ESTC-P
18.5x90 mm, Rail Mounted, Multi Input, Modbus RTU (RS-485) Signal-Temperature Converter
Current input: 0…20mA, 4…20mA
Voltage input: 0…150mV, 0…5V, 1…5V, 0…10V
Thermocouple input: E, J, K, L, N, R, S, T, U
PT100 (EN 60751) resistance thermometer input
Readout and configuration over Modbus RTU (RS-485)
3-way isolation: input, communication, power supply
Rail-mountable enclosure
CE certified according to EN standards
Manuals
Electrical Specifications
Supply Voltage
24VDC (±5%)
Power Consumption
Maximum 6W
Measurement Accuracy
± 0.5% (full scale)
Isolation
1.5 kVrms between input, communication and power supply
Line Resistance
Max 100Ω for thermocouple, max 20Ω for PT100
Input Impedance
100Ω for current inputs, 100kΩ for voltage inputs
Wiring
1.5mm² terminal
Data Retention
FLASH memory (min 20 years)
EMC
EN 61326-1: 2021 (Performance criterion B for EN 61000-4-3 standard is met)
Safety Requirements
EN 61010-1: 2010 (Pollution degree 2, overvoltage category II)
Inputs
Current Input
0…20mA, 4…20mA, ± 0.5% (full scale)
Millivolt Input
0…150mV, ± 0.5% (full scale)
Voltage Input
0…5V, 1…5V, 0…10V, ± 0.5% (full scale)
PT100 Resistance Thermometer
EN 60751, -200…600°C / -328…1112°F, ± 0.5% (full scale)
E (NiCr-CuNi) Thermocouple
EN 60584, 0…1000°C / 32…1832°F, ± 0.5% (full scale)
J (Fe-CuNi) Thermocouple
EN 60584, 0…600°C / 32…1112°F, ± 0.5% (full scale)
K (NiCr-Ni) Thermocouple
EN 60584, 0…1300°C / 32…2372°F, ± 0.5% (full scale)
L (Fe-CuNi) Thermocouple
DIN 43710, 0…600°C / 32…1112°F, ± 0.5% (full scale)
N (NiCrSi-NiSi) Thermocouple
EN 60584, 0…1300°C / 32…2372°F, ± 0.5% (full scale)
R (Pt13Rh-Pt) Thermocouple
EN 60584, 0…1700°C / 32…3092°F, ± 0.5% (full scale)
S (Pt10Rh-Pt) Thermocouple
EN 60584, 0…1700°C / 32…3092°F, ± 0.5% (full scale)
T (Cu-CuNi) Thermocouple
EN 60584, 0…400°C / 32…752°F, ± 0.5% (full scale)
U (Cu-CuNi) Thermocouple
DIN 43710, 0…600°C / 32…1112°F, ± 0.5% (full scale)
Communication
Interface
RS-485, isolated
Protocol
Modbus RTU (slave)
Baud Rate
2400 - 57600 bps, default 9600 bps
Slave Address
1 - 247, default 1
Environmental Specifications
Ambient/Storage Temperature
0…+50°C / -25…+70°C (without icing)
Relative Humidity
Up to 31°C 80%, then linearly decreasing to 50% at 40°C
Protection Rating
IP20 according to EN 60529
Operational Height
Max. 2000m
Outputs
Analog Output (mA)
0…20mA / 20…0mA / 4…20mA / 20…4mA DC, load resistance max 300ohm
Analog Output (V)
0…5V / 5…0V / 0…10V / 10…0V / -5…+5V, max 10mA (short-circuit protection)
Output Accuracy
± 0.2% (full scale)
Housing
Mounting Style
Mountable on rail (according to DIN 43 700)
Dimensions
W18.5xH90xD66 mm
Weight
Approx. 120g (with packaging)
Housing Material
Self-extinguishing plastics used
Electrical Specifications
Supply Voltage
24VDC (±5%)
Power Consumption
Maximum 6W
Measurement Accuracy
± 0.5% (full scale)
Isolation
1.5 kVrms between input, communication and power supply
Line Resistance
Max 100Ω for thermocouple, max 20Ω for PT100
Input Impedance
100Ω for current inputs, 100kΩ for voltage inputs
Wiring
1.5mm² terminal
Data Retention
FLASH memory (min 20 years)
EMC
EN 61326-1: 2021 (Performance criterion B for EN 61000-4-3 standard is met)
Safety Requirements
EN 61010-1: 2010 (Pollution degree 2, overvoltage category II)
Environmental Specifications
Ambient/Storage Temperature
0…+50°C / -25…+70°C (without icing)
Relative Humidity
Up to 31°C 80%, then linearly decreasing to 50% at 40°C
Protection Rating
IP20 according to EN 60529
Operational Height
Max. 2000m
Inputs
Current Input
0…20mA, 4…20mA, ± 0.5% (full scale)
Millivolt Input
0…150mV, ± 0.5% (full scale)
Voltage Input
0…5V, 1…5V, 0…10V, ± 0.5% (full scale)
PT100 Resistance Thermometer
EN 60751, -200…600°C / -328…1112°F, ± 0.5% (full scale)
E (NiCr-CuNi) Thermocouple
EN 60584, 0…1000°C / 32…1832°F, ± 0.5% (full scale)
J (Fe-CuNi) Thermocouple
EN 60584, 0…600°C / 32…1112°F, ± 0.5% (full scale)
K (NiCr-Ni) Thermocouple
EN 60584, 0…1300°C / 32…2372°F, ± 0.5% (full scale)
L (Fe-CuNi) Thermocouple
DIN 43710, 0…600°C / 32…1112°F, ± 0.5% (full scale)
N (NiCrSi-NiSi) Thermocouple
EN 60584, 0…1300°C / 32…2372°F, ± 0.5% (full scale)
R (Pt13Rh-Pt) Thermocouple
EN 60584, 0…1700°C / 32…3092°F, ± 0.5% (full scale)
S (Pt10Rh-Pt) Thermocouple
EN 60584, 0…1700°C / 32…3092°F, ± 0.5% (full scale)
T (Cu-CuNi) Thermocouple
EN 60584, 0…400°C / 32…752°F, ± 0.5% (full scale)
U (Cu-CuNi) Thermocouple
DIN 43710, 0…600°C / 32…1112°F, ± 0.5% (full scale)
Outputs
Analog Output (mA)
0…20mA / 20…0mA / 4…20mA / 20…4mA DC, load resistance max 300ohm
Analog Output (V)
0…5V / 5…0V / 0…10V / 10…0V / -5…+5V, max 10mA (short-circuit protection)
Output Accuracy
± 0.2% (full scale)
Communication
Interface
RS-485, isolated
Protocol
Modbus RTU (slave)
Baud Rate
2400 - 57600 bps, default 9600 bps
Slave Address
1 - 247, default 1
Housing
Mounting Style
Mountable on rail (according to DIN 43 700)
Dimensions
W18.5xH90xD66 mm
Weight
Approx. 120g (with packaging)
Housing Material
Self-extinguishing plastics used