2-Wire Temperature Transmitter for RTDs or Thermocouples Conax Model: HPTI

2-Wire Temperature Transmitter for RTDs or Thermocouples Conax Model: HPTI

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Description

The Conax Model HPTI is a small, isolated, 2-wire temperature transmitter for RTD or thermocouple sensors, and is designed to fit in our popular T11 model terminal head.
The HPTI housing has a removable base allowing access to the electronics for the purpose of temperature range changes, which are easily accomplished with plug-in resistors.

Specifications
Isolation (I/O) 1,000VDC or peak AC
Output SPAN 4-20mA, limiting @ <28mA
Input

RTD: 100Ω, 2 or 3 wire connection

TC: all known types

Input SPAN

RTD: 20°C min., 500°C max.

T/C: 5mV min. SPAN

Adjustability ±15% for both ZERO and SPAN
Burnout Detection Upscale, Standard
Supply Voltage 8-38 VDC polarity protected
Maximum Load Rmax = (V supply – 8V) ÷ 20mA
Ambient Temp. -20°C to +70°C
Humidity 0-95% RH, non-condensing
Linearity

RTD: Better than ± 0.1% of SPAN referred to sensor temperature

TC: Better than ±0.1% of SPAN referred to mV input level

Stability (for both ZERO and SPAN)

RTD: (100°C SPAN): 0.03% of SPAN/°C

TC: (25mV SPAN): 0.02% of SPAN/°C

Reference Junction Compensation T/C: <0.05°C/°C of ambient temp.
Accuracy 0.1% of SPAN (+ 0.5°C, TC only) typical

 

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