 The
TT820D is a digital transmitter that converts the signal from a
thermocouple to a linearized 4-20 mA output. The TT820D 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 a two points calibration, a re-scaling, iltering
options and identification of the transmitter.
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- Power
Supply : 12-36V DC, polarity protected
- Input
: Thermocouples type J, K, T, E
- Output
: 4-20mA
- Supply
Voltage Effect : ±0.02 % / V
- Load
Capability : Rmax.= ( Vsupply - 12V ) / 20mA
- Zero
Drift : ±0.1 % / °C
- Span
Drift : ±0.1 % / °C
- Ambient
Operating Temperature : - 40 to +80 °C ( -40 to +158 °F
)
- Warm-up
time : 30 sec.
- Accuracy
:
- K,
E, J, T : ±0.5 % of FS
- Cold
Junction Compensation Error :
- K
: ±1 °C max. at - 20 to 50 °C
- J
: ±2°C max. at - 20 to 50 °C
- T,
E : ±3 °C max. at - 20 to 50
°C
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