Thermal resistance calibrator with pulse generation function 10 ～ 500Ω

I. Overview:
HK200 is a small signal generator that can generate two kinds of signal thermal resistance and PWM signal.
The module adds two types of resistance signal output, as long as the input temperature value is converted into the corresponding resistance output.
This module is simple to use, input data through key operation, and immediately update the output.

Applications:
● signal generator;
● Instrument calibration;
 

Technical parameter table:
Output: Range: Output range: Resolution
Resistance 500 ohms 500 ohms 10 to 500 ohms 0.01 ohms
Pulse frequency 100KHz 1Hz ~ 100KHz 1Hz
Duty ratio is more than 99%, 1% ～ 99%, 1%
Thermal resistance Pt100 -200 ~ + 850 0.1'C
Thermal resistance Cu50 -50 ~ + 150 0.1'C
  
Working voltage 7 ～ 12 VDC
Working current <50 mA
Size 57 * 45 * 20 mm length X width X height

Interface description and related operations
P1 interface (power)
VDD: power positive (7 ～ 12V)
GND: power negative

P3 interface (output signal)
RES: 10 ~ 500Ω resistance is generated.
P1: Generate PWM pulse.
GND: negative power supply.

Operation instructions:
(1) Key description:
UP: Previous page;
DOWN: next page;
ADD: auto-add key;
SUB: Decrement key;
FUN: function key; (select operation bit for setting data)

4.1. Adjust 10 ～ 500Ω resistance
Interface display font:
The first line "1. RES = 10 ～ 500Ω"
The second line "* 0.01" 0.00Ω "

4.2.Adjust the pulse signal frequency 1Hz ~ 100KHz
Interface display font:
First line "2. Frequency"
The second line "* 1 1000Hz"

4.3. Adjust the pulse signal duty ratio 1% ～ 99%
Interface display font:
The first line "3.Duty Cycle"
The second line "50%"

4.4. Generate Pt100 thermal resistance signal
Interface display font:
The first line "4.Pt100-RTD"
The second line "* 0.1" 0.0'C "

4.5 Generate Cu50 thermal resistance signal
Interface display font:
The first line "5.Cu50-RTD"
The second line "* 0.1" 0.0'C "

Measured map: