Sensoray 7409TC/7409TDIN Owner's manual

Sensoray
Brand
Sensoray
Model
7409TC/7409TDIN
Type
Owner's manual

Sensoray 7409TC/7409TDIN Termination Boards break out any 40-pin Smart A/D™ header connector onto screw terminals for easy sensor connection. Eight sensor channels each have a dedicated, five-circuit, removable terminal block. Option shunts enable interruption of input signal paths, and a prototyping area with plated-through pads is provided for custom circuitry. Signal conditioning circuits facilitate thermocouple open sensor detection and a calibrated temperature sensor provides thermocouple compensation.

Sensoray 7409TC/7409TDIN Termination Boards break out any 40-pin Smart A/D™ header connector onto screw terminals for easy sensor connection. Eight sensor channels each have a dedicated, five-circuit, removable terminal block. Option shunts enable interruption of input signal paths, and a prototyping area with plated-through pads is provided for custom circuitry. Signal conditioning circuits facilitate thermocouple open sensor detection and a calibrated temperature sensor provides thermocouple compensation.

Sensoray Models 7409TC/7409TDIN
Termination Boards
01/11/2000
INSTRUCTION MANUAL
Sensoray Co., Inc.
7313 SW Tech Center Dr., Tigard, Oregon 97223
voice: 503.684.8005, fax: 503.684.8164, e-mail: [email protected]
www.sensoray.com
M A N U A L - 7 4 0 9 T C / 7 4 0 9 T D I N
Introduction
Sensoray Models 7409TC and 7409TDIN are termination
boards that may be used to break out any 40-pin Smart A/D™
header connector onto screw terminals. Each of eight sensor
channels is allocated a dedicated, five-circuit, removable
terminal block.
Option shunts are provided to enable interruption of input signal
paths between header and screw terminals so that custom
circuitry may be inserted into the paths. A prototyping area,
consisting of an array of plated-through pads on 100-mil center
spacing, is provided for construction of custom circuitry.
Signal conditioning circuits (SCCs) are provided to facilitate
thermocouple open sensor detection. In addition, a calibrated
temperature sensor is provided for thermocouple compensation.
Model 7409TC is a circuit board assembly that includes all of
the features described above. Model 7409TDIN consists of a
7409TC assembly with integral DIN rail mounting hardware.
Implementing Custom Circuitry
As shown in the table to the
right, jumper posts E17
through E32 route the sense
leads of the eight terminal
blocks to the 40-pin header.
Shunts are factory installed at
all of these positions,
effectively bypassing the
prototyping area.
Remove these shunts to insert
custom circuits in the sense
signal path between the
terminal blocks and the header.
User-supplied custom circuits can be connected to header and
terminal block circuits by means of pads S1 through S50. Pad
S18 provides fused +12VDC power and S17 provides the 12V
return for powering custom circuitry. Refer to the schematic
diagram for details of pad wiring.
Open Thermocouple Detection
Two option shunts must be installed for each thermocouple
channel that requires open sensor detection.
For example, install shunts E7 and E8 to enable the SCC for
sensor channel 4.
Connections
The following diagrams show how sensors are connected to the
TB. In both illustrations, the removable terminal block is shown
as viewed from the top.
Calibration
TB boards may be freely interchanged because their onboard
temperature sensors are calibrated. Although the sensor is
factory calibrated, it may be necessary to recalibrate it after
extended time in service or due to exposure to extraordinary
environmental stress.
Calibration Procedure
1. Connect a calibrated Smart A/D™ to the TB. Connect a
calibrated thermocouple to the TB and immerse the “hot”
end into a precise, thermally controlled environment.
Allow at least ten minutes after power-up for the system to
warm up and stabilize.
2. On the TB, adjust potiometer R6, then reset and re-initialize
the Smart A/D™ and read the thermocouple data.
3. Repeat step 2 until the Smart A/D™ indicates the correct
thermocouple temperature.
Chan 0 1 2 3 4 5 6 7
Shunt
E15 E13 E11 E9 E7 E5 E3 E1
E16 E14 E12 E10 E8 E6 E4 E2
Chan Jumpers
0 E15 E16
1 E13 E14
2 E11 E12
3 E9 E10
4 E7 E8
5 E5 E6
6 E3 E4
7 E1 E2
+V
+I
-V
-I
S
4-Wire Resistance Measurement
+V
+I
-V
-I
S
Thermocouple Measurement
RED
Important note for thermocouple users:
Exposing the TB to thermal transients can severely
degrade thermocouple measurement accuracy. If you
are measuring thermocouples, insulate the TB from air
flows such as ambient drafts and cooling fans. For
best results, encase the TB in a protective enclosure.
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
PLUG-IN
TERMINAL
BLOCKS
SHx = Voltage Sense +
SLx = Voltage Sense -
PHx = Excitation +
PLx = Excitation -
SIGNAL FUNCTIONS:
2. INSTALL A SHUNT ON ANY CHANNEL THAT REQUIRES THERMOCOUPLE OPEN-SENSOR DETECTION.
PROTOTYPING
PAD MATRIX
PROTOTYPING
PAD MATRIX
PROTOTYPING
PAD MATRIX
PROTOTYPING
PAD MATRIX
PROTOTYPING
PAD MATRIX
NOTE 3
NOTES
3. REMOVE THESE JUMPERS ONLY IF CORRESPONDING SIGNALS ARE ROUTED THROUGH PROTOTYPING AREA VIA CUSTOM WIRING.
1. SHUNTS ARE FACTORY INSTALLED AT E1-E15 BUT ARE SECURED TO ONLY ONE POST.
NOTES 1, 2
PROTOTYPING
PAD MATRIX
GND
PROTOTYPING
PAD MATRIX
+12V
TO SMART A/D BOARD
THERMOCOUPLE REFERENCE
JUNCTION COMPENSATION
SENSOR
TO FIELD SENSORS
0500083S (7409TC.SCH)
A
TERMINATION BOARD, MODEL 7409TC
B
1 1Thursday, November 12, 1998
Title
Size Doc Rev
Date: Sheet of
Sensoray Company, Inc.
H0 L0
H1 L1
H2 L2
H3 L3
H4 L4
H5 L5
PH0PH0
SH0
H6 L6
H7 L7 SL0
PL0
H0 H0 SH0 SH0
PH1PH1
SH1
H1 H1 SH1 SH1
H2 H2 SH2 SH2 SL1
H3 H3 SH3 SH3 PL1
H4 H4 SH4 SH4
H5 H5 SH5 SH5
H6 H6 SH6 SH6
H7 H7 SH7 SH7
PH2PH2
SH2
L0 L0 SL0 SL0 SL2
L1 L1 SL1 SL1 PL2
L2 L2 SL2 SL2
L3 L3
L4 L4 SL4 SL4
L5 L5 SL5 SL5
PH3PH3
SH3
L6 L6 SL6 SL6
L7 L7 SL7 SL7
PL3
PH0 PH0
PH1 PH1
PH2 PH2
PH3 PH3
PH4PH4
SH4
PH4 PH4
PH5 PH5 SL4
PH6 PH6 PL4
PH7 PH7
PL0 PL0
PL1 PL1
PH5PH5
SH5
PL2 PL2
PL3 PL3 SL5
PL4 PL4 PL5
PL5 PL5
PL6 PL6
PL7 PL7
PH6PH6
SH6
SL6
PL6
SL0
PH7PH7
SH7SL1
SL2
SL7
PL7
SL5
SL6
SL7
SH0
SH1
SH2
SH3
SH4
SH5
SH6
SH7
SL3
SL4
SL3
SL3
SL3
E17
E19
E21
E23
E25
E27
E29
E31
E18
E20
E22
E24
E26
E28
E30
E32
E15
E13
E11
E5
E3
E1
E16
E14
E12
E10
E8
E6
E4
E2
C8 C7 C6 C2C3C4C5
R1
10K
R4
3.9K
U1
LM335
R5
3.3K
C1
0.1uF
P1
HEADER40ME
2
6
10
14
18
22
26
30
4
8
12
16
20
24
28
32
1
5
9
13
17
21
25
29
3
7
11
15
19
23
27
31
36
37
38
33
34
39
40
SH0
SH1
SH2
SH3
SH4
SH5
SH6
SH7
SL0
SL1
SL2
SL3
SL4
SL5
SL6
SL7
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
PL0
PL1
PL2
PL3
PL4
PL5
PL6
PL7
+12V
TREF
GND
GND
GND
SHLD
SHLD
RN2
1M-SIP
1
2
3
4
5
6
7
8
9
10
R6
1K-POT
J1
1
2
3
4
5
J2
1
2
3
4
5
J3
1
2
3
4
5
J4
1
2
3
4
5
J5
1
2
3
4
5
J6
1
2
3
4
5
J7
1
2
3
4
5
J8
1
2
3
4
5
TB1
1
2
3
4
5
TB2
1
2
3
4
5
TB3
1
2
3
4
5
TB4
1
2
3
4
5
TB5
1
2
3
4
5
TB6
1
2
3
4
5
TB7
1
2
3
4
5
TB8
1
2
3
4
5
RN1
1M-SIP
1
2
3
4
5
6
7
8
9
10
E7
E9
Note1
F1
FUSE
R3
1K
R2
12K
S20
S24
S28
S32
S36
S40
S44
S48
S18
S21
S25
S29
S33
S37
S41
S45
S49
S19
S23
S27
S31
S35
S39
S43
S47
S22
S26
S30
S34
S38
S42
S46
S50
S2
S4
S6
S8
S10
S12
S14
S16
S17
S1
S3
S5
S7
S9
S11
S13
S15
pwb1
0400084
RevA
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Sensoray 7409TC/7409TDIN Owner's manual

Sensoray
Brand
Sensoray
Model
7409TC/7409TDIN
Type
Owner's manual

Sensoray 7409TC/7409TDIN Termination Boards break out any 40-pin Smart A/D™ header connector onto screw terminals for easy sensor connection. Eight sensor channels each have a dedicated, five-circuit, removable terminal block. Option shunts enable interruption of input signal paths, and a prototyping area with plated-through pads is provided for custom circuitry. Signal conditioning circuits facilitate thermocouple open sensor detection and a calibrated temperature sensor provides thermocouple compensation.

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