Modbus & Serial Output Thermocouple Transmitter

Exceptional linearity & accuracy at high update rates. DIN Rail mounted, digitally programmable.

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Key Features

Universal AC switching power supply for 85-264 Vac
DIN rail mount housing only 22.5 mm wide
Detachable screw-clamp connectors
User selectable 4-20 mA, 0-20 mA or 0-10 Vdc linearized analog output
Analog output resolution: 0.0015% of span (16 bits)
Dual solid state relays for alarm or control, isolated
Factory calibrated for thermocouple types J, K, T, E, N, R, S
RS232 or RS485 serial communications, half or full duplex, isolated
Modbus RTU, Modbus ASCII or Laurel ASCII protocol
Highly accurate and repeatable
Upscale or downscale open sensor indication

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 (-40°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)

Thermocouple Input
Calibration Input resistance Input current Max lead resistance Overall accuracy Span tempco Reference junction tempco Span tempco Over-voltage 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 ±0.003% of reading/°C 125 Vac 80 dB plus selectable filter from 80 ms to 9.6 s time constant 120 dB with 500 W imbalance 250 Vac from power and earth grounds 0 mA or > 20 mA output, selectable
Serial Data Output (standard)
Signal levels Data Rates Output Isolation Serial Protocols Devices on RS485 Line Modbus Addresses Modbus Modes Modbus Compliance	RS232 or RS485 (half 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 (selectable) 32 max without a repeater 247 max RTU or ASCII, 2-wire Modbus over Serial Line Specification V1.0 (2002)
Analog Output
Output Levels Compliance, 4-20 mA Compliance, 0-10V Output Resolution Output Accuracy Output Isolation	0-20 mA or 0-10 Vdc (selectable) 10V ( 0-500 ohm load ) 2 mA ( 5 kΩ load ) 16 bits (65,536 steps) 0.02% of output span plus conversion accuracy 250V rms working, 2.3 kV rms per 1 minute test
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
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, 3W with max excitation output
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.