7077 Process Calibrator Module

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Mô tả

The 7077 is a high performance process calibrator module that combines source and measurement functions for thermocouples, PT100s, μV, mV, and mA. As a multifunction module the 7077 combines accuracy with simple operation, making it ideal for process plant applications.

Thermocouple Measurement and Simulation
Measure and simulate the temperature and mV characteristics of J, K, T, R, S, B, N and E thermocouples.

Cold Junction Compensation
The unit can be operated with or without internal cold junction compensation.

PT100 Measurement and Simulation
Based on 0.3850 alpha probe standard. Range is -200°C to 700°C.

Measurement and Source (μV, mV, and mA)
Measurement ranges are 0 to +/-30mV and 0 to +/-60mA. Source ranges are 0 to +/-80mV and 0 to +80mA.

Temperature Units Selection
The display can be easily changed from °C to °F. The equivalent μV (thermocouples) and ohms (PT100) can also be shown.

24V Process Loop Drive Mode
A process loop can be driven at 24V and up to 60mA by selecting the ‘Milliamp Source’ mode and setting it at 60mA (or a lower level if required).

Inching (Incrementing/Decrementing)
The 7077 has a general-purpose inching function. This adjusts the output in fixed increments of temperature (thermocouples only) or voltage or current. The set-up menu gives a the user a choice of three levels of increment i.e. 0.1, 1 or 10 for °C/°F, or 1, 10, or 100 μV/μA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output. This is especially useful for calibrating thermostat controllers that have tight specification on hysteresis.

Memory Recall and Step/Auto-Step Functions
Up to 10 values can be stored in the unit’s non- volatile memory and they can be recalled at any time. The user can also manually step through them in sequence using the step key. Continuous stepping (auto-step) is also available at any user selectable rate between 1 and 10 seconds/step.

Thông số kỹ thuật


Thermocouple Type	Temperature Range (°C)	Accuracy (°C)
J	-200 to 580	0.7
K	-200 to -150 -150 to 750	2.5 0.5
T	-200 to 0 0 to 400	1.5 0.4
R	50 to 400 400 to 1750	3.0 1.5
S	-50 to 100 100 to 1750	3.0 1.5
B	110 to 1000 1000 to 1800	3.5 1.5
N	-100 to 890	0.6
E	-50 to 400	0.4

Resolution	0.1°C or 0.1°F


Thermocouple Type	Temp Range °C	Accuracy °C
J	-210 to 150 150 to 1200	0.15 0.3
K	-270 to 190 190 to 1250	0.5 0.4
T	-200 to 150 150 to 400	0.4 0.5
R	-50 to 800 800 to 1750	0.8 2.0
S	-50 to 850 850 to 1750	0.9 2.0
B	100 to 1200 1200 to 1800	2.0 3.0
N	-270 to 260 260 to 1300	0.5 1.0
E	-50 to 1000	0.3

Resolution	0.1°C or 0.1°F

Note: An additional correction representing the equivalent 1μV should be allowed for stray thermal emf effects (Temperature measure & simulation).


14 set temperature points (°C)	Accuracy
-100, -50, -20, 0, 20, 50, 100, 200, 300, 400, 500, 600, 700, 800	0.1% of resistance value (typically 0.5 °C)


Range	Accuracy	Resolution
200 to 700 °C, 2 wire.	0.2% of resistance value (typically 0.7 °C)	0.2°C (or 0.2°F)


Range	Resolution	Accuracy	Input Resistance
0 to +/- 30mV	10μV	0.05% of full scale ±1 digit	100kΩ


Range	Resolution	Accuracy	Output Resistance
0 to 8mV	0.5μV	+/- 4μV	10Ω
8 to 80mV	5μV	0.02% of full scale	10Ω


Range	Resolution	Accuracy	Input Resistance
0 to 60mA	20μA	0.05% of full scale ±1 digit	0.5Ω


Range	Resolution	Accuracy
0 to 8mA	0.5μA	+/-10μA
8 to 80mA	5μA	0.02% of full scale


Inching	Three levels of increment, 0.1, 1 or 10 for °C/°F, and 1, 10, or 100 μV/ μA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output.
24V Process Loop Drive	A process loop can be driven at 24V and up to 60mA by selecting the ‘Milliamp Source’ mode and setting it at 60mA (or a lower level if required)
Memory recall & step	10 memory locations for non-volatile storage of values. Manual & AutoStep, rate adjustable from 1 to 10 sec/step

Cold Junction Compensation	Accuracy 0.2°C. Resolution 0.1°C.
Operating Temperature	-10 to 40°C (15 to 105°F)
Connections	Industry standard 4mm screw terminals
Module Width	295mm (primary or secondary console fitting)
Optional Extras	Calibration certificates traceable NPL and UKAS

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7077 Process Calibrator Module