Fluke 725Ex Process Calibrator

The 725Ex is an intrinsically safe multifunction process calibrator for use in explosion endangered areas. It is powerful, yet easy to use. Combine the 725EX with any of the eight Fluke 750PEx Pressure Modules (sold separately), and you’ll be able to calibrate almost any process instrument likely to need service in an area where explosive gasses may be present.

The 725EX sources and measures almost all process parameters including mA, volts, temperature (RTDs and thermocouples), frequency, ohms, and pressure, using optional pressure modules. Its split display lets you view input and output values simultaneously to calibrate transmitters. For valve and I/P tests, you can source mA while measuring pressure. The 725Ex has auto-stepping and auto-ramping for remote testing, plus 25% stepping for fast linearity tests.

From the moment you pick it up, the Fluke 725Ex is ready to perform. Its simple controls, without menus, make operation easy. Its memory functions make set up fast. And its rugged design lets it work as hard as you do.

Other useful features:

Pressure switch test function to capture set, reset, and deadband values
Small, streamlined shape, and rugged, reliable design that stands up to field use
Simple, push-button user interface for easy operation
Provides two-channel simultaneous source and measure capability to calibrate transmitters
Powers transmitters during test using loop supply
Stores frequently-used test setups for later use
Measures pressure to 3,000 psi/200 bar using any of the eight intrinsically safe Fluke 700PEx Pressure Modules to calibrate pressure transmitters and I/P devices

Features

Intrinsically safe multifunction process calibrator
Meets I.S. Class I, Division 1 Groups B-D, 171°C compliance standards
Measures volts DC, mA, RTDs, thermocouples, frequency, and ohms
Sources or simulates volts DC, mA, RTDs, thermocouples, frequency and ohms

Product Details

Specifications: Fluke 725Ex Series Process Calibrator
Measurement Accuracy
Voltage DC 30.000 V 0.02% + 2 counts (upper display)
10.000 V 0.02% + 2 counts (lower display)
90.00 mV 0.02% + 2 counts
-10.00 mV to 75.00 mV 0.025% + 1 count (via TC connector)
Current DC 24.000 mA 0.02% + 2 counts
Resistance 0.0 to 400.0 ? 0.1 ? (4-wire), 0.15 ? (2- and 3-wire)
401 to 1500 ? 0.5 ? (4-wire), 1 ? (2- and 3-wire)
1500 to 3200 ? 1 ? (4-wire), 1.5 ? (2- and 3-wire)
Frequency 2.0 to 1000.0 CPM 0.05% + 1 count
1.0 to 1100.0 Hz 0.05% + 1 count
1.00 to 10.00 kHz 0.05% + 1 count
Sensitivity 1 V peak-to-peak-minimum
Pressure Accuracy from 0.025% of range using any of 8 intrinsic safe pressure modules (for detailed specifications refer to pressure modules in options and accessories). Modules available for differential, gauge, vacuum, absolute, dual and high pressure.
Source Accuracy
Voltage DC 100.00 mV 0.02% + 2 counts
10.000 V 0.02% + 2 counts
-10.00 mV to 75.00 mV 0.025% + 1 count (via TC connector)
Current DC 24.000 mA (source) 0.02% + 2 counts
24.000 mA (simulate) 0.02% + 2 counts
Resistance 15.0 to 400.0 ? 0.15 ? (exc. current 0.15 to 0.5 mA), 0.1 ? (exc. current 0.5 to 2 mA)
401 to 1500 ? 0.5 ? (excitation current 0.05 to 0.8 mA)
1500 to 3200 ? 1 ? (excitation current 0.05 to 0.4 mA)
Frequency 2.0 to 1000.0 CPM 0.05%
1.0 to 1100.0 Hz 0.05%
1.00 to 10.00 kHz 0.25%
Waveform 5 V p-p squarewave, -0.1 V offset
RTDs and Thermocouples
Measure accuracy NI-120 0.2°C
PT-100 (385) 0.33°C
PT-100 (393) 0.3°C
PT-100 (JIS) 0.3°C
PT-200 (385) 0.2°C
PT-500 (385) 0.3°C
PT-1000 (385) 0.2°C
Resolution 0.1°C
J 0.7°C
K 0.8°C
T 0.8°C
E 0.7°C
R 1.8°C
S 1.5°C
B 1.4°C
L 0.7°C
U 0.75°C
N 0.9°C
Resolution J, K, T, E, L, N, U: 0.1°C, 0.1°F B, R, S: 1°C, 1°F
XK 0.6°C
BP 1.2°C
Source accuracy NI-120 0.2°C
PT-100 (385) 0.33°C
PT-100 (393) 0.3°C
PT-100 (JIS) 0.3°C
PT-200 (385) 0.2°C
PT-500 (385) 0.3°C
PT-1000 (385) 0.2°C
Resolution 0.1°C
Accuracy stated for 4-wire measurement.
J 0.7°C
K 0.8°C
T 0.8°C
E 0.7°C
R 1.4°C
S 1.5°C
B 1.4°C
L 0.7°C
U 0.75°C
N 0.9°C
Resolution J, K, T, E, L, N, U: 0.1°C, B, R, S: 1°C
XK 0.6°C
BP 1.2°C
Specifications
Ramp functions Source functions Voltage, current, resistance, frequency, temperature
Ramps Slow ramp, Fast ramp, 25% step-ramp
Loop power function Voltage 12 V
Accuracy 10%
Maximum current 22 mA, short circuit protected
Step functions Source functions Voltage, current, resistance, frequency, temperature
Steps 25% of range, 100% of range
Safety specifications
Agency approvals I.S. Class I, Division 1 Groups B-D
Mechanical and General Specifications
Size 130 x 236 x 61 mm (5.188 x 9.291 x 2.402 in)
Weight 0.85 kg (1.874 lbs.)
Batteries 4 AA alkaline batteries
Warranty Three year
Battery replacement Separate battery compartment, accessible without breaking calibration seal
Side port connections Pressure module connector

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