Place of Origin: | England |
Brand Name: | MTL |
Model Number: | MTL5575 |
Minimum Order Quantity: | 1pc |
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Price: | according to the purchase quantity |
Packaging Details: | original MTL packing |
Delivery Time: | in stock |
Payment Terms: | T/T payment |
Supply Ability: | 100pcs |
MTL5575 temperature converter THC or RTD input + Alarm
MTL5575 converts a low-level dc signal from a temperature sensor mounted in a hazardous area into a 4/20mA current for driving a safe-area load. Software selectable features include linearisation, ranging, monitoring, testing and tagging for all thermocouple types and 2-, 3- or 4-wire RTDs. (For thermocouple applications the HAZ-CJC plug on terminals 1–3 includes an integral CJC sensor). Configuration is carried out using a personal computer. A single alarm output is provided and may be configured for process alarm or to provide notice of early thermocouple failure.
SPECIFICATION
See also common specification
Number of channels
One
Signal source
THC types J, K, T, E, R, S, B or N to BS 60584 and XK
mV input
RTDs 2/3/4-wire platinum to BS 60751
Pt 100, Pt 500, Pt 1000
Cu-50 & Cu-53
Ni 100/500/1000 DIN 43760
Location of signal source
Zone 0, IIC, T4-6 hazardous area
Division 1, Group A, hazardous location
Input signal range
–75 to +75mV, or 0 to 400Ω (0 to 1000Ω Pt & Ni sensors)
Input signal span
3 to 150mV, or 10 to 400Ω (10 to 1000Ω Pt & Ni sensors)
RTD excitation current
200µA nominal
Cold junction compensation
Automatic or selectable
Cold junction compensation error
≤ 1.0°C
Common mode rejection
120dB for 240V at 50Hz or 60Hz (500ms response)
Series mode rejection
40dB for 50Hz or 60Hz
Calibration accuracy (at 20°c)
(includes hysteresis, non-linearity and repeatability)
Inputs: (500ms response)
mV/THC: ± 15µV or ± 0.05% of input value (whichever is greater)
RTD: ± 80mΩ
Output: ± 11µA
Temperature drift (typical)
Inputs:
mV/THC: ± 0.003% of input value/°C
RTD: ± 7mΩ/°C
Output: ± 0.6µA/°C
Example of calibration accuracy and temperature drift
(RTD input - 500ms response)
Span: 250Ω
Accuracy: ± (0.08/250 + 11/16000) x 100%
= 0.1% of span
Temperature drift: ± (0.007/250 x 16000 + 0.6) µA/°C
= ±1.0µA/°C
Safety drive on sensor failure
Upscale, downscale, or off
Contact Person: Ms. Steven
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