7000 RTD Temperature Calibrator

Danh mục: Portable Process & Pressure Instruments

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Mô tả

The 7000 is a portable process control instrument that combines a precision digital thermometer (using RTD probes) with an RTD/ohms calibrator.

Compact and easy to use, it solves the problem of making high accuracy temperature measurements without using bulky mains powered instrumentation. Powered from internal long life rechargeable batteries or an external mains adaptor, it is equally valuable in laboratory, workshop or the field. It can also be used as an external temperature reference for dry block and other precision temperature baths.

Modes of Operation

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.

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.

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.

Thông số kỹ thuật


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.


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.


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


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.

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	Carry case, mains charger, pair of test leads, and user manual
Optional Extras	Mains adaptors (230 or 110V AC) and calibration certificates traceable to NPL and UKAS
Country of Origin	UK

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7000 RTD Temperature Calibrator