Summary:
ET2715 Current and Voltage Calibrator is a handheld calibration instrument with high precision, high resolution and high reliability that integrates output and measurement of V, mV, mA and Hz signals. The meter adopts large liquid crystal display with clear reading, and it also has adjustable back light source and automatic shutdown function. The meter can be supplied by dc or ac power supply, which is more convenient to use.

Features
Accuracy:0.02% or 0.05%
Perfect performance on waterproof protection: IP67 grade
In case of connecting 220V with automatic over voltage protection function.
With manual stepping, automatic stepping and 0 ~ 100% output of phase step and ramp function
LED with white backlight
Source of voltage, current and frequency.
Measure of voltage, current, loop current and frequency.
Manual stepping and automatic stepping and ramping.
 
Summary of Source and Measure Functions

Function	Measure	Source
DC V	0~30 V	0~10 V
DC mV	0~100 mV	0~100 mV
DC mA	0~24 mA	0~24 mA
Frequency	1.000Hz~99.999kHz	0.00Hz~20.000kHz
Others	24V power supply, Step, Ramp.

Specifications
Specifications are based on a one year calibration cycle and apply from +18°Cto +28 °C unless stated otherwise. All specifications assume a 10 minute warmup period.
1,DC Voltage Measurement

Range	Maximum measurement range	Resolution	Accuracy (% of reading + Counts)
			ET2715(0.05%)	ET2715(0.02%)
30V	0V~31V	0.001V	0.05+2	0.02+2
100mV	-15mV~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.

2,DC mA Measurement

Range	Maximum measurement range	Resolution	Accuracy (% of reading + Counts)
			ET2715(0.05%)	ET2715(0.02%)
20mA	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.

3,Frequency Measurement

Range	Maximum measurement range	Resolution	Accuracy (% of reading + Counts)
			ET2715(0.05%)	ET2715(0.02%)
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; the rest:Vp-p≥2V. Wave form: 5 counting points should be added to errors of other wave forms. Commercial frequency can be measured directly.

 
 
 
 
 
 
 
 
 
Using environment temperature:-18℃~55℃
Store environment temperature:(-20 – 60)°C
Relative humidity :0~ 90RH No condensation
Weight:0.35Kg
Size:185mm×93mm×47mmm
Power supply: 6 R03-model rechargeable batteries or power adapter
communication mode:RS232
 
 
1,Standard Accessories
A set of  calibrator also includes the following items:
hard spot test leads (one set)
alligator clips (one set)
One 12V/1A power adaptor
 Users Manual
2,Optional Accessories
6 R03-model rechargeable batteries
1 Metal Box
18P02 communication wires
Power adapter(18A52)
Probes(18A53)