1. 
   

   Introduction

   

1.1 NOTICE

Dear Customer: Thanks for your using Kehao products. Please read the manual carefully before using the recorder.

• Please check whetherthe appearance your meter is ok and item no. same as ordered after opening
• Please contact us to change your meter immediately if there are above problems.
• Please shall know the connections and operations of your meter first before testingand installing the meter.
• Please use your meterin its required conditions. Please do not open the meter arbitrarily in order to avoid danger. 
• Please contact us to open the meter under the instruction and approval of our technical team if the meter has error.
• Please calibrateyour meter one time every year. If the error is beyond its range, usually caused by moisture,
• dust and corrosive gas, please clean and dry the inner part of your meter. Please contact usif still any problems.

1.2 Reading Guide

KH100 series display is 7 segments LED, so there are some differences in some characters display contrast to the one you usually know. Please see the table as follows:

This introduction adopts the usual indication.

1.3. Main Features

• High accuracy: +-(0.2%FS+1)
• Programmablesingle or universal analog input signals: C. RTD, mA DC, mV DC. Suitable for measuring and displaying temperature, pressure, humidity, flow level, vibration etc.
• Dual windows, four digit, 7 segment LED display, easy to set parameter and alarm value.
• SMT technology, design more concise; adopts advanced modular structure, flexible configuration.
• Universal 85-240VACor 24VDC power supply option, with thunderbolt proof and 10second protection from connecting to 380VAC by mistake.
• Supporting digit filtering, digital offsetting and thermocouple cold junction auto compensation, flexible maintenance and easy operation.
• Supporting up to 4 alarm outputs, each alarm can be configured up to HA, HHA, LA,LLA for limits alarms.
• Supporting auxiliarypower supply; 5VDC, 12VDC, 24VDC for external sensor and transmitters.
• Supporting current retransmission output for signalfurther transmission. 
• Supporting RS485, RS232 communication based on MODBUS-RTU protocol, configurablewith SCADA, OPC servers etc for remote place communication.

2. Technical Specification

• Input Signal

T.C : K、S、E、J、T、B、N

RTD : Cu50、Pt100

Linear voltage : 0－5V,1-5V,0-10VDC

Linear current : 0－10mA, 4－20mA

(should connect external precision resistor, 500Ω for 0-10mA or 250Ω for 4-20mA)

Extended signal: one input signal can be customized (Please advise the signal index no. when non-linear input)

• Measure range:

Thermocouple: K ( -50 ~ 1300℃ )、S ( -50 ~ 1700℃ )、T ( -200 ~ 350℃ ) 、E ( 0 ~ 800℃ )、J ( 0 ~ 1000℃ )、

B ( 300 ~ 1800℃ )、N ( 0 ~ 1300℃ )

RTD: Cu50 ( -50 ~ 150℃ ) 、Pt100 ( -200 ~ 600℃ )、Cu100 ( -50 ~ 150℃ )

• Linear input：

-999 to +9999 defined by user.

• Measureaccuracy:

 0.2 grade when RTD, linear voltage, linear current, T.C input with free points cold junction compensation  or copper resistance compensation)                    

0.2%FS±2.0℃ when T.C input with temperature compensation on cold-junction inside the meter

• Respond time:

≤0.5s when the filtering parameter FiL=0

• Control way:

 On-off, Auto PID self-tuning, manual PID

• Output Specification:

Relay alarm outputs: 220VAC/2A, 220VAC/2A

SSR voltage driving output: 12VDC0/30mA

SCR contactless output: 100-240VAC/0.2A (continually), 2A(when 20mS, the repeated period time is more than 5S)

Auxiliary power supply: 5VDC, 12VDC, 24VDC

Linear current retransmission output: 4-20mA default or 0-10mA or customized

Communication output: RS485, RS232 serial interface

• Alarm Function

 High limit, higher limit, low limit, lower limit, dFHA, dFLA , up to 4 alarm output.

• PowerSupply:

85－240VAC，-15%，+10% / 50－60Hz；OR 24VDC/AC，-15%，+10%

• Power Consumption: ≤5W
• Ambient Temperature:

0－50℃

• Ambient Humidity:

＜85%RH

• Front Panel Dimension

 96x96mm, 160x80mm, 80x160mm, 48x96mm, 96x48mm, 72x72mm, 48x48mm

• Panel Cutout Dimension

92+0.5x 92+0.5mm, 45+0.5 x 92+0.5mm, 92+0.5×45+0.5mm, 152+0.5 x76+0.5mm,

76+0.5 x 152+0.5mm, 68+0.5 x 68+0.5mm, 45+0.5 x45+0.5mm.

• Depth MountingSurface: ≤100mm.

3. Order Code

KH103/T-     –     –     –     –     –     –     –     –

• ②    ③    ④   ⑤    ⑥    ⑦    ⑧    ⑨   ⑩

Selectable Module

Eg :The order code: KH102-G-R1A-I1-N-A, Model: KH102, Panel Size: 96x96mm, A relay NO alarm output, a 4-20mA current retransmission output, universal input, 220VAC power supply.

The ordering code of KH103/KH103T is made up of 10 parts as follows:

• : Shows the model of KH103or KH103T

KH103 or KH103T PID process controller with measured

accuracy +-0.2%FS

• : Shows dimension