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The TT820 is a low cost microprocessor-based 2-wire DIN rail-mounting transmitter.
The TT820 features a one point calibration adjustment with two push buttons as well as an advanced software programming via the RS-232 input.
The advanced programming allows two points calibration, re-scaling, filtering options and identification of the transmitter.
TT820 is designed for highest reliability and excellent industrial performance. Automatic cold junction compensation and a low-drift input amplifier maintain accuracy under varying ambient conditions.
Features- Microprocessor-based design
- Linearized output to temperature
- 2-wire loop-powered 4-20 mA output
- Input T/C with cold junction compensation
- Factory calibrated
- Re-programmable via PC
- Metal housing
- Fits standard heads
Specifications
Accuracy
- 0.5 % of Full Scale (Includes Effects of Linearity, Hysteresis & Repeatability)
- J Thermocouple Cold Junction Error: ± 2° C (± 3.6° F) - Max.
- K Thermocouple Cold Junction Error: ± 1° C (± 1.8° F) - Max.
- T, E Thermocouple Cold Junction Error: ± 3° C (± 5.4° F) - Max.
Adjustment Type
- Factory Calibrated
Communication
- RS-232
Enclosure Finish
- Enamel Painted
Enclosure, Body Material
- Die Cast Zinc
Operating Temperature
- -40° to 80° C (-40° to 176° F)
Output
- 4-20 mA Loop Powered
Power Supply
- 12-32 Vdc, Polarity Protected
Power Supply Effect
- 0.02 %/V
Resistance
- Sensor Lead Resistance: 10 kiloohms, Max.
Sensor, Probe Connection
- 2-Wire
Sensor, Probe Type
- E Thermocouple
- J Thermocouple
- K Thermocouple
- T Thermocouple
Storage Temperature
- -40° to 80° C (-40° to 176° F)
Temperature Range
- -50° to 1,200° C (-58° to 2,192° F)
Thermal Drift
- Span & Zero (Including Cold Junction Drift): ± 0.01 % of Full Scale/°C
Update Time
- Warmup: 30 seconds
