The 741B does the work of several tools – sourcing, simulating and measuring pressure, temperature, and electrical signals in one rugged, hand-held device. For documentation, the 741B automates calibration procedures and captures your data. And, of course, it helps you meet rigorous standards like ISO 9000, FDA, EPA and OSHA regulations. The 741B is the choice for plants that use standard company worksheets and that make reports in the shop. It has storage capacity for a day's calibration and measurement data. When you're back at the shop recall the data on screen to fill out calibration forms.
Features
The 741B is easy to use with flexible test strategies. And like all Fluke tools, it's rugged, reliable and tough as nails. It's like having several powerful tools in one - so you can work faster than ever:
Measure volts, mA, RTDs, thermocouples, frequency, and ohms to test sensors, transmitters and other instruments
Source/simulate volts, mA, thermocouples , RTDs, frequency, ohms, and pressure to calibrate transmitters
Power transmitters during test using loop supply with simultaneous mA measurement
Measure/source pressure using any of 29 Fluke 700Pxx Pressure Modules
Measure and source simultaneously with one compact, rugged, reliable tool
Create and run automated as-found/as-left procedures to satisfy quality programs or regulations. Record and document results
Use many features like autostep, custom units, user entered values during test, one-point and two-point switch testing, square root DP flow testing, programmable measurement delay etc.
Easy to use
Three year warranty
Bright white display. Read both sourced and measured parameters.
Multi lingual interface
Handling of fast pulsed RTD transmitters and PLCs, with pulses as short as 1msec.
Specifications
Measurement Accuracy
Voltage DC
110.000 mV
0.025%+0.015% *
1.10000 V
0.025%+0.005% *
11.0000 V
0.025%+0.005% *
110.000 V
0.05%+0.005% *
300.00 V
0.05%+0.005% *
Voltage AC
20 to 40 Hz
2% + 10
40 to 500 Hz
0.5% + 5
500 to 1 kHz
2% + 10
1 kHz to 5 kHz
10% + 20
Ranges:
1.1000, 11.000, 110.00, 300V
Current DC
30.000 mA
0.01% + 0.015% *
110.00 mA
0.01% + 0.015% *
Resistance
11.000 Ω
0.05% + 50 mΩ
110.00 Ω
0.05% + 50 mΩ
1.1000 kΩ
0.05% + 500 mΩ
11.000 kΩ
0.1% + 10 Ω
Frequency
1.00 to 109.99 Hz
0.05 Hz
110.0 to 1099.9 Hz
0.5 Hz
1.100 to 10.999 kHz
5 Hz
11.00 to 50.00 kHz
50 Hz
Pressure
Accuracy
from 0.025% of range using any of 29 pressure modules.
(for detailed specifications refer to pressure modules in options and accessories)
Modules available for differential, gage, vacuum, absolute, dual and high pressure.
Note
*
(% of reading + % of full scale)
Source Accuracy
Voltage DC
110.000 mV
0.01%+0.005% *
1.10000 V
0.01%+0.005% *
15.0000 V
0.01%+0.005% *
Current DC
22.000 mA (Source)
0.01%+ 0.015% *
22.000 mA (Simulate)
0.02% + 0.03% *
Resistance
11.000 Ω
0.01% + 20 mΩ
110.00 Ω
0.01% + 40 mΩ
1.1000 kΩ
0.02% + 500 mΩ
11.000 kΩ
0.03% + 5Ω
Frequency
0.00 to 10.99 Hz
0.01 Hz
11.00 to 109.99 Hz
0.1 Hz
110.0 to 1099.9 Hz
0.1 Hz
1100 to 21999 Hz
2 Hz
22.000 to 50.000 kHz
5 Hz
Note
*
(% of reading + % of full scale)
RTDs and Thermocouples
Measure Accuracy:
10 Ω Cu (427):
2 °C
100 Ω Pt (3916):
0.3 °C
100 Ω Pt (3926):
0.3 °C
100 Ω Pt (385):
0.3 °C
200 Ω Pt (385):
0.3 °C
500 Ω Pt (385):
0.3 °C
1000 Ω Pt (385):
0.3 °C
120 Ω Ni (672):
0.3 °C
note:
For 2-and 3-wire measurement, add 0.4 °C
E:
0.3 °C
N:
0.5 °C
J:
0.3 °C
L:
0.3 °C
K:
0.3 °C
T:
0.3 °C
U:
0.3 °C
B:
0.9 °C
R:
1.0 °C
S:
0.9 °C
C:
0.6 °C
note:
Accuracy with external cold junction, for internal junction add 0.2°C
Source Accuracy:
10 Ω Cu (427):
1 °C
100 Ω Pt (3916):
0.1 °C
100 Ω Pt (3926):
0.1 °C
100 Ω Pt (385):
0.1 °C
200 Ω Pt (385):
0.1 °C
500 Ω Pt (385):
0.1 °C
1000 Ω Pt (385):
0.1 °C
120 Ω Ni (672):
0.1 °C
note:
For 2-and 3-wire simulation, add 0.4 °C
E:
0.2 °C
N:
0.3 °C
J:
0.2 °C
L:
0.2 °C
K:
0.3 °C
T:
0.3 °C
U:
0.3 °C
B:
0.8 °C
R:
0.9 °C
S:
0.9 °C
C:
0.6 °C
note:
Accuracy with external cold junction, for internal junction add 0.2 °C
Specifications
Ramp Functions
Source functions:
Voltage, current, resistance, frequency, temperature
Rate:
4 steps/second
Trip detect:
Continuity or voltage (continuity detection not available when sourcing current)
Loop Power Function
Voltage:
Selectable, 24 V or 28 V
Accuracy:
5%
Maximum current:
22 mA, short circuit protected
Maximum input voltage:
30 V DC
Step Functions
Source Functions
Voltage, current, resistance, frequency, temperature
Manual Step
Selectable step, change with arrow buttons
Autostep
Fully programmable for function, start delay, stepvalue, time per step, repeat
Environmental Specifications
Operating Temperature
-10 °C to +50 °C
-20 °C to +50 °C *
Storage Temperature
-20 °C to +60 °C
Dust/water resistance
Meets IP52, IEC 529
Operating Altitude
2800 m
Note
*
Except frequency and AC
Safety Specifications
Agency Approvals
CAN/CSA C22.2 No 1010.1-92, ASNI/ISA S82.01-1994, UL3111, and EN610-1:1993
Mechanical & General Specifications
Size
130 x 236 x 61 mm
Weight
1.4 kg
Batteries
NiCd:
7.2V, 1.7 Ah
Battery Life
~8 hours typical
Battery Replacement
Via snap-shut door without opening calibrator; no tools required
Side port connections
Pressure module connector
Connection for optional battery eliminator
Data storage capacity
1 day of calibration results
90 day specifications
The standard specification intervals for the 741B is 1 and 2 years.
Typical 90 day measurement and source accuracy can be estimated by
dividing the one year "% of reading" or "%of output" specifications by 2.
Floor specifications, expressed as "% of full scale" or
