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Fluke 9144-X-P Process Field Metrology Well
  • Fluke 9144-X-P Process Field Metrology Well
  • Fluke 9144-X-P Process Field Metrology Well

Fluke 9144-X-P Process Field Metrology Well

Fluke Calibration authorised distributor.

Whether you need to calibrate 4-20 mA transmitters or a simple thermostatic switch, a Field Metrology Well is the right tool for the job.

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About the Fluke 9144-X-P

NB. 'X' in the model number to be replaced with A, B, C, D, E, or F as appropriate for the desired insert. See the inserts illustration and listing on the datasheet.

The Fluke 9144-X-P Field Metrology Well extends high performance to the industrial process environment by maximising portability, speed, and functionality with little compromise to metrology performance. The “Process” version (“9144-X–P”) combines the heat source with a built-in readout eliminating the need for the technician to take two instruments to the field.


Temperature Range: 50 °C to 660 °C (122 °F to 1220 °F).
Process Electronics version.
Lightweight, portable, and fast.
Cool to -25°C in 15 minutes and heat to 350°C in 15 minutes.
Built-in two-channel readout for PRT, RTD, thermocouple, 4-20 mA current.
True reference thermometry with accuracy to ±0.01°C.
On-board automation and documentation.

Fluke Metrology Wells Introduction

Fluke 9144-X-P Specifications
Base Unit Specifications
Temperature range at 23°C50°C to 660°C (122°F to 1220°F).
Display accuracy±0.35°C at 50°C
±0.35°C at 420°C
±0.5°C at 660°C.
Stability±0.03°C at 50°C
±0.04°C at 420°C
±0.05°C at 660°C.
Axial uniformity at 40 mm (1.6 in)±0.05°C at 50°C
±0.35°C at 420°C
±0.5°C at 660°C.
Radial uniformity±0.02°C at 50°C
±0.05°C at 420°C
±0.10°C at 660°C.
Loading effect (with a 6.35 mm reference probe and three 6.35 mm probes)±0.015°C at 50°C
±0.025°C at 420°C
±0.035°C at 660°C.
Operating conditions0°C to 50°C, 0% to 90% RH (non-condensing).
Environmental conditions (for all specifications except temperature range)13°C to 33°C.
Immersion (well) depth150 mm (5.9 in).
Insert OD24.4 mm (0.96 in).
Heating time15 min: 50°C to 660°C.
Cooling time25 min: 660°C to 100°C
35 min: 660°C to 50°C.
DisplayLCD, °C or °F user-selectable.
Size (H x W x D)290 x 185 x 295 mm (11.4 x 7.3 x 11.6 in).
Weight7.7 kg (17 lb).
Power requirements100 V to 115 V (±10%), 50/60 Hz, 1400 W 230 V (±10%), 50/60 Hz, 1800 W.
Computer interfaceRS-232 and 9930 Interface-it control software included.
-P Specifications
Built-in reference thermometer readout accuracy (4-wire reference probe)1±0.010°C at -25°C
±0.015°C at 0°C
±0.020°C at 50°C
±0.025°C at 150°C
±0.030°C at 200°C
±0.040°C at 350°C
±0.050°C at 420°C
±0.070°C at 660°C
Reference resistance range0 ohms to 400 ohms.
Reference resistance accuracy20 ohms to 42 ohms: ±0.0025 ohms 42 ohms to 400 ohms: ±60 ppm of reading.
Reference characterizationsITS-90, CVD, IEC-751, Resistance.
Reference measurement capability4-wire.
Reference probe connection6-pin Din with Infocon Technology.
Built-in RTD thermometer readout accuracyNI-120: ±0.015°C at 0°C
PT-100 (385): ±0.02°C at 0°C
PT-100 (3926): ±0.02°C at 0°C
PT-100 (JIS): ±0.02°C at 0°C.
RTD resistance range0 ohms to 400 ohms.
RTD resistance accuracy225 ohms to 400 ohms: ±80 ppm of reading
0 ohms to 25 ohms: ±0.002 ohms.
RTD characterisationsPT-100 (385),(JIS),(3926), NI-120, Resistance.
RTD measurement capability4-wire RTD (2-,3-wire RTD w/ Jumpers only).
RTD connection4 terminal input.
Built-in TC thermometer readout accuracyType J: ±0.7°C at 660°C
Type K: ±0.8°C at 660°C
Type T: ±0.8°C at 400°C
Type E: ±0.7°C at 660°C
Type R: ±1.4°C at 660°C
Type S: ±1.5°C at 660°C
Type M: ±1.4°C at 660°C
Type L: ±0.7°C at 660°C
Type U: ±0.75°C at 600°C
Type N: ±0.9°C at 660°C
Type C: ±1.1°C at 660°C
TC millivolt range–10 mV to 75 mV.
Voltage accuracy0.025% of reading + 0.01 mV.
Internal cold junction compensation accuracy±0.35°C (ambient of 13°C to 33°C).
TC connectionSmall connectors.
Built-in mA readout accuracy0.02% of reading + 2 mV.
mA rangeCal 4-22 mA, Spec 4-24 mA.
mA connection2 terminal input.
Loop power function24 V DC loop power.
Built-in electronics temperature Coefficient (0°C to 13°C, 33°C to 50°C)±0.005% of range per°C.
1. The temperature range may be limited by the reference probe connected to the readout. The Built-In Reference Thermometer Readout Accuracy does not include the sensor probe accuracy. It does not include the probe uncertainty or probe characterisation errors.
2. Measurement accuracy specifications apply within the operating range and assume 4-wires for PRTs. With 3-wire RTDs add 0.05 ohms to the measurement accuracy plus the maximum possible difference between the resistances of the lead wires.


Fluke 914X Datasheet

PDF Specifications of the Fluke 914X Series Field Metrology Wells.

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Fluke 9144-X-P Process Field Metrology Well
9144-INSA Insert “A” 9144, Imperial Misc Holes. 3055242
9144-INSB Insert “B” 9144, Imperial Comparison Holes. 3055256
9144-INSC Insert “C” 9144, 0.25-inch Holes. 3055263
9144-INSD Insert “D” 9144, Metric Comparison Holes. 3055274
9144-INSE Insert “E” 9144, Metric Misc Holes w/0.25-inch Hole. 3055288
9144-INSF Insert “F” 9144, Metric Comparison Misc Holes w/0.25-inch Hole. 3055295
9144-INSZ Insert “Z” 9144, Blank. 3055312
9142-CASE Carrying Case for 9142, 9143 and 9144. 1658651

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