available for each setpoint is exceeded and the appro-
thermocouple type to ensure accura- priate red LED will illuminate. The trip
cy and maximize setpoint resolution. will reset only when the process falls
A bipolar input switch is provided for below the HI deadband or rises above
temperature ranges below 0°C. the low deadband (see Figure 1). For
proper deadband operation, the HI
The DRG-AR-TC is configurable as a
setpoint must always be set above the
single or dual setpoint alarm, with HI or
LO setpoint.
LO trips, upscale or downscale ther-
mocouple burnout detection and In failsafe operation, the relay is en-
failsafe or non-failsafe operation. Also ergized when the process is below the
included are adjustable deadbands HI setpoint or above the LO setpoint
(0.25 to 5% of full scale input) for each (opposite for non-failsafe). In the
setpoint and a flexible DC power sup- failsafe mode, a power failure results
ply which accepts any voltage be- in an alarm state output.
tween 9 and 30VDC.
Illustrating LO Setpoint
Illustrating HI Setpoint
DIAGNOSTIC LEDS
Setpoint
100
The DRG-AR-TC is equipped with
three front panel LEDs. The first is a
dual function LED labeled INPUT.
This green LED indicates DC power
50
and input signal status. Active DC
Relay Trips
power is indicated by an illuminated (LED Red)
Relay returns to its
untripped condition
LED. If this LED is off, check line
Time
power and wiring connection. If the
Figure 1: Limit alarm operation and
input signal is more than 110% of the
effect of deadband(s).
full scale range, the LED will flash at 8
Hz. Below 0%, the flash rate is 4 Hz.
DYNAMIC DEADBAND
LSI circuitry in the DRG-AR-TC pre-
Two red LED's indicate the relay state
vents false trips by repeatedly sam-
for each setpoint. An illuminated red
pling the input. The input must remain
LED indicates the tripped condition.
beyond the setpoint for 100 millisec-
OUTPUT
onds, uninterrupted, to qualify as a
The DRG-AR-TC is equipped with two valid trip condition. Likewise, the input
SPDT (form C) relays, rated at must fall outside the deadband and
120VAC or 28VDC at 5 amperes. remain there for 100 milliseconds to
Each of these relays is independently return the alarm to an untripped con-
controlled by the field configurable set dition. This effectively results in a
point and deadband. "dynamic deadband" —based on
time— in addition to the normal
deadband.
CONFIGURATION
Unless otherwise specified, the
factory presets Model DRG-AR-TC as
follows:
Each of the
Input: J Type
Range: 0 to 350°C
Output: Dual, SPDT
Trip: A: HI, B: LO
Failsafe: No
Deadband: A, B: 0.25%
The DC power input accepts any DC
source between 9 and 30V, typically
a 12V or 24VDC source is used.
For other I/O ranges, refer to
Table 1 and reconfigure switches SW1
and SW2 for the desired input type,
range and function.
WARNING: Do not attempt to change any
switch settings with power applied. Severe
damage will result!
1. With DC power off, position switch
SW1-1, 2, 3 and SW2-
Relay returns to its
untripped condition
1 through 6 for the desired input range
Relay Trips (LED Off)
(LED Red)
(Table 1).
} 10% Deadband
2. Set positions 4 and 5 of function
} 10% Deadband
switch "SW1" to ON for a HI trip
setpoint or OFF for a LO trip setpoint
(LED off)
(Figure 4).
3. Set position 6 of function switch
"SW1" to ON for non-failsafe opera-
tion or OFF for failsafe operation (e.g.
alarm trips upon power failure).
4. Set positions 7 and 8 of function
switch "SW1" to upscale or downscale
burn-out.