![Fluke 712B [11/50] Dc ma measurement](/img/pdf.png)
Fluke 712B [11/50] Dc ma measurement
![Fluke 712B [11/50] Dc ma measurement](/views2/1437103/page11/bgb.png)
RTD/Thermocouple Calibrator
712B Specifications
3
712B Specifications
Specifications are based on a one year calibration cycle and apply from +18 °C
to +28 °C unless stated otherwise. All specifications assume a 5 minute warmup
period.
DC mA Measurement
Range Resolution
Accuracy (% of Reading + Floor)
1 Year 2 Year
0-24 mA 0.001 mA
0.01 % + 2 μA 0.02 % + 4 μA
• Notes:
• Temperature coefficient: ±(0.002 % of reading + 0.002 % of range) /°C ( <18 °C or >28 °C)
Ohms Measurement
Range Resolution
Accuracy (% of Reading + Floor)
1 Year 2 Year
0.00 Ω to 400.00 Ω 0.01 Ω 0.015 % + 0.05 Ω 0.03 %+ 0.08 Ω
400.0 Ω to 4000.0 Ω 0.1 Ω 0.015 % + 0.5 Ω 0.03 %+ 0.8 Ω
• Notes:
• Reading accuracy is based on 4-wire input. For 3-wire ohm measurements, assuming all three leads are matched, add
0.05 Ω (0.00 Ω~400.00 Ω), 0.2 Ω (400.0 Ω~4000.0 Ω) to the specifications.
• Temperature Coefficient: ± (0.002 % of reading + 0.002 % of range) /°C (<18 °C or >28 °C)
Ohms Source
Ohms Range
Excitation Current from
Measurement Device
Accuracy
(% of Output + Floor)
1 Year 2 Year
1.00 Ω to 400.00 Ω
0.1 mA to 0.5 mA
0.015 % + 0.1 Ω 0.03 % + 0.2 Ω
0.5 mA to 3 mA
0.015 % + 0.05 Ω 0.03 % + 0.08 Ω
400.0 Ω to 1500.0 Ω
0.05 mA to 0.8 mA
0.015 % + 0.5 Ω 0.03 % + 0.8 Ω
1500.0 Ω to 4000.0 Ω
0.05 mA to 0.4 mA
0.015 % + 0.5 Ω 0.03 % + 0.8 Ω
Resolution
1.00 Ω to 400.00 Ω 0.01 Ω
400.0 Ω to 4000.0 Ω 0.1 Ω
• Notes:
• Supports pulsed transmitters and PLCs with pulse times as short as 5 ms.
• Temperature coefficient: ± (0.002 % of output + 0.002 % of range) /°C ( <18 °C or >28 °C)
Содержание
- B 714b 1
- B 714b calibration manual 1
- Limited warranty and limitation of liability 2
- Warranty 2
- Table of contents 3
- List of tables 5
- List of figures 7
- Contact fluke 9
- Introduction 9
- Safety information 9
- Warning 9
- Symbols 10
- B specifications 11
- Dc ma measurement 11
- Ohms measurement 11
- Ohms source 11
- Rtd thermocouple calibrator 11
- Specifications are based on a one year calibration cycle and apply from 18 c to 28 c unless stated otherwise all specifications assume a 5 minute warmup period 11
- B 714b 12
- Calibration manual 12
- Rtd input and output 12
- General specifications 13
- Rtd thermocouple calibrator 13
- Accuracy of output floor 14
- Accuracy of reading floor 14
- B 714b 14
- B specifications 14
- Calibration manual 14
- Specifications are based on a one year calibration cycle and apply from 18 c to 28 c unless stated otherwise all specifications assume a 5 minute warmup period 14
- Thermocouple input and output 14
- Thermocouple ma input 14
- Thermocouple mv input 14
- Thermocouple mv output 14
- B specifications 15
- Rtd thermocouple calibrator 15
- B 714b 16
- Calibration manual 16
- General specifications 16
- Clean the product 17
- Maintenance 17
- Replace the batteries 17
- Warning 17
- B 714b 18
- Note fluke 5522a and fluke 8508a need an 8 hour warmup period before the calibration starts the 5522a needs to zero all the functions weekly and zero ohms output function every day the 8508a needs to zero the dc v measurement function the 4 wire ohms measurement function and the dci measurement function 18
- Required equipment 18
- The equipment listed in table 2 is necessary to do the calibration and test for the 712b the equipment listed in table 3 is necessary to do the calibration and test for the 714b 18
- B performance verification 19
- Verify ohms source 19
- B 714b 20
- Make the connections between the 712b and the 5522a as shown in figure 3 20
- Push to set the 712b to ohms measure mode 20
- Push until 4w shows on the screen 20
- Set the 5522a to output the ohms value at the second column in table 5 5 wait approximately 10 seconds for a stable output of the 5522a and verify that the 712b readings are within the limits shown 20
- Verify 4 wire ohms measure 20
- In table 6 21
- Make the connections between the 712b and the 5522a as shown in figure 21
- Output the ohms value at the second colum 21
- Set the 5522a to 21
- To set the 712b to ohms measure mode 21
- Until 3w shows on the screen 21
- Verify 3 wire ohms measure 21
- Wait approximately 10 seconds for a stable output of the 5522a and verify that the 712b readings are within the limits shown 21
- Adjust the ma source output of 5522a and make that 8508a shows as the first column in the table 7 and verify that the 712b readings are within the limits shown 22
- B 714b 22
- Make the connections between the 712b 8508a and 5522a as shown in figure 5 22
- Set the 8508a to dci measurement mode set the range of the dci measurement mode to 20 ma and the resolution of dci measurement mode to 7 1 2 digits 22
- Verify ma measure 22
- Rtd thermocouple calibrator 23
- A push 24
- B 714b 24
- B performance verification 24
- B push until mv is highlighted 24
- C push again 24
- Check that the 8508a readings are within the appropriate limits in table 8 24
- D push as necessary to enter source mode 24
- Make connections between the 714b and the 8508a with copper wire as shown in figure 6 24
- Set the 714b to output the mv values in table 8 24
- Set the 714b to source mv mode 24
- Turn the 714b on and let it warm up for 5 minutes 24
- Verify mv source 24
- Verify that the 714b performance is within the 1 or 2 year specifications as desired 24
- Make connections between the 714b and the 5522a with copper wire as shown in figure 7 25
- Push to set the 714b to mv measure mode 3 set the 5522a to the first value in table 9 4 output the mv values in table 9 and verify that the 714b readings are within the limits shown 25
- Rtd thermocouple calibrator 25
- Set the 714b to type k measure mode 25
- Set the 7526a to tc out type k 25
- Use k type tc sensor to connect the 7526a and the 714b as shown in figure 8 25
- Verify mv measure 25
- Verify tc measure type k 25
- B 714b 26
- Maintain the connections in figure 8 26
- Set the 714b to the values in table 11 and verify that the 7526a readings are within the limits shown 26
- Set the 714b to type k source mode 26
- Set the 7526a to tc in type k 26
- Set the 7526a to the values in table 10 and verify that the 714b readings are within the limits shown 26
- Verify tc k source 26
- Connect the 5522a 8508a and 714b as shown in figure 9 2 set the 8508a to dci measurement mode set the range of the dci measurement mode to 20 ma and the resolution of dci measurement mode to 7 1 2 digits 3 set the 5522a to source and make sure that 8508a shows the first dc current in table 12 4 output the dc current values in table 12 and verify that the 714b readings are within the limits shown 27
- Rtd thermocouple calibrator 27
- Verify ma measure 27
- Adjust ohms source 28
- B calibration adjustment 28
- Enter manual calibration mode 28
- Adjust 350 ω source 29
- Adjust 50 ω source 29
- Adjust 3500 ω source 30
- Adjust 500 ω source 30
- Adjust 0 ma trigger current 31
- Adjust trigger current for ohms measure 31
- Adjust 0 5 ma trigger current 32
- Adjust 0 ma trigger current 32
- Adjust 1 ma trigger current 33
- Adjust ohms measure 33
- Adjust 350 ω input 34
- Adjust 50 ω input 34
- Adjust 3500 ω input 35
- Adjust 500 ω input 35
- Adjust 0 ma input 36
- Adjust ma measure 36
- Adjust 24 ma input 37
- Adjust external trigger for ohms source 37
- Adjust 0 ma external trigger 38
- Adjust 1 ma external trigger 38
- B calibration adjustment 39
- Enter calibration mode 39
- Save data and reset the 712b system 39
- Adjust mv source 40
- Use 8508a to adjust the 5522a output 40
- Adjust mv measure 41
- Adjust internal cold junction temperature 42
- Use the fluke 9101 256 42
- Use a lag bath 44
- Adjust ma measure 45
- Connect the 5522a and the 714b via the fluke 75x 8014 cable as shown in figure 19 45
- The 5522a outputs 0 ma 45
- Save data and reset the 714b system 46
- Rtd thermocouple calibrator 47
- To prevent possible electrical shock fire or personal injury use only specified replacement parts 47
- User replaceable parts and accessories 47
- User replaceable parts for the 712b are listed in table 13 and shown in figure 20 user replaceable parts for the 714b are listed in table 14 and shown in figure 21 for more information about these items contact a fluke representative see the contact fluke section of this manual 47
- Warning 47
- B 714b 48
- Calibration manual 48
- Figure 20 user replaceable parts and accessories for 712b 48
- Rtd thermocouple calibrator 49
- B 714b 50
- Calibration manual 50
- Figure 21 user replaceable parts and accessories for 714b 50
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