Yokogawa Electric Corporation - TC10 - ENGINEERING MANUAL - PAG. 4
2.4 SERIAL INTERFACE
D +
D -
D +
D -
D +
D -
D +
D -
RS-485
5
6
Interface type:
Isolated (50 V) RS-485;
Voltage levels:
According to EIA standard;
Protocol type:
Modbus RTU;
Byte format:
8 bit with no parity;
Stop bit:
1 (one);
Baud rate:
Programmable between 1200 to 38400 baud;
Address:
Programmable between 1 to 254.
Notes: 1.
RS-485 interface allows to connect up to 30
devices with one remote master unit.
2.
The cable length must not exceed 1.5 km at
9600 baud.
2.5 POWER SUPPLY
Power Supply
9
10
Neutral
Line
Supply Voltage:
• 24 VAC/DC (±10%);
• 100 to 240 VAC (-15 to +10%).
Notes: 1.
Before connecting the instrument to the power
line, make sure that line voltage is equal to the
voltage shown on the identification label;
2.
The polarity of the power supply has no importance;
3.
The power supply input is NOT fuse protected.
Please, provide a T type 1A, 250 V fuse externally.
3. TECHNICAL CHARACTERISTICS
3.1 TECHNICAL SPECIFICATION
Case:
Plastic, self-extinguishing degree: V-0 according to UL 94;
Front protection:
IP 65 (when the optional panel gasket is
mounted) for indoor locations according to EN 60070-1;
Terminals protection:
IP 20 according to EN 60070-1;
Installation:
Panel mounting;
Terminal block:
16 screw terminals for cables of
0.25 to 2.5 mm
2
(AWG22 to AWG14) with connection diagram,
tightening torque 0.5 Nm;
Dimensions:
48 x 48, depth 73 mm, (1.89 x 1.89 x 2.87 in.)
Panel cutout:
45
[-0, +0.6]
x 45
[-0, +0.6]
mm
(1.78
[- 0.000, +0.023]
x 1.78
[- 0.000, +0.023]
in.)
Weight:
180 g max..
Power supply: •
24 VAC/DC (±10% of the nominal value);
•
100 to 240 VAC (-15 to +10% of the
nominal value);
Power consumption:
4.5 VA max. (24 VAC/DC)
6.0 VA max. (100 to 240 VAC);
Insulation voltage:
2300 V rms according to EN 61010-1;
Display updating time:
500 ms;
Sampling time:
130 ms;
Resolution:
30000 counts;
Total Accuracy:
±0.5% F.S.V. ±1 digit @ 25°C of room
temperature;
Electromagnetic compatibility and safety requirements
Compliance:
directive EMC 2004/108/CE (EN 61326-1),
directive LV 2006/95/CE (EN 61010-1),
UL 61010-1 CSA 61010-1;
Note:
During the test, the instrument continues to operate at
the measurement accuracy within specification.
Installation category:
II;
Pollution category:
2;
Temperature drift:
It is part of the global accuracy;
Operating temperature:
0 to 50°C (32 to 122°F);
Storage temperature:
-30 to +70°C (-22 to +158°F);
Humidity:
20 to 90% RH, not condensing.