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Head Mounting Temperature Transmitters

Isolated Head Mounting Universal Input 4~20mA Transmitter

Product Code: TXHUI

(1-9)
£156.00
(£130.00 exc. VAT)
(10-24)
£148.80
(£124.00 exc. VAT)
(25+)
£142.80
(£119.00 exc. VAT)
Please enter your configuration requirements below (see table for options). Enter "Not Required" if configuration is not required. Examples: Thermocouple Type K, 0 to 180 and Pt100 3-wire, -50 to 300

Configuration requirements:  

Quantity:
The TXHUI range of low-cost, loop powered, isolated, microprocessor based linearised transmitters have, as standard, a universal input that accepts RTD (Pt100 or Pt1000) and Thermocouple (Types K, J, T, N, E, R, S, B) inputs.

We can offer the following pre-configuration options (note: temperature range must fall within minimum/maximum range for an input)

Input TypeMinimum TemperatureMaximum Temperature
Thermocouple Type K-200°C+1372°C
Thermocouple Type J-100°C+1200°C
Thermocouple Type T-200°C+400°C
Thermocouple Type N-180°C+1300°C
Thermocouple Type E-100°C+1000°C
Thermocouple Type R-50°C+1760°C
Thermocouple Type S-50°C+1760°C
Thermocouple Type B0°C+1820°C
Pt100 3-wire-200°C+850°C
Pt1000 3-wire-200°C+850°C

The transmitters can be supplied configured to suit your application requirements (simply enter your configuration requirements above) or can be easily configured yourself using the TX-USB Configuration Kit which is available separately. Simply install the software (which is available for free download from our website), connect the USB configuration module and plug the lead into the transmitter. The software will then provide the necessary prompts.

The TXHUI is a similar specification to the TXHU transmitter, but with the following additional features:

• Zero span pot
• LED status indicator
• Improved Thermocouple input accuracy (Types K, J, T, N, E: < ±1°C; Types R, S, B: < ±2°C)
• Isolation test voltages between input/output
• 3750V AC for 1 minute
• Operating temperature: -20°C to +85°C

Technical Details (Common)
Output4~20mA, 2-wire (loop powered)
Power Supply10-36V DC
Output Load Resistance700Ω at 24V DC (50Ω/V above 10V DC)
Maximum Output CurrrentLimited to < 28mA (emission & immunity)
Accuracy< ±0.03% FSO typical
Ambient Drift< ±0.003%/°C FSO typical
Noise Immunity125dB CMRR average (2.0kV DC limit)
R.F. Immunity<1% effect FSO typical
Reponse Time400ms typical (10-90% 300ms typical)
Sensor Break Output DriveFunction high upscale/low downscale
USB Programmable Zero0 to ±99% of the span
Operating Temperature-20°C to +85°C
Storage Temperature-20°C to +100°C
Operating Humidity5-85% RH max (non-condensing)
Dimensions44mm (W) x 44mm (H) x 23mm (D)
EMC ComplianceEmissions (EN 61326)
Immunity (EN 61326)
Safety (EN 61010-1)

 

RTD Input Specifications
InputPt100 or Pt1000 DIN 3-wire type
(2-wire can be used with offset calibration)
Sensor Current0.15mA nominal
Lead Wire ResistancePt100: 10Ω/wire max.
Pt1000: 5Ω/wire max.
0.02% FSO offset error per Ω of lead resistance
Accuracy≤ 0.3°C
USB Programmable Span-200°C to +850°C
Linearity (Pt100)0.02% FSO for span inputs ≤ +200°C
0.1% FSO for span inputs ≤ +850°C
Linearity (Pt1000)0.02% FSO for span inputs ≤ +200°C
0.2% FSO for span inputs ≤ +520°C

 

Thermocouple Input Specifications
Thermocouple TypesK, J, T, N, E, R, S, B
Input Impedance1MΩ min
Thermocouple Lead Resistance100Ω max
Cold Junction Compensation-20°C to +90°C
AccuracyTypes K, J, T, N, E: < ±1°C
Types R, S, B: < ±2°C
Temperature DriftTypes K, J, T, N, E: < ±0.05°C
Types R, S, B: < ±0.2°C
CJC Error< ±1°C


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