TRANSPAK™ T713

TRANSPAK™
T713
RTD Input Isolating, Field Configurable
Two-Wire Transmitter
Provides an Isolated, Linearized Current Loop in
Proportion to a 3-Wire Pt100 RTD Input
T713-0000
T713-0013 (-200°C offset)
Field Configurable, Switch Selectable Input Ranges
Eliminates Ground Loops
Wide Ranging Zero & Span
Integral RTD Linearization/Output Linear to
Temperature
FM Safety Approval for Hazardous Installations
Description
The T713 series has 6 widely adjustable input ranges and 2 output
ranges, all of which are field selectable via top accessed DIP
switches. The T713 provides 600VDC of isolation with outputs of
either 4-20mA or 10-50mA. Current outputs are linear to temperature. Urethane coating of internal circuitry for protection from
corrosive atmospheres is included as standard.
Application
The T713 is useful in any application requiring isolation of a 2-wire
loop current from a 3-wire RTD. Typical applications include
SCADA and remote data acquisition such as monitoring boiler or
custody transfer/pipeline temperatures. The output of the T713
can be used to drive a digital meter for direct display or interface
with a computer for monitoring and control applications.
The T713 has an 80% zero and span adjustability within any user
selected input range. For example, Range 1 of Table 1 specifies 0
to 1000° F with a minimum span of 200° F (1000° - 200° = 800°,
or 80%). This 80% adjustability allows the user to field calibrate the
unit for the maximum (0 to 1000°) down to any minimum (200°)
span (e.g. 740° to 940°) - as long as that adjusted span remains
within the selected 0 to 1000°F range. The same is true for any user
selectable range: all spans are field adjustable from 20% (minimum
span) to 100% of the specified range.
The T713 is FM approved for intrinsically safe operation in Class
I, Division 1, Groups A, B, C, and D; Nonincendive Class I Division
2, Groups A, B, C and D, and Classes II & III, Division 2, Group G
hazardous locations when installed per manufacturer’s drawing
790-0024-00. Refer to model T805 for NEMA 4, FM/CSA/CENELEC
approved explosion proof housing.
Calibration
Note: Factory settings are:
Input: Range 1
Output: 4-20mA
1. Open the access lid on the top of the unit (see Top View Diagrams).
2. Select the output range using switch S4. The CLOSED position
selects a 10-50mA output. The OPEN position selects a 4-20mA
output.
3. Select the input range from Table 1 or 2 and configure switches
S1 through S4.
4. Connect the input to a calibrated 3-wire resistance source and
monitor the output current (refer to terminal wiring).
5. Set the calibrator to the desired minimum temperature.
6. Adjust the coarse zero rotary switch to obtain an output of
approximately 4mA or 10mA. Adjust the fine zero for exact
calibration. Note that it may be necessary to switch coarse zero
up or down one position.
7. Set the calibrator to the desired maximum temperature and
perform similar adjustments using the coarse span switch and fine
span potentiometer.
Top View Diagram
Table 1: T713-0000 Input Ranges
Switch
Position
Input Range
(100 Ohm Pt RTD)
0.00385 alpha
Input Limits
Minimum Span
Input Limits
Minimum Span
1
0 to 600
120
0 to 1000
200
2
0 to 300
60
0 to 500
100
3
0 to 50
10
30 to 130
20
1
¡C
¡F
1
2
3
Key: = 1 = ON or Closed
Table 2: T713-0013 Input Ranges
Switch
Position
Input Range
(100 Ohm Pt RTD)
0.00385 alpha
Input Limits
Minimum Span
Input Limits
Minimum Span
1
-200 to 360
120
-300 to 700
200
¡C
¡F
2
-200 to 85
60
-300 to 200
100
3
-200 to -155
20
-300 to -250
40
2
3
Key: = 1 = ON or Closed
Field Mounting
The T713 is designed for installation in industrial field environments. A sealed, diecast aluminum housing protects against
corrosion, moisture, dust and electrical noise such as radiofrequency (RFI) and electromagnetic (EMI) interference. All
circuit boards are urethane coated for environmental protection
and FM approval.
For protection against extreme moisture, hose directed water
(NEMA 4) or hazardous environments, use the T805, a rugged EP/
NEMA 4 enclosure with standard, 1/2" and 3/4" FPT ports for easy
hookup and operation in harsh process environments.
Mounting Hardware
Dimensions in millimeters (inches)
T805 Field Mountable Housing (EP, NEMA 4 rated) 3/4" Hub
(Includes T903 Retainer Ring & NEMA 4 Gasket)
T713 Terminal Connections
1. Loop Output (-)
2. Loop Output (+)
3. RTD Exc (+)
4. RTD (+)
5. RTD (-)
6. Shield (Gnd)
NOTE 1: RL represents any other device loads in the current loop.
NOTE 2: For best RF and common mode rejection, ground the case (pin #6).
Specifications
Input Span Range (Min/Max):
See Tables 1, 2
Excitation Current:
1mA, typical
Leadwire Resistance Effect:
1% of span error with up to 40 Ohms/lead
Output Span:
4-20mA/10-50mA, switch selectable
Minimum Output Current:
3.3mA, typical
Maximum Output Current:
4-20mA: 24mA, typical
10-50mA: 58mA, typical
Supply Voltage Range:
4-20mA: 12 to 80VDC
10-50mA: 12 to 60VDC
Maximum Change in Supply - Voltage Effect:
0.05% of span
Maximum Change in Load Effect:
0.05% of span
Loop Voltage Drop:
12VDC @ 20mA
Linearizing Accuracy:
T713-0000: ± 0.1% of standard R/T tables,
typical; 0.2% max.
T713-0013: ± 0.21% of standard R/T tables,
typical; 0.3% max.
Stability:
Zero: ± 0.02% of span/°C, typical, or 2mV,
whichever is greater
Span: ± 0.01% of span/°C, typical
Overall Accuracy (Includes Linearity,
Hysteresis, Stability):
± 0.5% of any adjusted span, max.
Zero and Span Adjustability:
80% of any selected range
Repeatability:
± 0.05% of span, typical
Response Time:
150ms, typical, 400ms max.
Ordering Information
Models & Accessories
Specify:
1. Model:
T713-0000
T713-0013 (-200°C offset)
2. Optional Custom Factory Calibration: Specify C620 with desired
input and output range.
Output Ripple:
0.1% of span, rms, typical
RFI Effect (5W, 470MHz at 3 Ft.):
<1% of span error
Isolation:
600V DC maximum, input to output to case
Temperature Range:
Operating: -40 to 80°C (-40 to 176°F)
Weight:
0.64lbs
Agency Approval:
FM approved intrinsically safe for hazardous
locations, certificate No. J.I. 2M2A5.AX (3611).
Dimensions
Dimensions in millimeters (inches)
Accessories
M004
T902
T910
AP9046
T805
V565
C620
Snap-in Channel Track, 4 ft. (nonconducting).
Mounting plate for M004, includes 4" track.
Bulkhead (flat surface) mounting plate.
Action Pak 24/40VDC, 65mA Power Supply.
NEMA 4, explosion proof enclosure.
3-1/2 digit remote loop-powered indicator, wide ranging
display, NEMA 4X enclosure, CSA & FM approval
standard. Specify Option C to house Transpak.
Factory calibration (user specified).
Factory Assistance
For additional information on calibration, operation and installation
contact our Technical Services Group:
703-669-1318
Eurotherm, Inc
741-F Miller Drive
Leesburg, VA 20175-8993
703-443-0000
[email protected] or www.eurotherm.com/actionio
Action Instruments
Barber-Colman
[email protected]
721-0200-00-L 09/06 Copyright© Eurotherm, Inc 2006
Chessell
Continental
Eurotherm