|
Measurement Accuracy |
|
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% * |
|
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 |
|
30.000 mA |
0.01% + 0.015% * |
|
110.00 mA |
0.01% + 0.015% * |
|
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 |
|
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 |
|
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, gauge, vacuum, absolute, dual and high pressure |
|
Note |
* (% of reading + % of full scale) |
|
Source Accuracy |
|
110.000 mV |
0.01%+0.005% * |
|
1.10000 V |
0.01%+0.005% * |
|
15.0000 V |
0.01%+0.005% * |
|
22.000 mA (Source) |
0.01%+ 0.015% * |
|
22.000 mA (Simulate) |
0.02% + 0.03% * |
11.000 Ω
110.00 Ω
1.1000 kΩ
11.000 kΩ |
0.01% + 20 mΩ
.01% + 40 mΩ
00.02% + 500 mΩ
0.03% + 5Ω |
|
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 |
10 Ω Cu (427):
100 Ω Pt (3916):
100 Ω Pt (3926):
100 Ω Pt (385):
200 Ω Pt (385):
500 Ω Pt (385):
1000 Ω Pt (385):
120 Ω Ni (672):
note:
E:
N:
J:
L:
K:
T:
U:
B:
R:
S:
C:
note: |
2 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
For 2-and 3-wire measurement, add 0.4 °C
0.3 °C
0.5 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.9 °C
1.0 °C
0.9 °C
0.6 °C
Accuracy with external cold junction, for internal junction add 0.2°C |
10 Ω Cu (427):
100 Ω Pt (3916):
100 Ω Pt (3926):
100 Ω Pt (385):
200 Ω Pt (385):
500 Ω Pt (385):
1000 Ω Pt (385):
120 Ω Ni (672):
note:
E:
N:
J:
L:
K:
T:
U:
B:
R:
S:
C:
note: |
1 °C
0.1 °C
0.1 °C
0.1 °C
0.1 °C
0.1 °C
0.1 °C
0.1 °C
For 2-and 3-wire simulation, add 0.4 °C
0.2 °C
0.3 °C
0.2 °C
0.2 °C
0.3 °C
0.3 °C
0.3 °C
0.3 °C
0.8 °C
0.9 °C
0.9 °C
0.6 °C
Accuracy with external cold junction, for internal junction add 0.2 °C |
|
Specifications |
|
Measure functions: |
Voltage, current, resistance, frequency, temperature, pressure |
|
Reading rate: |
1, 2, 5, 10, 20, 30, or 60 readings/minute |
|
Maximum record length: |
8000 readings (7980 for 30 or 60 readings/minute) |
|
Source functions: |
Voltage, current, resistance, frequency, temperature |
|
Rate: |
4 steps/second |
|
Trip detect: |
Continuity or voltage (continuity detection not available when sourcing current) |
|
Voltage: |
Selectable, 24 V or 28 V |
|
Accuracy: |
5% |
|
Maximum current: |
22 mA, short circuit protected |
|
Maximum input voltage: |
30 V DC |
|
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 (5.1“ x 9.3” x 2.4”) |
|
Weight |
1.4 kg (3 lbs., 1oz.) |
|
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
RS-232 connector for PC interface cable
Connection for optional battery eliminator |
|
Data storage capacity |
1 week 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 "counts" or "ohms" remain constant. |