TD7500 Process Signal Calibrator

Model: TD7500
Brand: TUNKIA

Product Description

TD7500 Process Signal Calibrator

1. Summary

TD7500 is a handheld thermal instrument and process signal measurement calibration instrument, with an accuracy of class 0.05, which can calibrate class 0.1 and below industrial sensors, transmitters, recorders and other thermal process instruments. TD7500 can calibrate thermal engineering secondary instruments,secondary signals of sensors, transmitters, and thermocouples, secondary instruments for RTD, secondary signals of RTD, pulse measuring instruments, process pulse signals.

2. Features

• DC voltage output/measurement: 10 mV~11 V;

• DC current output/measurement: 0.2 mA~24 mA

• DC resistance simulation: 4 Ω~4.8 kΩ;

• DC resistance measurement (2-wire/4-wire): 4 Ω~4.4 KΩ;

• Simulation and measurement of 6 types of thermal resistance (RTD) and 8 types of thermocouples (TC).

• Auxiliary power: 24 V Loop mode power.

• Voltage/current accuracy: class 0.05

3. Application

Specifications

4. Specifications

4.1 DC Power Output/Measurement

Electricity	Range	Resolution	Measurement Uncertainty (k=2). *( ppmRD+μV/μA)[1]**	Maximum Load Voltage/Current	Input Resistance
Voltage	100 mV	10 μV	200 + 25 μV	8 mA	1 MΩ
	1 V	100 μV	200 + 250 μV	8 mA	1 MΩ
	10 V	1 mV	200 + 2000 μV	8 mA	1 MΩ
Current	20mA	1 μA	200 +4 μA	12 V	<15Ω
Note [1]: RD is the reading value, the same below.

• Voltage output/measurement range: 10 mV~11 V

• Current output/measurement range: 0.2 mA~24 mA

4.2 DC Resistance Output/Measurement

Type	Range	Resolution	Measurement Uncertainty (k=2). *( ppmRD+Z)**	Input Current/Excitation Current
Output	400 Ω	10 mΩ	50 + 0.1 Ω	1 mA~10 mA
Output	4000 Ω	0.1 Ω	50 + 1 Ω	100 μA~1 mA
Measurement	4000 Ω	0.1 Ω	1 H	0.2 mA

• Resistance Output Range: 4 Ω~4.8 kΩ

• Resistance Measurement Range: 4 Ω~4.4 kΩ

• Resistance Measurement Method: two-wire or four-wire

4.3 Pulse signal output/measurement

Regulation/Measurement Range	Resolution	Measurement Uncertainty (k=2).
1 Hz~1000 Hz	1Hz	0.05%
1 kHz~10 kHz	0.1kHz	0.05%
1.0 CPM～2000.0 CPM	1CPM	0.05%

• Output Waveform Signal: square wave signal 5 Vpk

• Input Waveform Signal: square wave signal> 1 Vpk

4.4 RTD output/measurement

Type	Resistance Range ( Oh)	Temperature Range (°C)	Measurement Uncertainty (k=2, ±°C)		Annual Output Uncertainty (k=2, ± °C )
Type	Resistance Range ( Oh)	Temperature Range (°C)	Four-wire	Two/three-wire	Annual Output Uncertainty (k=2, ± °C )
PT100	18.5～391	-200～+850	0.35	0.5	0.35
PT200	37～782	-200～+250	0.2	0.3	0.2
PT200	37～782	+250～+850	1.0	1.5	1.0
PT500	92～1955	-200～+120	0.2	0.3	0.2
PT500	92～1955	+120～+850	0.4	0.8	0.4
PT1000	185～3910	-200～+100	0.2	0.4	0.2
PT1000	185～3910	+100～+850	0.3	0.5	0.3
CU50	39.2～82.2	-50～+150	0.5	0.8	0.5
CU100	78～165	-50～+150	0.25	0.5	0.25

• Cold Junction Temperature Compensation: Range: -25°C~+55°C; Resolution: 0.1°C; Measurement Uncertainty: 0.3°C

• Display Digits: 5 digits decimal, can be displayed and output by Ω, °C, °F

4.5 Thermocouple Output/Measurement TC

Type	Name	Voltage Range ( mV )	Temperature Range(°C)	Measurement Uncertainty (k=2, ± °C )
S	Platinum rhodium 10-platinum rhodium	-0.3～18.7	-50～0	2.0
			0～+1750	2.4
R	Platinum rhodium 13-platinum	-0.3～21.1	-50～0	1.9
			0～+1750	2.4
B	Platinum rhodium 30-platinum rhodium 6	0.77～13.9	400～+800	2.1
			800～+1800	1.8
K	Nichrome - Ni-Si	-5.9～54.9	-200～0	0.9
			0～+1370	1.2
N	Nichrome silicon - nickel silicon	-4.02～47.6	-200～0	1.4
			0～+1750	1.0
And	Nickel-chromium-copper-nickel	-8.85～76.4	-200～0	0.8
			0～+1000	0.9
J	Iron-copper-nickel	-7.93～69.6	-200～0	0.9
			0～+1200	0.7
T	Copper-copper-nickel	-5.65～20.9	-200～0	1.1
			0～+400	0.9

• Display Digits: 5 digits decimal, can be displayed and output by Ω, °C, °F

5. General Specifications

Power Supply	4 x 1.5V AA batteries;
Maximum Power Consumption	10 VA
Temperature Performance	Working temperature: -20°C~50°C; Storage temperature: -20 °C ~ 70 °C
Humidity Performance	Operating humidity: < 80% @ 30°C, < 70% @ 40°C, < 40% @ 50°C Storage humidity: (20%~80%) R·H, no Condensation
Altitude	< 3000 m
Quality	Approx 0.5 kg
Size	120 mm(W) × 60 mm(D) × 220 mm(H)

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