How to Calibrate a Temperature Transmitter (RTD & TC)
Temperature transmitter calibration for RTD and TC inputs: tools, two-point trim, 5-point check, the 4:1 TUR rule, and the lead-wire and cold-junction traps.
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How to Calibrate a Pressure Transmitter: A Field Procedure
Step-by-step pressure transmitter calibration: the 5-point method, what each point should read in mA, pass/fail scoring, and why re-ranging isn’t calibration.
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Precision Pressure Sensor: Where the 0.1 % FS Line Is Real
Reading precision on a pressure sensor spec sheet: the 0.1 % FS line, BFSL vs TEB, the accuracy ladder, calibration cadence, and the three HMK products that meet a real precision specification.
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Bimetallic, Filled & Gas-Actuated Temperature Gauges Explained
How bimetallic, filled-system, and gas-actuated dial temperature gauges work. Mechanism diagrams, accuracy class, temperature range, and a 3-way selection table.
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DP Transmitter Calibration: 5-Point Procedure & Field Traps
Calibrate a differential pressure transmitter end to end. 5-point Up & Down procedure, HART vs analog, JJG 882-2019 interval, and 5 field traps to avoid.
