QA-TEMP

Single Channel Temperature to Modbus
  • Features
    • Thermocouple to Modbus RTU
    • RTD to Modbus RTU
    • Resistance to Modbus RTU
    • Potentiometer to Modbus RTU
    • Datalogger
    • 4-20 mA 0-20 mA and 0-10V Output
    • Relay Output
    • DIN Rail Mount






Single Channel Temperature to Modbus

Single Channel 4-20 mA to Modbus

QA-TEMP Description

The QA-TEMP is a temperature to Modbus RTU converter with a 4-20 mA, 0-10 V, and relay output. The QA-TEMP accepts inputs from Thermocouples, RTD, Resistance, and Potentiometers. It also has a built-in Datalogger that can record the temperature every second. The input, output, power supply, and Modbus RTU port are galvanically isolated from each other at 1.5 kV. The thermocouples that can be accepted are J, K, R, S, T, B, E, and N-type. The RTD's that can be measured are Pt100, Pt500, Pt1000, and Ni100, with the option of 2, 3, or 4 wire. It will also read 1 Kohm and 10 Kohm potentiometers and resistance up to 4 Kohm.
The QA-TEMP can be set up with the Modbus RS485 port or the USB on the front of the Instrument with the software downloadable from the www.qeedusa.com website.

QA-TEMP Applications

Thermocouple to Modbus RTU

The QA-Temp can measure mV from various thermocouples such as J, K, R, S, T, B, E, and N. Linearize the signal and convert to a Modbus RTU digital output.

RTD to Modbus RTU

The QA-Temp can convert the resistance measure across a PT100, Pt500, Pt1000, and a NI100 platinum temperature sensors.

Potentiometer to Modbus RTU

The QA-Temp can measure mV from various thermocouples such as J, K, R, S, T, B, E, and N. Linearize the signal and convert to a Modbus RTU digital output.

Resistance to Modbus RTU

The QA-Temp is able to convert the resistance measure across a PT100, Pt500, Pt1000 and a NI100 platinum temperature sensors.

Modbus RTU to 4 to 20 mA

The QA-Temp has a 4 - 20 mA output that can be driven by a change to a modbus register.

Modbus RTU to 0 - 10 Volts

The QA-Temp has a 0 - 10 Volt output and can be driven by the Modbus RTU input.

Temperature Datalogging

The QA-Temp is able to log the temperature from the Thermocouples and the RTD inputs. It is log to a micro USB drive.

Potentiometer Datalogger

The QA-Temp has a Potentiometer input and can log to the micro thumb drive. The QA-Temp is settable with the FACILE QA-TEMP software.

Resistance Datalogging

The QA-Temp can measure resistance from 400 ohm to 4000 ohm and the QA-Temp can log the resistance to a micro USB thumb drive.

Temperature limit Alarm.

The QA-Temp is also equipped with a limit Alarm or trip amplifier. The relay's output is programmable to react to the temperature measured by any temperature sensor such as Thermocouples, RTD's, Potentiometers, or resistance.

What can the QA-TEMP do?

Measure Temperature and convert to Modbus RTU.

The QA-TEMP can be used as a Signal Conditioner and provide a 4-20mA or 0-10V output, which is equal to the linearized input. The QA-TEMP can also provide a high or low-level alarm. With the aid of a micro USB thumb drive, it can also store the temperature from various sensors such as K type thermocouples, J type thermocouples, R type thermocouples, S type thermocouples, T type thermocouples, B type thermocouples, E type thermocouples, and N type thermocouples. Also, RTD's such as Pt100 2 , 3 and 4 Wire, Pt1000 2, 3 and 4 Wire, Pt500 2, 3 and 4 Wire, Ni00 2, 3 and 4 Wire, and resistance 2, 3 and 4 Wire, and Potentiometers.
The QA-TEMP can be a Modbus RTU to analog output unit and drive a 4-20mA output or 0-10V output.

QA-TEMP Specifications

Analog Input Thermocouples J, K, R, S, T, B, E, and N
Analog Input RTD's Pt100, Pt500, Pt1000, Ni100. 2, 3 or 4 wire
Analog Input Potentiometer 1 kohm and 10 kohm
Analog Input Resistance 400 Ohm and 4 kohm 2, 3 or 4 wire
Analog Output Current 4-20 mA, 0-20 mA Voltage 0-10 Volts
Digital Output SPDT Relay Max 250 Vac 5 Amps
Power Supply 10 to 40 Vdc 20 to 28 VAC
Current Consumption Max 2 VA
Temperature Rating Operative 5°F +149°F - 15°C +65°C Storage Temperature - 40°F +185°F - 40°C +85°C.
Humidity (non condensing) 10-90%
Housing Material self-extinguishing
Dimensions 0.69" x 3.93 " x 4.4" 17.5 x 100 x 112 mm
Weight 3 oz 90 g
EMC Immunity: EN 61000-6-2. Emission: EN 61000-6-4.
Configuration DIP Switch Configurable PC Configurable

QA-TEMP Wiring Connections

Power Supply
Positive Terminal 16
Negative Terminal 17
Analog Input
Thermocouple Positive Terminal 4
Thermocouple Negative Terminal 3
2 Wire RTD and Resistance Terminal 3 and 4
3 Wire RTD and Resistance Terminal 3, 6 Com 4
4 Wire RTD and Resistance Terminal 3, 6 Com 4, 5
Potentiometer Terminal 3 and 6 wiper 4
Analog Output
Voltage Positive Terminal 29
Voltage Negative Terminal 31
mA Active Output Positive Terminal 29
mA Active Output Negative Terminal 30
mA Passive Output Positive Terminal 30
mA Passive Output Negative Terminal 31
Relay Output
Normally open Terminal 25
Common Terminal 26
Normally Closed Terminal 27
Modbus Output
Modbus Ground Terminal 32
Modbus Positive Terminal 34
Modbus Negative Terminal 33
QE-BR-ETH485 Wiring Connections
QEED USA
Qeed products are sold and maintained by
Datexel LLC in the USA.
Contact Information
☏ 561 779 5660

[email protected]

🏤 Jupiter, Florida, USA