GE 8106-TI-RT 4-channel RTD input
8132-AI-UN
• 8 isolated, universal, input channels
• Configurable on a channel by channel
basis: 4-20mA, THC, RTD, resistance &
voltage
• 250V ac rms channel to channel
isolation
• Thermocouple types B, E, J, K, N, R, S, T,
W3, W5, Russian K, Russian L
• RTD Types Pt100, jPt100, Pt200, Pt500,
Ni120, Cu10
• Volt input types ±120mV, 0-1V, 0-5V,
1-5V, 0-10V, ±10V
• 2 or 3-wire RTDs
• 2 or 4-wire transmitters
• Non-incendive field circuits
• 24 V dc bussed field power required
MODULE SPECIFICATION
See also System Specification
INPUTS
Number of configurable channels
• 8, isolated
4-20MA INPUTS
Nominal signal range
• 4 to 20mA
Span
• 0 to 25mA
Output voltage (@ 20mA)
• 13.5 V (min.)
Output current (linear operation)
• 25 mA (max.)
Output short circuit current (max.)
• 75 mA for 100ms (Output turns off after ~100ms
at more than 25mA)
Input current (max.)
• 30mA (continuous)
Calibration accuracy
• 10°C to 40°C – ± 0.1% of span
• -40°C to 70°C – ± 0.3% of span
Resolution
• 15 bits (typ.)
Repeatability
• 0.05% of span
THERMOCOUPLE INPUTS
THC Types
• B, E, J, K, N, R, S, T, W3, W5, Russian K, Russian L
(See table for temperature ranges)
Calibration accuracy (See table for ranges & error)
• 10°C to 40°C – ± 0.1% of span (typ.)
• -40°C to 70°C – ± 0.2% of span (typ.)
Cold junction compensation error†
• < ±1°C (–40°C to + 70°C)
Resolution
• 14 bits (typ.)
Optional open circuit bleed current
• ± 0.9uA (nom.)
Open circuit detection time
• 1 sec (with < 0.5μF cable capacitance)
RTD INPUT (2 OR 3 WIRE)
RTD types
• Pt100, Pt200, Pt500, Cu10, Ni120; jPt100
Maximum wire resistance
• 40 ohms
Calibration accuracy 3-wire (See table for ranges & error)
• 10°C to 40°C – ± 0.1% of span (typ.)
• -40°C to 70°C – ± 0.2% of span (typ.)
RTD excitation current
• Selected for ~0.2 mW at 0°C
Resolution
• 14 bits (typ.)
Open circuit detection time
• 1 sec (with < 0.5μF cable capacitance)
RESISTANCE INPUT (2 OR 3 WIRE)
Input resistance range (span)
• 0 to 110, 280, 470 and 1000 ohms
Calibration accuracy 3-wire
• 10°C to 40°C – ± 0.2% of span
• -40°C to 70°C – ± 0.4% of span
Calibration accuracy 2-wire
• 10°C to 40°C (except 110 Ohm scale) –
+/-0.2% of span
• 10°C to 40°C (110 Ohm scale) – +/-0.3% of span
• 70°C to -40°C (except 110 Ohm scale) –
+/-0.4% of span
• 70°C to -40°C (110 Ohm scale) – +/-0.5% of span
Maximum wire resistance
• 40 ohms
Resistance excitation current
• Selected for ~1.0 mW at max R
Resolution
• 14 bits (typ.)
VOLTAGE INPUT
Nominal signal range 1 (span)
• ±120 mV, 0-1 V, 0-5V, 1-5V, 0-10V, ±10V (see table
for calibration accuracy over temperature)
Resolution
• 14 bits (typ.)

Sensor type
• User selectable
Alarms
• High-high, high, low and low-low
Alarm deadband (hysteresis)
• User defined value
Input dead zone
• User defined value
Channel status
• Active / inactive
Filter/sample rates
• User selectable
GENERAL SPECIFICATIONS
Common mode rejection (using 50/60Hz filter)
• > 120 dB @ 50/60 Hz
Series mode rejection (using 50/60Hz filter)
• > 65 dB @ 50/60 Hz
Maximum input voltage (except current I/P)
• ± 25V
Common mode voltage between channels
• 250 V ac rms
Isolation
• Channel to channel – 250 V ac rms
• Any channel to Railbus – 250 V ac rms
• Any channel to Bussed Field Power – 250 V ac rms
• Railbus to Bussed Field Power – 150 V ac rms
Input filter response
• Time constant 4 ms
Input impedance
• > 1 M ohm
Data Format
• 0 to 65535 corresponds to selected span
RESPONSE TIME
Signal change on any channel to availability
on Railbus
• Dependent on user-selectable filter/sample rates
Note: For those inputs requiring multiple measurements, i.e. resis tance and RTD, the minimum response time is 55 ms. See also on this
page Tradeoff of Resolution for module throughput.
Open circuit detection
• < 1 sec (with < 0.5μF cable capacitance)
SAFETY
FM non-incendive field wiring parameters
(each channel)
• Voc = 20 V; Isc = 75mA; Ca
= 0.61μF; La
= 11.3mH
POWER SUPPLIES
Railbus (12V) current
• 60 mA (typ.)
• 100 mA (max.)
Bussed Field Power
• @ 24 V dc ± 10%
• All configurations (except 4/20mA with excitation) –
125 mA (max.)
• 4/20mA with excitation – 300 mA (max.)
MECHANICAL
Module Key Code
• A1*
Module width
• 42mm
Weight
• 230g
*
WARNING If this module is being used in an applica tion that requires 250V ac rms channel-to-channel
isolation, it must be replaced only with an A1 key code
module that has equivalent, or better, channel-to channel isolation rating.
Tradeoff of Resolution for Module Throughput
The module offers ~15 bit effective resolution on all
channels. The module also offers several analog-to digital conversion options that allow higher speed
signals to be selectively read more quickly on a
channel-by-channel basis.
Note however, that at the highest speeds, uncertainty
in value of the lower bits will increase, resulting in
reduced resolution. The following table indicates the
approximate effect on resolution of higher speeds.