Fluke 725Ex Intrinsically Safe Multifunction Process Calibrator

The 725Ex is an intrinsically safe multifunction process calibrator for usage in explosion endangered areas. These calibration tools source and measure almost all process parameters.

Measure and source mA, volts, temperature (RTDs and thermocouples), frequency, ohms, and pressure, using optional pressure modules. The 725Ex split display lets you view input and output values simultaneously. 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.

Description

Use the measure and source functions to test and calibrate almost any process parameter. The Fluke 725Ex Intrinsically Safe Calibrator is a powerful, multifunction calibration solution that offers:

  • ATEX II 1 G Ex ia IIB 171°C KEMA 04ATEX 1303X
  • I.S. Class I, Division 1 Groups B-D, 171°C compliance
  • Measure Volts DC, mA, RTDs, thermocouples, frequency and ohms
  • Source or simulate Volts dc, mA, RTDs, thermocouples, frequency and ohms
  • Two channel simultaneous source and measure capability for calibration of transmitters
  • Power transmitters with internal loop supply
  • Store frequently-used test setups for later use
  • Pressure measurement to 3,000 psi/200 bar using any of the 8 intrinsically safe Fluke 700PEx Pressure Modules, calibrate pressure transmitters and I/P devices
  • Pressure switch test function to capture set, reset and deadband values
  • Compact size and weight
  • Simple, push-button user interface
  • Rugged and reliable, for field use

The optional 700PEx Pressure Modules are ATEX-certified Ex II 1 G Ex ia IIC T4. They are also certified by CSA I.S Class 1, Division 1 areas Group A-D per NEC-500.

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 Ω 0.1 Ω (4-wire), 0.15 Ω (2- and 3-wire)
401 to 1500 Ω 0.5 Ω (4-wire), 1 Ω (2- and 3-wire)
1500 to 3200 Ω 1 Ω (4-wire), 1.5 Ω (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 Ω 0.15 Ω (exc. current 0.15 to 0.5 mA), 0.1 Ω (exc. current 0.5 to 2 mA)
401 to 1500 Ω 0.5 Ω (excitation current 0.05 to 0.8 mA)
1500 to 3200 Ω 1 Ω (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 ATEX II 1 G Ex ia IIB 171°C
I.S. Class I, Division 1 Groups
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