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

Fluke 9144-X Field Metrology Well

Fluke Calibration authorised distributor.

Includes: Fluke 9144, Well Insert, dependent upon model ordered, Power Cord, 9930 Interface IT Software, NIST Traceable Certificate of Calibration, User Manual.

£3,990.00 Save 5%
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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 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.

All Field Metrology Wells allow for two types of automated thermostatic switch test procedures—auto or manual setup. Auto setup requires the entry of only the nominal switch temperature. With this entry, it will run a 3-cycle calibration procedure and provide final results for the dead band temperature via the display. If you need to customise the ramp rate or run additional cycles, the manual setup allows you to program and run the procedure exactly how you would like. Both methods are fast and easy and make testing temperature switches


Temperature Range: 50 °C to 660 °C (122 °F to 1220 °F).
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 Specifications
Base Unit Specifications
Temperature range at 23°C 50°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.
Hysteresis 0.1.
Operating conditions 0°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) depth 150 mm (5.9 in).
Insert OD 24.4 mm (0.96 in).
Heating time 15 min: 50°C to 660°C.
Cooling time 25 min: 660°C to 100°C
35 min: 660°C to 50°C.
Resolution 0.01°.
Display LCD, °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).
Weight 7.7 kg (17 lb).
Power requirements 100 V to 115 V (±10%), 50/60 Hz, 1400 W 230 V (±10%), 50/60 Hz, 1800 W.
Computer interface RS-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 range 0 ohms to 400 ohms.
Reference resistance accuracy2 0 ohms to 42 ohms: ±0.0025 ohms 42 ohms to 400 ohms: ±60 ppm of reading.
Reference characterizations  ITS-90, CVD, IEC-751, Resistance.
Reference measurement capability 4-wire.
Reference probe connection 6-pin Din with Infocon Technology.
Built-in RTD thermometer readout accuracy NI-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 range 0 ohms to 400 ohms.
RTD resistance accuracy2 25 ohms to 400 ohms: ±80 ppm of reading
0 ohms to 25 ohms: ±0.002 ohms.
RTD characterisations PT-100 (385),(JIS),(3926), NI-120, Resistance.
RTD measurement capability 4-wire RTD (2-,3-wire RTD w/ Jumpers only).
RTD connection 4 terminal input.
Built-in TC thermometer readout accuracy Type 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 accuracy 0.025% of reading + 0.01 mV.
Internal cold junction compensation accuracy ±0.35°C (ambient of 13°C to 33°C).
TC connection Small connectors.
Built-in mA readout accuracy 0.02% of reading + 2 mV.
mA range Cal 4-22 mA, Spec 4-24 mA.
mA connection 2 terminal input.
Loop power function 24 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 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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