JUNCTEK KL-F Series - Chapter 2: Meter Instruction; Measurement Module Introduction

Hangzhou Junce Instruments Co., Ltd.
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Chapter 2 Meter Instruction
1. Measurement Module Introduction
Figure 3-1-1 Schematic diagram of KL-F series measurement module
Table 3-1-1 KL-F series measurement module instructions
No.
Instruction
No.
Instruction
1
Indicator light
5
Display reserved
interface
2
2-wire, 3-wire power
supply selector switch
6
Relay output control
interface
3
Power supply interface
7
Sampler interface
4
485 communication
connection interface
8
External temperature
measurement interface
(1) Indicator light
The indicator light can be used to check the output status.
(2) 2-wire, 3-wire power supply selector switch
The toggle switch can be used to select external power supply or
self-powered. The switch to 2W is suitable for self-powered; the switch to 3W
is suitable for external power supply.
(3) Power supply interface
There are three power supply interfaces, battery positive interface: Vsns,
external power supply positive interface: VEXT, external power supply
negative interface: GND.