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Pyromation Series 442 Programmable HART® Temperature Transmitter

Programmable HART® Temperature Transmitter
Series 442

The Series 442 programmable HART® temperature transmitter is a two-wire transmitter with an analog output. It has measurement input for resistance thermometers (RTD) in 2, 3 or 4 wire connection, thermocouples, resistance and voltage. Setting up of the transmitter is done using the 442-MODEM or HART® hand-operating module (275 or 375). These small units can be mounted in Pyromation DIN (Form B) heads or they can be used for surface mounting by using a 35 mm DIN rail mounting clip.

• Universal settings with HART® protocol for various signals.
• Galvanic isolation
• 2 wire technology, (4 to 20) mA analog output
• High accuracy in total ambient temperature range
• Fault signal on sensor break or short circuit
• RFI/EMI Protected, marked
• UL Recognized Component
• Intrinsically safe and non-incendive for hazardous locations
• Output simulation

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Table 1Table 2Table 3
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Table 1442-00¹
442442
Table 2DESCRIPTION
1Thermocouple (TC)
2RTD (2-wire)
3RTD (3-wire)
4RTD (4-wire)
JType J thermocouple
KType K thermocouple
TType T thermocouple
NType N thermocouple
EType E thermocouple
RType R thermocouple
SType S thermocouple
BType B thermocouple
85100 ohm platinum (α = 0.00385⁻¹)
55500 ohm platinum (α = 0.00385⁻¹)
951000 ohm platinum (α = 0.00385⁻¹)
MVMillivolts (0.00385)
WResistance
UUpscale Burnout ≥ 21.0 mA
DDownscale Burnout ≤ 3.6 mA
CCelsius
FFahrenheit
Table 3Range
S(50-300)S( lower limit – upper limit)
ACCURACY:
Reference conditions Calibration temperature (23 ± 5) ºC [73 ± 9] ºF
Resistance Thermometer (RTD:    TYPE: MEASUREMENT ACCURACY:
Resistance 0.2 °C or 0.08%
Pt500, Ni500 0.5 °C or 0.20%
Pt1000, Ni1000 0.3 °C or 0.12%
Resistance (Ω):  TYPE: MEASUREMENT ACCURACY: MEASUREMENT RANGE:
Resistance  ± 0.1 Ω or 0.08% (10 to 400) Ω
± 1.5 Ω or 0.12% (10 to 2000) Ω
Thermocouple (TC): TYPE: MEASUREMENT ACCURACY:
K, J, T, E, L, U 0.5 °C or 0.08%
N, C, D 1.0 °C or 0.08%
S, B, R MoRe5-MoRe41 2.0 °C or 0.08%
Influence of the internal reference junction Pt100 ± (0.30 + 0.005 |t|) °C
|t| = value of temperature without regard to sign °C
Voltage (mV): TYPE: MEASUREMENT ACCURACY: MEASUREMENT RANGE:
Millivolt (mV) ± 20 μV or 0.08% (-10 to 100) mV


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