| 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% * | |
| 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 | |
| 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% * | |
| 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 | |
| 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 | |
| 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. |
| Modules available for differential, gauge, vacuum, absolute, dual and high pressure. |
| (for detailed specifications refer to pressure modules in options and accessories) | |
| Accuracy |
from 0.025% of range using any of 29 pressure modules. |
| |
Modules available for differential, gauge, vacuum, absolute, dual and high pressure. |
| |
(for detailed specifications refer to pressure modules in options and accessories) |
| Note |
| * | (% of reading + % of full scale) |
|
| * |
(% 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% * | |
| 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% * | |
| 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 | |
| 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 | |
| 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) |
|
| * |
(% 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 |
| BP |
1.2 ºC |
| XK |
0.4 ºC |
| 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 | | BP | 0.5 ºC | | XK | 0.4 ºC | | note | Accuracy with external cold junction, for internal junction add 0.2°C | |
| 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 |
| BP |
0.5 ºC |
| XK |
0.4 ºC |
| note |
Accuracy with external cold junction, for internal junction add 0.2°C |
| Technical Data |
| Data Log Functions |
| 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) | |
| 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) |
| 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) | |
| 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 | |
| Voltage |
Selectable, 24 V or 28 V |
| Accuracy |
0.05 |
| 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 | |
| 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 * | |
| |
-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 |
|
| * |
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 |
|
| |
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") |
|
| |
130 x 236 x 61 mm (5.1 x 9.3" x 2.4") |
| Weight |
|
| |
1.4 kg (3 lbs., 1oz.) |
| Batteries |
|
| NiMH |
7.2V, 3.5 Ah |
| Battery life |
|
| |
>10 hours typical |
| Battery Replacement |
| Via snap-shut door without opening calibrator; no tools required |
|
| |
Via snap-shut door without opening calibrator; no tools required |
| Side port connections |
| Pressure module connector |
| RS-232 connector for PC interface cable and for HART communication cable |
| Connection for optional battery eliminator | |
| |
Pressure module connector |
| |
RS-232 connector for PC interface cable and for HART communication cable |
| |
Connection for optional battery eliminator |
| Data storage capacity |
| 1 week of calibration results |
|
| |
1 week of calibration results |
| 90 day specifications |
| The standard specification interval for the 744 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. | |
| |
The standard specification interval for the 744 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. |