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Modbus & Serial Output RTD Temperature Transmitter
Exceptional linearity & accuracy at high update rates.
DIN Rail mounted, digitally programmable.
Key Features
- Factory calibrated for 100Ω platinum, 10Ω copper & 120Ω nickel RTDs
- 2, 3 or 4-wire RTD connection with lead resistance compensation
- RS232 or RS485 serial communications, half or full duplex, isolated
- Modbus RTU, Modbus ASCII or Laurel ASCII protocol
- Output update rate to 60/sec
- User selectable spans from entire RTD range down to 15.0°
- Detachable screw-clamp connectors
- Isolated analog output, 4-20 mA or 0-10V, 16-bit resolution
- Dual solid state relays for alarm or control, isolated
Laureate Modbus & Serial Output RTD Temperature Transmitter
RTD
Metal |
Alpha |
R at
0°C |
R at top
of range |
Excitation
Current |
Range |
Conformity
Error |
| Platinum |
0.003850
(DIN) |
100Ω |
390.48Ω
at 850°C |
196 µA |
-200°C to +850°C
-328°F to +1562°F |
±0.03°C
±0.05°F |
| Platinum |
0.003902
(ANSI) |
100Ω |
394.36Ω
at 850°C |
196 µA |
-200°C to +850°C
-328°F to +1168°F |
±0.04°C
±0.07°F |
| Nickel |
0.00672 |
120Ω |
380.31Ω
at 850°C |
196 µA |
-80°C to +260°C
-112°F to +500°F |
±0.05°C
±0.09°F |
| Copper |
0.00427 |
9.035Ω |
19.116Ω
at 850°C |
5.0 mA |
-97°C to +260°C
-143°F to +500°F |
±0.05°C
±0.09°F |
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RTD Input |
Calibration, Pt
100 DIN
Calibration, Pt 100 ANSI
Configuration
Excitation current
Overall accuracy
Span tempco
Zero tempco
Sensor lead resistance
tempco per conductor
Over-voltage protection
Open sensor indication |
IEC 751 (IPTS-68)
NIST Monograph 126
2, 3 or 4-wire connection
0.2 mA
±0.01 of full scale ±2 counts
±0.003% of reading/°C
±0.03 deg/deg
2-wire, 10 mdeg/Ω/deg up to 10Ω
3 & 4-wire, 10 mdeg/Ω/deg up to 100Ω
125 Vac
0 mA or > 20 mA output, selectable |
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Serial Data Output
(standard) |
Signal Types
Data Rates
Output Isolation
Serial Protocols
Modbus Modes
Modbus Compliance
Digital Addressing |
RS232 or RS485 (half or full duplex)
300, 600, 1200, 2400, 4800, 9600, 19200 baud
250V rms working, 2.3 kV rms per 1 min test
Modbus RTU, Modbus ASCII, Laurel ASCII
RTU or ASCII
Modbus over Serial Line Specification V1.0 (2002)
247 Modbus addresses.
Up to 32 devices on an RS485 line w/o a repeater. |
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Analog Output (standard) |
Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Isolation |
4-20 mA, 0-20 mA, 0-10 Vdc (jumper selectable)
10V ( 0-500Ω load )
2 mA ( 5 kΩ load or higher)
16 bits (65,536 steps)
0.02% of output span plus conversion accuracy
250V rms working, 2.3 kV rms per 1 minute test |
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Dual Relay Output (standard) |
Relay Type
Load Rating |
Two solid state relays, SPST, normally open,
Form A
130 mA at 140 Vac or 180 Vdc |
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Power Input |
Standard Power
Low Power Option
Power Frequency
Power Isolation
Power Consumption |
85-264 Vac or 90-300 Vdc (DC operation not UL
approved)
10-48 Vdc or 12-32 Vac
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
2W typical |
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Mechanical |
Dimensions
Mounting
Electrical Connections |
129 x 104 x 22.5 mm
case
35 mm rail per DIN EN 50022
Plug-in screw-clamp connectors |
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Environmental |
Operating Temperature
Storage Temperature
Relative Humidity
Cooling Required |
0°C to 55°C
-40°C to 85°C
95% at 40°C, non-condensing
Mount transmitters with ventilation holes at top and bottom.
Leave 6 mm (1/4") between transmitters, or force air with a fan. |
Pinout
Laureate Modbus & Serial Output RTD Temperature Transmitter
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