K-114/K-114A/K-114B

Cable converter for connecting Keller sensors to a computer — K-114/K-114A/K-114B

Конвертер RS485 - USB К-114 / K-114A / K-114B

Спецификация К-114/K-114A/K-114B Руководство по эксплуатации

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Delivery across Russia
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Description

The K-114 converter converts a USB signal into a standard half-duplex RS 485 signal and is used to connect devices to a computer with a USB port. The converter and connected transducers are powered via the USB connection. An external power supply can also be connected to power a large number of sensors. It is recommended to use the K-114 converter with Keller products.

The K-114 converter allows you to:

convert a USB signal to RS 485 (half-duplex);
measure signal voltage (0…12 V), for example, the voltage at the pressure transducer signal output;
measure power consumption of connected devices (in the range of 0…40 mA).

The K-114 converter features:

LED indication signaling the status and configuration of the converter;
isolation between the computer and the converter;
diagnostic tools.

Characteristic	Designation	Status	Min.	Typ.	Max.	Unit
Current consumption, K-114		Not connected	30	43	55	mA
Power consumption, K-114		Not connected	150	215	275	mW
Power supply of end devices	U-Out	No power source	11.2	11.8	12.5	VDC
Power supply of end devices	I-Out	With power source	-	-	150	mA
External power supply		Power source	12	15	20	VDC
Input voltage	U-In	K-114A / K-114B	0		12	VDC
Input voltage accuracy	U-In	RI ≥ 30 kΩ		0.2	0.3	%FS
Current measurement	I-Out		0		40	mA
Current measurement accuracy	I-Out			0.2	0.3	%DGB
Data transmission speed	slow	Max. transmission distance ≤ 1 km	-	-	250	kbps
	high	Max. transmission distance ≤ 20 km	-	-	20	Mbps
Protection class K-114	Protection Class		IP 40	-	-	-
Fuse (USB)	F1	No power source		0.5		A
Storage and operating temperature			-10	20	50	°C

Technical Data
Applications

Characteristic	Designation	Status	Min.	Typ.	Max.	Unit
Current consumption, K-114		Not connected	30	43	55	mA
Power consumption, K-114		Not connected	150	215	275	mW
Power supply of end devices	U-Out	No power source	11.2	11.8	12.5	VDC
Power supply of end devices	I-Out	With power source	-	-	150	mA
External power supply		Power source	12	15	20	VDC
Input voltage	U-In	K-114A / K-114B	0		12	VDC
Input voltage accuracy	U-In	RI ≥ 30 kΩ		0.2	0.3	%FS
Current measurement	I-Out		0		40	mA
Current measurement accuracy	I-Out			0.2	0.3	%DGB
Data transmission speed	slow	Max. transmission distance ≤ 1 km	-	-	250	kbps
	high	Max. transmission distance ≤ 20 km	-	-	20	Mbps
Protection class K-114	Protection Class		IP 40	-	-	-
Fuse (USB)	F1	No power source		0.5		A
Storage and operating temperature			-10	20	50	°C