4-20 mA Thermocouple Transmitter

TC Types	Range	Conformity Error
J	-210°C to +760°C (-347°F to +1400°F)	±0.09°C (±0.16°F)
K	-244°C to +1372°C (-408°F to +2501°F)	±0.1°C (±0.17°F)
T	0°C to +400°C (32°F to 752°F) -257°C to 0°C (-430°F to +32°F)	±0.03°C (±0.05°F) ±0.2°C (±0.36°F)
E	-240°C to +1000°C (-400°F to +1830°F)	±0.18°C (±0.32°F)
N	-245°C to +1300°C (-410°F to +2370°F)	±0.10°C (±0.17°F)
R	-45°C to +1768°C (-49°F to +3214°F)	±0.17°C (±0.31°F)
S	-46°C to +1768°C (-51°F to +3213°F)	±0.12°C (±0.22°F)

Analog Input
Calibration Input resistance Input current Max lead resistance Overall accuracy Span tempco Ref junction tempco Overvoltage protection NMR at 50/60 Hz CMR, DC-60 Hz CMV, DC-60 Hz Open sensor indication	NIST Monograph 125 (IPTS-68) 1 GΩ 100 pA 1 kΩ max for rated accuracy ±0.01 of full scale ±2 counts ±0.003% of reading/°C ±0.02 deg/deg 125 Vac 80 dB plus selectable filter from 80 ms to 9.6 s time constant 120 dB with 500Ω imbalance 250 Vac from power and earth grounds 0 mA or > 20 mA output, selectable
Analog Output (standard)
Output Levels Compliance, 4-20 mA Compliance, 0-10V Output Resolution Output Accuracy Output Isolation Step response time	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 50 ms
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
Serial Communications (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.
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
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
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.

Laureate 4-20 mA Thermocouple Temperature Transmitter

With the optional dual solid state relay output option, which has a typical response time of only 17 ms, Laureate temperature meters and transmitters can serve as extremely fast and accurate ON/OFF controllers for closed-loop temperature control. They can also serve as supervisory process monitors and provide alarms or shutoffs when processes exceed normal limits.

Multiple setpoint operating modes are individually selectable for each relay, as explained in the dual-setpoint controller page. Relay duty cycles and chatter can be minimized with programmable hysteresis and time delays. A band deviation operating mode can be selected for each relay, where an alarm is generated whenever the reading is a selected number of counts above or below the setpoint. The relay modes have to be non-latching, since 4-20 mA temperature transmitters do not offer external reset.