Multifunction Process Calibrator RTD Thermocouple V/A Ohm Frequency Source 1825

Description

ETX-1825
Function:
1. A split-screen display. The upper display allows you to measure volts, current (with loop power), resistance and continuity test.
The lower display allows you to measure and source volts, current, resistance temperature detectors (RTD),
thermocouples (TC), frequency, and ohms.
2. Calibrates a transmitter using the split-screen.
3. The measure of thermocouple provides automatic reference junction
4. Automatic and manual cold end temperature compensation for TC.
5. Manual stepping and automatic stepping and ramping.
6. Super-strong protection: the waterproof grade is IP67.
Automatic protection against the signal terminals connect to the 220V.
7. Support for PC communication
Specifications:
Specifications are based on a one year calibration cycle and apply from +18 C to +28C unless stated otherwise.
All specifications assume a 10 minute warmup period.
DC Voltage Measurement
Range
Maximum measurement range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
28V
(upper display)
-33V-33V
0.001V
0.05+2
0.025+2
200mV
(upper display)
-80mV-80mV
0.001mV
0.05+20
0.025+20
-200mV-200mV
0.01mV
0.05+2
0.025+2
50V
(lower display)
-1V-60V
0.001V
0.05+2
0.02+2
100mV
(lower display)
-15mV-80mV
0.001mV
0.05+20
0.02+20
80mV-125mV
0.01mV
0.05+2
0.02+2
-10
C
-18
C
, +28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Input resistance: >1MΩ.
DC Voltage
Source
Range
Maximum output range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
100mV
-15mV-99.999mV
0.001mV
0.05+20
0.02+20
100mV-125mV
0.01mV
0.05+2
0.02+2
10V
0-11V
0.001V
0.05+2
0.02+2
-10
C
-18
C
, +28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Maximum load: 1mA or 1kΩ (It should be based on the lower load.)
DC mA measurement
Range
Maximum measurement range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
20mA
(upper display)
-24mA-24mA
0.001mA
0.05+2
0.025+2
20mA
(loop of upper display)
0-24mA
0.001mA
0.05+2
0.025+2
20mA
(lower display)
0-24mA
0.001mA
0.05+2
0.02+2
-10
C
-18
C
,+28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
.
Input resistance:
＜
100Ω.
DC mA
source
Range
Maximum output range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
20mA
0-24mA
0.001mA
0.05+2
0.02+2
20mA
(Transducer simulation)
0-24mA
0.001mA
0.05+2
0.02+2
-10
C
-18
C
, +28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Maximum load voltage: 20V, equivalent to voltage of 20mA on 1000Ω load resistance.
Resistance Measurement (upper display)
Range
Maximum output range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
400Ω
0-440Ω
0.1Ω
0.05+2
3200Ω
420Ω-3300Ω
1Ω
On-off test
0-200Ω
1Ω
0.05+1
-10
C
-18
C
, +28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Maximum load voltage: 20V, equivalent to voltage of 20mA on 1000Ω load resistance.
Resistance measurement
(lower display)
Range
Maximum measurement range
Resolution
Accuracy(Ω)
ETX-1825
ETX-2025
Two-wire, three-wire
Four-wire
Two-wire, three-wire
Four-wire
400Ω
0-440Ω
0.01Ω
0.25
0.15
0.15
0.10
3200Ω
420Ω-3600Ω
0.1Ω
1.5
1.0
1.0
0.5
-10
C
-18
C
, +28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Exciting current during measurement:
400Ω
：
0.4mA+-10%
；
3200Ω
：
0.2mA+-10%
。
Two-wire:
Does not include lead resistance
.
Three-wire:
Assumes matched leads with a total resistance not exceeding
25Ω.
Resistance
source
Range
Maximum output range
Resolution
External exciting current
Accuracy (Ω)
ETX-1825
ETX-2025
400Ω
0-440Ω
0.01Ω
0.40mA-2.50mA
0.25
0.15
3200Ω
400-3600Ω
0.1Ω
0.1mA-0.6mA
1.0
0.50
-10
C
-18
C
,+28
C
-55
C
temperature coefficient,+-0.005%FS/
C
.
Frequency measurement
Range
Maximum measurement range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
100Hz
1~99.999Hz
0.001Hz
0.02+1
0.01+1
1000Hz
100~999.99Hz
0.01Hz
10kHz
1k~9.9999kHz
0.1Hz
100kHz
10k~99.999kHz
1Hz
Sensitivity: 10Hz-10kHz,Vp-p>=1V; rest:Vp-p>=2V.
Wave form: Square wave. 5 counting points should be added to errors of other wave forms. Commercial frequency can be measured directly.
Frequency
source
Range
Maximum output range
Resolution
Accuracy ( % of reading + counts)
ETX-1825
ETX-2025
200Hz
0~200Hz
0.01Hz
0.02+1
0.01+1
2000Hz
0~2000Hz
0.1Hz
20kHz
0~20kHz
1Hz
Output amplitude: >=4.5Vp-p
；
Wave form: Square wave
Temperature, thermocouple
s
Graduation
Range
Resolution
Accuracy (
C
)
ETX-1825
ETX-2025
J
-200
C
-0
C
0
C
-1200
C
0.1
C
1.5
C
1.0
C
1.0
C
0.7
C
K
-200
C
-0
C
0
C
-1370
C
0.1
C
1.8
C
1.2
C
1.2
C
0.8
C
T
-200
C
-0
C
0
C
-400
C
0.1
C
1.8
C
1.2
C
1.2
C
0.8
C
E
-200
C
-0
C
0
C
-950
C
0.1
C
1.5
C
1.0
C
0.9
C
0.7
C
R
-20
C
-0
C
0
C
-500
C
500
C
-1750
C
0.1
C
4
C
2.5
C
2
C
2.5
C
1.8
C
1.4
C
S
-20
C
-0
C
0
C
-500
C
500
C
-1750
C
0.1
C
4
C
2.5
C
2
C
2.5
C
1.8
C
1.5
C
B
600
C
-800
C
800
C
-1000
C
1000
C
-1800
C
0.1
C
3.5
C
2.5
C
2
C
2.2
C
1.8
C
1.4
C
N
-200
C
-0
C
0
C
-1300
C
0.1
C
2.0
C
1.2
C
1.5
C
0.9
C
Errors of cold-junction compensation are not included in the table.
Accuracy of cold-junction compensation: 1.5
C
Temperature,
RTD
Graduation
Range
Resolution
Accuracy (
C
)
ETX-1825
ETX-2025
2-wire
3-wire
4-wire
Output
2-wire
3-wire
4-wire
Output
Pt100
-200
C
-850
C
0.1
C
0.7
0.4
0.7
0.4
0.3
0.3
Pt1000
-200
C
-650
C
0.4
0.3
0.3
0.3
0.15
0.15
Cu50
-50
C
-150
C
1.2
0.8
0.8
0.8
0.5
0.5
Cu100
-50
C
-150
C
0.7
0.4
0.4
0.4
0.25
0.25
As for exciting current during measurement, please refer to resistance measurement function.
As for allowable external exciting current during output, please refer to resistance output function.
2-wire: Does not include lead resistance.
3-wire: Assumes matched leads with a total resistance not exceeding 25Ω.
Accessories:
hard spot test leads (two sets), alligator clips (two sets), One 12V/1A power adaptor, PDF manual
Optional accessories:
1. 6 R03-model rechargeable batteries
2. 1 Metal Box
3. Communication line