Ogden ETR-3200, Инструкция по эксплуатации

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Power Wiring:
Connect terminals as shown in Figure 4.3. The power
switch S1 and Fuse F1 are included for illustrative
purpose only. Refer to Figures 4.4, 4.5, 4.6, 4.7 on the
following pages for sample wiring diagrams.
Input Wiring:
Connect the appropriate sensor to terminals 8, 9, 10, 11
or 12 as illustrated in Figure 4.3. Verify that the instru-
ment is selected for the correct sensor and the correct
polarity is observed at both the sensor-end and instru-
ment-end of the cable. Do not run sensor cables in the
same conduit or wiring trough as the power lines,
because the low level signal is noise sensitive.
When wiring the thermocouple, check the thermocouple
and extension wire (compensating cable) to make sure
they conform to the appropriate thermocouple type
specified by the instrument. Extension wires must be
the same alloy and polarity as the thermocouple. The
total lead resistance should not exceed 100 ohms for
accurate measurements. One hundred ohms of lead
resistance will introduce a 1°F (0.5°C ) error.
For wiring 3 wire RTD (Resistance Temperature
Detector) all leads connecting the RTD to the controller
must be the same gauge and material. If the RTD is a
3 wire device, install the two common wires of the RTD
to terminals 10 and 11. If a 2 wire RTD is to be used,
install a jumper between terminals 10 and 11.
See page 21 for instructions to re-range the input to
volts, milli-volts or milli-amps.
1 2 3 4 5 6 7
8 9 10
11 12 13 14
+
–
RTD
A
B
B
PTA
TC–
MV–
COM+
mA–
V–
+
–
MV
90-264
VAC
50/60Hz
ALARM/COOLING
OUTPUT
Power
Input:
S1
F1
Current
+
+
–
–
V
Pulsed
Voltage
20-32/VDC/VAC
Optional
CONTROL
OUTPUT
Current
+
+
–
–
V
Pulsed
Voltage
TX1 TX2
0 -20mA
4 - 20mA
OPTIONAL
RS-485
INTERFACE
OR
0 - 10V
UNIVERSAL INPUT
Relay or Triac
Relay
N/O N/O
C
C
L
N
THERMOCOUPLE
RETRANSMISSION
OUTPUT.
Refer to page 21 for
instructions.
Figure 4.3 Rear Terminal Connections
Thermocouple Cable American
British German French
Type Material ANSI
BS DIN NFE
1843 43710 18001
J Iron/Constantan
+ white
- red
* black + yellow
- blue
* black
+ red
- blue
* blue + yellow
- black
* black
K Chromel/Alumel
+ yellow
- red
* yellow + brown
- black
* red
+ red
- green
* green + yellow
- purple
* yellow
T
Copper/
Constantan
+ white
- blue
* blue
+ blue
- red
* blue
+ red
- brown
* brown + yellow
- black
* black
R
S
Platinum/Rhodium
+ white
- blue
* green + black
- red
* green + red
- white
* white + yellow
- green
* green
B Platinum/Rhodium
+ grey
- red
* grey
+ red
- grey
* grey
Table 4.1 International Thermocouple Cable Color Codes
* Color of overall sheath
Chromel® and Alumel® are registered trademarks of Hoskins Mfg. Co.