Modes of Operation - Detailed Specifications
| Monitor Mode (4 wire) |
|
Typical Functions
|
1. Check RTD probes by measuring their resistance at known temperatures.
2. Measure resistance values.
3. Indicate temperature when connected to an RTD probe.
4. Can be pre-programmed with a particular RTD’s characteristics to allow very high accuracy.
|
| Excitation current |
1mA on all ranges |
| Resistance range |
0.01Ω to 2.6kΩ |
| Resolution |
0.01Ω |
| Accuracy |
See specifications below |
| Auto re-calibration |
Every 0.6 secs |
| Temperature stability |
Better than 0.0015% per °C |
| Max/Min values |
Logged automatically |
The 7000 may be used with a calibrated and certified probe to produce a highly accurate thermometer.
The performance can be further enhanced by programming the actual characteristic of the probe into the unit.
| Simulator Mode (4 wire) |
|
Typical Functions
|
1. Output resistance of precise known value.
2. Simulate an RTD value from an RTD table chart.
3. Simulate an RTD value using the internal table.
|
| Excitation current |
0.6mA to 1mA |
| Resistance range |
0.01Ω to 2.6kΩ |
| Resolution |
0.01Ω |
| Accuracy |
See specifications below |
| Auto re-calibration |
Every 0.6 secs. |
| Temperature stability |
Better than 0.0015% per °C |
Enhanced performance may be achieved by programming the unit to simulate the characteristic of a particular probe.
Five fixed step points (0, 25, 50, 75, 100%) are available between a user set minimum (0%) and a maximum (100%).
Programmable ramp function is also available.
Technical Specifications
| Standard RTD types (Non standard RTD types user programmable) |
| Element |
Alpha Coefficient |
Temp Range °C |
Accuracy °C |
Temp Range °F |
Accuracy °F |
|
Pt100 DIN
|
0.003850
|
-200 to 250
250 to 849
|
0.05
0.07
|
-330 to 480
480 to 1560
|
0.10
0.14
|
|
Pt100 US
|
0.003916
|
-100 to 250
250 to 457
|
0.05
0.07
|
-150 to 480
480 to 850
|
0.10
0.14
|
| Pt200 DIN |
0.003850 |
-200 to 300 |
0.05 |
-330 to 570 |
0.10 |
|
Pt500 DIN
|
0.003850
|
-200 to 250
250 to 630
|
0.05
0.07
|
-330 to 480
480 to 1160
|
0.10
0.14
|
|
Pt1000 DIN
|
0.003850
|
-200 to 250
250 to 630
|
0.05
0.07
|
-330 to 480
480 to 1160
|
0.10
0.14
|
| Ni 120 |
0.006180 |
-100 to 200 |
0.05 |
-150 to 390 |
0.10 |
| Ni 1000 |
0.006180 |
-100 to 200 |
0.05 |
-150 to 390 |
0.10 |
| Resistance Accuracy |
| Range (Ohms) |
Monitor |
Generator |
| 20 to 400 |
0.03Ω |
0.03Ω |
| 400 to 800 |
0.10Ω |
0.10Ω |
| 800 to 1200 |
0.20Ω |
0.20Ω |
| 1200 to 2600 |
0.50Ω |
0.50Ω* |
* plus additional error of 0.05% of output value. If excitation current is less than 1mA.
General Specifications
| Operating temp range |
-10 to 50°C |
|
Battery power
|
NiMH rechargeable
|
|
Mains power
|
External mains adaptor (optional)
|
| Battery life |
> 24hrs typical use |
| Case |
Impact resistant ABS |
| Dimensions |
H165 x W90 x D45mm |
| Weight |
0.42kg |
| Supplied With |
Mallette de Transport, mains charger, pair of test leads, and Manuel |
| Optional Extras |
Mains adaptors (230 or 110V AC) and calibration certificates traceable to NPL and UKAS |
| Country of Origin |
UK |
